Boxin · Hengzhen · Botrust
Precision Manufacturing・Powering the World
BL3650A03-30V24J
The BL3650A03-30V24J is a compact, integrated 24 V DC brushless motor with a reduction ratio of 1:30, delivering an output torque of approximately 0.2–0.3 N·m at a speed of about 100–130 rpm. Featuring a small footprint, low noise, and support for closed-loop control, it is widely used in light-load applications such as smart door locks, electric valves, and small automation equipment.
- Product Description
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I. Product Overview
The BL3650A03-30V24J is a compact brushless DC geared motor with an outer diameter of 36 mm and a body length of 50 mm. It features an integrated worm‑gear or planetary gearbox and is specifically designed for light‑load automation applications. With its small footprint, low noise, and long service life, it is widely used in smart devices and compact industrial equipment.
II. Explanation of Model Designations
Part Meaning BL Brushless DC motor 3650 Motor stator outer diameter: 36 mm; stator length: 50 mm. A03 Rated power: 3 W (or basic torque class, the industry‑standard designation) 30 Reduction ratio 1:30 (worm gear / planetary gearbox version) V24 Rated operating voltage: DC 24 V J Built-in Hall sensor/encoder feedback (supports closed-loop speed control)
III. Core Technical Parameters (Industry-Standard Reference Values)
Parameter item Typical value Explanation Rated voltage DC24V Compatible with a wide input voltage range of 18–28 V. Rated power 3W Motor rated power; brushless design efficiency ≥ 70% No-load speed of the main body 3000-4000rpm After deceleration, the output speed is approximately 100–130 rpm. Rated output torque Approximately 0.2–0.3 N·m 1:30 reduction gear ratio, optimized for low-speed, low-torque applications. Shaft diameter 4 mm (gearbox output shaft) Common specifications; custom options available. Protection rating IP54 Dustproof and splash-proof, suitable for light industrial applications. Operating temperature -10℃~+50℃ Suitable for typical indoor environments. Lifespan >10,000 hours No carbon brush wear, low maintenance costs. Insulation class Class B Temperature-resistant up to 130°C, suitable for continuous light-load operation.
IV. Structure and Core Features
- Dual-version design
- Available in two configurations: a brushless motor unit and an integrated motor‑gearbox assembly. The gearbox features a worm‑gear or planetary design, offering a compact footprint ideal for applications with limited installation space.
- Performance Advantages of Brushless Motors
- No carbon brush wear, operating noise ≤ 50 dB, long service life, smooth speed regulation, and excellent long-term operational stability.
- Built-in feedback feature
- The version with a multi-color wire harness supports Hall‑effect and encoder feedback, enabling closed-loop control, reversible speed regulation, and position feedback, thus meeting the requirements of automated control systems.
- Gearbox Characteristics
- 1:30 Reduction ratio design, with a transmission efficiency of approximately 70–80%, low backlash, and smooth operation, enabling torque amplification in a compact footprint.
V. Typical Application Scenarios
- Small automated devices: electric valves, smart door locks, vending machines
- Smart Home: Electric Curtains, Compact Lifting Mechanisms, and Fresh Air Systems
- Medical devices: small pump bodies, instrument adjustment mechanisms
- Consumer Electronics: Small Home Appliances, Compact Power Tools
VI. Usage and Selection Recommendations
- Driver Compatibility: Requires a 24V DC brushless motor driver and supports Hall‑effect sensor feedback.
- Load matching: The larger the reduction ratio, the greater the output torque, but the lower the speed; therefore, select the model based on the load’s speed requirements.
- Installation method: The reducer’s output shaft is mounted via a standard flange and supports multi‑directional installation in both horizontal and vertical orientations.
- Precautions: Avoid prolonged stalled‑rotor operation, as this may cause the motor to overheat and burn out.
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