802D4280-B04K by Pacific Scientific

The 802D4280-B04K stepper motor by Pacific Scientific from the POWERMAX II M Motors series delivers robust performance and reliability for demanding industrial applications. With a holding torque of 230 oz-in and a detent torque of 4.5 oz-in, this motor offers secure positioning even when de-energized. Its rotor inertia of 2.5 oz-in/s² ensures smooth acceleration and precise motion control across varying loads. Rated for an Operating Voltage Range of 24 to 75 VDC, the 802D4280-B04K adapts to a broad spectrum of power sources without compromising efficiency. Designed for continuous duty, it integrates seamlessly into automated machinery and motion systems.

Technical performance is at the heart of the 802D4280-B04K’s capability, beginning with a phase inductance of 17 mH and a phase resistance of 2.8 ohms that optimize current flow and thermal stability. The motor supports a Series Rated Current Per Phase of 0.84 A DC or a Parallel Rated Current Per Phase of 3.3 A DC, providing flexibility in drive configurations. Achieving up to Maximum Speed of 5000 RPM, it maintains a precision Step Accuracy of ±3% to minimize positional error. Thermal management is enhanced by a thermal resistance of 0.0036 °C/W, allowing for sustained high-performance operation under varying load cycles. Noise-sensitive environments benefit from its Noise Level below 45 dB, combining quiet operation with high torque density.

Operationally, the 802D4280-B04K excels under mechanical stress, offering a radial load capacity of 25 lbs and an axial load capacity of 20 lbs to resist shaft deflection and maintain alignment. The Environmental Resistance rating of IP54 ensures protection against dust ingress and water splashes, safeguarding winding insulation and internal bearings. Continuous torque delivery and accurate split-phase behavior reduce vibration, while the low detent torque prevents unwanted holding-force spikes during microstepping. Users experience enhanced uptime and reduced maintenance cycles thanks to the motor’s robust construction and standardized mounting interfaces.

Integration into existing and new automation systems is seamless: the 802D4280-B04K interfaces directly with common stepper drives and motion controllers in PLC-based architectures. Its broad voltage acceptance and dual current configuration support both series and parallel wiring schemes, facilitating system scalability. Ideal for CNC machines, packaging equipment, medical devices, and robotics, this motor meets rigorous industrial automation demands. With its combination of high torque, precise control, and environmental resilience, the 802D4280-B04K stands as a versatile solution for engineers seeking reliable motion performance.