20BY45-53, the motor diameter is 20mm, the motor height is 18.55mm, the ear mounting hole distance is 25mm, and the motor has a step angle of 18 degrees. Each part is made of precision molds. Therefore, compared with similar products, this product has the advantages of stable rotation, small positioning torque and high efficiency. The normal output shaft height of the motor is 9mm, and the motor outlet can be customized according to the customer's installation requirements Our team has more than 10 years of experience in the design, development and production of micro motors, so we can develop and design products according to the special needs of customers! Customer demand is the direction of our efforts, please feel free to contact

PRODUCT NAME	20MM MICRO STEPPER MOTOR
MODEL	20BY45-53
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 RESISTENCE	100MΩ (DC 500V)
OPERATING TEMPERATURE RANGE	-15~+55 ℃
OEM & ODM SERVICE	AVAILABLE

Motor’s design can be adjusted based on customer’s requirement including: Motor’s diameter: we have 6mm, 8mm, 10mm, 15mm and 20 mm diameter motor Coil resistance/ rated voltage: coil resistance is adjustable, and with higher resistance, motor’s rated voltage is higher. Bracket design/ lead screw length: if customer want the bracket to be longer/short, with special design such as mounting holes, it’s adjustable. PCB + cables + connector: PCB’s design, cable length and connector pitch are all adjustable, they can be replaced into FPC if customers require.Lead time for samples: Standard motors in stock: within 3 days Standard motors not in stock: within 15 days Customized products: About 25~30 days (based on complexity of customization) Lead time for building a new mold: generally about 45 days Lead time for mass production: based on order quantity Packaging: Samples are packed in foam sponge with a paper box, shipped by express Mass production, motors are packed in corrugated cartons with transparent film outside. (shipping by air) If shipped by sea, product will be packed on palletsOn samples and air shipping, we use Fedex/TNT/UPS/DHL. (5~12 days for express service) For sea shipping, we use our shipping agent, and ship from Shanghai port. (45~70 days for sea shipping)1.Are you a manufacturer? Yes, we are a manufacture, and we produces mainly stepper motors. 2.Where is your factory location? Can we visit your factory? Our factory is located in Changzhou, Jiangsu. Yes, you are very welcome to visit us. 3.Can you provide free samples? No, we don’t provide free samples. Customers won’t treat free samples fairly. 4.Who pays for shipping cost? Can I use my shipping account? Customers pay for shipping cost. We will quote you shipping cost. If you think you have cheaper/more convenient shipping method, we can use you shipping account. 5.What’s you MOQ? Can I order one motor? We don’t have MOQ, and you can order only one piece sample. But we recommend you to order a little bit more, just in case the motor is damaged during your testing, and you can have a back-up. 6.We are developing a new project, do you provide customization service? Can we sign a NDA contract? We have over 20 years of experience in stepper motor industry. We have developed many projects,  we can provide full set customization from design drawing to production. We are confident we can give you few advice/suggestions for your stepper motor project. If you are worrying about confidential issues, yes, we can sign a NDA contract. 7.Do you sell drivers? Do you produce them? Yes, we do sell drivers. They are only suitable for temporary sample test, not suitable for mass production. We do not produce drivers, we only produce stepper motorsMotor’s speed is determined by driving frequency, and it has nothing to do with load (unless it’s losing steps). Due to high precision speed control of stepper motors, with a driver controlled stepping you can achieve very precise positioning and speed control. For this reason, stepper motors are the motor of choice for many precision motion control applications. For linear stepper motors, they are widely used in: Medical device Camera equipment Valve control system Test instrument 3D printing Textile machinery Industrial control Air conditioning CNC machine and so on