Product Description:

The E34HRHT-LDK-NS-00 is a hybrid stepper motor produced by Kollmorgen within the E Hybrid Stepper Motors series. Designed for indexing and positioning tasks in automated machinery, this four-stack unit translates digital pulse trains from a drive into precise mechanical rotation. It supplies incremental motion without requiring an external feedback device, making it suitable for open-loop motion systems that use controlled step commands.

The motor is built on a NEMA 34 frame, allowing it to fit standard 86 mm mounting patterns, while its heavy-duty flange resists misalignment forces. A holding torque of 1240 oz-in secures loads when the drive is energized, supporting vertical axes that must resist back-driving. Each phase carries a rated current of 5.2 A, and the copper windings have 0.71 Ω of resistance and 8.7 mH of inductance; these values affect driver sizing and current rise time. The motor advances in full-step increments of 1.8 degrees, producing 200 discrete steps per revolution with a linear step accuracy of ±1.5%. A low-loss rotor built with SIGMAX construction has 0.035 oz-in-s² of inertia, balancing rapid acceleration with damping for resonance control.

The winding system operates at ambient temperatures from -20 °C to +40 °C before derating is required. Class B insulation supports an internal hot-spot temperature of 130 °C and provides 100 MΩ of insulation resistance at a 500 V test potential. Axial bearings accommodate up to 180 lb of thrust, while radial loads can reach 96 lb when the smooth shaft is coupled through pulleys or gears. A thermal resistance of 1.7 °C/W supports heat transfer from the stator to the housing, so fan or plate cooling can be added if the duty cycle approaches continuous stall. Four parallel lead-wire conductors provide the electrical connections, and the heavy-duty mount supports installation inside NEMA enclosures.