ASA CNC Machining Services
Precision machined ASA plastic parts for prototypes, low-volume production, and repeat manufacturing.
PlasticCNCPro is a China-based manufacturer focused on CNC machining of plastics and engineering polymers.
Why Choose ASA for Machined Parts
ASA (Acrylonitrile Styrene Acrylate) is a weatherable engineering plastic — a strong alternative to ABS where sunlight, temperature swings, and outdoor exposure are concerns.
Weather & UV Resistance
Superior color and property retention outdoors compared to ABS.
Impact & Toughness
Good impact resistance for covers, panels, and guards.
Dimensional Stability
Low warpage and good rigidity for tight-fitting assemblies.
Surface Quality
Attractive as-machined finish; easy to sand and paint.
Electrical Insulation
Suitable for housings and fixtures in electronics.
Chemical Resistance
Better than ABS for many household chemicals (verify for your media).
Low Moisture Uptake
More stable than hygroscopic plastics in variable humidity.
Common stock forms: extruded sheet/plate, rod, and block in natural and black; other colors may be available on request.
Our ASA CNC Machining Capabilities
Processes
- ✓ CNC milling, turning, drilling, tapping, threading
- ✓ Counterbores, countersinks, slotting, profiling, pocketing, contouring
- ✓ One-off prototypes, engineering samples, bridge/low-volume batches, repeat production
Quality & Tolerances
- ✓ Typical achievable ranges: ±0.05–0.10 mm depending on size/geometry
- ✓ As-machined surfaces; optional fine finishing and edge-breaking
- ✓ Dimensional inspection to your drawing; custom inspection & documentation on request
- ✓ Marking, packaging, labeling — flexible for export and logistics
Typical ASA Applications We Machine
Outdoor Housings & Covers
Bezels, instrument panels, enclosures for telecom, sensors, environmental equipment.
Automotive Components
Exterior trims, mirror components, brackets — all exposed to sunlight and weather.
Signage & Displays
Kiosks, signage, display components that require long-term UV stability.
Marine & Outdoor Recreation
Fixtures, guides, and components for boats, RVs, and outdoor gear.
Industrial Fixtures & Jigs
Weatherability makes ASA ideal for fixtures and assembly aids in outdoor or harsh environments.
Electronics & Semiconductor
Enclosures, brackets, and insulation components for semiconductor and telecom equipment.
Industries served: Industrial automation, semiconductor, medical devices, automotive, aerospace, pumps/valves, food processing, robotics, and more.
ASA vs. ABS: When to Choose ASA
ASA Advantages
- ▲ Superior UV degradation and color fading resistance
- ▲ Maintains appearance longer in sunlight
- ▲ Clean machined finish with proper tooling
- ▲ Better chemical resistance to many household chemicals
If your application involves sunlight or weather, ASA is usually the safer choice over ABS.
ABS Considerations
- ▼ Limited UV resistance; surface may degrade and yellow
- ▼ Less stable color over time in outdoor environments
- ▼ Both materials machine well; ABS may be more economical for indoor use
- ▼ Moderate temperature and chemical resistance; confirm for your media
ABS remains a cost-effective option for interior applications with no weathering requirements.
Design Guidelines for Machining ASA
Wall Thickness & Rigidity
Keep walls uniform; add ribs/bosses for stiffness.
Corners & Fillets
Use internal radii to reduce stress and improve tool life.
Threads & Inserts
Direct-tapped threads possible; for high cycle use insert-ready designs.
Holes & Slots
Provide adequate edge distances; specify counterbores/countersinks.
Flatness Control
Balanced material removal and suitable fixturing help maintain flatness.
Heat Input Management
We manage feeds/speeds and toolpath strategies to control temperature.
Share your drawing and tolerance scheme; our team will review manufacturability and propose adjustments if needed.
Our Working Process
Send Files
2D/3D model, material, quantity, tolerance, application details.
Design Review
We review design, material, tolerances, manufacturability.
Quote & Proposal
You receive a quotation and production recommendation.
Manufacture & Inspect
We produce parts per your specification and inspect.
Ship Worldwide
Packaged to your spec and shipped globally.