CNC Acrylic Machining: The Ultimate Guide for Precision Plastic Parts
Acrylic (PMMA) is one of the most widely used transparent plastics in CNC systems, offering superior advantages over polycarbonate and glass. Its versatility makes it ideal for industries ranging from automotive to medical. This guide covers everything from material properties to machining best practices.
What is Acrylic (PMMA)?
Acrylic, or poly(methyl methacrylate) (PMMA), is a rigid, transparent thermoplastic. Known as a shatter-resistant alternative to glass, it’s available in pellets, sheets, or extruded forms. Key features include:
· High optical clarity (92% light transmission)
· UV stability for outdoor use
· Recyclability and chemical resistance
Why Choose CNC for Acrylic Machining?
CNC machining delivers precision-cut acrylic parts with:
✔ Tight tolerances (±0.1mm)
✔ Smooth edges (minimal post-processing)
✔ Complex geometries (laser cutting, milling, engraving)
Acrylic Properties for CNC
|
Property |
Value |
Advantage |
|
Density |
1.17–1.20 g/cm³ |
Lightweight yet durable |
|
Surface Hardness |
85–105 Rockwell M |
Scratch-resistant |
|
Thermal Expansion |
0.07mm/m·°C |
Requires machining compensation |
CNC Acrylic Machining Processes
1. CNC Milling & Routing
· Best for: Signage, displays, prototypes
· Tool Tip: Use single-flute carbide bits to reduce melting.
2. Laser Cutting
· Best for: Intricate designs (e.g., retail fixtures)
· Settings: Low heat input prevents edge yellowing.
3. Injection Molding
· Best for: High-volume parts (e.g., lenses, knobs)
· Mold Design: Include draft angles (1–2°) for easy release.
Top 5 CNC Acrylic Machining Tips
1. Minimize Heat Buildup
2. Use compressed air to cool cuts. Optimize feed rates (e.g., 1.5 m/min for 3mm sheets).
3. Avoid Cracking
4. Drill holes ≥3x material thickness from edges. Anneal parts post-machining for stress relief.
5. Achieve Optical Clarity
6. Polish edges with flame polishing or diamond buffing.
7. Select the Right Acrylic Type
8. Extruded: Cost-effective for simple shapes. Cell-cast: Superior for precision optics.
9. Use Solvent Bonding for seamless joints (e.g., Weld-On #4).
10. Applications of CNC Acrylic Parts
|
Industry |
Uses |
|
Automotive |
Tail lights, dashboards, windshields |
|
Medical |
Incubators, surgical tools, dentures |
|
Architecture |
Skylights, sound barriers, facade panels |
|
Retail |
Display cases, POS stands, signage |
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Quality & Warranty
What if the products are damaged during shipping?
Orders & Pricing
Do you offer bulk discounts?
Glitter Acrylic Sheet
Can glitter acrylic be used outdoors?
Yes, with our UV-resistant option (5-year color guarantee).
Product-Related Questions
What’s the difference between cast and extruded acrylic?
What sizes and thicknesses are available?
Hot Sale 0.6MM 0.8MM 1.25MM 1.3MM 1.5MM 2MM 3MM Abs Laser Engraving CNC Abs Double Color Plastic Sheet for CNC LASER Engraving
Who We Are
Foshan Chinaplas Material Co., Ltd. specializes in the design, engineering, and manufacturing of high-performance ABS dual-color injection-molded components. With over a decade of dedicated expertise, we have become a reliable partner for brands seeking seamless, durable, and visually striking plastic solutions.
Our Expertise: ABS Dual-Color Molding
We master the art and science of dual-shot molding, seamlessly integrating two colors or material grades of ABS into a single, robust part. Our process eliminates the need for secondary assembly, painting, or bonding—delivering products that are not only aesthetically superior but also structurally sound.
Key Advantages of Our Products
✅ Seamless Integration – Perfect bonding of colors/materials with no gaps, no peeling, and no assembly lines.
✅ Design Freedom – Enable complex geometries, sharp color contrasts, embedded logos, and textured finishes (soft-touch, gloss, matte).
✅ Functional Performance – Combine rigid and flexible ABS for ergonomic grips, seals, or backlight-ready sections.
✅ Durability & Lightweight – Inherit the impact resistance and strength of ABS while reducing product weight.
✅ Cost Efficiency – Lower total cost of ownership through part consolidation, reduced assembly, and streamlined production.
Our Added Value
🔹 10+ Years of Specialization – Deep process know-how in ABS dual-color molding.
🔹 End-to-End Support – From DFM (Design for Manufacturability) and prototyping to high-volume production.
🔹 Quality Commitment – Strict control over material selection, molding parameters, and final inspection.
🔹 Industry-Focused Solutions – Proven experience in consumer electronics, automotive interiors, home appliances, and industrial components.
Why Partner With Us?
At Foshan Chinaplas, we don’t just manufacture parts—we deliver integrated solutions that enhance product value, performance, and appeal. Let’s collaborate to turn your innovative ideas into reality.
ABS DUO COLOR for Advertising UV proof suitable for outdoor
Who We Are
Foshan Chinaplas Material Co., Ltd. specializes in the design, engineering, and manufacturing of high-performance ABS dual-color injection-molded components. With over a decade of dedicated expertise, we have become a reliable partner for brands seeking seamless, durable, and visually striking plastic solutions.
Our Expertise: ABS Dual-Color Molding
We master the art and science of dual-shot molding, seamlessly integrating two colors or material grades of ABS into a single, robust part. Our process eliminates the need for secondary assembly, painting, or bonding—delivering products that are not only aesthetically superior but also structurally sound.
Key Advantages of Our Products
✅ Seamless Integration – Perfect bonding of colors/materials with no gaps, no peeling, and no assembly lines.
✅ Design Freedom – Enable complex geometries, sharp color contrasts, embedded logos, and textured finishes (soft-touch, gloss, matte).
✅ Functional Performance – Combine rigid and flexible ABS for ergonomic grips, seals, or backlight-ready sections.
✅ Durability & Lightweight – Inherit the impact resistance and strength of ABS while reducing product weight.
✅ Cost Efficiency – Lower total cost of ownership through part consolidation, reduced assembly, and streamlined production.
Our Added Value
🔹 10+ Years of Specialization – Deep process know-how in ABS dual-color molding.
🔹 End-to-End Support – From DFM (Design for Manufacturability) and prototyping to high-volume production.
🔹 Quality Commitment – Strict control over material selection, molding parameters, and final inspection.
🔹 Industry-Focused Solutions – Proven experience in consumer electronics, automotive interiors, home appliances, and industrial components.
Why Partner With Us?
At Foshan Chinaplas, we don’t just manufacture parts—we deliver integrated solutions that enhance product value, performance, and appeal. Let’s collaborate to turn your innovative ideas into reality.
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Foshan Chinaplas Material Co.,ltd
Foshan Chinaplas Material Company Limited
FOSHAN CHINAPLAS MATERIAL CO.,LTD
Foshan Chinaplas Material Co.,ltd
CHINAPLAS ACRYLIC
Whatsapp: +8613927780518