CNC Machining Capabilities
Advanced CNC machining solutions for precision optical components, delivering micron-level accuracy across PMMA, PC, and ABS substrates.
±0.01mm
Tolerance
Class 1K
Cleanroom
20+yr
Experience
ISO 9001:2015
Quality Certified
5-Axis CNC
Full Capability
Materials We Machine
Specialized CNC machining for optical-grade polymers, each requiring distinct toolpath strategies and surface finishing protocols.
Acrylic (PMMA)
Polymethyl Methacrylate
Exceptional optical clarity with up to 92% light transmittance. Ideal for precision lenses, light guides, and display covers demanding high surface quality.
- High optical transmittance ≥92%
- Excellent surface finish Ra <0.1μm
- Compatible with AR/AG coatings
Polycarbonate (PC)
High-Impact Engineering Polymer
Outstanding impact resistance combined with optical clarity. The material of choice for protective visors, helmet shields, and safety goggles in demanding environments.
- Impact resistance 250× vs glass
- Wide temp range -40°C to 120°C
- UV-stable grades available
ABS Polymer
Acrylonitrile Butadiene Styrene
Versatile structural polymer with excellent machinability and dimensional stability. Widely used for housings, brackets, and structural components in optical assemblies.
- Excellent dimensional stability
- Good chemical resistance
- Surface-ready for painting/plating
Core CNC Capabilities
From prototyping to high-volume production, our CNC capabilities cover the full spectrum of optical component manufacturing.
5-Axis Precision Milling
Simultaneous 5-axis machining of complex optical surfaces including aspheric profiles, freeform geometries, and compound curves with sub-micron repeatability.
Precision Turning & Boring
CNC lathe operations for rotationally symmetric optical elements including lens barrels, spacer rings, and cylindrical optical housings with tight concentricity.
Optical Surface Polishing
Post-machining CNC-guided polishing to achieve optical-grade surface roughness (Ra <0.05μm) on PMMA and PC substrates, ready for AR/AG coating deposition.
Sheet Cutting & Profiling
Precision CNC routing and profiling of PMMA/PC sheets for custom shapes, complex outlines, and edge-lit panel components with clean, chip-free edges.
Mold & Tooling Fabrication
In-house CNC mold development for injection molding tooling, enabling complete design-to-production control with proprietary mold design capabilities.
Rapid Prototyping
Accelerated prototype production from CAD files to physical parts in as little as 3-5 business days, supporting fast design iteration for optical product development.
Our CNC Production Process
A streamlined workflow from design to delivery, ensuring quality at every step of the manufacturing chain.
01
DFM Review
Design for manufacturability analysis
02
CAM Programming
Toolpath generation & simulation
03
Material Prep
Substrate selection & conditioning
04
CNC Machining
Precision cutting in cleanroom
05
QC Inspection
CMM & optical metrology
06
Delivery
Protected packaging & shipping
Machine Specifications
State-of-the-art equipment configurations ensuring unmatched precision and repeatability.
Machining Centers
- Axis Configuration
- 3-axis / 5-axis simultaneous
- Spindle Speed
- Up to 60,000 RPM
- Positioning Accuracy
- ±0.002mm
- Repeatability
- ±0.001mm
- Max Workpiece (LxWxH)
- 1200 × 800 × 400mm
Turning Centers
- Chuck Capacity
- Up to Ø320mm
- Max Turning Diameter
- Ø500mm
- Spindle Speed Range
- 50-8,000 RPM
- Roundness
- ≤0.002mm
- Live Tooling
- C-axis + Y-axis capable
Cleanroom Environment
- Class 1,000 Zone
- Critical optical machining
- Class 10,000 Zone
- Assembly & polishing
- Temperature Control
- 20°C ±0.5°C
- Humidity Control
- 45-55% RH
Metrology & QC
- CMM Accuracy
- ±0.001mm
- Surface Profilometer
- Ra measurement to 0.01μm
- Optical Interferometry
- Wavefront error <λ/10
- Inspection Protocol
- 100% critical dimensions
Application Areas
Our CNC-machined optical components power products across a wide range of precision industries.
Consumer Electronics
Smartphone lenses, camera modules, and display optical elements for mobile devices.
Safety & Protection
Helmet visors, face shields, safety goggles, and machinery protective guards.
VR / AR Systems
Freeform optics, waveguide elements, and integrated lens systems for immersive displays.
Medical Devices
Medical protective goggles, diagnostic imaging optics, and surgical visualization components.
Certified to International Standards
Every CNC-machined component produced at VIIST undergoes rigorous quality control under our internationally accredited management systems, ensuring consistent compliance with global market requirements.
ISO 9001:2015
Quality Management
ISO 14001:2015
Environmental Mgmt
QC 080000
Hazardous Substances
ERCC
Compliance Standard
GB Standard Compliant: All products strictly adhere to Chinese national standards (GB) while achieving industry-leading technical performance benchmarks recognized in global markets.
Class
1,000
Machining Zone
Class
10,000
Assembly Zone
100%
QC Inspection
Why VIIST for CNC Machining?
Integrated capabilities and deep optical expertise set our CNC services apart from conventional machine shops.
Vertically Integrated Production
From mold design through CNC machining, injection molding, coating, and screen printing -- all under one roof. This eliminates supplier handoffs and ensures total quality control.
Dedicated R&D Department
Our in-house R&D team continuously develops advanced toolpath strategies, cutting fluid formulations, and fixture designs tailored specifically to transparent optical polymers.
Coating-Ready Surface Finishing
Machined surfaces are processed to meet the adhesion requirements of our in-house AR, AG, anti-fog, anti-scratch, and anti-static coating systems -- no secondary vendor needed.
Global Supply Chain Ready
Established logistics partnerships and export documentation expertise enable reliable delivery to customers across Asia, Europe, and the Americas with full traceability.
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