Supertec's Mini Genie Cylindrical Grinder Capable of 600 rpm
Supertec Machinery’s Mini Genie cylindrical grinder is designed for shops with limited floor space.
Supertec Machinery’s Mini Genie cylindrical grinder is designed for shops with limited floor space, with a footprint of 78" × 78" (43 sq. ft.). The machine provides grinding diameter capacity of 9", a distance between centers of 8", and a work load capacity of 44 lbs between centers (11 lbs chucked). The wheelhead uses an NN contact taper needle roller bearing spindle with a 20" × 2" grinding wheel and 10-hp spindle motor, enabling greater stock removal rates. Featuring infinitely programmable speeds, the workhead can reach 600 rpm. The machine can grind materials such as cast iron, Inconel, carbide and chrome.
Equipped with a Mitsubishi M80 control and Supertec’s I-Grind conversational shopfloor language, the grinder is said to be easy to program. The graphic display screen allows the operator to review the part program prior to grinding and make any required adjustments. The Mitsubishi M80 (and optional FANUC Oi-TF) control can be interfaced to a variety of measurement systems such as touch probes and automatic sizing devices as well as robotic and gantry-style automatic loading systems.
The Mini Gene comes in two styles, a plunge model with the wheelhead set at 90 degrees and an anglehead model with the wheehead set at 20 degrees. The anglehead is well-suited for faster stock removal and a better surface finish on face and shoulder grinding applications, the company says.
A Heidenhain 0.000002"-resolution linear scale is used for improved accuracy and repeatability, enabling the achievement of 0.0001" or better tolerances, according to Supertec. Both machine axes use linear guideways for smoother more accurate movement.
Other standard features include a full enclosure, an infinitely variable workhead, a coolant system with paper filter and magnetic separator, and a taper-adjustable tailstock.
Roughing and finishing on a single machine, using a single setup, has appeal for most shops. The advantages in time savings and accuracy are obvious. Eliminating the transport of workpieces between machines, as well as the setup for those secondary operations, is a boon for throughput. Critical features that need to maintain dimensional relationships can be much more reliably produced if machined complete in one clamping.
No other process can do what creep-feed grinding can do. Recent tests show even more can be gained by optimizing every element of a creep-feed system.
If one must pick a manufacturing specialty, grinding carbide might not be the first choice because it’s perceived to be very difficult. RPM Carbide Die, however, has worked the material for nearly 40 years and, as specializing seems increasingly to be the order of the day, this northern Ohio shop is in a good position to thrive.