E32NRFA-LNS-04 Kollmorgen
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The Kollmorgen E32NRFA-LNS-04 is part of the E Hybrid Stepper Motors series and features a NEMA 34 frame size with NEMA mounting style. This stepper motor offers 1.8 degree step angle for 200 steps per revolution and achieves +/- 1.5 percent step accuracy. It is built with SIGMAX construction and operates with regular leadwire connection and an insulation class of B rated for 130 degrees Celsius.
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Product Description:
The E32NRFA-LNS-04 hybrid stepper motor is produced by Kollmorgen within the E Hybrid Stepper Motors series. Intended for incremental positioning and speed control in industrial automation, the unit converts digital pulse trains from a drive into discrete shaft movement. It employs SIGMAX construction to increase magnetic flux and is supplied with a regular lead-wire connection for straightforward field wiring. The motor mounts on machinery through a standardized NEMA interface. With 200 full steps per revolution, it supports fine motion control without requiring external feedback.
The motor occupies a NEMA 34 frame, giving it a 3.4-inch square face that fits common gearbox and bracket patterns. Each electrical step advances the rotor by 1.8 degrees, providing precise incremental movement. An 8-lead winding arrangement allows series, parallel, or unipolar configurations to accommodate different drive current limits. The motor uses Class B insulation rated for 130 °C to withstand heat generated during operation. Its windings tolerate up to 340 VDC between the phases and the laminated core, allowing use with compatible high-voltage microstepping drives. The regular lead-wire connection also provides direct access to the winding leads when configuring the selected electrical arrangement.
Positional repeatability is maintained within a ±1.5% step accuracy band, so commanded motion closely tracks theoretical travel without encoder feedback. The motor operates from -20 °C to +40 °C, allowing use in unheated facilities and other industrial areas with moderate ambient temperatures. Its internal insulation provides 100 megohms of resistance when tested at room temperature, minimizing leakage current and helping protect upstream electronics. The 2-stack rotor increases detent torque while retaining the NEMA 34 mounting face, providing greater holding capability for low-speed indexing applications. This holding capability helps the motor maintain its commanded position when the attached load is stationary.
