STRONGSVILLE, OHIO — Van Dorn Demag Corp. and Rockwell Automation group are touting their technology partnership that resulted in a Van Dorn Demag injection press introduced at NPE 1997 with a Reliance Electric electric screw drive.
Cleveland-based Reliance is a unit of Rockwell Automation. Van Dorn Demag, based in Strongsville, showed an HTE press with a servo electric drive and a variable-speed pump drive, both made by Reliance.
The machinery company claims the HTE presses are 60 percent more energy efficient than earlier models.
The first phase of the partnership uses Reliance GV3000 alternating-current drives and RPM AC motors. A compact power structure in the drive makes the drive 30 percent smaller and reduces noise by 7 percent.
Future improvements will allow the drives to operate without using a sensor mounted on the motor.
A Reliance Electric consultant will work at Van Dorn Demag to help the two companies communicate.
Allen-Bradley Co. Inc., which makes controllers for plastics machines, is another unit of Rockwell Automation.
Tel. Van Dorn Demag at (216) 238-8960; fax (216) 238-3047.