Why Choose Maintex for Your PM Stepper Motor?
- 20 years PM stepper motor manufacturing experience
- Full certification like CE,ROHS,REACH, ISO9001，IATF 16949
- 70-person R&D team
- Collaborated with fortunne 500 companies
- Short Lead Time: Scalable 80M+ annual capacity ensures stable delivery cycles for high-volume OEM orders
- 24-hour on-line service
Engineering-Driven PM Stepper Motor Factory for High-Duty Applications
MAINTEX is a source manufacturer of BY (Direct Drive) and BYJ (Geared) series Permanent Magnet Stepper Motors As a lead drafter of 12 national motor standards, we provide high-reliability tin can motors for HVAC damper actuators, medical fluid pumps, security PTZ cameras, and smart control valves.
With 70+ R&D engineers, we translate your electrical and mechanical requirements into 2D/3D CAD drawings within 72 hours. Our manufacturing process minimizes torque deviation and prevents motor stalling, ensuring Fortune 500-level quality for large-scale OEM/ODM projects requiring zero-defect mass production.
Permanent Magnet Stepper Motors In China
IATF 16949 certified BY & BYJ series (3V–24V) for high-speed printer positioning and high-torque control in AC louvers, smart toilets, and precision valves.
High-speed 3V–24V motors for low-inertia positioning. Direct shaft output ensures zero-backlash response.
- Step Angles: 3.75° / 7.5° / 15° / 18°.
- Best For: Printers, Scanners, and high-frequency PTZ indexing.
High-torque design (3V–24V) with precise reduction ratios (1:32 to 1:100). Engineered for mechanical self-locking.
- Torque: 8 mNm – Up to 300 mNm (Ratio dependent).
- Pre-gearing Angles: 3.75° / 5.625° / 7.5° / 11.25°.
- Best For: HVAC louvers, Smart Toilets, and fluid valves.
Why You Need PM Stepper Motor ?
Partner with a national motor standard drafter to elevate your product’s performance. Our high-capacity automated production lines deliver ultra-quiet, precision-engineered BY and BYJ series motors, designed to ensure consistent reliability and seamless integration in demanding global applications.
Lead drafter of 12 national motor standards.
Validated 10,000-hour continuous operation for all MAINTEX PM stepper motors.
Noise < 40dB at 10cm.
Automated winding ensures ±10% resistance tolerance.
Reliable performance across -20°C to +80°C ranges.
Class B/E insulation, 500V–600VAC dielectric strength.
High step-angle accuracy with zero cumulative error for dosing.
Real-time technical consultation directly with our engineering team.
No Gear Stripping During Accidental Stalls
Whether it’s an outdoor dome frozen by ice or an indoor camera blocked by an obstacle, mechanical stalls are inevitable. Instead of fragile plastic, our High-Tenacity Sintered Metal Gears are built to take the hit. They can withstand 3x the rated torque without stripping teeth, ensuring the camera resumes smooth rotation the moment the blockage is cleared.
PM Stepper Motor Production: 600,000 Units Daily
Maintex operates over 30 automated production lines with a daily production capacity of up to 600,000 units, enabling us to reliably meet the global demand for permanent magnet motors. Our fully automated winding process addresses the industry’s long-standing issue of batch-to-batch variation, maintaining resistance tolerances within an extremely narrow range of ±10% and delivering a dielectric strength of 500/600 VAC. This automotive-grade manufacturing precision ensures that every motor delivers the same ultra-quiet performance and a 10,000-hour operational lifespan, regardless of whether you order 1,000 or 1,000,000 units.
Resource
To learn more about our range of PM stepper motors, please download the complete catalog.
Download datasheets for representative models. For full specifications or custom technical drawings of other products, please contact our engineers.
Company Advantage
Operating across 45,000 m² of manufacturing space with 30+ automated production lines, MAINTEX ensures stable supply-chain support for Fortune 500 partners. Our massive scale delivers a daily output of 600,000 units, totaling over 80 million units annually. Supported by an 80-person QA team and IATF 16949-certified quality systems, we guarantee that every PM stepper motor maintains strict batch consistency and industrial-grade durability for global OEM/ODM projects.
PM Stepper Motor Application Solutions
You need your AC louvers and smart vents to move smoothly without that annoying hum. We’ve fine-tuned the magnetic circuit of our motors to stay under 40dB, so your customers only feel the airflow, never the vibration. It’s the simplest way to give your HVAC system that “high-end” quiet feel.
Key Applications: AC horizontal/vertical swing blades, smart ventilation ducts.
If your camera jitters during rotation, your HD feed is useless. We’ve optimized our BY series to eliminate the “shaking” common in standard motors during slow pans. Plus, your camera will hit the exact same preset position every time—no drifting, no matter how many months it’s been running 24/7.
Key Applications: Outdoor surveillance domes, indoor smart IP cameras.
In dialysis or drug delivery, “close enough” isn’t an option. You need consistent torque to squeeze peristaltic tubes perfectly. Since our production is IATF 16949 certified, you get the same flow-to-speed ratio in every single batch. No surprises, just reliable performance your instruments require.
Key Applications: Hemodialysis peristaltic pumps, automated laboratory samplers.
Printers and scanners require frequent start-stop operations, which demand high motor inertia. Our BY series motors respond extremely quickly and will not lose steps due to overheating even when starting and stopping at high speeds continuously. Most importantly, even at a daily production capacity of 600,000 units, MAINTEX can still keep the resistance tolerance within ±10%. This completely solves the problem of “large batch inconsistency” which is the most headache for global OEM customers.
Key Applications: High-frequency indexing in printers/scanners, automated vending.
Your EV chargers are outdoors 24/7. You need a drive that delivers high torque without jamming or freezing when temperatures drop. Our geared stepper motors are built for these harsh environments, running flawlessly from -20°C to +80°C. It’s the reliable, low-maintenance solution you need.
More About Our Factory
- Data Sheet
| Type | BYJ Seriers | BY Seriers |
| Rate Voltage | 5-24V | 3-24V |
| Rated Frequency | 100-400Hz | — |
| Step Angle | 3.75°,5.625°,7.5°,11.25° | 3.75°,7.5°,15°,18° |
| Exciting Method | 1-2,2-2 | 1-2,2-2 |
| Resistance | 10-400Ω | 3.5-50Ω±10% |
| Reduction Ratio | 1/32,1/36,1/42.5,1/64,1/85,1/100 | — |
| Rated Torque (min) | 35-300mN.m | — |
| Dimensions | φ15mm,φ24mm,φ28mm,φ35mm | φ10mm,φ15mm,φ20mm,φ25mm |
| Holding Torque | — | 20-1200gf.cm |
| Max No-load Pull-in Frequency | — | 400-1500PPS |
| Max No-load Pull-out Frequency | — | 700-2500PPS |
| No-load Speed | — | 62.5-2400RPM |
| Inductance | — | 2-18.8mH±20% |
| Operating Temp Range | -20°C–80°C | -20°C–80°C |
Testimonials
“We struggled to find a supplier capable of modifying shaft dimensions and gearbox ratios for our medical pump project. MAINTEX’s in-house mold factory delivered custom samples based on our CAD drawings in record time. Their engineering team caught a tolerance issue in our initial design that saved us months of rework.”
Senior Mechanical Engineer, Germany“In high-precision motion control, batch-to-batch consistency is everything. We’ve integrated over 780,000 MAINTEX PM stepper motors this year, and the ±10% resistance tolerance is strictly maintained across every shipment. Having the original factory test reports included in every batch gives our QA team total peace of mind.”
Operations Manager, United States“Most large-scale manufacturers ignore small batch trial runs, but MAINTEX supported our pilot production for a new HVAC louver system. Their 70-member R&D team provided remote technical guidance for driver debugging, ensuring our holding torque and noise levels met the strict residential standards before mass production.”
R&D Director, South Korea“When we encountered a motor stalling issue in a high-humidity environment, MAINTEX’s response was unparalleled. They issued a formal 8D failure analysis report within 72 hours and suggested a specific lead wire configuration change. Their ‘Replacement First’ policy ensured our production line stayed active while the root cause was being diagnosed.”
Procurement Head, Italy
We use high-temperature enameled wires and specialized lubricants to ensure stable operation up to 80°C. This prevents magnet demagnetization, ensuring your PM stepper motor maintains its full holding torque even during heavy-duty cycles.
By optimizing stator claw geometry and using high-precision POM gearboxes, we reduce mechanical noise to under 40dB. This makes our motors ideal for silent applications like CPAP machines or security PTZ cameras.
Unless you need sub-micron precision, PM motors offer the best performance-to-cost ratio. When paired with our custom gearboxes, they reach a high torque of 300mNm in a compact size—perfect for HVAC louvers or smart valves where space and budget are tight.
Our motors feature inherent Detent Torque, providing a natural “lock” even when power is off. For vertical loads, we can integrate high-ratio gearboxes to achieve physical self-locking, ensuring your equipment stays in place at zero power consumption.
We tailor the precision to your goal. Whether it’s 3.75° for medical pumps or 7.5° for HVAC ventilation, our motors maintain a ±5% non-cumulative error. This ensures your device hits the exact same spot even after 100,000 cycles.
Yes. With our in-house mold factory, we can customize D-cut shafts, lead screws, and JST/Molex connectors based on your drawings. We support small-batch prototyping to help you move from design to mass production faster.
