PMMA Acrylic Machined Parts

PMMA Acrylic Machined Parts

3 week ago

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Foshan Anheda New Material Co., Ltd

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Product details

PMMA Acrylic Machined Parts

Product Introduction

Acrylic Machined Parts are high-precision functional parts made of polymethyl methacrylate (PMMA) (commonly known as acrylic or plexiglass) as the base material through CNC precision machining, CNC milling, laser cutting, turning, drilling and other mechanical processing processes. This type of product has both optical transparency, mechanical strength and processing flexibility, and is widely used in technical fields that have high requirements for material transmittance, dimensional stability and weather resistance.

Compared with injection-molded acrylic parts, machined parts are directly formed through digital processing, which can achieve complex structures (such as special-shaped curved surfaces, fine features, high-precision assembly positions, etc.), high surface finish (up to Ra0.2μm) and strict tolerance control (±0.01mm level), especially suitable for small batch customization or prototype development scenarios.

acrylic cut to size

Core Features of acrylic parts

Excellent optical performance

The light transmittance is as high as 92% (close to the light transmittance level of glass), and the light transmittance is uniform, without scattering or yellowing, which is suitable for scenes with high requirements for light transmittance such as optical instruments and display panels.

The surface gloss is high (up to 90GU or more), which can replace glass to achieve a high-value transparent appearance design.

Mechanical strength and processing adaptability

The density is low (1.19-1.20 g/cm³), which is about 1/2 of glass, but the impact strength is 10-15 times higher than that of ordinary glass (in line with ISO 6603 standards), not easy to break, and highly safe.

Support complex structure processing: CNC can achieve thin walls (minimum thickness 0.5mm), micropores (minimum diameter 0.1mm), special-shaped curved surfaces and other precision features to meet high customization needs.

Environmental resistance and chemical stability

Strong weather resistance: no deformation or yellowing in long-term use in the temperature range of -40℃ to +85℃ (in accordance with ASTM D4329 weathering test standard), suitable for outdoor display, automotive lighting and other scenes.

UV resistance: PMMA without additives may turn yellow under long-term ultraviolet irradiation, but surface UV coating or adding hindered amine light stabilizer (HALS) can significantly improve UV resistance (up to 1000 hours of UV test without yellowing).

Chemical corrosion resistance: It has good tolerance to water, weak acids/alkalis (such as dilute hydrochloric acid, ethanol) and common solvents (such as acetone), but it is necessary to avoid contact with strong organic solvents (such as dichloromethane, carbon tetrachloride) to prevent swelling or stress cracking.

Surface treatment and functional expansion

Supports a variety of post-processing processes such as polishing, sandblasting, silk screen printing, laser engraving, coating (such as anti-reflective film, hardened film), etc., which can meet multi-functional needs such as anti-slip, wear resistance, anti-glare, and logo printing.

It can be integrated with other materials (such as metal, silicone) through bonding and inlaying processes to achieve composite functional structure design.

acrylic processing

Advantages compared with other materials

Features	Acrylic machined parts (PMMA)	Glass	PC (polycarbonate)
Light transmittance	92% (very high)	90% (close)	88%-90% (slightly lower)
Impact strength	High (10-15 times that of glass)	High brittleness (easy to break)	Very high (200 times that of glass)
Processing flexibility	High (supports CNC micro-processing)	Low (depends on cutting/grinding)	Medium (processing stress needs to be controlled)
Weather resistance	Excellent (after UV stabilization)	Excellent	Good (may turn yellow after long-term use)
Cost	Medium (depends on processing complexity)	High (large glass molding cost is high)	Medium (material cost is lower than PMMA)

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Foshan Anheda New Material Co., Ltd

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Address: Dongguan, China

Main Product: Nylon Sheet, PE Sheet, PP Sheet, PEEK Sheet, POM Sheet, PTFE Sheet

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