Stepper Motor
Rotor made of sintered neodymium magnet – delivers 20% higher holding torque than ferrite designs
Step angles of 7.5°, 15° or 18° – ideal for applications where fine micro‑stepping is not required
Ultra‑low power consumption – works directly from 5 V, 12 V, or 24 V battery packs
Slim profile down to 12 mm thick – fits into medical cassettes and HVAC flaps
Simple two‑phase bipolar or unipolar drive – reduces driver IC cost
Quiet operation at rated speed – no irritating high‑frequency noise
Kechen Motor – Permanent Magnet Stepper Motor Manufacturer in China
A permanent magnet (PM) stepper motor uses a magnetized rotor and a toothed stator to produce discrete rotational steps. Unlike hybrid stepper motors that require complex fine‑pitch rotors, our PM series offers a simpler, more cost‑effective solution for applications that do not need micro‑step resolution. The stator is built from low‑loss silicon steel laminations, while the rotor uses high‑grade sintered NdFeB magnets – providing consistent holding torque even after thousands of cycles. The housing is made of corrosion‑resistant aluminum alloy (6063) with a stainless steel output shaft. These motors are designed for indoor installation on plastic panels, thin metal brackets, or concrete walls (non‑vibrating environments). Standard protection is IP40 (dust‑protected); optional IP54 sealing is available for light moisture exposure. All models comply with CE, RoHS, and reach the insulation class B (130°C).
Top Features of Kechen Motor Permanent Magnet Stepper Motor You Should Know
Every Kechen PM stepper motor uses a sintered NdFeB magnet rotor, delivering reliable holding torque and stable detent torque even when power is off. The stator windings are impregnated with class B insulation varnish to resist moisture and prevent shorts. You can request custom coil resistance to match your driver voltage, as well as double shafts, different cable exit directions, or integrated gearboxes. Safety compliance includes IEC 60335‑1 for household appliances – each motor is hipot‑tested at 500 VAC for one second. Thermal management is straightforward: the open frame allows free air circulation, and for enclosed applications we offer a thermally conductive potting option. Cable connections can be customized with pre‑stripped leads or JST‑compatible connectors.
| Parameter | Kechen Motor PM Series Range (Example) |
|---|---|
| Motor Frame Size (Square / Round) | 8mm, 10mm, 15mm, 20mm, 25mm, 35mm, 42mm (body length varies by stack) |
| Step Angle | 7.5°, 15° or 18° (full step, non‑microstep drive) |
| Rated Voltage | 5 V, 12 V, 24 V (custom 3 V – 24 V available) |
| Phase Resistance (per winding) | 5 Ω – 200 Ω (depending on voltage and torque requirement) |
| Holding Torque (rated current) | 20 – 250 mN·m (approx. 0.2 – 2.5 kgf·cm) |
| Detent Torque (power off) | 5 – 40 mN·m (varies by magnet strength) |
| Insulation Class | Class B (130°C) standard, Class F optional |
| Protection Grade (IP) | IP40 standard, IP54 available with sealing |
| Lead Wires / Connector | 4 or 6 wires, pre‑stripped or JST‑compatible connector |
| Optional Customizations | Double shaft, axial/radial cable exit, integrated gearbox, shaft machining, custom winding resistance |
Kechen Permanent Magnet Stepper Motor Products
Kechen Permanent Magnet Stepper Motor 3D Design
Enhancing Safety and Aesthetics: Applications of MotiTech Permanent Magnet Stepper Motor
Automotive HVAC systems – PM steppers drive air‑mix and mode doors quietly, with fail‑safe detent torque preventing unintended flap movement. Security cameras – pan‑and‑tilt mechanisms benefit from the motor’s low‑power idle state, extending battery life for outdoor PTZ units. Home appliances – microwave oven turntables, coffee machine grinders, and air fryer stirrers use the 7.5° step angle for reliable rotation without feedback sensors. Office automation – document scanners, label printers, and ATM note feeders rely on the simple bipolar drive and long lifespan. Medical devices – disposable insulin pumps, syringe drivers, and dental X‑ray positioners choose our PM series for its small footprint and predictable step accuracy. Additional fields include smart locks, toy animatronics, agricultural seed meters, and HVAC damper actuators.
Quick Installation Note
Connect the two phase wires to driver terminals A / A̅ and B / B̅ (or A / common / B for unipolar). No encoder alignment or step‑angle calibration is required – the motor indexes to the nearest full step when powered on.
Need a non‑standard voltage below 5 V or a custom lead length longer than 300 mm? Contact our engineering team – low MOQ available for prototypes.