 |
| Quantity: | |
|---|---|
D28
Ritscher
A Permanent Magnet DC Motor (PMDC Motor) is a type of brushed DC motor that uses permanent magnets (instead of field windings) to create the stator's magnetic field. This design simplifies construction, improves efficiency, and provides reliable performance in a wide range of applications.
✔ Permanent Magnet Stator – Eliminates the need for field windings, reducing power loss and heat generation.
✔ Brushed Commutation – Uses carbon brushes and a mechanical commutator to switch current direction in the rotor (armature).
✔ High Starting Torque – Delivers strong torque at low speeds, making it ideal for applications requiring quick acceleration.
✔ Linear Speed-Torque Characteristics – Speed can be easily controlled by varying the input voltage.
✔ Compact & Lightweight – Simpler construction compared to wound-field DC motors.
Standard Brushed PMDC – Most common type, used in automotive and industrial applications.
Coreless PMDC – Laminated rotor reduces inertia for high-speed applications (e.g., medical devices, robotics).
Ironless Rotor PMDC – No iron in the rotor, minimizing cogging and improving efficiency (used in precision instruments).
Automotive Systems (Power windows, windshield wipers, seat adjusters)
Consumer Electronics (Toys, electric toothbrushes, small appliances)
Industrial Equipment (Conveyors, actuators, CNC machines)
Medical Devices (Infusion pumps, surgical tools)
Robotics & Drones (Small servo motors, UAV propulsion)
✅ Higher efficiency (no field winding losses)
✅ Simpler construction & lower maintenance
✅ Better speed regulation
✅ More compact and lightweight
❌ Brushes wear out over time (requires periodic replacement)
❌ Limited field weakening capability (speed control range is narrower than wound-field motors)
❌ Permanent magnets can demagnetize under extreme heat or overload
| Feature | PMDC Motor | BLDC Motor |
|---|---|---|
| Commutation | Brushes & commutator | Electronic (no brushes) |
| Maintenance | Higher (brush wear) | Lower (no brushes) |
| Efficiency | Good (~75-85%) | Excellent (~90-95%) |
| Cost | Lower | Higher (due to controller) |
PMDC motors are a cost-effective, reliable solution for applications requiring simple speed control, high starting torque, and compact size. While brushed designs require maintenance, their simplicity and performance keep them relevant in many industries.
| Model | Voltage | Speed with no load | Current with no load | output power | Torque | ||||
| F28(s)-18165RC | 12V | 11670rmp | 0.12A | 4.4w | 43.9gf.cm |
Typical Market: Products for Industry and commerce uses
DC Motor Techinical Parameters:
| Model | Voltage | No Load | Maximum efficience point | |||||
| Rated Voltage | Speed | Current | Speed | Current | Torque | Output Power | ||
| V | rpm | A | rpm | A | g.cm | N.m | W | |
| HLRT8B7WA-7509 | 18 | 21895 | 4.88 | 18652 | 28.07 | 1965 | 192.65 | 376.5 |
| HLRT8B7WA-A011 | 18 | 19410 | 4.63 | 16362 | 24.83 | 1948.8 | 191.06 | 327.6 |
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.
A Permanent Magnet DC Motor (PMDC Motor) is a type of brushed DC motor that uses permanent magnets (instead of field windings) to create the stator's magnetic field. This design simplifies construction, improves efficiency, and provides reliable performance in a wide range of applications.
✔ Permanent Magnet Stator – Eliminates the need for field windings, reducing power loss and heat generation.
✔ Brushed Commutation – Uses carbon brushes and a mechanical commutator to switch current direction in the rotor (armature).
✔ High Starting Torque – Delivers strong torque at low speeds, making it ideal for applications requiring quick acceleration.
✔ Linear Speed-Torque Characteristics – Speed can be easily controlled by varying the input voltage.
✔ Compact & Lightweight – Simpler construction compared to wound-field DC motors.
Standard Brushed PMDC – Most common type, used in automotive and industrial applications.
Coreless PMDC – Laminated rotor reduces inertia for high-speed applications (e.g., medical devices, robotics).
Ironless Rotor PMDC – No iron in the rotor, minimizing cogging and improving efficiency (used in precision instruments).
Automotive Systems (Power windows, windshield wipers, seat adjusters)
Consumer Electronics (Toys, electric toothbrushes, small appliances)
Industrial Equipment (Conveyors, actuators, CNC machines)
Medical Devices (Infusion pumps, surgical tools)
Robotics & Drones (Small servo motors, UAV propulsion)
✅ Higher efficiency (no field winding losses)
✅ Simpler construction & lower maintenance
✅ Better speed regulation
✅ More compact and lightweight
❌ Brushes wear out over time (requires periodic replacement)
❌ Limited field weakening capability (speed control range is narrower than wound-field motors)
❌ Permanent magnets can demagnetize under extreme heat or overload
| Feature | PMDC Motor | BLDC Motor |
|---|---|---|
| Commutation | Brushes & commutator | Electronic (no brushes) |
| Maintenance | Higher (brush wear) | Lower (no brushes) |
| Efficiency | Good (~75-85%) | Excellent (~90-95%) |
| Cost | Lower | Higher (due to controller) |
PMDC motors are a cost-effective, reliable solution for applications requiring simple speed control, high starting torque, and compact size. While brushed designs require maintenance, their simplicity and performance keep them relevant in many industries.
| Model | Voltage | Speed with no load | Current with no load | output power | Torque | ||||
| F28(s)-18165RC | 12V | 11670rmp | 0.12A | 4.4w | 43.9gf.cm |
Typical Market: Products for Industry and commerce uses
DC Motor Techinical Parameters:
| Model | Voltage | No Load | Maximum efficience point | |||||
| Rated Voltage | Speed | Current | Speed | Current | Torque | Output Power | ||
| V | rpm | A | rpm | A | g.cm | N.m | W | |
| HLRT8B7WA-7509 | 18 | 21895 | 4.88 | 18652 | 28.07 | 1965 | 192.65 | 376.5 |
| HLRT8B7WA-A011 | 18 | 19410 | 4.63 | 16362 | 24.83 | 1948.8 | 191.06 | 327.6 |
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.
