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Andres BlancoThe thruster have arrived correctly. I tested them on the ROV and we are very happy with the result. The epoxy interior finish is very good and the power of the motors in relation to the size is quite good.
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Gregoire LangeThe cooperation between Changzhou Vic-Tech Motor Tech and our company was just great. Good understanding of our needs, great willing to solve our problems. I recommend !
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David MoleveltProfessional and clear communication. Order was shipped in time. Counter connectors where added to the shipment. Driver works like we agreed !
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Buildstorm Private LimitedThe product works as expected, it was packed nicely. Seller responds very quickly and helps in making a buying decision. They are ready to customize the product for you.
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Ashley GriffinShipment was received very quickly. Product was well protected by packaging. Company rep was cordial and kind. A Plus rating!
20BY45 20mm Permanent Magnet Stepper Motor 12V 3000rpm

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xProduct Details
Phase | 2 | Type | Permanent Magnet |
---|---|---|---|
Current | 0.12A | Voltage | 12V |
Rotation | CW/CCW | Resistance | 100Ω±7% |
Speed | 3000rpm | Weight | 28g |
Stepping Angle | 18degrees | Max Starting Frequency | 700 PPS Min. (AT 12.0 V DC) |
Max Slewing Frequency | 1000 PPS Min. (AT 12.0 V DC) | Pull In Torque | 18 Gf-cm Min. (AT 200PPS , 12.0V DC) |
Pull Out Torque | 23.5 Gf-cm Min. (AT 200 PPS , 12.0V DC) | Insulation Strength | 600V AC 300mA FOR ONE SECOND |
Insulation Resistance | 100MΩ (DC 500V) | ||
Highlight | 20mm permanent magnet stepper motor,12V micro stepper motor,3000rpm stepper motor with warranty |
Product Description
20BY45 20mm Permanent Magnet Stepper Motor for Medical Equipment & Surveillance Cameras


Product Specifications
Attribute | Value |
---|---|
Phase | 2 |
Type | Permanent Magnet |
Current / Phase | 0.12A |
Voltage | 12V |
Rotation | CW/CCW |
Resistance | 100Ω±7% |
Speed | 3000rpm |
Weight | 28g |
Product Description
The 20BY45-142 stepping motor features a 20mm diameter with an 18-degree stepping angle. Manufactured using precision molds, this motor offers superior performance with stable rotation, minimal positioning torque, and high efficiency compared to similar products.
All metal components, including motor casings, undergo environmentally friendly plating treatment, resulting in an exquisite appearance suitable for demanding environments.
Key Features
- Precision engineered for medical equipment and automatic door lock applications
- Standard light input connection with customizable options (FPC cable, PCB, etc.)
- Compatible drive systems available to meet specific requirements
- 10+ years of micro motor design and manufacturing expertise
- Custom development available for specialized applications


Technical Specifications
Model | 20BY45-142 |
Max. Starting Frequency | 700 PPS min. (AT 12.0 V DC) |
Max. Slewing Frequency | 1000 PPS min. (AT 12.0 V DC) |
Pull In Torque | 18 gf-cm min. (AT 200PPS, 12.0V DC) |
Pull Out Torque | 23.5 gf-cm min. (AT 200 PPS, 12.0V DC) |
Insulation Class | CLASS E for coils |
Insulation Strength | 600V AC 300mA for one second |
Insulation Resistance | 100MΩ (DC 500V) |
Operating Temperature | -15°C to +55°C |
OEM & ODM Service | Available |
Shaft Types
Standard shaft options include (custom configurations available):
- Round Type: DIA 3mm, 4mm, 5mm
- D-cut Type: DIA3-D2.5, DIA4-D3
- Screw Type: M3, M4, M5 series
- Trape Type
- I-cut Type: DIA3-I2, DIA4-I3
- Other Types: Shaft with hole, etc.

Fixture Cover Types
Standard models shown (special sizes customizable)

Wire Connection Options
Multiple input methods available (customizable to requirements):
- Pin type
- FPC
- PCB
- Lead wire


About Our Company
Changzhou Vic-Tech Motor Technology Ltd. is a professional manufacturer and research institution specializing in brushless motor development, motor application solutions, and motor processing. Located in Changzhou, Jiangsu Province (known as the 'City of Chinese Micro Motor'), we benefit from excellent transportation links and proximity to major cities.
Our team includes experienced engineers and electric experts capable of designing new products and providing customized solutions. With four manufacturing facilities in Shenzhen, Changzhou, and Dongguan, we produce stepper motors, permanent-magnet motors, micro motors, and DC motors, all ISO9001:2008 certified.
Frequently Asked Questions
1. How about the quality of your products?
We maintain high-quality standards with positive global feedback. Our product complaint rate remains below 1%, and we provide immediate support for any issues during the guarantee period.
2. Are you a manufacturer?
Yes, we are a direct manufacturer with our own factory in Changzhou, China. We specialize in producing and exporting high-quality micro motors and welcome your inquiries.


Customer needs drive our innovation - contact us today to discuss your requirements!
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