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Sure-Grip® 3-jaw Power Chucks
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6/11/2009
Sure-Grip® 3-jaw Power Chucks
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge Sure-Grip® Power Chucks are lever-operated, counter-centrifugal and dynamically balanced. This enables you to continually operate your CNC lathe at higher spindle speeds and feed rates with less concern for loss of jaw force normally associated with wedge-style chucks. Sure-Grip Power Chucks mount directly to ANSI A2-4, A2-5, A2-6 and A2-8 spindles, eliminating the added tolerance buildup when using special adapter plates. Sure-Grip Power Chucks come standard with 1.5mm x 60° serrated master jaws designed to ISO specifications. Quick-change chucks available. Hardinge manufactures a complete line of jaws for all brands of chucks.
Order Hardinge power chucks online at www.shophardinge.com
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European-Style Collets for Multi-Spindle Automatic Machines
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6/11/2009
European-Style Collets for Multi-Spindle Automatic Machines
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge continues to expand their line of European-style collets to meet the increased demand from multi-spindle machine owners around the world. Hardinge will manufacture and inventory solid collets, master collets & pads, solid feed fingers and master feed fingers & pads. They will fully support Euroturn, Gildemeister, Index and Schütte machines with 24-hour shipping of standard fractional and whole metric sizes. Decimal sizes and products for other brands of machines will be available within a 5 to 7 day delivery. Hardinge will offer a semi-finished blank program for pickoff burring collets and special-shape collets for fast turnaround. Hardinge will strive to be the supplier of choice for collets, feed fingers and pickoff collets for the automatic multi-spindle machines, states Tom Mitchell, General Manager, Hardinge Workholding Group.
Hardinge stocks spindle tooling for automatics, turret lathes and rotary transfer machines. Buy collets, feed fingers, pads and quick-change collet systems online at www.shophardinge.com.
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Hardinge® expands their line of European-style Collets and Feed Fingers
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6/11/2009
Hardinge® expands their line of European-style Collets and Feed Fingers
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge Continues to expand their line of European-style collets to meet the increased demand from multi-spindle machine owners in North America. Hardinge will manufacture and inventory solid collets, master collets & pads, solid feed fingers and master feed fingers & pads. They will fully support Euroturn, Gildemeister, Index and Schütte machines with 24-hour shipping of standard fractional and whole metric sizes. Decimal sizes and products for other brands of machines will be available within a 5 to 7 day delivery. Hardinge will offer a semi-finished blank program for pickoff burring collets and special-shape collets for fast turnaround. ?Hardinge will strive to be the supplier of choice for collets, feed fingers and pickoff collets for the automatic multi-spindle machines,? states Cal Macomber, Director of Sales and Marketing for Hardinge Workholding Group.
FYI: Match the collet to the bar stock
If you use inch bar stock, you should use fractional collets ? NOT metric. Very few metric sizes have a direct fractional equivalent. Metric collets for metric bar stock, fractional collets for inch bar stock, and decimal collets for decimal bar stock will provide the best results. Match the collet size (order hole) exactly to the workpiece or bar stock diameter. If you are using ¼-inch bar stock with a 6mm collet, you could get push-back, chatter or poor concentricity because the collet is smaller than the bar stock. Most operators don?t realize the ramifications of such a small variance in diameter. If the collet order hole is larger than the workpiece or bar stock, the part may pivot at the line of contact at the face of the collet. If the collet order hole is smaller than the workpiece or bar stock, the edges of the slots will bite into the workpiece and may cause damage or mark the bar. When the collet is the proper size for the workpiece or bar stock, there is a full bearing along the angle and the circumference of each segment of the collet where they mate with the spindle angle (seat)
Use exact finished stock whenever possible to increase your productivity and profitability. By using exact finished stock, you will increase cycle time because you have less material to remove and also less chips to manage. You will also require less tooling, having eliminated the roughing and finishing tools. Cost studies have proven substantial savings when switching to exact finish bar stock when the job permits.
Hardinge has listened.
Previously, very few North American collet manufacturers have carried fractional European-style collets, and fractional collets come with a long delivery time from European manufacturers. Hardinge is stepping up to the plate and responding to customer requests by manufacturing and stocking many popular European-style collets in Elmira, New York. Hardinge has been making multi-spindle specials-to-order since the 1960?s, and stocking a limited range of European-style collets for the past 25 years. Now, they will be filling their shelves with more styles and sizes! If you are a large user of multi-spindle collets, give Hardinge a call to make sure that they have set up inventory to accommodate your company?s needs!
For more information call Hardinge at 800-843-8801 or visit the e-commerce site at www.hardingetooling.com.
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Hardinge introduces Quick-change FlexC Vulcanized Collet Systems
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6/11/2009
Hardinge introduces Quick-change FlexC Vulcanized Collet Systems
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge FlexC Collet Systems are flexible, sealed collet heads that interchange in seconds and are available with spindle mounts for all brands of CNC lathes. The FlexC line is manufactured in Elmira, New York and compliments their large selection of collets, step chucks, collet chucks and other workholding products.
Pull-back thru-hole, pull-back stationary stop and push-to-close dead-length® styles are available for main and sub-spindle CNC lathe applications. Purchase one spindle mount and interchange collet heads from job to job. Hardinge FlexC collet heads are fully interchangeable with competitor?s models. Hardinge guarantees accuracy within .0004" (.010mm) TIR for the collet system models A and D, and .0008" (.020mm) TIR for style DL.
The changeover concept is simple using a manual wrench to compress the collet for quick removal or replacement in seconds. A typical FlexC collet head has a gripping range of .020" (.5mm) above and below its nominal size to allow variation in bar stock without having to change the collet. There is no collet shank, therefore, the collet segments remain parallel to the stock even when there are variations in the stock size. Parallel clamping minimizes stock "push back" and requires less draw bar force to achieve the same gripping capability as conventional collets.
Hardinge has invested in the latest vulcanizing machines made by DESMA, a world leader in injection molding technology. The vulcanization process joins the collet segments together as a one-piece unit with a permanent bond. Vulcanized rubber has elasticity for repeated opening and closing over the life of the collet that makes it ideal for a quick-change product. It will not become brittle and is resistant to coolant. Because of the sealed design, it prevents chips from entering the collet system. Hardinge test results, from using repeated cycles of collet actuation, assures long life of the Hardinge vulcanization process.
The hardened chrome-nickel steel collet head is hard-turned in one setup on a Hardinge® RS 65 high-precision turning center. Keyways and slots are milled on a Bridgeport® XR 1000 high-performance vertical machining center. Hardinge guarantees the collet head concentricity of .0002" (.005mm) TIR for round smooth after the segments are joined in the vulcanization process. Turning, milling and vulcanization are all done in a dedicated work cell for optimum efficiency to bring the highest level of quality and throughput for shortened delivery time to the customer.
An Emergency Collet can be kept on hand for just-in-time machining when the proper size hardened collet is not in your tool drawer. The taper and collet seat of an emergency collet are hardened while the ID and the face of the collet head are soft. A face boring ring will hold the collet in nominal position for boring to size. Emergency collets are reusable. Standard collets are stocked in round smooth, round serrated and hex shape. Square sizes are made to order. Special applications including stepped holes, special shapes, off-center, etc. can be custom-made from stock blanks. FlexC Collet Systems will be available for multi-spindle lathes in the near future. For more information contact Hardinge at 800-843-8801.
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Hardinge is right on target for Ammunition, Firearm, Optical Lens and Paintball Gun manufacturing
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6/11/2009
Hardinge is right on target for Ammunition, Firearm, Optical Lens and Paintball Gun manufacturing
6/11/2009
Provided By
Hardinge Workholding Division
Many Hardinge employees enjoy the sport of hunting and competitive target shooting and take pride in bringing these high precision products to market. While Hardinge does not manufacture the bullets, they do make collets and machines used for turning the bullets, trimming bullet jackets, grooving the shanks of the cartridges or crimping the cartridge to the bullet. Solid brass bullets can be turned on a lathe. When bullet jackets and cartridges are punched and formed in a swaging process they may be trimmed and grooved using a lathe or other specialty machines.
Traditional bullet jackets are made of copper or gilding metal, an alloy of copper and zinc. Other materials used in bullets today include aluminum, bismuth, bronze, copper, plastics, rubber, steel, tin, and tungsten. Hardinge provides custom collets with micro finishes and critical radii to prevent marking of the soft materials that are being used. Hardinge supplies off-the-shelf and custom collets for firearm, ammunition, optic and paintball gun manufacturers worldwide. Collets hold barrels, firing pins, trigger mechanisms, optical lenses, bullet jackets and cartridges.
The push-to-close style collet and stationary collet (shown) will grip a cartridge for either trimming to length or forming of the extractor groove. The smaller double-angle Erickson-style collet grips a bullet jacket for trimming to length.
Drawings and sample parts can be sent to Hardinge Inc., One Hardinge Drive, Elmira, New York 14902; email to info@hardinge.com; fax 607-737-0090; or phone 800-843-8801. Hardinge is a pre-approved government vendor.
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Hardinge partners with Technitron for rotary table interfacing and installation
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6/11/2009
Hardinge partners with Technitron for rotary table interfacing and installation
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge manufactures enhanced gear-driven rotary tables and indexers along with leading edge direct-drive rotary products. Hardinge rotary products are of a universal design for compatibility with any brand of machining center and can be run with a servo control box or as a 4th-axis interface. Hardinge is partnering with Technitron Inc. for their expertise in rotary interfacing with most brands of machine tools with Fanuc, Mitsubishi, Yasnac and Siemens controls for both new machine orders and existing machines. Hardinge will continue to install their rotary products on their own brand of Bridgeport® machining centers.
Technitron, (Cincinnati, Ohio) supplies complete turnkey installations and custom interfacing services for Hardinge 4th-axis rotary tables and indexers. They have experience in 4th-axis and dual-axis tables and indexers for vertical and horizontal machining centers including machines with linear and rotary pallet shuttles. ?Their knowledge and expertise with non-Hardinge brand machine tools and various CNC controls will expedite the quoting process, delivery and installation for 4th-axis rotary applications here in North America,? states Mike Levanduski, Director of Sales at Hardinge Workholding.
Hardinge has rotary solutions for high-speed applications including drill & tap, high-speed machining and laser processing. Hardinge?s direct-drive technology offers zero backlash for rapid bidirectional movement to provide cycle time reduction with high accuracy and repeatability. Their standard single axis gear-driven indexers provide flexible gripping options for rugged machining applications. Hardinge also manufactures dual-axis indexers and plate & cube trunnion products for multiple part setups. Hardinge rotary products can be purchased direct from Hardinge or from Technitron. For more information call Hardinge at 800-510-3161, or contact Mike Ortman at Technitron at 513-531-2926.
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New rigid, low-profile rotary table
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6/11/2009
New rigid, low-profile rotary table
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge?s new GD210LP low-profile rotary table provides rigidity, speed, accuracy and repeatability in an affordable package. High stiffness and super rigidity are accomplished with large diameter bearings and a fail-safe clamp system allowing part weight of up to 220 pounds. Radial load testing indicated a stiffness of 4x greater than a competitive model. The GD210LP uses up to 233ft-lb/315Nm of clamping torque to handle off-center drilling, cross-axis milling and other high-force cutting applications. A fast clamp and release in milliseconds reduces cycle time. Hardinge?s hardened and ground steel cross-axis helical gear provides much longer life and continued accuracy when compared to softer gears and worm gears found in other models.
The Hardinge GD210LP has a 210mm slotted face plate that is precision ground on a Kellenberger® grinding machine and features rapid table rotation of up to 40 rpm. The faceplate can be removed to mount a manual jaw chuck directly to the A2-5 spindle for ease of gripping round parts. The rotary table can be operated as a standalone unit (horizontal or vertical) with a servo control, or as a true 4th axis direct connected to the machine. The low-profile footprint takes up minimal space on the table allowing vises or other fixtures to remain in place for other jobs reducing setup and teardown.
Hardinge guarantees ±15 arc-sec accuracy and ±3 arc-sec repeatability based on true bidirectional testing. Double eccentrics design (not single) provide for the finest possible gear mesh from the factory. Customers can perform future gear wear compensation for extended life and improved accuracy over time. For more information call 800-510-3161.
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Dual-axis multiple-spindle rotary system
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6/11/2009
Dual-axis multiple-spindle rotary system
6/11/2009
Provided By
Hardinge Workholding Division
When used on a 3-axis VMC this dual-axis positioning system will eliminate the need for sine plates and other expensive fixtures for angular milling. The dual-axis unit features rugged, dual-bearing spindles and a bearing pillow block for rigid, accurate positioning. The tilting 5th-axis features the sturdy 16C rotary unit, while the rotating 4th-axis can be configured with either dual, triple or quad 5C threaded-nose spindles.
The base 16C rotary unit has a total 360° tilt (±180° from the 12-o?clock position). Optional adjustable hardware limit switches and programmable software limits are available to limit travel for protection when large workholding fixtures and parts are being machined. These safety features are available to reduce the risk of possible crashes when machining oversized parts. Pneumatic spindle clamps, located in the 16C spindle and the end support bearing, eliminate slippage when performing high-force machining operations. The 5C2 rotary configuration is precision aligned to the spindle center within ±0.0005? (.0127mm).
The 4th-axis 5C rotary unit will index at a fast 360° per second with a maximum runout (TIR) of 0.0002? (.005mm). The 5C threaded-nose spindle(s) will accept collets, step chucks, manual chucks, expanding collets and face or fixture plates. Multi-spindle systems are available in dual, triple and quad configurations for increased productivity. Choose from pneumatic high-force collet closers with 1950lb (885kg) of drawbar force, or pneumatic fail-safe, thru-hole collet closers. The fail-safe design assures that parts will remain clamped if loss of air should occur. Hardinge?s 2-axis Rotary Systems can be operated using Hardinge servo control boxes, and are also 4th and 5th-axis compatible. Hardinge Inc., 800-510-3161.
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Hardinge?s next-generation 5C2 Rotary indexer is lean and mean
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6/11/2009
Hardinge?s next-generation 5C2 Rotary indexer is lean and mean
6/11/2009
Provided By
Hardinge Workholding Division
The evolution of the Hardinge 5C rotary system began in 1901 with the production of Hardinge?s first 5C collet. Hardinge introduced the 5C ?threaded-nose? spindle in 1940 on a precision bench lathe. In the 1960?s they manufactured a 5C manual indexer using their threaded-nose spindle and collet closer design. Later the Hardinge 5C rotary system was manufactured based on their original 1960?s mechanical design. Today Hardinge takes the 5C indexing market to the next level with more accuracy, more spindle clearance, more axial load and more radial load with their 5C2 Rotary Indexer.
Hardinge has streamlined their indexer body to a curved front casting over the spindle and has made the handle removable for increased spindle clearance and tool access. Their new robust, dual-bearing spindle accommodates heavier radial and axial loads increasing overall indexing capabilities. 100-lb (50kg) part weight and 1000-lb (4448N) tailstock thrust per spindle is not a problem ? even on a quad unit with tailstocks. A hardened and ground steel worm gear with cross-axis helical gears and a hardened and ground steel worm drive shaft provide high accuracy and reduced wear. Double eccentrics provide the finest gear mesh adjustment. Hardinge has lowered the backlash range and improved accuracy overall. The customer can perform future gear wear compensation for extended life and improved accuracy over time. The Hardinge 5C2 unit takes the field with a ±4 arc-sec repeatability, ±25 arc-sec accuracy and a maximum runout of .0002? (.005mm) TIR. Each unit shipped contains a printout of accuracy ? final inspection is performed using a Heidenhain encoder mounted directly on the spindle nose to assure final positioning accuracy and repeatability.
Hardinge offers three collet closer options to best suit the shop requirement. The pneumatic fail-safe closer provides 1760-lbs (798kg) of drawbar force and features a 27mm thru-hole. The pneumatic high-force closer allows reduction of gripping force for delicate parts. The manual closer is lever-operated with 950-lbs (431kg) of drawbar force.
It is easy to integrate the 5C2 Rotary Indexer into your CNC manufacturing application for true 4th axis interpolation. The Hardinge system is compatible with Fanuc, Siemens, Heidenhain, Hurco, Milltronics, Fadal, Haas Yaskawa and other CNC systems. The 5C2 is industry compatible for drop-in replacement with fast 360°/sec indexing speed. The Hardinge design incorporates a collet-ready spindle for total gripping flexibility. Collets, step chucks, expanding collets and manual jaw chucks can be used without the use of an adapter. This allows a wide variety of gripping options to handle most part sizes, shapes and materials.
5C2 Rotary Indexers are available in single, dual, triple and quad configurations with or without tailstocks. For more information contact Hardinge Inc. at 800-510-3161, fax 607-734-3886, or order online at www.hardingetooling.com.
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Hardinge manufactures TF25-OG Overgrip Pickoff Collets for Cincom M20 and L720 Swiss Turning Centers
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6/11/2009
Hardinge manufactures TF25-OG Overgrip Pickoff Collets for Cincom M20 and L720 Swiss Turning Centers
6/11/2009
Provided By
Hardinge Workholding Division
Overgrip collets, also referred to as over-the-shoulder collets, are used on a pick-off spindle when it is required to clear a shoulder and grip on a smaller diameter beyond. A good example of this type of part would be a screw. In collaboration with Citizen Machinery Tech Center, managed by Bob Meunier, Hardinge has developed and now manufactures standard TF-25 OG overgrip collets for Citizen M20 and L720 lathes. Extra spread is required to open the collet wide enough to go over the screw head or larger diameter. Hardinge?s collet design incorporates teardrop slots and reduced wall thickness for maximum flexibility for the overgrip pick-off process. A double-angle taper reduces the contact surface, which provides for quick opening of the collet. Hardinge hardened and ground collets provide high accuracy and repeatability with precision in the collet back bearing and concentricity at the gripping area. Order holes are finish-ground on a high-precision Tripet internal grinding machine. The grip diameter (A), grip length (B) and the recessed part diameter (C) are required to manufacture the overgrip collet for your specific part. A semi-finished stock program is in place at Hardinge to provide a quick turnaround from time of order.
Marubeni Citizen-Cincom is a leading manufacturer of Swiss-type turning centers. These machines are used extensively to manufacture an array of products, including medical instruments, electronics, fiber optics, automobiles, business machines, aerospace, defense, firearms, tools, valves, fasteners, and many others. Citizen Machinery America has partnered with Hardinge in their quest to develop solutions that will increase productivity and throughput in the Swiss turning industry. ?Our mission is to provide innovative tooling ideas and creative machining solutions to existing Citizen machine owners as well as new machine buyers?, states Jim Cepican, General Manager of Citizen?s Tooling and Accessories Division. Citizen Machinery America offers Cool Blaster high-pressure coolant systems, custom tool holders, thread whirling attachments and adaptive guide bushing spindles designed to provide reduced cycle time, improved tool life and increase throughput. ?We leave the collets and guide bushings to the experts. Hardinge has been in the business for over one hundred years and they have a proven reputation for long-lasting, high quality products that the medical and aerospace demands, says Jim. The overgrip pickoff collet is one way of expanding or enhancing our machine?s capability. We are extremely pleased with the quick turnaround on the prototype that totally met our specs the first time out the door. The Hardinge workholding group is highly-tuned to the industry and very attentive to our needs.?
The Citizen M20 and L720 Swiss Turning Centers have extra stroke built into their sub-spindle to accommodate an over grip collet with a maximum recessed part diameter (extra spread requirements) of up to 3mm. Hardinge manufactures headstock collets, pickoff collets and carbide guide bushings for all Citizen machines. Their manufacturing facility is located in Elmira, New York. For more information call 800-843-8801, or contact Citizen Machinery America at 413-786-6655.
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Adapters allow collet-precision work on jaw-chuck lathes
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6/11/2009
Adapters allow collet-precision work on jaw-chuck lathes
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge HCAC Collet Adaptation Chucks will adapt any spindle to accept C-series collets, 3J collets, B42/ B65 collets, #22/ #11 B&S collets, style-S master collets and dead-length® collets. It is possible to increase your machining capabilities by substituting a collet chuck for a jaw chuck for part diameters up to 4 inch depending on the spindle size.
The benefits of using collet chucks in place of jaw chucks include:
? Lighter weight, no hoist required to mount on spindle
? Faster job setup time than a jaw chuck
? Faster acceleration and deceleration times due to less weight and smaller diameter
? Higher spindle speeds for reduced cycle times
? Optimum gripping with higher precision capability
? Capable of using master collets and pads
? Improved part concentricity over jaw chucks
? Eliminate time spent on boring jaws
* No hazard of jaws flying off
Hardinge OD Sure-Grip® Dead-length® Collet Chucks feature a parallel gripping, 4-split collet head for maximum gripping and instant centering. Collet heads are quick change and have a 1mm gripping range to accommodate bar stock or piece part variation. The Hardinge design provides part length control for consistency from part-to-part and includes a non-stick feature for instant, repetitive collet opening. The Hardinge OD Sure-Grip Collet Chucks are ideal for twin-spindle applications eliminating drive fault situations that could be caused by collet pullback. These collet chucks are available in 42, 65 and 90mm. For more information call 800-843-8801.
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Collets, Feed Fingers & Pads for Davenport Machines
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6/11/2009
Collets, Feed Fingers & Pads for Davenport Machines
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge has been manufacturing precision collets for over a century, and continues to be a major supplier to the Davenport industry. They offer solutions for Davenport machines of all ages with off-the-shelf delivery for many common sizes in standard and oversize collets and feed fingers.
Hardinge manufactures solid collets, extended-nose collets, solid burring collets, quick-closing (over-the-shoulder) burning collets and master burring collets with nylon pads. Feed fingers are available in solid, squirrel cage, stock saver, style-B master and style-AF master with adjustable tension. Hardinge style-B master feed fingers and pads are the most practical for high production bar machining. There are no screws or pins to hold pads in place, the pads cannot come loose by design and they offer full bearing on the bar stock. AF-style masters with pads can be adjusted to accommodate thin-wall tubing and delicate stock. AF guide bushings control bar whip to minimize ?hang ups? and allow a better finish on the part being machined. Hardinge specializes in custom-manufactured products for high-production environments and is an ISO-certified facility that manufactures to rigid specifications including material, heat treatment and accuracy. Hardinge collets are made from high nickel alloy for wear and flexibility, and are precision ground to exacting tolerances. For more information call 800-843-8801.
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Hardinge direct-drive zero backlash rotary table technology
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6/11/2009
Hardinge direct-drive zero backlash rotary table technology
6/11/2009
Provided By
Hardinge Workholding Division
Are you in the market for 4th axis machining in the ±3 arc-sec accuracy and ±2 arc-sec repeatability class? Are you interested in further reducing your cycle time?
What is direct-drive rotary technology?
A direct-drive rotary table consists of a housing, bearings, encoder and spindle with a high-energy rare-earth permanent magnet DC torque motor rotor wrapped around the spindle. The encoder is mounted directly to the spindle to provide position feedback. Hardinge systems provide ±.077 arc-sec resolution for super-precision positioning and repeatability.
System compliance, typically found in a gear-driven system, is negligible since there are no compliant couplings between the motor and the load. Since there are no gears between the motor and the load, there is no backlash. With the absence of backlash, bi-directional movement can be made without the need to compensate for backlash error. Very high accelerations and positioning speeds are demonstrated on Hardinge models.
Another advantage of direct-drive tables is that if a position move is made with the intent of cutting while stationary, it may not be necessary to clamp the spindle. If the cutting forces to be applied are within the torque available from the motor, the servo will hold position with plenty of stiffness to permit the cut since, as previously mentioned, there is negligible compliance in the direct-drive system. With the direct drive system, after the cut, since no clamp was applied, there is no time delay to wait for the clamp to release, so movement to the next position will be faster.
Why has Hardinge taken advantage of direct-drive technology?
The milling machines available on the market today generally have very fast axis travels as machine builders have attempted to reduce the time a machine is not in the cut and to increase the amount of material removed. If the machine axes travels are faster than the positioning speeds available from the rotary unit, the machine will often be waiting for the unit to position. The faster the rotary unit can move, from one position to another, the less time the machine is waiting to cut and the faster the cycle time. The direct drive rotary technology provides speeds up to 4,500 degrees per second that will take advantage of the faster axis travels, but it also offers the ability to do complex bi-directional machining at rates faster than can typically be done on geared systems. Hardinge rotary systems are available for use on Bridgeport and most other brands of machining centers and can take advantage of ?look-ahead? programming when integrated as 4th-axis to the machine.
The direct-drive technology may not be the answer for all applications, of course, but when it fits the application, it will produce outstanding results for a user and will enable the user to stay on the cutting edge of productivity. For more information call 800-510-3161, email info@hardingetooling.com or visit www.hardingetooling.com.
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Replacing collet pads is faster than replacing the solid collet
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6/11/2009
Replacing collet pads is faster than replacing the solid collet
6/11/2009
Provided By
Hardinge Workholding Division
Master collets and pads can save time and money. Hardinge, the inventor of the S-pad concept, has a dedicated S-pad manufacturing cell enabling them to maintain stock availability on more than 1000 styles and sizes of pads. The style-S master collet, although originally designed for multi-spindle automatic screw machines, has many benefits to the CNC lathe operator. The collet pads can be changed much quicker than a standard collet, the cost is less and the pads require much less storage space. Standard pads are hardened and ground for a long life, while soft and semi-hard emergency pads are popular for boring to size on the machine for shorter runs and secondary work.
Hardinge?s patented style-S pads can be changed without removing the master collet from the spindle, thus reducing changeover time. For example, on an eight-spindle automatic, all the pads can be changed in 15-30 minutes as compared to 2-3 hours that it would take to change the solid collets. Hardinge?s dovetail anchor design securely holds the pad in place when the bar is closed and it cannot be dislodged. No other front-loading pad can make this claim. The Hardinge design eliminates sets screws or clamps that could wear or break, and there is never any pressure on the clamp. There are no holes in the OD of the master collet, or on the ID of the pads, resulting in maximum bearing on the workpiece and the spindle collet seat.
Hardinge provides stock delivery of most popular sizes, and quick turnaround for decimal sizes and specials. Style-S pads are available in S10, S12, S15, S16, S20, S22, S26, S30, S35, S40 and S50 sizes to fit Hardinge style-S master collets used in screw machines, CNC lathes and Hardinge collet chucks. Pads are available in round, hexagon and square with smooth or serrated order holes, and with special shapes. For more information on master collets and pads contact Hardinge Inc. at 800-843-8801, or order online at www.shophrdinge.com.com
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Hardinge Workholding Teams up with Monogram Aerospace Fasteners to Maintain Part Quality and Concentricity
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6/11/2009
Hardinge Workholding Teams up with Monogram Aerospace Fasteners to Maintain Part Quality and Concentricity
6/11/2009
Provided By
Hardinge Workholding Division
Monogram Aerospace Fasteners, located in Los Angeles, CA, is a recognized leader in blind bolt technology in the aerospace industry. Blind fasteners (installed from one side of the structure) are an essential element of aircraft assembly as many fastening requirements present only one-sided accessibility, which precludes the use of conventional nut and bolt fastening.
Monogram?s Composi-Lok II blind bolt fastener is used to impart high clamping loads in composite airframe components, typically control surfaces such as flaps and ailerons, as well as metallic structure. The Composi-Lok II blind bolt overcomes damage to the composite structure by providing a large blind side upset, which allows the distribution of high bearing loads over a large area. The large blind side ?footprint? permits the fastener to exert very high clamp-up loads to the structure without damage to the composite. A patented locking feature insures structural integrity under severe vibration. Used on both military and commercial aircraft, the Composi-Lok II is approved on over 75 programs worldwide including today?s most sophisticated aircraft designs.
For their larger diameter fasteners Monogram uses a Hardinge custom-manufactured collet to control part quality and concentricity. The collet is hardened and ground and requires a quick open with a wide spread to go over the head of the nut (fastener body) and grip on the shaft beyond. Hardinge calls this style an ?over-the-shoulder? collet. For added flexibility, this collet is designed with six slots incorporating an oval relief at each slot near the back bearing. The relief takes the stress of the wide spread and helps to maintain roundness at the back (bearing) of the collet. This particular collet has two head angles to further allow maximum spread of the six collet leaves. The back drill area shown in the illustration accommodates the head of the nut.
Monogram turned to Hardinge for Hardinge?s reputation of quality and concentricity, as well as their cost advantage, according to Jeff Henry, VP of manufacturing at Monogram Aerospace Fasteners. ?We?re drilling into some pretty hard material, cutting off to length, nosing the taper angle and tapping the fastener body using this collet, says Jeff, and we?re getting better than required results.?
Hardinge is no stranger to the aerospace industry, having supplied precision CNC lathes and thousands of workholding solutions for commercial aircraft manufacturing as well as the National Defense program. Hardinge Workholding Division offers balanced CNC toolholders, standard off-the-shelf collets, step chucks, pads and feed fingers and custom-made collets and fixturing. Hardinge manufactures to rigid specifications including material, heat treatment and accuracy and is pre-approved as a government vendor.
For more information contact Hardinge Inc. at 800-843-8801 or Monogram Aerospace Fasteners at 323-722-4760.
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ER-style Tool Holding System for Bridgeport and other Knee Mills
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6/11/2009
ER-style Tool Holding System for Bridgeport and other Knee Mills
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge offers R8, ER-style collet holders for use on Bridgeport and other knee-mills. Holders are stocked in three sizes to hold ER-style toolholder collets to grip drills, taps, reamers, end mills, boring bars and special round shank end-working tools. One holder will accommodate a range of ER-style collets for a fast tool-to-tool change. The maximum round tool capacities are 3/8? (ER16), 25/32? (ER32), and 1? (ER40).
Hardinge ER-style toolholder collets are of a multi-slot design to provide maximum gripping force for efficient ?push-back? control. This control helps prolong tool life, which in turn reduces machine downtime to produce more parts per hour. All locating surfaces are precision ground to assure extremely close tolerances. The manufacturing process ensures that each collet will have a TIR (total indicator reading) of .0005? or less.
Hardinge Inc. has been manufacturing Bridgeport knee mills for the U.S. market since their alliance with Bridgeport International in November 2002. ?Hardinge will continue to develop workholding enhancements to fulfill the changing needs of the material-cutting industry?, states Tom Mitchell, General Manager, Hardinge Workholding Division. ?The Bridgeport knee mill sits side by side with the Hardinge manual lathe in job shops across the continent. We offer full support for these and other brand machines that make up our machine tool heritage. Hardinge provides collets, feed fingers, pads and toolholders for ALL brands of lathes, mills and grinding machines, regardless of age.?
Hardinge also manufactures standard R8 collets incorporating a unique design concept to reduce downtime. The patented ?one-piece? construction eliminates breakage commonly associated with other brand R8 collets that have a two-piece design with a separate bushing. In the two-piece design the bushing often breaks off in the spindle and results in the costly replacement of the spindle drawbar as well as the collet. The Hardinge one-piece design has proven to be a productive and economic replacement for shops currently using other brand R8 collets. 800-843-8801, www.shophardinge.com
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Expanding Collets offer Solutions to Difficult Machining Problems
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6/11/2009
Expanding Collets offer Solutions to Difficult Machining Problems
6/11/2009
Provided By
Hardinge Workholding Division
Expanding collets and between center arbors (mandrels) grip the internal diameter of a part for turning, milling, grinding, assembly, inspection and automation applications. When the OD of the part is hard to grip, or cannot be gripped, internal gripping may be your answer if there is an internal diameter in the 1/8? to 4? (3.175 to 101.6mm) range.
During chucking operations parts can be located against the face of the arbor or against a machineable workstop. This provides exact part length control as well as improved part consistency. The expanding collet draws the part firmly against the stop producing an extremely stable part location. Longer parts can be easily machined due to this added stability. The results are heavier cuts, better surface finishes and closer tolerances when using a workstop. Workstops may not be necessary if you are only machining the OD of the part. Because the part is pulled back against the workstop, short grip lengths can be firmly held.
Common ID gripping solutions include:
? Parts that need to be machined on multiple surfaces which would otherwise require multiple operations
? Thin-wall parts that would crush or distort with OD gripping
? Parts with OD threading that would be damaged with OD gripping
? Parts too large to grip on the OD
? Parts with an odd-shape that would be costly to manufacture a custom fixture or collet for
? Multiple parts loaded in pneumatic or hydraulic fixtures
? Pickoff collets for sub-spindles
? Short parts with limited gripping surface
? Gripping parts in a rotary indexing system for part positioning
? Grinding machine spindle workhead applications both direct-mount and collet style
? Between center grinding applications
? Assembly processes
? Grippers for automation
? Inspection applications in which there is an internal datum requirement
Hardinge manufactures Sure-Grip Expanding Collet Systems (patented) with interchangeable collet heads that have an under-over capacity of -.001? to +.015? (.025mm to.38mm) from its specified size to accommodate a range of part diameters. A double-angle design assures true parallel gripping with maximum grip force. Parallel gripping means that the collet expands equally the entire length of the collet rather than just at one end of the collet for maximum bearing contact against the part. This results in greater stability and better part accuracy. Parts are instantly centered and located without adjustment. Higher rpm and greater feed rates give you more parts per hour. A built-in safety stop will prevent the collet from over-expanding. Machines with ANSI type-A spindles and machines with collet-ready spindles or collet adapters can use the Hardinge Sure-Grip Expanding Collet Systems. Order Hardinge workholding products online at shophardinge.com, or phone 800-843-8801.
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Force-Limiting Step Chuck takes the headache out of thin-wall turning
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6/11/2009
Force-Limiting Step Chuck takes the headache out of thin-wall turning
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge has engineered ?force control? into 16C and 20C step chucks to prevent crushing or distorting thin-wall parts during turning and grinding operations. The concept incorporates a unique spring-loaded design as the primary closing mechanism. The lathe closer will bottom out before the spring system reaches its solid height. The Hardinge Force-Limiting Step Chuck?s features and benefits makes it an ideal replacement for the standard power chuck when turning large or small diameter, delicate or thin-wall parts. The lathe operator will have better control over the cutting process while reducing scrap and maintaining part specifications.
Excessive grip force on a delicate or thin-wall part can easily distort or crush a part so that when it is released it will not hold the concentricity. Similarly, you can not hold an out of round shape and maintain that shape when an excessive gripping force is applied. The force-limiting step chuck assembly adjusts the grip while eliminating the nuisance of manually tweaking your draw bar force. The actuation of the system is force independent from the machine draw bar. You can operate at normal pressure, eliminating any loss of closing cycle time associated with a low pressure setting. Hardinge has identified and has engineered solutions for multiple force levels. Each application will be tested for proper use.
Not only is there concern for maintaining OD and ID concentricity, but also maintaining a straight, non-distorted face cut for example on a thin-wall aluminum part. Additionally, accurate bore tapers can be achieved.
The standard power chuck just doesn?t cut it for delicate or thin-wall turning. The Hardinge Force-Limiting Step Chuck offers many advantages over standard and specialized power jaw chucks. Concentricity will be maintained because the proper grip force is predetermined and applied to the process automatically. The standard power chuck grip force is controlled by manually adjusting the draw bar force and tweaking it until you have a satisfactory workpiece, but you?re likely to increase setup time and create scrap along the way. The Force-Limiting Step Chuck weighs less than a power chuck and does not require a hoist to mount it. It mounts directly in the Hardinge spindle with minimal overhang from the spindle bearings, therefore transferring spindle accuracy direct to the workpiece. There is less weight on the spindle as compared to a power jaw chuck so that faster rotating speeds can be achieved. The smaller outside diameter provides less inertia and lower mass providing shorter acceleration and deceleration times, at the same time allowing more tool clearance. There is less setup involved because you don?t have to bore soft jaws or position hard jaws as you do on a power chuck.
Similarly, the Force-Limiting Step Chuck can be used for small diameter parts, such as a connector, to avoid crushing and distortion. Custom shapes can be engineered for holding non-round parts.
Hardinge?s Force-Limiting Step Chucks are hardened and ground and ordered to size according to each individual application. Threads are heat-treated and the body is spring-tempered to assure accuracy and durability for long life. Currently the force-limiting step chucks are used in Hardinge CNC lathes with a draw bar stroke of 1/2 inch or less, available in 16C and 20C sizes. Applications include gripping thin-wall tubing, pipe, castings, housings, and soft or delicate materials that cannot withstand standard chucking methods. Phone 800-843-8801.
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A five-minute Eye Opener to Alternate Gripping Methods for Grinding Machines
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6/11/2009
A five-minute Eye Opener to Alternate Gripping Methods for Grinding Machines
6/11/2009
Provided By
Hardinge Workholding Division
Are you utilizing your grinding machine to its full job capacity? Many machine operators don?t think past centers, arbors, fixtures and magnetic chucks. Many shops are still doing second operation work when they could be set up to finish parts complete with an alternate workholding method. Here are several suggestions for additional or improved gripping solutions passed along by the workholding experts in Elmira, New York.
Morse taper, B&S taper and Jarno taper grinding machines can be adapted to use collets, step chucks, pin step chucks, Sure-Grip expanding collets, Dead-Length collets, Dead-Length work stops, collet chucks, manual chucks, magnetic chucks, face plates and fixture plates. Hardinge manufactures custom collet sleeves or adapters to fit in the spindle of the workhead to accept a useful variety of gripping products, even for the older grinding machines that are as reliable now as they were 50 years ago!
Kellenberger, a Hardinge Company, incorporates a combination A2-5 / MT5 workhead spindle nose in their line of grinding machines to take advantage of using 5C spindle tooling, according to Jeff Hilliard, Sales Manager for the Hardinge Grinding Group. ?The optional adapter allows the customer access to an array of stock 5C tooling for increased gripping options.? 5C Spindle tooling includes collets, step chucks, emergency collets, fixtures, face plates and the Sure-Grip Expanding Collet systems.
The Hardinge Sure-Grip Expanding Collet System is extremely popular for OD grinding. The Sure-Grip expanding collet performs true parallel gripping with instant centering of the workpiece. Stock products are available to accommodate work from 1/8 inch to 4 inches in diameter. It is also possible to access the full grinding length of the workpiece unlike a fixture or chuck setup. The hardened and ground expanding collet head can be reground in place to the desired size for the best possible concentricity scenario to achieve zero TIR. Many jobs later, it can then be reground or recycled to accept a smaller ID workpiece for a different job setup. Different size expanding collet heads fit on the same collet body, and are quick change from the front without removing the collet body. The expanding collet has many advantages over a manual chuck or fixture setup. The setup time is decreased because of instant centering without individual clamping, the unit is smaller, lighter and mounts faster, and you can achieve the highest accuracy possible. Collets are available in 1/64? increments and a full range of metric sizes. The range of each collet is +.015? to -.001? (+.38mm to -.025mm) from its specified size. Hardinge Sure-Grip expanding arbors can be used between centers instead of tapered arbors to achieve a grip with more contact area. Load a part on a second, spare arbor for quicker part changeover.
Step chucks are handy devices for holding parts larger than the one-inch diameter 5C capacity. Job shops can purchase emergency step chucks and grind them to size, matching the spindle bearings of the machine to achieve the best TIR possible. Hardened and ground steel step chucks are ordered to size for specific applications. Similar to expanding collets, they can also be recycled for another job. When comparing step chucks to manual chucks, they offer faster part changeover considering the time involved in opening and closing a manual chuck with a wrench. A step chuck can be more economical given that a set of jaws typically costs more than an emergency step chuck. Repeatability and part roundness are more accurate on the step chuck. Custom pin step chucks have steel pins in the collet closer that are ground to a desired stop location for part length control. Custom extra-depth step chucks are used to ?swallow? a longer workpiece for precision ID grinding purposes providing a larger gripping area. This product is commonly used when the 3 to 1 ratio is exceeded. For example if you have a part that is 1 inch in diameter and it exceeds 3 inches in length you would introduce chatter and runout using traditional gripping methods. If your part exceeds the 3 to 1 ratio, use an extra-depth step chuck to hold the part more rigidly.
Custom spindle fixtures are smart solutions for high production facilities running the same part around the clock. The fixture accepts the part in a fixed loading position, eliminating manual positioning and setup time that would occur using a magnetic chuck or jaw chuck. In high production situations, the accumulated time saved during loading of parts will substantially increase the parts output per hour. For small runs and job shop work, inexpensive blank fixture plates are available from 3- to 12-inch diameters. The clamping method is designed, machined and balanced by the job shop and is commonly used for odd shapes. Universal faceplates are perfect for holding non-ferrous materials that cannot be held with a magnetic chuck. Small angle plates position in four channels for clamping materials such as plastic, glass, ceramic, carbide and aluminum.
Hardinge provides workholding products for ID, OD, Universal, tool room, cutter & drill and jig grinding machines. Many products are custom manufactured for a specific application. Wheelhead collets and adapters, workhead spindle sleeve adapters, double-head, high-speed grinding, ID grip expanding, drill, and lens grinding collets are examples of products that Hardinge has designed and manufactured for the grinding industry. Hardinge stocks a complete line of Sure-Grip expanding collet systems and the largest inventory of 5C spindle tooling in the world. The Hardinge 5C indexing system could be used on Hauser Jig Grinders for automated part positioning, as well as pneumatic collet block arrangements for high production work. Hardinge also stocks face & fixture plates, centers, grinding arbors, driving dogs and drivers. For additional information, contact Hardinge Inc. at 800-843-8801.
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Hardinge 16C and 3J Rotary Table Indexers
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6/11/2009
Hardinge 16C and 3J Rotary Table Indexers
6/11/2009
Provided By
Hardinge Workholding Division
Hardinge introduces a revolutionary concept for large part positioning in the 16C and 3J rotary table indexers. Hardinge's world-renowned collet-ready A2-5 spindle is the heart of this indexing revolution. The same accuracy, precision and reliability built into the Hardinge lathe now extends to their large-capacity indexing/rotary table systems. A variety of standard 16C or 3J spindle tooling will mount directly in or on the high-precision spindle without the use of an adapter.
Hardinge adds the 16C and 3J indexing/rotary table system to their successful 5C product offering to provide rapid part(s) positioning as well as linear, arc and spiral milling for different part sizes, shapes and materials. Common spindle tooling can be shared from indexer to lathe. Collets, expanding collets, step chucks and 3-jaw power chucks will automatically center the part and afford superior grip force for heavy cutting. Compare to your existing clamping method ? improve accuracy and precision while eliminating lengthy set up! The collet spindle design means that gripping is in the spindle, closest to the spindle bearings, unlike surface-mounted adapters used on traditional rotary tables.
A 6? (152.4mm) centerline to base is standard, with a 1.625? (41.27mm) 16C, or a 1.750? (44.45mm) 3J through-hole capacity for the ability to swallow longer parts. A pneumatic collet closer provides 4560-pound (2068kg) draw bar pull. A .625? (15.87mm) stroke allows the use of ?power? chucks. Removable eyehooks locate on the top or on the face of the indexing/rotary table system for installation to a mill table or assembly operation. The compact brushless motor can be ordered for either left- or right-hand setup. The spindle has a true rolling element design with dual angular contact spindle bearings to accommodate heavy part weights and high tailstock thrust. Speeds can be reached up to 50 RPM or 300-degrees per second.
The 16C model will accept round stock capacities up to 1-5/8? (41.27mm), hex capacities up to 1-13/32? (35.71mm) and square capacities up to 1-9/64? (28.97mm) using standard collets. The 3J model will accept capacities of up to 1-3/4? (44.45mm), 1-17/32? (38.89mm) and 1-1/4? (31.75mm) respectively. Hardinge manufactures and stocks a large array of spindle tooling to hold larger parts: step chucks for up to 6? (152.4mm) outside diameters or custom shapes; Sure-Grip® expanding collets for up to 4? (101.6mm) internal diameter gripping; 3-jaw power chucks and 10? fixture plates. Emergency collets and step chucks can be bored-to-size on location for JIT machining. Tailstocks will provide support for parts that exceed the 3:1 length-to-diameter ratio.
Hardinge rotary table indexers are compatible with most brands of vertical machining centers and knee mills. Hardinge?s unique servo control will store up to 50 programs with up to 1000 steps in each program. The multiple line display means you?ll be viewing all critical data, reduce scrolling and spend less time referring to the operator?s manual. Infrared data transmission capabilities allow upload and download of programs from a pocket PC. The 16C and 3J rotary table indexer can be used with a Hardinge servo control actuated by ?M? functions, interfaced using an RS-232 interface cable, or as a true 4th-axis of most brand VMCs including Hardinge Bridgeport machining centers or knee mills.
Join the indexing revolution ? experience the collet advantage. For more information call 800-510-3161 or visit www.shophardinge.com.
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Hardinge rotary trunnions offer multiple part fixturing
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6/11/2009
Hardinge rotary trunnions offer multiple part fixturing
6/11/2009
Provided By
Hardinge Workholding Division
Plate and Cube rotary trunnion systems, manufactured by Hardinge (Elmira, New York), offer multiple part positioning. Load up the trunnion with collet blocks, configure with clamping devices, or customize a window box fixture allowing 4-sided part machining to increase your parts production. Maximize productivity by loading up a second plate to have ready to mount when the first set up is finished. In this fashion, multiple parts can be machined efficiently with the same tool before going to the next tool.
Plates are made of blackened steel and the cube is solid aluminum for ease of milling, drilling and slotting by the customer to meet individual set up requirements. The combination of a rugged bearing spindle indexer and a permanent robust bearing pillow block assure rigid, accurate positioning. Hardinge 5C, 16C and 3J Rotary Systems are fully automatic, programmable rotary positioning devices that can be connected to a wide variety of host machines.
The cube trunnion provides four 18" mounting surfaces and can easily be configured for highly productive 2D work, taking advantage of the fast 300 degree-per-second speed of the indexer, with full revolution available.
Plate Trunnions have an adjustable, multi-position centerline to accommodate various part heights on both surfaces of the plate. For more information call 800-510-3161, or visit www.shophardinge.com.
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Collets, Feed Fingers and Pads
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11/8/2007
Collets, Feed Fingers and Pads
11/8/2007
Provided By
Hardinge Workholding Division
Hardinge is the world’s largest manufacturer of spindle tooling. With over a century of experience, we are your trusted partner for all workholding applications. Hardinge collets are renowned for their accuracy and durability with the best total indicator reading (TIR) in the industry. Let Hardinge solve your workholding problems such as hard-to-grip shapes and surfaces, part length control, thin-wall turning, etc.
Hardinge manufactures and stocks collets for ALL brands of lathes, automatic screw machines, rotary transfer machines and turret lathes in various sizes and shapes. We also specialize in custom manufacturing.
Order Hardinge collets online at www.hardingetooling.com
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Custom Workholding Manufacturing
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11/8/2007
Custom Workholding Manufacturing
11/8/2007
Provided By
Hardinge Workholding Division
Special collets and workholding devices are manufactured to rigid specifications, including material, heat treat and machined accuracy. Hardinge will work with you for the fastest possible delivery time to meet your deadline. Quite often a stock item can be altered to meet your requirements.
Hardinge specializes in solutions for extruded stock, non-round parts, eccentric, off-center, stepped and other hard-to-grip parts. Hardinge will work closely with you to solve your individual needs while working within your parameters. Their Design and Application Engineers have over a century of combined experience.
Quite often it is necessary to hold a soft or brittle workpiece, a part that cannot be marked or scratched, or a thin-walled part. Hardinge can provide a gripping solution for all types of workpiece materials. Special Collets are available to hold glass rods, optical lenses, pill capsules, plastics and wood. Hardinge has experience with all types of materials including brass and aluminum extrusions, castings and die castings. Fax your requirements to 607-734-3886.
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Gear-Driven Rotary Systems and Trunnions
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11/8/2007
Gear-Driven Rotary Systems and Trunnions
11/8/2007
Provided By
Hardinge Workholding Division
Hardinge manufactures a family of gear-driven rotary products to increase your productivity. Choose from 5C, 16C and 3J systems to accommodate a range of part sizes. The enhanced entry-level 5C-2 boasts a dual-bearing spindle for heavier radial and axial loads, more spindle clearance and improved accuracy. All Hardinge rotary systems accept collets, step chucks, expanding collets, jaw chucks and slotted face plates without the use of an adapter. Trunnion systems allow multiple part fixturing for increased productivity.
Buy Rotary Systems, trunnions and workholding products online at www.hardingetooling.com
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Swiss-type Collets, Guide Bushings and Bar Loader Collets
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11/8/2007
Swiss-type Collets, Guide Bushings and Bar Loader Collets
11/8/2007
Provided By
Hardinge Workholding Division
Hardinge Swiss-type Collets are ground to precise size and TIR to meet precision machining requirements with a standard accuracy that rivals the industry! Every collet and guide bushing is inspected on a Hardinge Super-Precision (.000015" TIR) headstock before reaching the stockroom.
Hardinge manufactures to Swiss quality for all brands of Swiss-style machines and cam-operated lathes. Extended-Nose Collets feature added nose length, flat or tapered, for doing pick-off work or to compensate for tooling interference. An Emergency Collet can be machined to the desired bore size. Emergencies are also available in extended-nose for added nose length.
Hardinge round Swiss Guide Bushings are carbide-lined to keep the stock clean and unmarked. Specials are available in hardened steel, Meehanite lining, angular & zig-zag slotted and extruded shapes. Escomatic counter collets and guide bushings can be manufactured to order. Hardinge also carries bar loader collets.
Buy Swiss-type collets, guide bushings and bar loader collets online at www.hardingetooling.com
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Collet Blocks
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11/8/2007
Collet Blocks
11/8/2007
Provided By
Hardinge Workholding Division
Hardinge Collet Blocks grip round, hex, square or odd-shaped parts and can be used horizontally or vertically on mill tables, flat or angled fixture plates, tombstones or rotary trunnions. Sizes are available from the 1C micro medical machining industry up to the 35J mid-range automotive and aerospace industries. Modular collets blocks are compact with a low profile for increased axis travel and for maximum layout of the workspace. A collet can provide certain advantages over a jaw chuck, vise and other clamping methods.
There are some advantages of using Collet Blocks instead of a standard vise or 3-jaw chuck. A collet automatically centers the workpiece for reduced setup time. Centers remain fixed when the fixture is removed from the machine table. A collet provides equal gripping pressure around the circumference of the part unlike a standard vise or a 3-point contact jaw chuck. Thin-wall parts or delicate materials may crush or distort in a standard vise or jaw chuck. Collets ordered with serrations can add additional gripping power to prevent push-back and radial slipping. Extended-nose collets can provide additional tool clearance. Some collet blocks accept expanding collets to grip a part at the internal diameter. Collet blocks are modular for arranging on a pallet for multiple part processing and quick pallet changeover.
Collet blocks and rotary trunnions can be ordered online at www.hardingetooling.com.
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Tool Holders, Toolholder Collets and Bushings
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11/8/2007
Tool Holders, Toolholder Collets and Bushings
11/8/2007
Provided By
Hardinge Workholding Division
Hardinge offers same day shipping of many styles of tool holders, toolholder collets and bushings for most brands of CNC and manual lathes and mills.
ER-Style Collet Tool holders, Straight-Shank Tool holders and Double-Angle Collet Tool holders are available in a wide variety of lengths and diameters to meet the needs of the machine tool industry.
Toolholder Collets are available in Standard ER-Style, ERNC-Style, ERTCSP Tap Collets, ERQC Quick-Change Solid Floating Tap Collets, ERTC Solid Floating Tap Collets, TG, HDO (RDO), HF (AF), DA-Style, Cincinnati Monoset, and 1C Collets.
Hardinge HD-Style Bushings are hardened and ground inside and out. This hardness and resiliency make the Hardinge bushings long lasting and extremely accurate. Three bushing styles are available—HDB split, HDC solid and HDZ solid preset.
Quick-Change Tap Collets are used for mounting into Bilz-style and other popular tap holders including taper-flange milling machine tap holders. The quick-change feature allows changing the tap without removing the collet from its holder to ensure precise length control from one tap to another of the same length.
CNC tooling is available in CAT-V or BT style tool holding systems for CNC mills. The AT3 shank taper accuracy exceeds ANSI standards by 35%. Solid-style and collet-style holders are available.
Order Hardinge tool holders, toolholder collets and bushings online at www.hardingetooling.com