Product Description:

The E34HRHT-LDS-SS-02 is a hybrid stepper motor manufactured by Kollmorgen as part of the E Hybrid Stepper Motors series. Designed for precise open-loop positioning in packaging lines, pick-and-place axes, and indexing tables, the unit combines a permanent-magnet rotor with fine stator laminations to deliver incremental motion without feedback devices. Kollmorgen applies its SIGMAX construction to increase flux density, and the housing follows a heavy-duty NEMA mounting pattern suitable for direct coupling to gearheads or lead screws in industrial automation.

With a frame that meets the NEMA 34 envelope, the motor provides a holding torque of 1240 oz-in, allowing stable load retention while the motor is energized at standstill. Each electrical phase is rated for 5.2 A, and the electromagnetic design produces a basic step angle of 1.8 degrees, so the shaft advances through 200 discrete positions per revolution. Positioning repeatability remains within ±1.5%, which is adequate for most material-handling duties. The four-stack rotor increases detent torque at low speed. Its winding profile is tuned for maximum torque development in that region, giving the motor a favorable torque-to-inertia ratio for start-stop cycles.

The phase circuit has a resistance of 0.71 ohms and an inductance of 8.7 mH, which support the selection of an appropriate microstepping driver and suitable current-decay settings. Continuous operation is permitted from -20 °C to +40 °C, and thermal dissipation is characterized by a winding-to-ambient thermal resistance of 1.7 °C/W. The Class B insulation system withstands winding temperatures up to 130 °C. It also provides 100 megohms of insulation resistance under test conditions and has a dielectric rating of 340 VDC. A standard lead-wire connection with four parallel leads simplifies wiring, while the double-ended shaft allows an encoder or brake to be attached.