High-Torque 12V PMDC Electric Side Step Motor: Precision Performance & Technical Specs
For modern electric and commercial pickup trucks, automatic running boards provide seamless entry and sleek aerodynamics. However, the true
durability of any power step system lies within its drive unit.
Engineered with a Permanent Magnet DC (PMDC) architecture, our heavy-duty side step motor delivers high cranking torque, silent deployment, and all-weather chassis protection—built strictly to satisfy OEM and high-end aftermarket standards.
1. High-Torque Power Output & Heavy Load Capacity
Designed to reliably deploy running boards even under extreme winter ice buildup or heavy mechanical loads:
80W Rated Power Output: Running on standard DC 12V vehicle power, the motor provides strong, immediate response upon door trigger.
20Nm Heavy Working Load: Maintains a steady deployment speed of 8±1 RPM under a continuous 20Nm load with current consumption capped at ≤12A.
≥50Nm Retarding Torque: Offers exceptional holding power (up to ≥50Nm torque at ≤28A), ensuring the step stays firmly locked in place without slipping under weight.
2. IPX7 Waterproof Protection & Low-Noise Engineering
Operating directly under the vehicle frame exposes components to severe road spray, mud, and weather extremes:
IPX7 Waterproof Rating: Hermetically sealed housing protects internal components from water immersion, high-pressure car washes, and road salt corrosion.
Whisper-Quiet Operation (≤60dB): Advanced internal gear geometry and precision bearings keep noise levels under 60dB, delivering a premium, silent extension and retraction experience.
Efficient No-Load Performance: Smooth rotation at 15±1 RPM with minimal energy draw (≤2.5A no-load current), preserving vehicle battery health.
3. Key Technical Specifications Summary
| Specification Parameter | Value / Requirement |
| Motor Type | Permanent Magnet DC Motor (PMDC) |
| Rated Voltage | DC 12V |
| Rated Power | 80W |
| No-Load Speed / Current | 15±1 RPM / ≤2.5A |
| Working Load (20Nm) | 8±1 RPM / ≤12A |
| Retarding / Holding Torque | ≥50Nm / ≤28A |
| Operating Noise Level | ≤60dB |
| Ingress Protection Level | IPX7 Waterproof |
Conclusion: Built for Long-Term OEM Reliability
Whether supplying aftermarket brands or seeking direct factory manufacturing for power side step assemblies, this 80W / 50Nm PMDC motor guarantees low return rates, high thermal tolerance, and long service life.
Factory Direct Supply & B2B Solutions: As an automotive power accessory manufacturer, we provide custom wiring harness connectors, vehicle-specific bracket fitments, and competitive wholesale pricing. Contact our engineering team today for samples, technical documentation, and bulk orders!
