E32NRFA-LNF-NS-00 Kollmorgen
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The Kollmorgen E32NRFA-LNF-NS-00 is a stepper motor from the E Hybrid Stepper Motors series with a NEMA 34 frame size and a body length of 3.76 inches. It features a holding torque of 627 oz-in, an insulation class of B rated at 130°C, and SIGMAX motor construction. This model has a step angle of 1.8 degrees, 200 steps per revolution, and operates within a temperature range of -20°C to +40°C.
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Product Description:
The E32NRFA-LNF-NS-00 is a hybrid stepper motor manufactured by Kollmorgen and supplied under the E Hybrid Stepper Motors series. Built around a NEMA 34 frame, the device converts electrical pulse trains into incremental rotary motion. This controlled movement supports indexers, pick-and-place heads, and other positioning tasks in industrial automation.
The motor housing measures 3.76 in long, and its laminated frame diameter is 3.38 in, supporting the NEMA mounting style for straightforward plate or bracket installation. A holding torque of 627 oz-in lets machinery maintain load position without auxiliary brakes, while a step angle of 1.8 degrees produces 200 discrete steps per shaft revolution. Internally, Kollmorgen’s SIGMAX construction and a two-stack rotor increase magnet density and torque linearity. The smooth shaft couples directly to gears or timing pulleys, and the rotor inertia of 0.017 oz-in-s² balances quick acceleration with speed stability. The motor uses standard lead-wire termination, with eight color-coded conductors exiting the stator through a 12.0-inch pigtail made from 22 AWG cable. This conductor arrangement provides series or parallel coil connection options. Step accuracy remains within ±1.5%, and a thermal resistance of 2.7 °C/W between the windings and ambient air supports heat transfer during operation.
The thermal and dielectric ratings support continuous-duty applications. The winding system uses Class B insulation rated for 130 °C, has an insulation resistance of 100 megohms at room temperature, and withstands up to 340 Vdc without breakdown. Coil groups are brought out through an 8-lead harness, allowing bipolar or unipolar drive modes. The motor has an operating temperature range of -20 °C to +40 °C, allowing it to function under typical industrial ambient conditions. The NEMA flange supports accurate alignment with compatible mounting surfaces, and the smooth shaft provides a direct interface for clamping couplings, gears, or timing pulleys. The mounting arrangement also helps reduce runout on connected mechanical stages when the motor is properly installed.
