Custom Etched Optical Encoder Disc & Rotary Encoder Wheel for
Motion Sensing
Product OverviewXinhaisen specializes in the high-volume production of precision metal encoder discs (also known as code wheels or optical encoders). Using
advanced photochemical etching, we produce intricate, burr-free
patterns with tight tolerances. These discs are critical for
converting mechanical motion into electrical signals in
high-precision systems. What is Etching?Etching (photochemical machining) is a subtractive manufacturing
process. A metal sheet is coated with photosensitive resist,
exposed to a precise digital pattern, developed, and then
chemically dissolved to create complex features. Unlike stamping or
laser cutting, etching creates no burrs, no heat-affected zones, and no mechanical stress, making it ideal for thin, delicate encoder discs. Product FeaturesHigh Precision: Achieves positional accuracy of up to ±0.01mm (customizable). Fine Lines & Gaps: Minimum line width / space down to 0.02mm (20µm). Burr-Free & Stress-Free: Smooth edges ensure clean optical readings; no deformation. Material Versatility: Available in SUS301, SUS304, beryllium copper, nickel-silver,
and other alloys. Custom Patterns: Supports incremental, absolute, or custom coded patterns. Thickness Range: 0.05mm to 0.4mm (ultra-thin for low inertia).
Product Specifications| Parameter | Specification | | Materials | Stainless Steel (301, 304), Copper, Brass, Nickel Alloy | | Thickness | 0.05 mm – 0.4 mm | | Min. Hole Diameter | 0.03 mm (30 µm) | | Min. Line Width | 0.015 mm (15 µm) | | Tolerance | ±0.005mm (depending on material & thickness) | | Flatness | Excellent (no heat stress) | | Lead Time | 5–7 days for prototypes; 7–15 days for mass production |
ApplicationsEncoder discs from Xinhaisen are used in industries requiring
precise motion control: Medical Devices: Surgical robots, motor control systems. Aerospace & Automotive: Steering angle sensors, throttle position sensors. Industrial Automation: Servo motors, stepper motors, robotic arms. Office & Consumer: Printers, scanners, high-end audio volume controls. Optical & Measurement: Optical encoders, tachometers.
Why Choose Xinhaisen?Rapid Prototyping: No hard tooling required; low NRE cost for custom designs. Scalability: From 10 pcs to 10 million pcs with consistent quality. Superior Quality: All discs pass strict flatness and optical inspection. Cost-Effective for Complex Parts: High-complexity patterns cost no more than simple ones. Fast Turnaround: Short lead times for urgent OEM/ODM orders.
FAQ- Q1: What is the thinnest encoder disc you can make?
A: We can etch encoder discs as thin as 0.05mm for ultra-low inertia applications. - Q2: Can you produce a disc with a custom code pattern (non-standard
slots)?
A: Yes. We work from any 2D CAD or Gerber file. Custom patterns are
our specialty with no extra tooling cost for prototypes. - Q3: How does etching compare to laser cutting for encoder discs?
A: Etching is superior for thin metals because it produces no heat burrs, no recast layer, and higher throughput for batch production. Laser may cause micro-burrs that affect
optical performance. - Q4: What is your typical lead time for a custom encoder disc?
A: Prototypes: 5–7 working days. Mass production: 7–15 working days after approval. - Q5: Do you offer surface finishing or post-processing?
A: Yes. We provide deburring, cleaning, passivation, and flattening
as needed. - Q6: What quality standards do you follow?
A: We follow ISO 9001:2015 quality management with 100% optical
inspection for critical dimensions.
Welcome to contact us at any time! |
