Import 20mm 20byj Geared Stepper Motor — Buy in wholesale FOB from Supplier in China

The 20mm 20BYJ Geared Stepper Motor is a compact permanent magnet stepper motor with an integrated reduction gearbox, measuring exactly 20mm in diameter. The model designation is 20BYJ46, featuring a coil resistance of 200mΩ with a tolerance of ±7%, which determines the current draw and heat generation during operation. The motor delivers a detent torque of 21.6mN.m and operates across a starting frequency of 500 pulses per second (pps) with a response frequency reaching 900 pps, making it suitable for applications requiring incremental motion control. The operating temperature range spans from 0°C to +55°C, and the motor carries RoHS certification confirming compliance with hazardous substance restrictions.

The motor windings are designed for unipolar operation, and the gear reduction ratio is engineered to provide smoother motion with increased holding torque at the output shaft. The 20BYJ46 model uses a 4-phase construction with typical step angles of 5.625° per full step, reduced significantly through the planetary or gear train to achieve finer positioning resolution. Materials include copper windings, steel laminations for the stator, and durable plastic or metal housing depending on the specific configuration. This motor falls into the micro stepper motor category commonly used in medical devices, office equipment, and consumer electronics where space constraints are critical. The typical duty cycle is continuous, though thermal considerations may limit extended operation at maximum current.

Applications include saliva analyzers and blood analyzers in medical diagnostics, welding machines requiring precise wire feed control, intelligent security products such as electronic locks and access control systems, fiber fusion splicers for telecommunications, and various digital electronics including printers, scanners, and automated dispensing equipment. Buyers typically purchase these motors in volumes ranging from hundreds to thousands of units for OEM assembly into finished products. Trade terms commonly accept payment via T/T, L/C, Western Union, or credit card, with delivery within 15-30 working days and supply capacity reaching 10,000 units per month. Customization options for shaft length, connector types, and wire harness configurations are available through OEM and ODM services.

Changzhou Vic-tech Motor Technology Co., Ltd. is located at No.28, Shunyuan Road, Xinbei District, Changzhou, Jiangsu Province, China, with postal code 213000. The company operates from the Changzhou industrial zone, a known hub for precision motor manufacturing in eastern China. The listing indicates a trust tier of 'harbor' and shows a response rate of 0.00% with no average response hours recorded, meaning the supplier has not yet received enough interaction data for performance metrics.

The supplier specializes in micro stepper motors and geared motor solutions, with the 20BYJ46 model being a core product in their 20mm motor lineup. They offer OEM and ODM services, allowing buyers to customize shaft dimensions, connector configurations, and wire harness specifications. The listing states RoHS certification and a monthly supply ability of 10,000 units, with delivery times of 15-30 working days. The supplier does not disclose employee count, annual revenue, or specific client references in this listing.