German 
English Outrunner BLDC Motor
High Energy Density Flat BLDC Outrunner Motor from SGMADA
The special outer rotor structure of Low KV bldc outrunner motor provides higher torque and smoother operation, combined with brushless technology, it achieves excellent performance of low maintenance and low noise. With planetary gearbox, BLDC outrunner motor is more suitable for high torque and low speed application.
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What is a BLDC outrunner motor？
1.Outer rotor design
- Structural features: The rotor of bldc outrunner motor surrounds the stator to form a ring structure. The outer rotor design means that the motor can use more magnets, resulting in a greater moment of inertia.
2.Brushless technology
- Electronic commutation: Same as brushless motors, outer rotor motors use electronic controllers to achieve commutation, providing more precise and efficient current control.
Core advantages of BLDC outrunner motor
▨ High energy density
▨ Low KV – High Torque
▨ Flat Design
▨ High effiency
▨ Low Noise
Customized Outrunner BLDC Motor Options
- Housing
- Controller
- Stator
- Bearing
- Rotor
Our Products
MX-22
- Size:28 mm
- Number of pole pairs:7
- Length:26mm
- Rotor interia:0.75uNm*s²
- Weight:52g
- Ingress Protection:IP54
- Speed Constant:Custom
MX-28
- Size:36 mm
- Number of pole pairs:7
- Length:30mm
- Rotor interia:1.6uNm*s²
- Weight:90g
- Ingress Protection:IP44
- Speed Constant:Customized
MX-33
- Size:42 mm
- Number of pole pairs:7
- Length:32mm
- Rotor interia:2.7uNm*s²
- Weight:130g
- Ingress Protection:IP44
- Speed Constant:Customized
MX-42
- Size:52 mm
- Number of pole pairs:7
- Length:34mm
- Rotor interia:6.5uNm*s²
- Weight:220g
- Ingress Protection:IP44
- Speed Constant:Customized
MX-53
- Size:63 mm
- Number of pole pairs:7
- Length:37mm
- Rotor interia:8.2uNm*s²
- Weight:300g
- Ingress Protection:IP44
- Speed Constant:Custom
MX22-PG28
- Size:28 mm
- Number of pole pairs:7
- Number of phases:3
- Length:47.9 mm
- Ingress Protection:IP44
- Shaft diameter:6
MX28-PG36
- Size:28 mm
- Number of pole pairs:7
- Number of phases:3
- Length:47.9 mm
- Ingress Protection:IP44
- Shaft diameter:6
MX33-PG42
- Size:42 mm
- Number of pole pairs:7
- Number of phases:3
- Length:76.1 mm
- Ingress Protection:IP44
- Shaft diameter:8
MX42-PG52
- Size:63 mm
- Number of pole pairs:7
- Number of phases:3
- Length:92.1 mm
- Ingress Protection:IP44
- Shaft diameter:8
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Where We Add Value
Motor and gearbox desgin based on your requirements
SGMADA focused on designing motor and gearbox more than 20 years.
We are committed to designing products that are more efficient, more cost-effective and of more stable quality.
Our ultimate goal in designing is to serve our customers.
- Reduce costs and increase efficiency
- Reasonable structural design
- Quick response
Improvement of automation equipment
SGMADA believes that automated equipment will bring about a huge leap in production capacity.
We insist on investing 20%-30% of our annual profits in automation equipment.
Automation equipment can not only improve the production efficiency of products, but also reduce the production cost of motors and gearboxes.
ISO9001 & TS16949 strict quality management system
SGMADA has established a complete quality management system to ensure that product quality continues to meet standards.
Our quality management system follows the basic principles of IATF 16949 & ISO 9001.
- Implement strict control requirements for important and special characteristics of product
- Input customer demand, output customer satisfaction
- Focus on defect prevention
- Focus on process control
A trustworthy team means Quality
Our company culture builds a trustworthy team.
Focus on the cultivation of team values - integrity, responsibility and professionalism.
Team communication and collaboration – We encourage open communication so that everyone’s ideas and opinions can be heard.
Learning and improvement – We encourage team members to continue learning and constantly improve their professional skills.
Positive atmosphere – We believe that only a united, trustful and positive team can consistently pursue excellent product quality.
Frequently Asked Questions
1. What is the difference between BLDC outrunner motor and inner rotor motor?
The outrunner motor has an outer rotor with more magnets and a higher torque density; the inner rotor motor has an inner rotor and can provide a higher speed.
2. What is the life of a BLDC outrunner motor?
The life of a brushless outer rotor motor is usually determined by the bearing life, which is generally more than 10,000 hours.
3. What does KV of a BLDC outrunner motor stand for?
KV represents the speed of the motor per volt, in revolutions per volt (RPM/V).
4. Can SGMADA's BLDC outrunner motor be equipped with a gearbox?
Yes, SGMADA’s BLDC Outrunner motor can be equipped with a planetary gearbox and a spur gearbox.
5. Can the waterproof performance of SGMADA's BLDC outrunner motor be customized?
The waterproof performance can be customized. Through special structural design, our motor can achieve IP54 waterproof level.