Contact Information
Mailing Address:
1500 Michael Dr.
Wood Dale,
IL
60191
A Special Message from
Roku-Roku
Roku-Roku Provides High Speed and Hard Milling Solutions
|
|
|
Roku-Roku's complete line of vertical machining centers offers high-speed and hard-milling solutions for both steel and graphite applications. Roku-Roku has set the standard for machine quality and rigidity through its one-piece, box-style cast base, mono-block and crossbeam support.
Roku-Roku vertical machining centers are handcrafted and solidly built to jig-borer standards of quality and accuracy. The company hand-scrapes mating surfaces to eliminate vibration and computer-designs its machine bases with a three-point leveling system for maximum rigidity.
Hybrid Machines. To enable high-speed precision machining, Roku-Roku combined its graphite machining technology with its steel technology to create the industry's leading hybrid machine, the HC-658.
Roku-Roku machines are designed with double-covered ball screws and guideways to combat the damaging effects of graphite dust. Since this style of machine was introduced in 1988, not one ball screw has had to be replaced in a Roku-Roku machine, a testament to the success of Roku-Roku's innovative design.
Coupled with the Fanuc 31i-A5 controller and Roku-Roku's Super PC III, Roku-Roku machining centers optimize velocity and acceleration/deceleration with a super high-speed processor and AI Contour Control II. Their combination of high-speed calculation, smooth action linear guides and read-ahead control minimizes geometric errors during high-speed contouring of continuous, small-motion commands, providing a smoother finish than other machines can.
The Super PC III can be set to one of three different modes -- High Precision, Standard or High Speed -- to meet any shop's machining requirements. The Roku-Roku line of equipment also features Fanuc's Digital Intelligent Servo System with five-place decimal input and high-resolution glass scale feedback. This combination results in unsurpassed speed and accuracy -- even in complex, three-dimensional contours comprising short consecutive line segments or arcs.
Heavy Bridge. Roku-Roku's bridges are constructed of Meehanite GC in both the base and bridge casting material. This material provides excellent shock and vibration dampening as well as minimal thermal distortion in normal working environments. The machine's bridge construction reduces the distance from spindle center to the Z-axis guideways, minimizing the opportunity for thermal distortion and simultaneously producing extreme rigidity.
High-Performance Spindles. Roku-Roku designs their own spindles, which can reach 250,000 RPM. Feed rates and speeds ultimately will be determined by the types of cutters used and the surface feet per minute (SFM) the tools can handle without burning up. Roku-Roku spindles use the latest angular-contact ceramic bearing technology. This special, long-life spindle design uses two large bearings at the bottom and two large bearings at the top of the integral motor.
In the "dry" machines, the spindle has sealed, grease-lubricated spindle bearings, completely eliminating oil contamination of the graphite from dripping, mist-type lubrication. The "wet," or flood, machines use an oil mist-lubricated bearing system.
Both types of machines come standard with an oil chiller that maintains a ±1.0 degree F operating window. The surrounding jacket of oil stabilizes the spindle temperature. This process minimizes Y/Z-Axis thermal deformation commonly caused by high RPM and extended run times.
MC Machinery Systems, Inc. is the American importer and support network for the Roku-Roku line of high-speed vertical machining centers. For more information on Roku-Roku or any other products in the Mitsubishi Supply Chain (Mitsubishi EDM, Mitsubishi Laser, Mitsubishi Waterjet, Hole Popper, Roku-Roku, and Toyokoki Press contact MC Machinery Systems, Inc. at 1500 Michael Drive, Wood Dale, IL 60191, call 630-616-5920 or visit www.mitsubishi-world.com.