Q: How to choose a motor to match my machine? A: Please offer the key parameters of the motor. Here are some important specifications we need : holding torque, physical size (diameter ,length etc.), voltage, current etc. Feel free to contact us and send the information, we are very glad to help you when you are confused in selecting. Q: If I need a special motor , can you manufacture? A: Certainly. If you want to replace a motor in an existing application,please send us a drawing or sample so that we can help you to find a suitable one. Or, you can contact us and describe your application, our engineers will help you to develop a new drawing for you base on your requirements. Q: Can I order samples first? A: Yes.We have many standard models in stock. If you would like to test a sample first, we are glad to send it. If you need customized motor please let us know.