Product Description:

The E33NRFT-LNN-NS-00 is a hybrid stepper motor produced by Kollmorgen within the E Hybrid Stepper Motors series. As a 3-stack unit, it converts discrete command pulses into precise shaft rotation for indexing tables, dispensers, and other open-loop positioning tasks in industrial automation. Its hybrid stepper design supports repeatable incremental motion and stable holding at standstill when the windings are energized. This operating style suits pulse-driven systems that need controlled indexing without a continuous servo feedback loop.

This model uses SIGMAX construction to boost magnetic flux across the air gap, delivering a holding torque of 975 oz-in. Its square NEMA 34 frame uses a common mounting footprint that fits many standard brackets and machine plates. The rotor advances by 1.8 degrees per command, producing 200 full steps per revolution, and step accuracy remains within ±1.5%. Low rotor inertia of 0.025 oz-in-s² helps the motor respond quickly during low-speed acceleration where strong torque is needed. Eight conductors exit through a regular lead-wire harness, and the 8 lead arrangement allows series or parallel coil connections. The minimum lead size is 22 AWG, and the smooth shaft supports direct coupling to pulleys or clamping hubs.

The electrical system uses Class B, 130 °C insulation and withstands a 340 V DC test potential with an insulation resistance of 100 MΩ. Thermal energy moves from the windings to the frame at 2.0 °C/W, and the motor operates in ambient temperatures from -20 °C to +40 °C. The shaft supports an axial force of 180 lb and a radial load of 35 lb without exceeding bearing limits. Overall weight is 7.6 lb, which should be considered when the motor is mounted on moving slides, gantries, or other axes with limited payload capacity. These values support applications that need predictable thermal performance, solid load handling, and reliable electrical isolation during operation.