Copper Etching Custom Service Etched Encoder Disc for Optical Sensor
Product Details
| Materials: | Stainless Steel Or Customized | Thickness: | 0.02mm - 1.5mm |
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| Tolerance: | +/- 0.005mm | Production Process: | Photo Chemical Etching, Plating, Stamping, Laser Cutting |
| Highlight |
custom copper etching service,etched encoder disc,optical sensor encoder disc |
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Product Description
Copper Etching Custom Service Etched Encoder Disc for Optical Sensor
What is a Copper Etched Encoder Disk?
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A Copper Etched Encoder Disk is a high-precision rotary sensing component made from a thin copper sheet using photochemical etching (PCE). It’s used in rotary encoders to accurately measure position, speed, and direction of a rotating shaft. What it looks like
When the disk rotates, sensors read these patterns to generate signals. |
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Except Copper, What Materials We Use
We manufacture metallic encoder disks using high-quality materials to ensure stability, durability, and excellent corrosion resistance:
| Stainless Steel | Aluminum | Nickel | Titanium |
Specifications of Copper Etched Encoder Disk
| Thickness | 0.1mm – 1.0mm |
| Outer Diameter | 5mm – 300mm (customizable) |
| Etch Accuracy | ±0.01mm (According to the thickness) |
| Surface Finish | Matte / Bright / Passivated |
| Pattern Type | Slots, lines, code patterns, or custom designs |
How Copper Etched Encoder Disc Works
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The disk is mounted on a rotating shaft
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As it spins, light (optical encoder) or magnetic/electrical sensors detect the etched patterns
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The encoder converts these signals into data such as:
- Rotation angle
- Speed (RPM)
- Direction of movement
Common Applications of Copper Etched Encoder Disc
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Industrial rotary encoders
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Servo motors & stepper motors
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Robotics and automation systems
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CNC machinery
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Medical and precision instruments
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Aerospace & defense positioning systems
Why Copper?
Copper is often chosen because it offers:
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Excellent electrical conductivity
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Good dimensional stability in thin gauges
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Easy, precise etching for fine features
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Cost-effective production for complex geometries
It’s especially suitable for photo-etched encoder disks with very fine line widths.
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Why photochemical etching?
Photochemical etching allows:
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Burr-free and stress-free edges
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Extremely fine features (down to tens of microns)
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No tool wear (unlike stamping or laser cutting)
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High repeatability for mass production
This is critical for encoder accuracy.
Customization & OEM Service
We support custom metallic encoder disks based on your CAD drawings or design files (DWG, DXF, AI, PDF).
Our engineering team will assist in optimizing your design for etching efficiency and precision.
Send us your drawings or specifications today for a detailed quotation and free DFM evaluation.
Product Highlights
Copper Etching Custom Service Etched Encoder Disc for Optical Sensor What is a Copper Etched Encoder Disk? A Copper Etched Encoder Disk is a high-precision rotary sensing component made from a thin copper sheet using photochemical etching (PCE). It’s used in rotary encoders to accurately measure ...
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