E33NRHP-LNF-NS-00 Kollmorgen
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The Kollmorgen E33NRHP-LNF-NS-00 is a stepper motor from the E Hybrid Stepper Motors series with a NEMA 34 frame size and SIGMAX construction. It delivers a holding torque of 7.03 Newton-meters and operates with a rated current of 7.9 Amps per phase. The motor weighs 3.45 kg and features a smooth shaft and 200 steps per revolution.
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Product Description:
The E33NRHP-LNF-NS-00 is a hybrid stepper motor produced by Kollmorgen within the E Hybrid Stepper Motors series. As a two-phase stepping actuator, it moves a load by fixed angles under open-loop control, allowing tooling, tables, or metering pumps to be positioned without feedback sensors. Its SIGMAX construction concentrates magnetic flux so the motor can deliver high usable torque while retaining the standard NEMA mounting pattern common to packaging, semiconductor, and pick-and-place equipment.
The motor develops a holding torque of 7.03 N-m, which indicates how much static twisting force it can resist when the windings are energized and the shaft is stationary. To generate that torque, the drive must supply a per-phase current of 7.9 A; matching the drive to this rating helps prevent overheating. Electrical response is governed by the phase inductance of 3.1 mH, so current rises quickly enough for microstepping without midrange instability. Each full step advances the shaft by 1.8 degrees, and 200 steps per revolution support precise positioning when the motor is coupled to lead screws or belt stages. The standard NEMA 34 frame has a 3.4-inch square face that mates directly with common gearboxes and brackets. A low rotor inertia of 0.025 oz-in-s² minimizes settling time, helping indexing tables start and stop rapidly during high-cycle operation.
The motor has an axial thrust capacity of 801 N, allowing it to carry vertical ball-screw loads without auxiliary bearings. Continuous operation is permitted from -20 °C to +40 °C, which is suitable for typical control-cabinet conditions and keeps the insulation materials below their 130 °C Class B limit. The insulation system can withstand 340 V DC between the windings and the laminated core, providing electrical isolation for use with compatible stepper drives. The motor should be installed with suitable alignment and load support so axial forces remain within the permitted capacity. Drive current settings should also account for operating speed, duty cycle, and available cooling to maintain stable performance.
