Ultra Precision Machining Service
Engineering Solutions with
Nano-Level Accuracy
In today’s competitive high-tech manufacturing landscape, precision differences can determine product success or failure. With 17 years of ultra-precision machining experience, YISHUN Optical provides industry-leading nano-level precision machining services, solving the most challenging precision manufacturing needs for clients worldwide. Our cutting-edge technology achieves tolerances as tight as ±0.0005″ and surface roughness as low as Ra 1 nm, making us the partner of choice for industries where ultimate precision is non-negotiable.
Are you facing these challenges?
- Optical or precision mechanical components requiring extreme accuracy and surface quality
- Complex geometries needing ultra-precise machining
- High-precision requirements for difficult-to-machine materials
- Production needs under strict tolerance requirements
- Optical-grade surface quality requirements
YISHUN Optical has the state-of-the-art equipment, technical expertise, and experienced engineers to provide comprehensive ultra-precision machining solutions, no matter how complex your project or how stringent your requirements.

Our Ultra Precision Machining Capabilities

Ultra Precision CNC Machining
Computer Numerical Control (CNC) machining is a manufacturing process where advanced computer software controls various machines to produce precise parts and components. With our customized CNC machining services, we can complete three-dimensional cutting tasks in a single operation with exceptional repeatability.
At YISHUN Optical, we combine advanced technology with over 17 years of expertise in CNC programming to deliver high-precision machining services. Our facilities are equipped with cutting-edge machines like Mohr diamond lathes and ABB six-axis robots, ensuring that each part is crafted with meticulous attention to detail. Whether you need a single piece or large-volume production, we deliver parts with the precision your project demands.
With our multi-axis CNC machining capabilities, YISHUN Optical can produce complex components with extremely tight tolerances. Our high-speed CNC centers and advanced equipment allow us to achieve tolerances as tight as ±0.0005″ and positional tolerances of ±0.001″ or better.
Our Technological Advantagesents
YISHUN Optical employs multiple advanced processes to provide the optimal solution for your specific needs.
Ultra Precision Turning
Ultra precision turning is a process that uses high-precision CNC lathes to machine precision parts, particularly suited for optical components and precision axisymmetric parts. YISHUN Optical’s ultra precision turning services utilize state-of-the-art Mohr diamond lathes capable of achieving:
- Surface roughness down to Ra 1 nm
- Form accuracy controlled within 0.1 μm
- Dimensional tolerances achieving ±0.5 μm
- Perfect axisymmetric component machining
Ultra Precision Milling
Ultra precision milling is ideal for handling complex three-dimensional shapes, particularly for molds, optical components, and precision mechanical parts. Our ultra precision milling services provide:
- High-accuracy machining of complex shapes
- Fine surface quality
- Precise manufacturing of micro-features
- Precision machining of high-hardness materials
Ultra Precision Grinding
For applications requiring extreme surface quality and dimensional accuracy, our ultra precision grinding services are the perfect choice. This process is particularly suited for hard materials and components requiring strict tolerances. We offer:
- Surface and profile grinding
- Internal and external cylindrical grinding
- Centerless grinding
- Precision honing
The Advantages of Ultra Precision Technology
YISHUN Optical’s ultra precision machining services offer several distinct advantages

Materials We Process
YISHUN Optical has expertise in handling a wide range of advanced materials
Metals
- Stainless Steel, Superalloys, Copper, Titanium
- Aluminum, Exotic alloys (including Invar and Kovar)
- Tungsten, Nickel, and more
Hard Materials
- Ceramics and Carbides
- Fine surface quality
- Precise manufacturing of micro-features
Optical Materials
- BK7 Optical Glass, Silicon, Silicon Carbide
- Sapphire and other crystalline materials
- Quartz and specialty optical materials
Plastics and Composites
- PEEK (Polyether Ether Ketone)
- PMMA (Polymethyl Methacrylate)
- High-performance engineering plastics
Applications
Our ultra precision machining services meet the needs of multiple high-tech industries

Optical Components
- Precision lenses and prisms
- High-reflectivity mirrors
- Optical molds and tooling
- Beam-shaping elements

Precision Molds
- Injection mold mirror surfaces
- Precision stamping dies
- Optical molds
- Micro-mold components

Precision Mechanical Parts
- High-accuracy shafts and bearings
- Precision positioning system components
- Aerospace components
- Precision medical device parts

Metrology and Testing Equipment
- Precision reference components
- Measurement standards
- Measuring probes and sensors
- Calibration equipment
Industry Solutions
YISHUN Optical’s ultra precision machining services meet the needs of multiple industries
Ultra Precision Machining Techniques
YISHUN Optical employs multiple cutting-edge techniques to achieve ultra precision machining
Equipment Advantage
Our facility is equipped with state-of-the-art ultra precision machining equipment

Mohr Diamond Lathes
- Nano-level surface finishes
- Sub-micron form accuracy
- Optical-grade surface quality
Multi-Axis Ultra Precision Machining Centers
- Complex geometry machining
- High-accuracy positioning
- 5-axis simultaneous machining
ABB Six-Axis Robots
- Automated precision operations
- Consistent quality control
- Enhanced production efficiency
Precision Metrology Equipment
- Zeiss and Zygo measurement systems
- Interferometers and profilometers
- Atomic Force Microscope inspection
Low Volume Ultra Precision Machining Services
At YISHUN Optical, we specialize in low-volume ultra precision machining with tight tolerances, handling production runs ranging from hundreds to thousands of parts per year. Our efficient systems allow for extended production runs with minimal setup, ensuring quicker turnaround times and cost-effective manufacturing.
Our CNC machines are equipped with pallet systems that allow for continuous production, with automatic material loading and unloading, which keeps the machining process running smoothly 24/6.


Why Choose YISHUN Optical for Custom Ultra Precision Machined Parts?
Our ultra-precision machining services offer exceptional accuracy and repeatability. Whether you need custom parts for optical components or intricate mold polishing, our machines deliver ultra-sharp cuts and tight tolerances for optimal performance. Some of the key benefits of working with us include:
- Precision and accuracy at the nano level
- High repeatability for consistent results
- Capability to meet extremely tight tolerances
- Suitable for the most demanding engineering applications
- Cost-effective for complex geometries
- Fast production turnaround, getting your products to market quickly
Value-Added Services
In addition to ultra precision machining, we offer a range of value-added services to ensure the best results for your project. These services include:
- Custom mirror surface processing
- Ultra precision optical polishing
- In-house tool and die manufacturing
- Precision measurement using Zeiss and Zygo systems
- Comprehensive quality documentation
- Assembly and integration services

Quality Assurance
YISHUN Optical’s commitment to quality is evident in every step of our process

Inspection Equipment
- Surface Roughness Testers: Measuring to nanometer levels
- Flatness Interferometers: Measuring flatness to fractions of a wavelength
- Roundness Testers: For precision spherical components
- Coordinate Measuring Machines: For dimensional verification

Quality Procedures
- Initial inspection of incoming materials
- In-process inspection at critical stages
- Final inspection with comprehensive documentation
- Traceable records for each component

Certifications
- ISO 9001:2015 Quality Management System
- ISO 14001:2015 Environmental Management System
- Compliance with industry-specific standards
Why Choose YISHUN Optical?

Advanced Technology and Equipment
- Latest ultra precision machining machines
- Advanced metrology and quality control systems
- Environmentally-controlled clean room facilities

Material Expertise
- Experience with a vast range of materials from soft metals to hard crystals
- Specialized knowledge to address unique material challenges
- Comprehensive understanding of material characteristics

Quality Commitment
- ISO standard certifications
- Comprehensive testing and verification
- Rigorous quality control processes

Extensive Experience
- 17 years of ultra precision machining experience
- Success stories across multiple high-tech industries
- Expertise in solving complex machining challenges

Customer -Centric Approach
- Customized solutions tailored to your specific application
- Responsive service and flexible production capabilities
- Long-term partnership relationships
How Our Customers Benefit

Enhanced Product Performance
Our ultra precision machining translates directly into better product performance, whether it's optical clarity, mechanical durability, or overall functionality.
Cost Reduction
By manufacturing precisely the first time, we reduce scrap rates, lower rework costs, and extend tool life.
Competitive Advantage
When your products showcase the highest quality precision machining, you stand out in the marketplace, attracting high-value customers and building a reputation for excellence.
Complex Challenge Resolution
Our expertise enables you to develop and manufacture innovative products that were previously impossible due to machining limitations.
Get Started with Your Optical Polishing and Ultra Precision Machining Projects
Ready to take your optical projects to the next level? Yishun Optical is here to support you every step of the way. Our team is dedicated to providing a seamless experience, ensuring that your optical components meet the highest performance standards through our expert polishing and ultra precision machining services.