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K32HCHJ-LEK-PF-01 Pacific Scientific

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The Pacific Scientific K32HCHJ-LEK-PF-01 is a stepper motor from the K PowerPac Motors series featuring a 3.38 inch square NEMA 34 frame and a holding torque of 10.8 Nm. It is built with enhanced SIGMAX construction, has a 1000 LPR encoder, and includes a double ended shaft with a straight key and shaft seal. The motor is designed for a heavy duty NEMA mounting style and operates within a temperature range of -20°C to +40°C.

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Product Description:

The K32HCHJ-LEK-PF-01 is a stepper motor produced by Pacific Scientific for the K PowerPac Motors series. In automated machinery, it translates pulse trains from a drive into fixed-angle shaft increments, providing predictable positioning for indexing tables, carton erectors, and light gantry axes where closed-loop feedback is optional rather than mandatory. Its stepper design is well suited to applications that need repeatable indexing and stable holding torque without requiring continuous position correction.

With a holding capability of 10.8 Nm, the rotor can remain locked under load when motion is paused, which helps prevent back-driving on vertical or belt-driven stages. Each command advances the shaft by 1.8°, and the stated step accuracy supports repeatable 200-step revolutions without encoder correction. The NEMA 34 frame keeps the 3.38-inch square housing compatible with common heavy-duty NEMA mounts, while SIGMAX enhanced construction directs more magnetic flux through the laminated rotor for higher torque density. A body length of 133 mm corresponds to a two-stack core, which increases active magnetic length. The motor uses a 4-lead parallel winding arrangement that lowers phase resistance, so higher-current microstepping drives can maintain torque more effectively at speed. An insulation resistance of 100 MΩ and a straight-key shaft also support reliable installation in material conveyors, fixtures, and similar industrial equipment.

Power connections use a System MS connector, which allows quick mating of the required conductors. The motor also has a double-ended shaft for an encoder, allowing the addition of a 1000 LPR encoder when closed-loop verification is required. Coil insulation is rated to 340 Vdc, which supports use with high-bus chopper drives. The varnish system tolerates ambient temperatures from -20 °C to +40 °C without derating. A shaft seal helps limit dust ingress, and the motor uses standard windings with a laminated core to support consistent torque during long operating periods.

Connection Style
System MS connector
Construction type
SIGMAX construction (Enhanced)
Encoder Type
1000 LPR encoder
Frame Dimensions
3.38 in. square frame
Frame Type
NEMA 34
Holding Torque
10.8 Nm
Insulation Resistance
100 Megohms
Insulation Voltage Rating
340 Vdc
Leadwire Configuration
4 lead parallel
Motor Length
133 mm
Mounting Type
Heavy duty NEMA
Operating Temperature
-20°C to +40°C
Product Type
Stepper Motor
Rotor Design
Laminated
Shaft Design
Double ended for encoder
Shaft Feature
Straight key
Shaft Seal
with shaft seal
Stack Length
2 stacks
Step Accuracy
±1.5%
Step Angle
1.8°
Winding Type
Standard
  • K32-HCHJ-LEK-PF-01
  • K32HCHJ LEK PF 01
  • K32HCHJ-LEK-PF-O1
  • K32HCHJLEKPF01

Frequently Asked Questions about K32HCHJ-LEK-PF-01:

Q: What type of shaft design is offered on the K32HCHJ-LEK-PF-01 stepper motor?

A: The K32HCHJ-LEK-PF-01 features a double ended shaft with a straight key and shaft seal, allowing for encoder attachment and added protection.

Q: What kind of encoder is provided with the K32HCHJ-LEK-PF-01?

A: This motor is equipped with a 1000 LPR encoder for precise position feedback.

Q: What is the holding torque for the Pacific Scientific K32HCHJ-LEK-PF-01 motor?

A: The K32HCHJ-LEK-PF-01 has a holding torque of 10.8 Nm.

Q: What are the frame dimensions and type for the K32HCHJ-LEK-PF-01?

A: It features a 3.38 inch square frame, conforming to the NEMA 34 frame type standard.

Q: What is the step angle for the K32HCHJ-LEK-PF-01 stepper motor?

A: The step angle of this motor is 1.8°, providing accurate and consistent movement increments.


Internal Product Review

  • ‘‘The K32HCHJ-LEK-PF-01 is a Pacific Scientific stepper motor featuring enhanced SIGMAX construction. A 1.8° step angle and ±1.5% step accuracy support precise, repeatable motion in indexing applications. The 10.8 Nm holding torque is a strong performance advantage for demanding positioning duty.’’

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