E22NRFT-LDN-NS-00 Kollmorgen
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The Kollmorgen E22NRFT-LDN-NS-00 is a stepper motor in the E Hybrid Stepper Motors series and features a NEMA 23 frame size with a NEMA mounting style. It has SIGMAX construction, 8 leads, and a smooth shaft with a step angle of 1.8 degrees for 200 steps per revolution. This motor operates within a temperature range of -20 to +40°C and has insulation rated to Class B at 130°C with a resistance of 100 Megohms.
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Product Description:
The E22NRFT-LDN-NS-00 is a hybrid stepper motor manufactured by Kollmorgen within the E Hybrid Stepper Motors series. By combining permanent-magnet and variable-reluctance principles, the device converts digital step commands into accurate incremental shaft movement for automated equipment. It uses a two-stack rotor assembly and a standard lead-wire connection, allowing direct termination to a compatible microstep drive. Typical applications include small conveyors, optical tables, and dosing pumps that require moderate torque at low speed without closed-loop feedback.
The motor follows the industry-standard NEMA 23 frame, so its 57 mm square face and NEMA mounting holes allow direct attachment to common gearboxes and linear stages. Kollmorgen’s SIGMAX construction increases magnetic flux density in the laminated rotor, which improves torque production at low speeds. The winding is optimized for maximum low-speed torque, making the motor suitable for applications that require controlled movement from a stationary position. A mechanical step angle of 1.8 degrees provides fine incremental rotation for indexing and positioning tasks. The eight-lead configuration supports series or parallel wiring, allowing the current and voltage characteristics to be matched to the connected drive. The windings use a Class B, 130 °C insulation system that resists thermal aging during normal operation.
Electrical isolation is supported by an insulation resistance of 100 megohms and a dielectric withstand rating of 340 V DC. These values provide electrical headroom when the motor is powered by a microstep amplifier connected to a high-voltage bus. Cumulative position error is limited to ±1.5%, supporting accurate motion in light-duty indexing equipment. The permitted operating temperature range is -20 °C to +40 °C, which accommodates most indoor industrial installations. A smooth shaft allows connection to clamping couplings and pulleys without requiring a keyed interface. The shaft has no seal, which reduces rotational drag, while the rotor construction maintains consistent detent torque throughout each revolution.
