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BL77
Ritscher
The BL77 is an advanced brushless DC (BLDC) motor engineered for superior efficiency, precision, and durability. Designed for industrial automation, robotics, medical devices, and aerospace applications, it delivers high torque density, smooth operation, and maintenance-free performance.
✔ Ultra-Efficient Design – Up to 92% efficiency with minimal energy loss.
✔ Sensorless & Sensored Options – Supports Hall-effect sensors for precise control or sensorless operation for cost-sensitiveapplications.
✔ High Torque-to-Size Ratio – Compact yet powerful, ideal for space-constrained systems.
✔ Wide Speed Range – 500–10,000 RPM (customizable for specific needs).
✔ Low Noise & Vibration – Optimized magnetic circuit for ultra-smooth rotation.
✔ Long Lifespan – No brushes to wear out, reducing maintenance needs.
✔ Smart Control Compatibility – Works seamlessly with PWM, CAN bus, and EtherCAT drives.
Motor Type: 3-Phase Brushless DC (BLDC)
Power Range: 50W–1.5kW
Voltage: 24V/48V DC (custom voltages up to 310V available)
Peak Torque: 0.2–15 Nm (depends on model)
Continuous Current: 2A–20A
Frame Size: 77mm diameter (NEMA 23/34 flange options)
Protection Class: IP54 standard (IP67 optional)
Thermal Management: Class H insulation (180°C rated)
Feedback Options: Incremental encoder, resolver, or Hall sensors
Certifications: CE, RoHS, UL (ISO 9001 manufacturing)
Main Technical Parameters:
Vol./Freq: 110-230V AC/50-60Hz
Rated Speed: 3000-6000RPM
Rated Power:80-110W
Insulation Class: B F H
Typical Application:Heat exchanger,Water heater ,Compression pump,Burner.
✅ Industrial Robots – Articulated arms, CNC machinery
✅ Medical Devices – Surgical robots, MRI-compatible systems
✅ Aerospace & Defense – UAV actuators, satellite mechanisms
✅ Electric Vehicles – Auxiliary pumps, cooling fans
✅ High-End Automation – Pick-and-place systems, laser cutters
Maintenance-Free – No brushes = no carbon dust or commutator wear.
Precision Control – Near-zero torque ripple for smooth motion.
Rugged Construction – Anodized aluminum housing, stainless steel shafts.
Customization Friendly – Modify windings, connectors, or firmware.
| Type | Voltage Range(V) | Rated Voltage (V) | Speed （RPM) | Current （A） | Speed （RPM) | Current （A） | P（W） | Max Eff.(%) |
| BL77703-01 | 210-230/AC | 220/AC | 5000 | 0.2 | 3000 | 0.48 | 80 | 77 |
| BL77706-01 | 220-250/AC | 230/AC | 7000 | 0.3 | 6000 | 0.8 | 110 | 76 |
| BL77603-01 | 90-120/AC | 110/AC | 5000 | 0.4 | 3000 | 1 | 80 | 77 |
ABOUT US
Ritscher group was set up in 2006.we always focus on micro-motors for household electrical appliance and industry appliance since setting up.currently we have two professional micro-motor factories in China which severally located in Ningbo city and Foshan city.it has an area of 25,000 square meters plants and more than 300 employees, annual output is 3 million pcs and has 5 million pcs annual producing capacity.after several years development,we had built a great reputation in the market and got more and more customers' trust in the world.
We started from shaded pole motors at beginning, up to now,our product included of shaded pole motors,synchronous motors,stepping motors ,capacitor motors, BLDC motors, DC motors and compressors. Our product are widely used for making refrigerators, freezers, micro-wave ovens, air warmers, air exhausters, ventilators,ovens, air filter, massage machines and many other equipments.
As a realiable quality guaranty,Ritscher has complete R&D departement,QC department,producing department,purchase department etc. has perfect producing equipment like Aluminum diecasting, Zinc diecasting, Sheet metal stamping, Plastic injection molding etc. also test/ detection device like multiplex temp measuring device, performance parameter inspection device, Phenol peptide solution pinhole tester,Anechoic room etc.
Endeavoring to provide the best product and service to customers,we always do the most effort to become an outstanding manufacturer of micro motors.
Ritscher is always willing to establish sincere business relationship with friends from all over the world.
Welcome contact with us!
Take ritscher ,enjoy modern life!
Our company FAQ for you
(1) Q: What kind motors you can provide?
A:For now,we mainly provide Kitchen Hood Motor,DC Motor,Gear Motor,Fan Motor Refrigerator Motor,
Hair Dryer Motor Blender Motor Mixer Motor,Shade Pole Motor,Capacitor Motor,BLDC Motor PMDC Motor,
Synchronous Motor,Stepping Motor etc.
(2) Q: Is it possible to visit your factory
A: Sure. But please kindly keep us posted a few days in advance. We need to check our
schedule to see if we are available then.
(3) Q: Can I get some samples
A: It depends. If only a few samples for personal use or replacement, I am afraid it will
be difficult for us to provide, because all of our motors are custom made and no stock
available if there is no further needs. If just sample testing before the official order and
our MOQ, price and other terms are acceptable, we'd love to provide samples.
(4) Q: Is there a MOQ for your motors?
A: Yes. The MOQ is between 1000~10,000pcs for different models after sample approval.
But it's also okay for us to accept smaller lots like a few dozens, hundreds or thousands
For the initial 3 orders after sample approval.For samples, there is no MOQ requirement.
But the less the better (like no more than 5pcs) on condition that the quantity is enough in
case any changes needed after initial testing.
The BL77 is an advanced brushless DC (BLDC) motor engineered for superior efficiency, precision, and durability. Designed for industrial automation, robotics, medical devices, and aerospace applications, it delivers high torque density, smooth operation, and maintenance-free performance.
✔ Ultra-Efficient Design – Up to 92% efficiency with minimal energy loss.
✔ Sensorless & Sensored Options – Supports Hall-effect sensors for precise control or sensorless operation for cost-sensitiveapplications.
✔ High Torque-to-Size Ratio – Compact yet powerful, ideal for space-constrained systems.
✔ Wide Speed Range – 500–10,000 RPM (customizable for specific needs).
✔ Low Noise & Vibration – Optimized magnetic circuit for ultra-smooth rotation.
✔ Long Lifespan – No brushes to wear out, reducing maintenance needs.
✔ Smart Control Compatibility – Works seamlessly with PWM, CAN bus, and EtherCAT drives.
Motor Type: 3-Phase Brushless DC (BLDC)
Power Range: 50W–1.5kW
Voltage: 24V/48V DC (custom voltages up to 310V available)
Peak Torque: 0.2–15 Nm (depends on model)
Continuous Current: 2A–20A
Frame Size: 77mm diameter (NEMA 23/34 flange options)
Protection Class: IP54 standard (IP67 optional)
Thermal Management: Class H insulation (180°C rated)
Feedback Options: Incremental encoder, resolver, or Hall sensors
Certifications: CE, RoHS, UL (ISO 9001 manufacturing)
Main Technical Parameters:
Vol./Freq: 110-230V AC/50-60Hz
Rated Speed: 3000-6000RPM
Rated Power:80-110W
Insulation Class: B F H
Typical Application:Heat exchanger,Water heater ,Compression pump,Burner.
✅ Industrial Robots – Articulated arms, CNC machinery
✅ Medical Devices – Surgical robots, MRI-compatible systems
✅ Aerospace & Defense – UAV actuators, satellite mechanisms
✅ Electric Vehicles – Auxiliary pumps, cooling fans
✅ High-End Automation – Pick-and-place systems, laser cutters
Maintenance-Free – No brushes = no carbon dust or commutator wear.
Precision Control – Near-zero torque ripple for smooth motion.
Rugged Construction – Anodized aluminum housing, stainless steel shafts.
Customization Friendly – Modify windings, connectors, or firmware.
| Type | Voltage Range(V) | Rated Voltage (V) | Speed （RPM) | Current （A） | Speed （RPM) | Current （A） | P（W） | Max Eff.(%) |
| BL77703-01 | 210-230/AC | 220/AC | 5000 | 0.2 | 3000 | 0.48 | 80 | 77 |
| BL77706-01 | 220-250/AC | 230/AC | 7000 | 0.3 | 6000 | 0.8 | 110 | 76 |
| BL77603-01 | 90-120/AC | 110/AC | 5000 | 0.4 | 3000 | 1 | 80 | 77 |
ABOUT US
Ritscher group was set up in 2006.we always focus on micro-motors for household electrical appliance and industry appliance since setting up.currently we have two professional micro-motor factories in China which severally located in Ningbo city and Foshan city.it has an area of 25,000 square meters plants and more than 300 employees, annual output is 3 million pcs and has 5 million pcs annual producing capacity.after several years development,we had built a great reputation in the market and got more and more customers' trust in the world.
We started from shaded pole motors at beginning, up to now,our product included of shaded pole motors,synchronous motors,stepping motors ,capacitor motors, BLDC motors, DC motors and compressors. Our product are widely used for making refrigerators, freezers, micro-wave ovens, air warmers, air exhausters, ventilators,ovens, air filter, massage machines and many other equipments.
As a realiable quality guaranty,Ritscher has complete R&D departement,QC department,producing department,purchase department etc. has perfect producing equipment like Aluminum diecasting, Zinc diecasting, Sheet metal stamping, Plastic injection molding etc. also test/ detection device like multiplex temp measuring device, performance parameter inspection device, Phenol peptide solution pinhole tester,Anechoic room etc.
Endeavoring to provide the best product and service to customers,we always do the most effort to become an outstanding manufacturer of micro motors.
Ritscher is always willing to establish sincere business relationship with friends from all over the world.
Welcome contact with us!
Take ritscher ,enjoy modern life!
Our company FAQ for you
(1) Q: What kind motors you can provide?
A:For now,we mainly provide Kitchen Hood Motor,DC Motor,Gear Motor,Fan Motor Refrigerator Motor,
Hair Dryer Motor Blender Motor Mixer Motor,Shade Pole Motor,Capacitor Motor,BLDC Motor PMDC Motor,
Synchronous Motor,Stepping Motor etc.
(2) Q: Is it possible to visit your factory
A: Sure. But please kindly keep us posted a few days in advance. We need to check our
schedule to see if we are available then.
(3) Q: Can I get some samples
A: It depends. If only a few samples for personal use or replacement, I am afraid it will
be difficult for us to provide, because all of our motors are custom made and no stock
available if there is no further needs. If just sample testing before the official order and
our MOQ, price and other terms are acceptable, we'd love to provide samples.
(4) Q: Is there a MOQ for your motors?
A: Yes. The MOQ is between 1000~10,000pcs for different models after sample approval.
But it's also okay for us to accept smaller lots like a few dozens, hundreds or thousands
For the initial 3 orders after sample approval.For samples, there is no MOQ requirement.
But the less the better (like no more than 5pcs) on condition that the quantity is enough in
case any changes needed after initial testing.
