N32HCHJ-LEK-PG-01 Pacific Scientific
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The Pacific Scientific N32HCHJ-LEK-PG-01 stepper motor is part of the POWERPAC N Stepper Motors series and features a NEMA 34 heavy duty mounting with a 3.38 inch square frame. It delivers a holding torque of 8.6 Nm, has 200 full steps per revolution with a 1.8 degree step angle, and a step accuracy of ±3%. This standard construction motor includes a double ended shaft with a straight key, is 133 mm in length, and uses a 4 lead parallel configuration.
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Product Description:
The N32HCHJ-LEK-PG-01 is a stepper motor produced by Pacific Scientific for the POWERPAC N Stepper Motors series. In automated machinery, it converts incoming pulse trains into precise incremental rotation, delivering open-loop positioning for indexing tables, cutters, and small transfer axes. A double-ended shaft allows an encoder to be fitted when verification of motion is required, while the heavy-duty mounting flange lets the motor carry axial and radial loads without additional brackets. This shaft arrangement also provides access to the rear of the rotor without interfering with the primary mechanical connection at the driven end.
The frame follows the NEMA 34 sizing code, and its 3.38-inch square frame matches standard gearboxes and clamps. A laminated rotor and two-stack assembly produce a holding torque of 8.6 Nm, keeping loads stationary when the motor is energized. The phase coils are brought out as a four-lead parallel set to lower inductance and increase current capability. One revolution is divided into 200 full steps, providing a fundamental step increment of 1.8° for repeatable incremental motion without feedback. The motor uses standard construction and attaches with a heavy-duty NEMA mounting pattern that keeps the stator square to the driven equipment. Its open-loop design allows a compatible controller to command position through a calculated number of input pulses.
The overall housing length is 133 mm, so the unit fits installations where mounting depth is limited. The insulated windings tolerate up to 340 VDC and provide more than 100 megohms of resistance to ground, offering electrical isolation for use with medium-voltage drives. A System MS connector handles power terminations and provides a compact connection point for the motor leads. The straight keyed shaft provides positive engagement with a coupling, while a shaft seal protects the front bearing from dust ingress. Step position remains within ±3% of the nominal angle, supporting accurate movement across repeated indexing cycles. The motor can operate with compatible bipolar chopper amplifiers used on industrial positioning stages.
