E31NCLP-LNN-NS-00 Kollmorgen
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The Kollmorgen E31NCLP-LNN-NS-00 is a hybrid stepper motor from the E Hybrid Stepper Motors series. It features a NEMA 34 frame size, holding torque of 344 oz-in, and an axial shaft load capacity of 180 pounds. This motor has a rated current of 4.2 amps per phase and uses a SIGMAX construction for high performance.
Internal Product Review
The E31NCLP-LNN-NS-00 is a Kollmorgen hybrid stepper motor in a NEMA 34 frame with 344 oz-in holding torque. Technical performance is strong, with a 1.8-degree step angle and ±1.5% step accuracy supporting dependable positioning. Rated at 4.2 A per phase and equipped with a System MS connector, the motor is an excellent fit for high-speed torque applications.
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Product Description:
The E31NCLP-LNN-NS-00 is a hybrid stepper motor produced by Kollmorgen for the E Hybrid Stepper Motors series. Built on the NEMA 34 frame, it uses SIGMAX construction to concentrate magnetic flux and increase torque density. A smooth shaft matches the NEMA mounting arrangement, and mechanical coupling is limited by a radial load of 35 lb. Power and feedback reach the unit through a System MS connector on a four-lead series cable set, while a single rotor stack delivers 200 discrete steps per revolution for position control with ±1.5% step accuracy.
At standstill, the motor can maintain a load with 344 oz-in of holding torque, a value made possible by the high-density winding that also supports a rated phase current of 4.2 A. Each command pulse turns the shaft by 1.8 degrees, and the phase circuit presents 0.52 ohms of resistance together with 4.4 mH of inductance. This combination shapes the current rise time and determines the driver voltage requirements. Rotor dynamics are characterized by an inertia of 0.0083 oz-in-s², allowing rapid acceleration without overshoot when the winding type is optimized for maximum torque at high speed. Thermal performance is governed by a 3.9 °C/W path from the coil to the case. The Class B insulation system is rated for 130 °C and has a dielectric withstand voltage of 340 V DC.
The motor has an axial shaft capacity of 180 lb and a minimum insulation resistance of 100 megaohms to limit leakage current. It operates reliably from -20 °C to +40 °C; below this range, lubricant viscosity rises, while temperatures above this range require additional cooling. The total mass is 3.2 lb, making the motor light enough for gantry or indexer axes while allowing it to absorb heat during intermittent duty. Its thermal path transfers winding heat to the case, where it can dissipate into the surrounding air or attached machine structure.
