At JYH CNC Precision Machining, we manufacture high-precision CNC-machined PMMA (Acrylic) components engineered for applications where optical clarity, tight tolerances, and dimensional stability are mission-critical.
Using advanced multi-axis machining, specialized acrylic tooling,
and multi-stage polishing workflows, we consistently deliver crystal-clear surfaces, tight tolerances of ±0.01 to ±0.005 mm, and zero-deformation structures suitable for high-end engineering applications.
These components are designed for industries such as optics, automation, instrumentation, medical, LED systems, and prototype product development.
⭐ Key Features & Capabilities
Feature | Description | Benefit |
Optical-Grade Transparency | Achieved through multi-step cutting, fine milling, diamond
polishing, and buffing. | Crystal-clear surface suitable for light guides, lenses, and
display windows. |
Ultra-Tight Tolerances | ±0.01 mm to ±0.005 mm | Ideal for precision assemblies, sealing interfaces, and mechanical
alignment. |
Zero Deformation | Special temperature-controlled machining environment. | Perfect surface flatness and dimensional stability. |
Scratch-Free Finish | Achieved through protective fixturing and careful handling. | Ready for direct use without secondary processing. |
High Repeatability | CMM inspection & process-controlled machining. | Consistent quality from prototype to mass production. |
Material Expertise | PMMA / Acrylic / Clear engineering-grade materials. | Enhanced durability and long service life. |
Product Description
Introducing our CNC-Machined Acrylic (PMMA) Housing and Optical Component Set, engineered for manufacturers who demand high transparency, tight dimensional accuracy, and premium
finishing. Each part is milled from high-purity PMMA and processed through a precision-controlled machining workflow to ensure maximum clarity and performance.
These components demonstrate advanced engineering features, such as uniform surface texture, mirror-like clarity, and uniform screw-seat machining with metal inserts for enhanced strength.
Perfect for optical systems, camera modules, sensor housings, LED illumination units, and testing fixtures.
Engineered with reliability in mind, these PMMA parts maintain stable geometry, resist cracking, and provide long-term optical performance under
demanding operating environments.
Applications
· Optical light guides and diffusion modules
· Transparent mechanical housings
· Camera and sensor windows / covers
· LED illumination components
· Optical testing fixtures and jigs
· Prototype and pilot-run transparent parts
· Protective windows and display modules
PMMA vs Other Transparent Materials
Property | PMMA (Acrylic) | Polycarbonate (PC) | Glass |
Transparency | ⭐ Excellent (92% light transmission) | Very Good | Excellent |
Scratch Resistance | High | Medium | Very High |
Machinability | ⭐ Excellent (clean finish) | Good | Poor |
Weight | Light | Light | Heavy |
Cost | Moderate | Higher | High |
Optical Applications | ⭐ Best choice for clarity | Impact-resistant applications | Specialty optics |
Conclusion:
For optical components requiring high clarity + machinability, PMMA is the superior choice.
Manufacturing Workflow (How We Achieve Optical Quality)
1. Material Selection
o Optical-grade PMMA sheets/blocks inspected for purity and
uniformity.
2. Precision CNC Machining (Up to 5-Axis)
o Designed to achieve tight tolerances and smooth toolpaths.
3. Edge & Surface Polishing
o Diamond tooling
o Micro-abrasive polishing
o Flame or vapor polishing (as required)
4. Dimensional Inspection
o CMM measurement
o Optical flatness checks
o Visual clarity inspection under LED panel lighting
5. Protective Packaging
o Anti-scratch film
o Foam layered impact protection
o Anti-static sealed bags
Technical Specifications
Specification | Value |
Material | PMMA (Acrylic, Optical Grade) |
Tolerance | ±0.01 mm to ±0.005 mm |
Surface Roughness | Ra 0.02 – 0.05 µm (after polishing) |
Max Size | Up to 800 mm (customizable) |
Finish Options | Mirror polish, sandblast, clear polish |
Inspection | CMM, projector, optical clarity inspection |
Why Choose JYH CNC Precision Machining?
· 10+ years of machining expertise in optical plastics
· State-of-the-art CNC milling and polishing equipment
· Engineering support for DFM, tolerance optimization, and
prototyping
· Rapid delivery timelines for sample orders
· Proven quality records with international customers
We deliver optical-grade precision every time, whether you need 1 piece or 10,000 pieces.
