E34HRHA-LNK-NS-00 Kollmorgen
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The Kollmorgen E34HRHA-LNK-NS-00 hybrid stepper motor is part of the E Hybrid Stepper Motors series and features a NEMA 34 frame size with heavy duty mounting. It provides a holding torque of 1250 oz-in, rated current per phase of 8.1 amps, and operates at a step angle of 1.8 degrees with 200 steps per revolution. The motor uses SIGMAX construction and has a smooth shaft with a weight of 9.7 pounds.
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Product Description:
The E34HRHA-LNK-NS-00 is a hybrid stepper motor produced by Kollmorgen for the E Hybrid Stepper Motors series. It combines a NEMA 34 frame with SIGMAX construction to raise flux density, delivering high torque in compact automation axes. The unit serves indexing tables, gantry drives, and other positioning tasks where open-loop precision is acceptable. A heavy-duty NEMA mounting pattern allows direct replacement of legacy motors, while a regular lead-wire connection with four parallel leads simplifies cabling to microstepping drives. The design employs four magnetic stacks to increase detent torque without increasing the motor length.
The motor develops a holding torque of 1250 oz-in when each phase is supplied with a rated current of 8.1 A. Copper loss is limited by a low phase resistance of 0.29 ohms, while the phase inductance of 3.6 mH controls the rate of current change under chopper control. A rotor inertia of 0.035 oz-in-s² supports rapid acceleration without imposing excessive load on the drive. Position resolution is set at 200 full steps per revolution, and the manufacturing tolerance keeps step accuracy within ±1.5%. Thermal management is aided by a winding-to-case thermal resistance of 1.7 °C/W. Class B insulation permits winding temperatures up to 130 °C. The insulation resistance is 100 megohms, and the dielectric rating is 340 VDC.
The motor can withstand an axial thrust of up to 180 lb and a radial pull of up to 96 lb, making it suitable for belt drives or lead-screw support bearings. Each revolution is divided into full steps of 1.8 degrees, and the smooth shaft simplifies connection to clamping hubs when a keyway is unnecessary. The motor weighs 9.7 lb, which helps with gantry payload calculations. It can operate at ambient temperatures from -20 °C to +40 °C. The heavy-duty mounting arrangement supports secure attachment to compatible machine frames, while the compact housing limits the space required along the axis.
