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.
Q: What kind brushes do you use in the motor?
A: There are two kind brushes we normally use: the metal brush and carbon brush. We choose based on the speed, current and lifetime requirements. For quite small motors, we only have metal brushes while for big ones we only have carbon brushes. Compared with metal brushes, the lifetime of carbon brushes are longer since it will reduce the wear on the commutator. But for low speed motor, the carbon dust might not be able to burn in time which will cause failure too.