Custom PM Mini Stepper Motor Manufacturer | Wholesale Prices & 72H Drawings
MAINTEX is a direct factory making high-precision mini stepper motors. We have our own R&D team and sell to customers worldwide. With 70 engineers, we can send you free 2D/3D drawings in just 72 hours. You can customize everything: size, voltage, torque, gear ratio, shaft & lead wire lengths and more. We have finished 3,000+ projects for clients in over 100 countries. Every day, we make 600,000 motors, so we can give you stable quality and fast delivery for your business.
Mini Stepper Motor In China
Mini Stepper Motors for Smart Home, Medical, and Industrial Automation.
20mm mini stepper motor provides smooth positioning for medical instruments and security cameras.
- Rated Voltage:5V
- Reduction Ratio： 1/85
- Torque: 40~60mN · m (Ratio dependent)
- Pre-gearing Angles: 7.5°
24mm 5V- 12V reduction stepping motor, noise ⋜35dB, is the first choice for the air conditioning and intelligent valve industry.
- Reduction Ratio： 1/32,1/64
- Torque:35~80mN.m (Ratio dependent)
- Pre-gearing Angles: 5.625° / 11.25°
- Rated Voltage: 5 -12v
28mm compact unipolar stepper motor, combining cost-effectiveness with industrial durability, is suitable for office equipment and general automation.
- Reduction Ratio：1/64
- Torque: 90 mN · m (Ratio dependent)
- Pre-gearing Angles: 5.625°
- Rated Voltage: 24v
35mm 12V/24V DC mini stepper motor, providing a torque of over 300 mN · m. Effectively preventing coil burnout caused by motor stall.
- Reduction Ratio： 1/42.5,1/85
- Torque: 100~300mN · m (Ratio dependent)
- Pre-gearing Angles: 3.75° / 7.5°
- Rated Voltage: 12 – 24v
Why You Need Mini Permanent Magnet (PM) Stepper Motor ?
MAINTEX specializes in manufacturing permanent magnet stepper motors. These products have sufficient power and a small size, and both aspects are well balanced.
Built-in precision gears provide high torque without needing external gearboxes.
Available in ratios from 1/32 to 1/85 to meet different speed needs.
Consistent rotation angle, no drifting, no deviation, stable and reliable positioning.
Validated 10,000-hour continuous operation for all MAINTEX mini stepper motors.
Optimized gear meshing technology keeps the operating noise below 35dB – 40dB.
Automated winding ensures ±10% resistance tolerance.
Reliable performance across -20°C to +80°C ranges.
Class B/E insulation. 600VAC dielectric strength.
From 1 Unit To 100,000: Flexible Customization At Scale
We solve the conflict between high-end customization and strict MOQs for mini stepper motor. We support small-batch trial orders from 1 to 50 pieces, and provide customized shafts, gears, and parameters for geared mini stepper motor to speed up your R&D and testing. With 30+ automated production lines, we quickly switch from prototyping to mass production of 600,000 PM stepper motors per day, keeping your supply chain stable at all stages.
Over 30 Automated Lines: Eliminating Quality Variations
Manual assembly causes unstable performance of mini stepper motor, while our fully automated production guarantees consistent quality for every BYJ stepper motor. We eliminate human errors in precision gear assembly and coil winding, upholding zero-defect standards. This enables us to meet strict long-term supply demands for small reduction stepper motor from global top brands including Gree and Midea.
Resource
To learn more about our range of mini stepper motors, please download the complete catalog.
Download datasheets for our representative stepper motor models. For complete specifications or custom technical drawings, please contact our engineering team.
One-Stop Mini Stepper Motor Custom & Production
MAINTEX is a professional permanent magnet stepper motor manufacturer with a 45,000 ㎡ production base and an annual output of 80 million units. We own 225+ patents, participate in 12 national & military standards, and hold ISO, IATF16949, CE, RoHS certifications. Our products are exported to 100+ countries, including Southeast Asia, Middle East, Eastern Europe & USA, with full customization, traceability and global technical support.
Mini Stepper Motor Application Solutions
Low noise＜40dB, smooth & vibration‑free. 20/24/25mm mini PM stepper motors precisely control swing, dampers, and valves. Silent & comfortable, suitable for AC, fresh air, smart curtains. Exported to 100+ countries.
Maintex 28BYJ permanent magnet geared stepper motor accurately controls the nozzle and seat cover, uses corrosion-resistant gears for humid bathrooms, runs stably 24/7, quiet and durable for long-term smart toilet use.
Pet owners prefer quiet, jam‑free, accurate feeding. Our 28BYJ / 35BYJ series with built‑in gearbox provides strong torque to avoid blockages. Precise angle control ensures consistent portions. Silent & stable, popular in North America, Europe, Southeast Asia.
Designed for high humidity, ammonia, and corrosive farming environments. 35BYJ delivers 300mN.m high torque with built‑in gearbox, operates stably from -20℃ to 80℃, jam‑free & precise feeding. Ideal for modern poultry & pig farm automation.
More About Our Factory
- Data Sheet
| Type | BYJ Series Mini Stepper Motor |
| Rate Voltage | Available in 5V, 9V, 12V, and 24V DC |
| Rated Frequency | 100-800Hz |
| Step Angle | 3.75°,5.625°,7.5°,11.25° |
| Exciting Method | 1-2,2-2 |
| Resistance | 10-400Ω |
| Gear Ratio | 1/32,1/42.5,1/64,1/85,1/100 |
| Rated Torque (min) | 35-300mN.m |
| Dimensions | φ20mm,φ24mm,φ28mm,φ35mm |
| Operating Temp Range | -20°C–80°C |
Testimonials
We chose MAINTEX because they don’t just follow standards—they draft them. Knowing they participate in National Military Standards (GJB) gave us confidence to integrate their 20BYJ mini stepper motor into precision optical sensors. Verified reports from their Zeiss equipment fully meet our strict demands. Their team provided 3D drawings in 48 hours, greatly shortening R&D cycles.
Marcus SchmidtSenior Procurement EngineerStable resistance is critical for mass supply. MAINTEX solved our long-term quality anxiety with 30+ automated lines. Even with a daily capacity of 600,000 mini stepper motors, they keep resistance tolerance within ±10%, which small factories cannot match. Their 8D team provides root-cause diagnostics in 72 hours, vital for Fortune 500 lines.
Rajesh KapoorHead of Operations (Home Appliance Sector)Most manufacturers turned us down due to our small initial order, but MAINTEX supported our trial run of just 20 units.They provided full customization for shaft length and torque on our 35BYJ geared stepper motor.They also offer real-time production tracking with videos and photos, making remote purchasing feel like being on-site—transparent and trustworthy.
David O'ConnorR&D Director (Robotics Startup)
Yes. Our 70 engineers can modify the shaft, gears, or wiring to fit your needs for mini geared stepper motors. We provide free 3D drawings within 3 days and support small trial orders of just 20 units for testing.
We have 80 quality inspectors to identify issues quickly and provide a full report within 3 days. With IATF16949 certification, every batch of mini stepper motors is fully traceable to avoid repeated problems.
We rely on testing, not guesswork. Adhering to national military standards (GJB), our mini reduction stepper motors operate reliably from -40°C to +85°C with wear-resistant materials and strict checks by 80 QA staff. They keep running in dusty farms or hot vehicle interiors.
This is a common concern, but not a problem here. Our 30+ automated lines ensure every mini stepper motor is produced identically, with high-precision testing using German Zeiss equipment. Each batch includes an original test report—samples and mass orders are fully consistent.
We provide real-time production progress updates with photos and videos of assembly, testing, and packaging. We can also host live video calls to show your order status. It’s just like being on-site, fully transparent and reassuring.
We use POM or sintered metal gears based on load requirements, with gearboxes pre-filled with high-performance lubricant. This ensures our mini geared stepper motors run stably without stripping or wear from -40°C to +85°C.
