Customized Stainless Steel Optical Encoder Discs Via Metal Etching Machining

Customized stainless steel 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, featuring precision-etched patterns to convert mechanical motion into digital signals. Our etched code disks ensure ±0.01mm accuracy for industrial automation, robotics, and motion control systems.

Encoder Discs Etching Process

1. Material Prep: Clean and degrease metal sheets.
2. Photoresist Coating: Apply UV-sensitive resist.
3. Exposure: Transfer flow field design via photomask.
4. Development: Remove unexposed resist to reveal etching areas.
5. Etching: Immerse in etchant to dissolve unprotected metal.
6. Strip & Clean: Remove residual resist and polish.
7. QC Inspection: Validate dimensions, conductivity, and surface finish.

• Burr-free edges
• Stress-free components
• High-precision (±0.001mm tolerances)
• Cost-effective (No tooling cost)

Encoder Discs FAQ Section 

Q: What kind of encoder discs can we fabricate?

A: For functions, we can fabricate optical encoder code wheels, capacitive encoder code wheels, magnetic encoder code wheels, reflective encoder code wheels.

    For materials, we can fabricate metal encoder code wheels, glass encoder code wheels, plastic (film, PET) encoder code wheels.

Q: What's the lead time for prototype encoder discs?
A: 5-7 days for samples, 15 days for mass production.

Q: Do you provide RoHS-compliant materials?
A: Yes, all materials meet RoHS/REACH standards.

How to customize the encoder discs from us.

1.Please send us your design.

We accept the following file formats:

DWG, DXF, PDF, Step, Gerber, IGES, CorelDraw and Adobe Illustrator

2.Samples making lead time:3-10days

3.Express:By DHL,Fedex,TNT,around 3-7days