The KM-28A380/385 is a rugged DC gear motor that runs at 12 V, rated at 3 kg⋅cm torque at 666rpm, and runs smoothly and quietly under load. Its high stall torque of 18.98kg⋅cm ensures strong starting capability, making it ideal for applications such as seed mixers, blenders, pepper grinders, and electric shoe brushes. The motor supports custom voltages, gear ratios, and shaft designs, providing the flexibility needed to seamlessly integrate with a variety of systems.
| Gear Ratio | 5.7 | 12.9 | 29.3 | 41.8 | 66.7 | 152 | 273 | 345 | 620 | |||
| Gearbox Length | mm | 24.5 | 24.5 | 24.5 | 27 | 27 | 29.5 | 32 | 32 | 34.5 | ||
| 24V | Rated Torque | kg⋅cm | 0.5 | 1 | 2 | 3 | 4 | 5 | 8 | – | – | |
| Rated Speed | rpm | 1572 | 698 | 308 | 208 | 137 | 64 | 35.8 | – | – | ||
| Stall Torque | kg⋅cm | 2.7 | 5.5 | 11.2 | 14.4 | 23.3 | 47.1 | 76 | – | – | ||
| Max Inst. Torque | kg⋅cm | 1.5 | 2.0 | 2.0 | 5 | 5 | 6.5 | 8 | 8 | 9 | ||
| Motor Model | Voltage | No Load | At Maximum Efficiency | Stall | |||||
| Current | Speed | Current | Speed | Torque | Output | Current | Torque | ||
| V | A | rpm | A | rpm | g⋅cm | W | A | g⋅cm | |
| RS-385SA-15123 | 24 | 0.12 | 11000 | 0.59 | 9151 | 98 | 9.2 | 2.92 | 583.02 |
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Yes, we provide the whole brushless motor solutions including the controller.
You are very welcome to visit us at any time, but please give us a few days’ notice so that we can arrange the schedule and plan the visit.
We do not currently have any subsidiaries or agents, but we are open to future cooperation. We are always looking for partnerships with companies and individuals around the world who are willing to become our local agents, allowing us to serve our customers more closely and efficiently.
We usually use two types of brushes: metal brushes and carbon brushes. The choice of brush depends on several factors, including the speed, current carrying capacity, and life expectancy of the motor. For smaller motors, we usually choose metal brushes; For larger motors, we tend to choose carbon brushes. Compared to metal brushes, carbon brushes have a longer service life and can significantly reduce the wear on the commutator.
The service life of a motor will vary significantly depending on the model, material, and operating environment, including temperature, humidity, duty cycle, input power, and how the motor is coupled to the load. We usually need to ensure that the change of current, speed and torque of the motor in the running state is kept within the range of ±30% of the initial set value When we do the electrical life test.
If you can specify the specific requirements and working conditions, we will conduct a detailed assessment to determine which motor model best meets your needs.
