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Acrylic CNC Machining Services

High-Precision Machining for Clear, Strong & Versatile Acrylic Parts
Custom Prototypes and Production with Excellent Surface Finish

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What is Acrylic CNC Machining?

Acrylic (PMMA) machines into clear, glossy parts for optics, displays, guards, and enclosures. With the right tools and heat control, you get crisp edges, smooth surfaces, and high transparency.

  • Tooling: Razor-sharp O-flute or polished carbide; high rake to shear chips cleanly.
  • Heat control: Air blast/mist; avoid melting and stress whitening.
  • Feeds/Speeds: Higher feed, shallow step-over; plan a fine finish pass.
  • Post-finish: Flame/polish/vapor polish (where applicable) for optical clarity.
Acrylic CNC machining overview with O-flute tool and air blast
Acrylic machining: burr control, surface finish, optical clarity

Key Considerations

Cast acrylic cuts cleaner and polishes better than extruded. Use sharp tools, short stick-out, and uniform clamping to prevent chatter and marks.

For show faces and lenses: finish pass with small step-over → deburr gently → polish procedure per spec.

Precision Acrylic CNC Machining

Acrylic 3/4/5-axis CNC milling with O-flute tools, vacuum fixturing

3, 4, 5-Axis CNC Milling

Clear pockets, light pipes, diffuser textures, and thin walls. High RPM, sharp edges, and air blast yield bright surfaces ready for polish or printing.

Acrylic CNC turning/mill-turn for lenses and clear cylinders

CNC Turning & Mill-Turn

Optical faces on rings, cylinders, and domes. Sharp inserts, fine feeds, and controlled DOC reduce chatter and deliver smooth, polish-ready finishes.

Acrylic CNC Machining Capabilities

StandardsDetail
Max Part Size (X/Y/Z)2300 × 1500 × 600mm
Minimum Feature Size⊘1mm
Wall Thickness0.25mm
Tolerance+/-0.01
Surface Finish (as milled)Ra0.5–Ra3.2
Standard Lead Time3 working-days for rapid prototyping
Pricing LevelTo be confirmed after design review
Type of MachineGantry CNC / 3-4-5-Axis CNC / Mill-Turn Compound CNC / Swiss-Type CNC / Turning Machine...etc...
Common GradesCast Acrylic (PMMA-C), Extruded Acrylic (PMMA-X), Impact-Modified Acrylic, Optical-Grade PMMA

Acrylic (PMMA) Grades

From display-grade clarity to impact-modified and optical-grade materials.

Cast acrylic clear block machined and polished (3:2)

Cast Acrylic (PMMA-C)

  • Best clarity; polishes to glass-like finish
  • Cuts cleaner than extruded
  • Great for lenses, windows, light pipes
  • Stable vs heat during machining

Use O-flute tools, air blast, and a fine finish pass—then polish per spec.

Extruded acrylic panel machined with clean edges (3:2)

Extruded Acrylic (PMMA-X)

  • Good clarity; more economical
  • Higher internal stress than cast
  • Displays, covers, guards
  • May craze—handle heat carefully

Light step-over and cool cut to reduce stress whitening; polish as needed.

Impact-modified acrylic machined enclosure (3:2)

Impact-Modified Acrylic

  • Better toughness; slightly lower clarity
  • Good for safety guards and housings
  • Machinability similar to ABS/PMMA
  • Polish/print options available

Keep tools sharp; plan a finish pass for cosmetic faces and edges.

Optical-grade PMMA machined lens element (3:2)

Optical-Grade PMMA

  • Tight clarity & haze specs
  • For lenses, light guides, optics
  • Supports diamond fly-cut and polish
  • Cleanroom packaging as required

Finish per optical process (diamond cut / polish / vapor polish) to spec.

Display of Our Acrylic CNC Machining Parts

Acrylic CNC machined enclosure cover with milled slots
Acrylic CNC machined lens cover with countersunk holes
Acrylic CNC machined manifold plate with threaded ports
Acrylic CNC machined clear panel with polished edges
Acrylic CNC machined display window with optical clarity
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