This is the Royal Master Grinders Model TG-12×4 Centerless Grinder with our standard dovetail and gib Ram Bed system. We are utilizing the standard mechanical lead screw with four handled sizing dial for position movement along with a dial indicator. This is our lowest cost machine option and yet it will hold a .0001″ diameter tolerance.
Here at the IMTS Show, this machine is thrufeed grinding the major diameter of an eight inch long part. The part is hand loaded onto the long guide and work rest blade. The part travels through the wheels and out onto the exit side still supported by the long guide and work rest blade. As the next part pushes the previous part beyond the guide and blade, the parts cascade down an extended vee support and onto an exit conveyor. The exit conveyor can be configured to transfer or accumulate the finish ground parts.
There have been many updates to the machine base and the controls. All machines come standard with a Servo Drive for the Regulating Wheel. The Regulating Wheel speed is controlled by a touch screen operator interface. This machine has Air Dressers on both the Work and the Regulating Wheels. A Dresser upgrade to motor driven cross feed is added to this machine package. With this motor cross feed, there are no hydraulics on the machine and speed setting of the diamond traverse is digital and precise. This dress feature uses templates for tracing the profile.
The first thing you notice is the “CLEAN” look to the machine base. No gauges, no hand wheels, no hang on boxes. Everything is “put away” where it belongs. Enclosures contain the non-essentials. The machine base and the machine bed are both larger to provide a stable platform for the grinding and to hold a hand micrometer. Coolant containment is enhanced by the broader platform and deeper troughways. Fork lift access slots make machine lifting much easier.
The “Basic Thrufeed Machine” is cost efficient to purchase, capable of fast set-ups and simplified changeovers. This machine can grind a wide variety of materials with the change of a grinding wheel. Super-abrasive wheels like CBN or diamond wheels are used for Carbide, Ceramic or other hard materials. Close tolerance work is accomplished in either high volume or low quantity jobs.
For more information on this product and for an evaluation of how it might benefit your grind application, contact Royal Master Grinders at www.royalmaster.com. See us at Booth 6646 in Chicago.