Integrated Stepper Motor Price Guide: STM-M Series Explained and Official Price List

- “STM / STM-M” is a product series by NiMotion, and exemplified by the STM42 (42mm frame, 0.12~0.70 N·m torque), priced at approximately $120.
- Integrated stepper motor price range: From $50 (micro, low-torque) to $ 270 (industrial-grade, high-torque, IP65, bus-controlled). Key determinants: torque, voltage, control protocol, and protection rating.
- Dozens of models are available, ranging from NEMA11 to NEMA34, with localized technical support and readily available stock..
- In the low-to-mid torque segment (<5 N·m), Chinese brands (NiMotion) offer superior value versus international rivals (Nidec, Oriental Motor).
- Recommended Selection Strategy:
- Budget / Light Load → Choose STM Open-loop (USD 50~200)
- Mid-to-High Precision / Bus Control → Choose STM / STM-M Closed Loop (USD 100~300)
- Industrial Heavy-Duty / Harsh Environments → Choose STMP Closed Loop (USD 210~270)

An integrated stepper motor (Integrated Stepper Motor) is a mechatronic system that integrates the stepper motor, driver, motion controller, and encoder (in some models) into a single housing, enabling “plug-and-play” control. Compared to traditional discrete architectures (motor + driver + controller), its advantages include:
- 40%+ volume reduction, saving installation space
- 50%+ fewer wiring connections, lowering failure rates
- Enhanced electromagnetic compatibility, improved noise immunity
- Higher system reliability, ideal for high-vibration, dusty industrial environments
Click for more details: What Is an Integrated Stepper Motor?
Primary applications:
- CNC engraving machines
- 3D printers
- Medical diagnostic equipment
- Automated assembly lines
- AGV/AMR mobile robots
- Laboratory precision instruments
1.Keyword Clarification: What is STM STM-M?

“STM / STM-M” is an internal product naming convention used by NiMotion, China’s leading stepper motor manufacturer.
- Actual model: STM42 (42mm frame)
- Technical Specifications:
- Frame size: 42 mm
- Holding torque: 0.12~0.7 N·m
- Voltage range: 12–30 VDC
- Step angle: 1.8°
- Control mode: CAN/CANopen//RS485
- Operating temperature: 0°C to +40°C
- Market price: USD $60~$160
- Typical applications: Small-to-medium automation, precision positioning platforms, educational labs
2.Integrated Stepper Motor Price Comparison Table
Price list of STM Open Loop Motor without encoder
| Model | Torque | Voltage | Control method | Price range | Purchase Link |
| STM2832 | 0.05N·m | 24VDC | CAN/CANopen/RS485 | $101~105 | Buy it now |
| STM2851 | 0.10N·m | 24VDC | CAN/CANopen/RS485 | $105~108 | Buy it now |
| STM4228 | 0.12N·m | 24VDC | CAN/CANopen/RS485 | $65~71 | Buy it now |
| STM4234 | 0.28N·m | 24VDC | CAN/CANopen/RS485 | $65~71 | Buy it now |
| STM4240 | 0.40N·m | 24VDC | CAN/CANopen/RS485 | $60~73 | Buy it now |
| STM4248 | 0.50N·m | 24VDC | CAN/CANopen/RS485 | $70~75 | Buy it now |
| STM4260 | 0.70N·m | 24VDC | CAN/CANopen/RS485 | $73~78 | Buy it now |
| STM5741 | 0.55 N·m | 24VDC | CAN/CANopen/RS485 | $63~89 | Buy it now |
| STM5756 | 1.26N·m | 24VDC | CAN/CANopen/RS485 | $65~93 | Buy it now |
| STM5776 | 1.80N·m | 24VDC | CAN/CANopen/RS485 | $71~98 | Buy it now |
| STM57B5 | 3.00N·m | 24VDC | CAN/CANopen/RS485 | $110~114 | Buy it now |
| STM8665 | 2.6 N·m | 48VDC | CAN/CANopen/RS485 | $148~152 | Buy it now |
| STM8680 | 3.7 N·m | 48VDC | CAN/CANopen/RS485 | $155~159 | Buy it now |
| STM86B8 | 8.0 N·m | 48VDC | CAN/CANopen/RS485 | $179~182 | Buy it now |
| STM86F6 | 12.0 N·m | 48VDC | CAN/CANopen/RS485 | $199~203 | Buy it now |
Price list of STM Closed-loop Motor with Drive and encoder
| Model | Torque | Voltage | Control method | Price range | Purchase Link |
| STM2832A | 0.05N·m | 24VDC | CAN/CANopen/RS485 | $135~138 | Buy it now |
| STM2851A | 0.10N·m | 24VDC | CAN/CANopen/RS485 | $138~141 | Buy it now |
| STM4228A | 0.12N·m | 24VDC | CAN/CANopen/RS485 | $118~121 | Buy it now |
| STM4234A | 0.28N·m | 24VDC | CAN/CANopen/RS485 | $118~121 | Buy it now |
| STM4240A | 0.40N·m | 24VDC | CAN/CANopen/RS485 | $118~121 | Buy it now |
| STM4248A | 0.50N·m | 24VDC | CAN/CANopen/RS485 | $120~124 | Buy it now |
| STM4260A | 0.70N·m | 24VDC | CAN/CANopen/RS485 | $126~129 | Buy it now |
| STM4228A-B | 0.12N·m | 24VDC | CAN/CANopen/RS485 | $151~155 | Buy it now |
| STM4234A-B | 0.28N·m | 24VDC | CAN/CANopen/RS485 | $151~155 | Buy it now |
| STM4240A-B | 0.40N·m | 24VDC | CAN/CANopen/RS485 | $151~155 | Buy it now |
| STM4248A-B | 0.50N·m | 24VDC | CAN/CANopen/RS485 | $154~157 | Buy it now |
| STM4260A-B | 0.70N·m | 24VDC | CAN/CANopen/RS485 | $159~163 | Buy it now |
| STM5741A | 0.55 N·m | 24VDC | CAN/CANopen/RS485 | $129 | Buy it now |
| STM5756A | 1.26N·m | 24VDC | CAN/CANopen/RS485 | $135 | Buy it now |
| STM5776A | 1.80N·m | 24VDC | CAN/CANopen/RS485 | $137 | Buy it now |
| STM57B5A | 3.00N·m | 24VDC | CAN/CANopen/RS485 | $110~114 | Buy it now |
| STM8665A | 2.6 N·m | 48VDC | CAN/CANopen/RS485 | $160~163 | Buy it now |
| STM8680A | 3.7 N·m | 48VDC | CAN/CANopen/RS485 | $173~176 | Buy it now |
| STM86B8A | 8.0 N·m | 48VDC | CAN/CANopen/RS485 | $191~195 | Buy it now |
| STM86F6A | 12.0 N·m | 48VDC | CAN/CANopen/RS485 | $210~213 | Buy it now |
| STM8665A-B | 2.6 N·m | 48VDC | CANopen | $243 | Buy it now |
| STM8680A-B | 3.7 N·m | 48VDC | CANopen | $253 | Buy it now |
| STM86B8A-B | 8.0 N·m | 48VDC | CANopen | $275 | Buy it now |
| STM86F6A-B | 12.0 N·m | 48VDC | CANopen | $294 | Buy it now |
Price list of STM Fully Closed-loop Motor with Drive and encoder
| Model | Torque | Voltage | Control method | Price range | Purchase Link |
| STM2033B | 0.018 N·m | 24VDC | CANopen/RS485 | $113 | Buy it now |
| STM2038B | 0.038 N·m | 24VDC | CANopen/RS485 | $114 | Buy it now |
| STM2048B | 0.045 N·m | 24VDC | CANopen/RS485 | $115 | Buy it now |
| STM2832B | 0.05N·m | 24VDC | CANopen/RS485 | $140 | Buy it now |
| STM2851B | 0.10N·m | 24VDC | CANopen/RS485 | $174 | Buy it now |
| STM3528B | 0.16 N·m | 24VDC | CANopen/RS485 | $127 | Buy it now |
| STM3534B | 0.18 N·m | 24VDC | CANopen/RS485 | $124 | Buy it now |
| STM3548B | 0.40 N·m | 24VDC | CANopen/RS485 | $127 | Buy it now |
| STM3554B | 0.45 N·m | 24VDC | CANopen/RS485 | $134 | Buy it now |
| STM4234B | 0.28N·m | 24VDC | CANopen/RS485 | $123 | Buy it now |
| STM4240B | 0.40N·m | 24VDC | CANopen/RS485 | $123 | Buy it now |
| STM4248B | 0.50N·m | 24VDC | CANopen/RS485 | $125 | Buy it now |
| STM4260B | 0.70N·m | 24VDC | CANopen/RS485 | $134 | Buy it now |
| STM4234B-B | 0.28N·m | 24VDC | CANopen/RS485 | $160 | Buy it now |
| STM4240B-B | 0.40N·m | 24VDC | CANopen/RS485 | $160 | Buy it now |
| STM4248B-B | 0.50N·m | 24VDC | CANopen/RS485 | $158 | Buy it now |
| STM4260B-B | 0.70N·m | 24VDC | CANopen/RS485 | $167 | Buy it now |
| STM5741B | 0.55 N·m | 24VDC | CANopen/RS485 | $149 | Buy it now |
| STM5756B | 1.26N·m | 24VDC | CANopen/RS485 | $155 | Buy it now |
| STM5776B | 1.80N·m | 24VDC | CANopen/RS485 | $157 |





























