E 34HCHT-LEK-PH-01 Kollmorgen
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The Kollmorgen E 34HCHT-LEK-PH-01 is a hybrid stepper motor from the E Hybrid Stepper Motors series with a NEMA 34 frame and SIGMAX construction. It provides a holding torque of 1240 oz-in and features a step angle of 1.8 degrees for 200 steps per revolution. The motor has an insulation class rated for 130°C and operates at a rated current of 5.2 Amps per phase.
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Product Description:
The E 34HCHT-LEK-PH-01 is a hybrid stepper motor manufactured by Kollmorgen within the E Hybrid Stepper Motors series. As a two-phase step actuator, it converts drive current into incremental rotation, allowing machine builders to position tooling, index conveyors, or meter fluids without closed-loop feedback. Its NEMA 34 frame and SIGMAX magnetic architecture make it suitable for motion stages that require repeatable step accuracy across moderate load ranges.
With a holding torque of 1240 oz-in, the three-stack design supplies static torque for lead-screw or clamp drives that must remain motionless while the energized motor is at a standstill. Each mechanical step measures 1.8 degrees, providing 200 discrete increments per shaft revolution and allowing the controller to issue whole-step commands when coarse positioning is acceptable. The rated current is 5.2 A per phase, so the drive electronics must supply the required phase current without exceeding the motor’s thermal limits. The copper windings have a phase resistance of 0.71 Ω, which affects the voltage required to bring the winding current to its rated level. A phase inductance of 8.7 mH influences the electrical time constant and the rate at which current rises in response to drive pulses.
The winding system uses Class B insulation rated to 130 °C, allowing operation while the internal temperature remains within the insulation limit. The motor has an insulation resistance of 100 megohms, which helps restrict leakage current between electrically isolated parts. Its dielectric withstand capability is 340 VDC, providing additional protection when the motor is connected to a compatible drive. The permitted ambient operating range is -20 °C to +40 °C, supporting use in a variety of industrial settings. Thermal energy moves from the stator to the housing at 1.7 °C/W, while the 9.7 lb mass provides thermal inertia that slows temperature rise during periods of peak demand. A rotor inertia of 0.035 oz-in-s² moderates acceleration response, and the ±1.5% step accuracy supports repeatable positioning during commanded moves.
