...encoder discs machining service Xinhaisen focus on customized metal parts machining service for more than 13 years. We can provide custom stainless steel encoder discs according to customer's design drawings. The material could be stainless steel, copper, titanium alloy, etc. The thickness could be 0.05-0.6MM. What is Encoder Disc? Encoder disc (or encoder code wheel) is a critical component in optical/magnetic encoders