Changchun YuHeng Optics Co.,Ltd is a worldwide manufacturer and marketer of Rotary Encoder. We have over 20 years of experience in the field of encoders. Rotary Encoders for precise sensing of motion&speed control. We main produce rotary encoders and readout units. We can offer a full range of optical rotary encoder specifically designed for the industrial marketplace. We are proud that our Quality System has successfully been audited to the requirements of ISO9001.     Our products have 10~25000P/R of incremental encoders and 8~14 bits of absolute encoders. Our encoders products used with Factory Automation, Motor Control Feedback, CNC Machine Control, Robotics, Elevator, Instrumentation and other types automatically devices. Our activities cover Japan, Korea, Taiwan etc. countries and area.     Remember, YuHeng Optics Co.,Ltd is dedicated your needs.