Audited Supplier
Connection mode
| Motor model | Power supply | Number of phases | Number of poles | Output power | Current | Reference speed |
| Model | Vot | Phase | Poles | Output | Current | Speed |
| 139BLDC-250W | AC220V | 3 | 10 | 250W | 1.05A | 1000rpm |
| 139BLDC-500W | AC220V | 3 | 10 | 500W | 2.1A | 1000rpm |
| 139BLDC-750W | AC220V | 3 | 10 | 750W | 3.3A | 950rpm |
| Type | L | B | C | D | E | F | G | DD | d | H |
| 139BLDC-250W | 134 | 35 | 86 | 16.5 | 12 | M8 | 39 | 190 | 12 | 10.5 |
| 139BLDC-500W | 149 | |||||||||
| 139BLDC-750W | 159 |
| Number | Colour | specification |
| 1 | RED | AC220V (L) |
| 2 | BLK | AC220V (N) |
| 3 | YEL/GRN | PE |
| Number | Colour | specification |
| 1 | BLU | +5V |
| 2 | GRN | RS485 A |
| 3 | WHT | RS485 B |
| 4 | YEL | GND |
| Number | Colour | specification |
| 1 | BLU | +10V |
| 2 | WHT | VSP |
| 3 | YEL | GND |
Application areas: air source heat pump, axial flow fan, fresh air system, household air conditioner, commercial air conditioner;
Power supply: AC220V/50Hz, 10 poles, output power 100-750W;
Use low-noise ball bearings such as NSK and TPI;
Roll plate structure, adjustable installation size, meet various use environments, motor protection level IP54;
Adopt Hall-free FOC control technology, low noise and vibration, high motor efficiency and reliability;
Controller speed control interface: a (0 ~ 10V analog input) b (RS485 communication interface);
Unique motor controller integrated design, easy installation and plug-and-play;
Stepless speed regulation, constant torque, constant speed, constant air volume;
Changzhou Joinbrain Motor Co., Ltd. is located in the renowned motor manufacturing hub of China-Wujin Economic Development Zone in Changzhou. With a production area of over 8, 000 square meters, the company specializes in developing and manufacturing motors for central air conditioning fans, air energy systems, water pumps, evaporative air coolers, livestock fans, permanent magnet brushless motors, cooling towers, and air compressor fans, among others. With an annual production capacity exceeding one million units, we can also design and manufacture custom motors to meet specific client requirements. The company has been recognized as a National High-Tech Enterprise and a Changzhou Science and Technology Enterprise, and our products are CCC and CE certified.
Our team includes experts in motor and motor control technologies, providing us with strong technical capabilities and a commitment to continuous innovation. Equipped with advanced production and testing facilities, we follow stringent processing methods and testing protocols to ensure a reliable product quality assurance system. Our product quality is stable and dependable.
Our mission is to build trust through integrity and prioritize quality. To ensure product excellence and refine quality management, we have established a quality management system, strictly following ISO9001: 2015 standards in every phase of service-pre-sale, in-sale, and post-sale-to fully meet customer needs.
Quality Policy:
To continuously improve, delivering products that satisfy our customers.
Adhering to the business philosophy of "Innovation and Integrity, " we strive to create high-quality products and are dedicated to building sincere partnerships for mutual growth and success with clients from all sectors.
Q1: Are you factory?
A: Yes, we have been in designing and providing excellent motors for customers. Our factory production is all under ISO9001 quality management system.
Q2: How long you could prepare samples?
A: Normally 3 days if we have the sample in hand. If customized one, about a week around
Q3: How about batch order production?
A: Normally 15-30 days, the customized or newly developed products may take more half month.
Q4: Do you inspect the finished products?
A: Yes, we do inspection according to ISO9001 standard and ruled by our experienced QC staff.
Q5: What advantage do you have?
A: For the motors, we have long enough of 18months guarantee, and for the service, we offer 24 hours technical support and barrier-free communication.
