High Precision Stainless Steel Encoder Disk for Rotary Encoder

Custom Etched Encoder Disk Factory ISO Certified Precision Metal Encoder Disk for Rotary Encoder

1. Product Introduction
In industrial automation, servo control and intelligent motion detection systems, the precision of rotary encoders directly determines the accuracy of equipment motion control. Traditional mechanically processed and laser-cut encoder disk generally has inherent defects such as thermal deformation, uneven grating pitch and rough edge burrs, which easily cause signal jitter, pulse loss and detection errors, restricting the upgrading of high-precision automation equipment.
Our high-performance etched encoder disk adopts advanced stress-free photochemical micro-etching technology, which completely avoids the processing defects of traditional technology. The product features ultra-uniform grating slot distribution, vertical and smooth slot walls and excellent overall flatness. It can capture optical signals accurately and stably during high-speed rotation, effectively improving the resolution, repeatability and anti-interference ability of rotary encoders.
Made of high-grade anti-corrosion and fatigue-resistant metal materials, the etched encoder disk maintains stable physical performance in high-speed operation, high temperature and humid industrial environments. As a core precision component of high-end rotary encoders, it is widely used in servo motors, industrial robots, medical precision instruments, CNC machine tools and intelligent logistics equipment, helping global automation enterprises improve product precision and market competitiveness.
2. Product Specification Table
Key Parameter
Core Performance Advantage

Core Product
High Stability Etched Encoder Disk

Processing Advantages
Zero Stress, Zero Thermal Deformation, Burr-Free, Ultra-High Consistency

Customization Capability
Full custom size, grating resolution, thickness and special shapes

Environmental Adaptability
Anti-Fatigue, Anti-Corrosion, High-Temperature Resistant, Long Lifespan

Functional Value
Stable Signal Output, Low Detection Error, High Motion Precision

Industrial Matching
Optical Rotary Encoder, Servo Motor Encoder, Smart Sensor

3. Etching Process Flow
Our standardized industrial-grade photochemical etching process ensures every etched encoder disk delivers consistent high precision and stability:
High-grade metal substrate purification → Double-sided uniform photoresist coating & curing → High-precision UV grating pattern exposure → Accurate developing molding → Constant-temperature & constant-pressure synchronous etching → Anti-fatigue & anti-corrosion passivation → Ultrasonic dust-free cleaning → Multi-dimensional precision testing → Dust-free export packaging
The whole process adopts full-automatic intelligent production, eliminating manual errors and thermal processing defects, realizing micron-level precision control, fully meeting the long-term high-precision operation requirements of industrial encoder equipment.
4. Packaging Method
For high-precision industrial encoder disk components, we adopt professional dust-free and anti-precision-damage packaging solutions for international trade:
Single products are fixed with special anti-static trays and vacuum sealed to prevent dust adsorption and micro scratches. Batch products are isolated with multi-layer shockproof materials to avoid structural deformation during transportation. Outer cartons are waterproof and pressure-resistant, adapting to long-distance cross-border transportation. Custom brand dust-free packaging and private labeling are available for high-end industrial customers.
5. Our Services
Professional customized precision solution design for etched encoder disk
Stable mass production supply of high-precision encoder disk for industrial encoders
One-stop full service from drawing design, prototyping, production to global delivery
Professional equipment matching and precision optimization technical consultation
Flexible order mechanism for small-batch R&D trial production and large-batch OEM customization
Global standardized after-sales guarantee and long-term technical support
6. FAQ
Q1: Why etched encoder disk improves encoder detection precision?

A1: The ultra-uniform grating structure of etched encoder disk ensures consistent optical signal induction and pulse output. It eliminates signal jitter and detection deviation caused by uneven grating and rough edges of traditional encoder disk, greatly improving the positioning accuracy and operational stability of rotary encoders.
Q2: Is the etched encoder disk suitable for high-speed rotating equipment?

A2: Absolutely. Our stress-free etched encoder disk has no internal processing stress, with excellent flatness and structural stability. It will not deform or vibrate during long-term high-speed rotation, fully suitable for high-speed servo motors and industrial rotary encoder equipment.
Q3: What is the service life of metal etched encoder disk?

A3: After professional anti-corrosion and anti-fatigue passivation treatment, stainless steel and phosphor bronze etched encoder disk features excellent environmental resistance, with a service life of more than 8 years in conventional industrial environments, realizing long-term maintenance-free operation.
Q4: Can you customize exclusive grating resolution for special encoders?

A4: Fully supported. We can customize exclusive grating resolution, slot spacing and disk size according to customers' special encoder equipment parameters to achieve the best matching detection effect.

3. Etching Process Flow

Our standardized industrial-grade photochemical etching process ensures every etched encoder disk delivers consistent high precision and stability:

High-grade metal substrate purification → Double-sided uniform photoresist coating & curing → High-precision UV grating pattern exposure → Accurate developing molding → Constant-temperature & constant-pressure synchronous etching → Anti-fatigue & anti-corrosion passivation → Ultrasonic dust-free cleaning → Multi-dimensional precision testing → Dust-free export packaging

The whole process adopts full-automatic intelligent production, eliminating manual errors and thermal processing defects, realizing micron-level precision control, fully meeting the long-term high-precision operation requirements of industrial encoder equipment.

4. Packaging Method

For high-precision industrial encoder disk components, we adopt professional dust-free and anti-precision-damage packaging solutions for international trade:

Single products are fixed with special anti-static trays and vacuum sealed to prevent dust adsorption and micro scratches. Batch products are isolated with multi-layer shockproof materials to avoid structural deformation during transportation. Outer cartons are waterproof and pressure-resistant, adapting to long-distance cross-border transportation. Custom brand dust-free packaging and private labeling are available for high-end industrial customers.

5. Our Services

• Professional customized precision solution design for etched encoder disk

• Stable mass production supply of high-precision encoder disk for industrial encoders

• One-stop full service from drawing design, prototyping, production to global delivery

• Professional equipment matching and precision optimization technical consultation

• Flexible order mechanism for small-batch R&D trial production and large-batch OEM customization

• Global standardized after-sales guarantee and long-term technical support

6. FAQ

Q1: Why etched encoder disk improves encoder detection precision?
A1: The ultra-uniform grating structure of etched encoder disk ensures consistent optical signal induction and pulse output. It eliminates signal jitter and detection deviation caused by uneven grating and rough edges of traditional encoder disk, greatly improving the positioning accuracy and operational stability of rotary encoders.

Q2: Is the etched encoder disk suitable for high-speed rotating equipment?
A2: Absolutely. Our stress-free etched encoder disk has no internal processing stress, with excellent flatness and structural stability. It will not deform or vibrate during long-term high-speed rotation, fully suitable for high-speed servo motors and industrial rotary encoder equipment.

Q3: What is the service life of metal etched encoder disk?
A3: After professional anti-corrosion and anti-fatigue passivation treatment, stainless steel and phosphor bronze etched encoder disk features excellent environmental resistance, with a service life of more than 8 years in conventional industrial environments, realizing long-term maintenance-free operation.

Q4: Can you customize exclusive grating resolution for special encoders?
A4: Fully supported. We can customize exclusive grating resolution, slot spacing and disk size according to customers' special encoder equipment parameters to achieve the best matching detection effect.