E22NRHT-LNF-NS-00 Kollmorgen
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The Kollmorgen E22NRHT-LNF-NS-00 is a NEMA 23 hybrid stepper motor with a frame diameter of 2.25 inches and SIGMAX construction. Part of the E Hybrid Stepper Motors series, it features a step angle of 1.8 degrees with 200 steps per revolution and operates within an insulation class B at temperatures from -20°C to 40°C. The motor uses a regular leadwire connection style with 4 lead parallel connections and has a smooth shaft design.
Internal Product Review
The E22NRHT-LNF-NS-00 is a Kollmorgen hybrid stepper motor in a NEMA 23 frame with a 1.8 degree step angle. Max-torque-at-low-speed winding and ±1.5% step accuracy give this unit confident positioning performance in demanding indexing applications. A strong choice for compact motion systems, especially with 200 steps per revolution.
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Product Description:
The E22NRHT-LNF-NS-00 is a hybrid stepper motor produced by Kollmorgen within the E Hybrid Stepper Motors series. As a two-phase incremental positioning device, it converts discrete drive pulses into precise shaft movement for pick-and-place heads, indexing tables, and small gantries that require repeatable low-speed torque without an encoder. SIGMAX construction minimizes detent torque by shaping the stator teeth, while the laminated rotor reduces eddy-current losses during rapid commutation.
The motor is built on a 2.25-inch frame that follows the NEMA 23 mounting pattern, allowing installation on compatible legacy brackets and gearheads. Class B winding insulation rated at 130 °C withstands long duty cycles, while an insulation resistance of 100 megohms helps prevent leakage paths that could trigger ground faults in moist cabinets. The windings are isolated for up to 340 VDC, allowing the coil set to tolerate modern high-bus microstepping drives. A four-lead parallel hookup matches the regular lead-wire connection style and pairs with drives that deliver the high current needed for the maximum-torque-at-low-speed winding. Two magnetic stacks increase holding force without making the motor body excessively long. The motor has a smooth, unkeyed shaft and no shaft seal. Protection against liquid ingress is therefore required when the unit is installed in washdown machinery.
The ambient operating range spans -20 °C to +40 °C, supporting thermal stability in unconditioned enclosures and refrigerated cells. Step-position error remains within ±1.5%, keeping commanded movement within typical tolerance ranges for small-parts handling. Each full step advances the rotor by 1.8 degrees, producing 200 mechanical positions during one complete shaft revolution. The drive controls the motor through a known sequence of electrical pulses, with each pulse corresponding to a fixed angular movement. This operating method supports repeatable open-loop positioning in applications where the mechanical load remains within the available torque range. Proper acceleration and deceleration profiles help prevent missed steps when the axis starts, stops, or changes direction rapidly.
