4-inch Compact Brushless DC Hub Motor for Table Tennis & Badminton Ball Serving Machines - High Torque, Low Noise, IP65 Waterproof

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Shenzhen Jinhaixin Holdings Co., Ltd Shenzhen, China
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Product Parameters

The main parameters

Serial Number project Specification Remark
1 motor diameter 105mm (including slight deviations in tire size) Subject to the actual product
2 Rated voltage 24V
3 Rated power 250W
4 Rated speed 1800±50rpm
5 Rated current 6±0.5A
6 Maximum torque 4.8 N/M
7 Degree of phases 120°
8 Number of poles 20 poles
9 Out of the shaft Double-sided threaded shaft (mm)
10 Lead length 500mm
11 Lead terminals 3+6 waterproof head
12 Braking method Electromagnetic brake
13 steel shaft material 45cr
14 Waterproof rating IP55
15 Maximum load 100kg
16 Environmental requirements -20 to 65 degrees Celsius
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Product Details
Product Introduction
Engineered by Jinhaixin Holdings (Shenzhen), this 4-inch compact brushless DC hub motor is specifically designed for table tennis and badminton ball serving machines. With a diameter of 105mm, shaft diameter of 42mm, and dual-thread structure, it delivers high torque, low noise, and stable performance in a space-saving design. Featuring premium magnets, precision winding, and 62mm dual-end shaft output, the motor meets IP65 waterproof standards for reliable operation in demanding environments. Ideal for OEM manufacturers and sports equipment developers worldwide, it supports long-term durability, easy installation, and global after-sales technical support — all essential for competitive international exports.
Advantages and features
1. High torque output with minimal vibration for consistent ball feeding accuracy.2. IP65 waterproof rating ensures reliable performance in humid or outdoor settings.3. Dual-thread shaft design enables flexible mounting options for various machine models.4. Compact size (105mm diameter) saves space without sacrificing power.5. Designed for OEM customization and scalable production for global markets.
Application Scenario
Ideal for manufacturers of table tennis and badminton training equipment, including smart serving robots, coaching systems, and automated sports devices. Targets fitness centers, sports academies, and sports equipment distributors globally seeking durable, high-performance motors for professional-grade products.
Corporate Information
Shenzhen Jinhaixin Holdings Co., Ltd
Service Guarantee
Service Information
Address
Longgang District, Shenzhen, China
Advisory Message
Pre-sales advice
1. Connect the motor to the controller and power supply according to the wiring diagram on the controller.
2. The tire is mounted on the outside of the outer rotor hub.
3. Power cords passing through metal parts should be protected with non-metallic materials.
4. Special Note: If the motor does not move, jams, or overheats rapidly when the drive powers on the motor, the power must be disconnected and the electrical angle or drive output adjusted within three seconds to avoid motor failure.
After-sales service
Please feel free to contact me if you have any questions.
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