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Electric press delivers servo-like performance in automated workcells

Schmidt Technology has introduced the ElectricPress 43, designed for integration into automated workcells. The all-electric, modular press works with the user’s control system and safety devices.

The press is driven by a DC servomotor coupled to a rack-and-pinion drive. A standard PLC and SCHMIDT® EP Assistant software are required to control the machine. Up to 14 user-defined NC sets (motion paths) can be loaded and stored inside the motor. These NC sets specify the ram end position, travel velocity, ramp acceleration/deceleration speeds, and the maximum allowable force. When establishing the NC sets, the user can choose either force or ram end position to end the pressing action, and the other acts as a limit.

Like a servo press, the electric machine provides true closed-loop positioning control for programmable stroke control while maintaining an accuracy of 0.002 in. Providing fully programmable force levels, it can generate a continuous load capacity of 560 lbs. and a peak load capacity of 900 lbs. with an accuracy of +/- 10 percent. In addition, the ram feed rate also is fully programmable, with speeds reaching 5.9 IPS.