Product Details：

KOLLMORGEN 6SM77S-3000 is a medium-large frame synchronous servo motor from the classic Seidel 6SM series, widely used on ENGEL injection molding machines and die-casting automation equipment. The S variant is equipped with resolver feedback instead of optical encoder, which has excellent resistance to vibration, high temperature and electromagnetic noise, making it suitable for harsh workshop environments filled with oil mist and hydraulic interference. Its rated speed is 3000 rpm, mainly used for heavy-duty injection axes, core pulling axes and large ejector axes of plastic molding equipment, delivering stable continuous torque under repeated cyclic load.

This servo motor transmits rotor angle and speed data to matched Kollmorgen SERVOSTAR servo drives via resolver signal to build a complete closed-loop motion control system. It adopts separate circular connectors for power cable and feedback cable to reduce signal crosstalk. The stator winding uses class F insulation material, and the motor housing reaches IP64 protection grade, blocking dust and oil mist from entering internal components. The rotor inertia is reasonably optimized to achieve smooth acceleration and deceleration, effectively reducing position overshoot during continuous molding cycles.

Engineers can tune speed loop gain, position loop gain and feedforward parameters through dedicated drive software according to different molding process requirements. Built-in PTC temperature sensor continuously monitors winding temperature. When overheating, overload or resolver signal interruption is detected, the servo drive will quickly cut off power output and trigger alarm to prevent mold collision and motor winding burnout. The reinforced mechanical structure can withstand long-term vibration generated by hydraulic pumps and valve switching.

This KOLLMORGEN 6SM77S-3000 servo motor has been discontinued by the original manufacturer. It is available in the industrial automation aftermarket as a tested replacement spare part for legacy ENGEL injection molding machines. Maintenance technicians can complete replacement safely after power cut, without modifying the original flange mounting dimension and drive control scheme.

It is a practical resolver-type heavy-duty servo spare part in automation spare parts market, providing reliable torque and position feedback for key motion axes of injection molding equipment.

Key specifications：KOLLMORGEN 6SM77S-3000 servo motor,3000rpm,resolver feedback,IP64,dual circular connectors,class F insulation. Operating temperature range: 0°C to +55°C. It supports winding resistance test, resolver signal inspection and load aging test before shipment.

This 6SM77S-3000 servo motor cooperates with Kollmorgen SERVOSTAR series drives, realizing stable closed-loop speed and position control for heavy-load injection molding automation axes.