Reflective Metal Encoder Disc
Reflective metal-substrate encoder discs with a durable construction, for reflective optical encoders.
Reflective metal encoder discs use metal (such as stainless steel) as the substrate, with reflective and non-reflective areas formed on the surface by precision processing; they are reflective discs. The light source and the receiver sit on the same side of the disc, and position is read from the light/dark variation of the reflected light. Metal substrates offer high mechanical strength, shock resistance and environmental robustness, making them suitable for reflective encoders with compact designs or demanding operating conditions.
Features
- Metal substrate: high strength, shock-resistant, stable and reliable
- Reflective design with a compact optical path
- Precise reflective-area patterns on the surface with clear contrast
- Customizable outer diameter, bore and line count
Specifications and Custom Options
| Item | Description |
|---|---|
| Substrate | Stainless steel and other metals |
| Optical path | Reflective (light source and receiver on the same side) |
| Encoding type | Incremental / absolute |
| Patterning process | Photolithographic patterning forming high- and low-reflectance areas |
| Contour machining | Laser cutting of outer diameter, laser machining of bore |
| Inspection | AOI machine vision inspection of every disc; vision measurement; optical density testing |
| Capacity | About 30,000 discs per day (all product lines combined) |
| Related Patent | “An optical reflective encoder disc, encoder and linear scale” (CN217210914U): reflective film reflectance >90% in the 460 nm and 850 nm bands, absorbing film <1% |
| Customizable | Outer diameter, bore, thickness, line count, track pattern, reflective coating layers |
Specific values such as outer diameter, line count and line width accuracy are evaluated against your drawing; contact an engineer for a specification sheet and quotation.
Typical Applications
Industrial robot joints, automation equipment, reflective encoders for servo and stepper motors, motion control feedback.