E31NCHT-LEN-PD-00 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen E31NCHT-LEN-PD-00 is a NEMA 34 hybrid stepper motor from the E Hybrid Stepper Motors series. It provides a holding torque of 337 oz-in and supports an axial shaft load of 180 lb. Designed with SIGMAX construction, the motor features an insulation class of B rated for 130°C and operates with a rated current per phase of 5.4 Amps.
Internal Product Review
The E31NCHT-LEN-PD-00 is a Kollmorgen hybrid stepper motor with a NEMA 34 frame size and 337 oz-in holding torque. Differential line drive encoder output paired with 500 lines/rev resolution supports clean feedback and dependable positioning performance. A 1.8-degree step angle and ±1.5% step accuracy make the motor a strong choice for controlled low-speed motion.
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Product Description:
The E31NCHT-LEN-PD-00 hybrid stepper motor is produced by Kollmorgen within the E Hybrid Stepper Motors series. As a two-phase actuator, it converts commanded phase currents into incremental rotary motion for positioning tables, pick-and-place heads, and other automation axes. The motor uses SIGMAX construction to increase flux density, and it mounts to machinery through a NEMA flange that matches the frame size. System MS connectors carry power and feedback, allowing the unit to be connected inside modular equipment.
With a NEMA 34 frame, the single-stack rotor generates up to 337 oz-in of holding torque when the windings are driven at the rated 5.4 A per phase. The torque comes from a low resistance of 0.29 Ω and a phase inductance of 2.5 mH, values that permit rapid current rise while limiting heat buildup. The electrical interface uses four parallel leads, which help minimize voltage drop. The winding insulation is rated for 340 VDC. Class B insulation is rated for 130 °C and works with a thermal resistance of 3.9 °C/W to manage winding temperature. Insulation resistance is 100 MΩ, helping keep leakage current low. The motor weighs 3.2 lb and can accept a radial shaft load of 35 lb. A rotor inertia of 0.0083 oz-in-s² supports index moves that meet the ±1.5% step accuracy requirement.
The motor advances in 1.8° increments, providing 200 full steps per revolution. An internal encoder supplies 500 lines per revolution of differential quadrature feedback and an index pulse, allowing a drive to interpolate microsteps up to the 100 kHz channel limit. The differential line-driver outputs improve noise immunity on long cables. Up to 180 lb of axial force can be applied to the shaft, accommodating thrust loads from ball-screw assemblies. The assembly tolerates ambient temperatures from -20 °C to +40 °C. One winding is optimized for maximum torque at low speed, allowing high detent holding without multiple stacks.
