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CNC Plastic Milling Services
Precision CNC Plastic Milling Services | Custom Plastic Machining
Professional CNC milling services for engineering plastics including PEEK, Delrin (POM), PTFE, and Nylon. High-precision plastic machining with ±0.03mm (±0.0012") tolerances • No Minimum Order • Fast Global Shipping
What is CNC Plastic Milling & Machining?
CNC plastic milling is a precision subtractive manufacturing process that uses computer-controlled rotating cutting tools to remove material from solid plastic stock, creating custom components with complex geometries and tight tolerances. Unlike injection molding which requires expensive tooling, CNC machining plastic parts offers unmatched flexibility for prototypes, low-volume production, and custom plastic fabrication.
BeePlastic specializes in precision CNC milling services for engineering plastics, serving customers across Europe, America, and Australia. Our advanced multi-axis CNC machining capabilities enable us to produce high-precision plastic components from challenging materials like PEEK, Delrin, PTFE, Nylon, and over 30 other engineering-grade plastics.
Whether you need a single prototype plastic part or low-volume production runs, our no minimum order quantity (No MOQ) policy makes us ideal for product development, R&D projects, and custom manufacturing. We combine competitive pricing with tight tolerance machining down to ±0.03mm (±0.0012") for mission-critical applications.
Advanced CNC Plastic Machining Capabilities
Our state-of-the-art CNC machining center combines multi-axis technology with specialized expertise in engineering plastic machining to deliver components that meet your most stringent specifications.
3-Axis CNC Milling
Efficient production of flat and simple contoured plastic parts. Ideal for precision plastic milling of plates, brackets, housings, and components with straightforward geometries. Cost-effective for rapid prototyping and production runs.
4-Axis CNC Milling
Enhanced capability for plastic machining of parts requiring rotational features, cylindrical components, and angular cuts. Perfect for custom plastic parts with curved surfaces and complex contours in a single setup.
5-Axis CNC Milling
Complete freedom for complex plastic geometries, undercuts, and intricate features. Our 5-axis CNC machining eliminates multiple setups, ensuring superior accuracy for high-precision plastic components with tight tolerances.
Technical Specifications for Plastic CNC Machining
| Capability | Specification |
|---|---|
| Standard Tolerance | ±0.13mm (±0.005") |
| Precision Tolerance | ±0.03mm (±0.0012") for critical dimensions |
| Maximum Part Size | 1000mm × 600mm × 400mm (39.4" × 23.6" × 15.7") |
| Minimum Feature Size | 0.5mm (0.020") diameter holes and details |
| Surface Finish (As-Machined) | Ra 1.6μm (63 μin) or better |
| Minimum Order Quantity | No MOQ – from 1 prototype to 10,000+ parts |
| Typical Lead Time | 5-10 business days (expedited available) |
| CNC Machining Services | Milling, Turning, Drilling, Tapping, Threading, Boring, Contouring |
Engineering Plastics for CNC Machining
We specialize in CNC machining over 30 engineering plastic materials, each selected for specific mechanical, thermal, and chemical properties. Our material expertise helps you choose the optimal plastic material for your application requirements.
High-Performance Thermoplastics CNC Machining
PEEK (Polyetheretherketone)
Ultimate high-performance plastic with exceptional strength, chemical resistance, and thermal stability up to 260°C (500°F). Our PEEK machining services include medical-grade, glass-filled, and carbon-filled variants for demanding applications.
Applications: Medical implants, aerospace components, oil & gas seals, semiconductor parts
Properties: High strength, biocompatible, radiation resistant, low moisture absorption
Delrin / POM (Acetal)
Known as "super steel" among plastics, Delrin machining offers excellent dimensional stability, low friction, and superior machinability. We machine both POM-H (homopolymer) and POM-C (copolymer) grades for precision mechanical components.
Applications: Gears, bearings, bushings, valve components, conveyor parts
Properties: Low friction, high stiffness, excellent wear resistance, tight tolerances
PTFE (Teflon®)
Lowest friction coefficient of any solid material combined with outstanding chemical resistance and temperature stability (-200°C to +260°C). Essential for chemical processing equipment, food-grade applications, and high-purity sealing components.
Applications: Chemical seals, gaskets, valve seats, food processing parts, electrical insulators
Properties: Ultra-low friction, chemical inertness, FDA compliant, high-temp resistance
Nylon / PA (Polyamide)
Tough, wear-resistant thermoplastic with excellent impact strength and self-lubricating properties. Our Nylon machining services cover natural, glass-filled (PA66 GF30), and UV-stabilized grades for automotive plastic parts and industrial machinery.
Applications: Automotive components, rollers, wear plates, sprockets, industrial gears
Properties: High toughness, wear resistant, impact strength, self-lubricating
UHMW-PE (Ultra-High Molecular Weight Polyethylene)
Exceptional abrasion resistance, low friction, and impact strength. Our UHMW-PE machining creates wear components for material handling, food processing, and marine applications requiring maximum durability.
Applications: Wear strips, guide rails, chain guides, conveyor liners, marine fenders
Properties: Extreme wear resistance, FDA approved, chemical resistant, low friction
PPS (Polyphenylene Sulfide)
High-temperature thermoplastic with excellent chemical resistance and dimensional stability. PPS machining is ideal for automotive under-hood components, electrical connectors, and chemical processing equipment operating up to 220°C.
Applications: Automotive pumps, electrical components, chemical valves, aerospace parts
Properties: High heat resistance, excellent chemical resistance, flame retardant
General Purpose Plastic Machining
ABS Machining
Cost-effective for prototypes, housings, and general-purpose parts. Excellent impact strength and machinability.
Polycarbonate (PC)
High impact strength with optical clarity. Our PC machining serves safety shields, lenses, and transparent enclosures.
Acrylic (PMMA)
Glass-like transparency for optical applications, light guides, displays, and decorative components.
HDPE Machining
Food-grade, chemical resistant, and durable. Ideal for tanks, cutting boards, and chemical equipment.
Polypropylene (PP)
Lightweight, chemical resistant, and cost-effective for chemical tanks, laboratory equipment, and food containers.
PVC Machining
Chemical resistance and flame retardancy for industrial piping, chemical processing, and electrical insulation.
Specialty Engineering Plastics
FR4 / G-10 Machining
Electrical insulation, circuit board substrates, and semiconductor equipment parts requiring high dielectric strength.
PEI (Ultem®)
High heat resistance (220°C continuous) and flame retardancy for aerospace plastic components and automotive.
PET Machining
Food-safe, impact resistant, and chemical resistant for food processing equipment and packaging machinery.
PAI (Torlon®)
Highest performing thermoplastic with exceptional strength and thermal stability up to 275°C for extreme applications.
PI (Polyimide)
Ultra-high temperature resistance (up to 300°C) for aerospace, semiconductor, and specialized industrial applications.
Bakelite / Phenolic
Thermoset plastic with excellent electrical insulation and heat resistance for electrical components and switches.
Industries & Applications for CNC Plastic Parts
Our precision plastic machining services serve critical applications across diverse industries where quality, accuracy, and reliability are paramount.
Medical & Life Sciences
We produce medical device components including surgical instrument parts, diagnostic equipment housings, implantable device prototypes, sterilization trays, and custom medical fixtures. Our medical-grade plastic machining uses materials like medical-grade PEEK, PPSU, and USP Class VI compliant plastics ensuring biocompatibility and regulatory compliance.
Common Medical Applications: Surgical tool handles, orthopedic trial implants, diagnostic equipment housings, fluid handling manifolds, custom lab equipment, sterilizable trays and fixtures.
Aerospace & Defense
Aerospace plastic parts demand lightweight yet strong materials that withstand extreme conditions. Our precision CNC machining supports production of aircraft interior components, electrical insulators, lightweight structural brackets, UAV components, and satellite parts from materials like PEEK, PEI (Ultem), carbon-filled polymers, and FR4 composites.
Aerospace Applications: Interior panels, electrical insulation components, lightweight brackets, UAV structural parts, antenna housings, wire harness components, thermal insulation.
Automotive & Transportation
From under-hood components to transmission parts and fuel system elements, our automotive plastic machining helps reduce vehicle weight while maintaining durability. We machine prototype parts for new vehicle development and small-batch production of specialty components.
Applications: Engine components, transmission bushings, fuel system parts, electrical housings, interior trim prototypes, sensor housings.
Electronics & Semiconductor
Precision electronic enclosures, semiconductor equipment parts, insulating components, and test fixtures require materials with specific dielectric properties and dimensional stability. Our expertise with FR4, G-10, PEEK, and technical plastics serves this demanding sector.
Applications: IC test sockets, wafer handling parts, electrical insulators, equipment housings, custom fixtures, thermal management components.
Industrial Equipment & Machinery
Manufacturing automation, chemical processing equipment, food processing machinery, and laboratory instruments rely on our custom plastic fabrication for wear parts, seals, insulators, and structural components that outperform metal alternatives.
Applications: Wear pads, chemical valve seats, conveyor components, machinery bushings, pump parts, custom tooling, chemical-resistant components.
Our CNC Plastic Milling Process
From initial quote to final delivery, our streamlined plastic CNC machining process ensures quality, accuracy, and on-time delivery for your custom components.
Quote & Design Review
Submit your CAD files (STEP, IGES, STL formats) along with technical specifications. Our engineering team provides a detailed quote and DFM analysis typically within 24 hours.
Turnaround: 8-24 hours for quote response
Material Selection & Sourcing
Choose from our extensive inventory of 30+ engineering plastics, or let our material experts recommend the best plastic for your application based on mechanical, thermal, and chemical requirements.
Options: Stock materials or customer-supplied
CNC Programming & Setup
Our experienced programmers create optimized toolpaths using advanced CAM software, selecting appropriate cutting tools, speeds, and feeds specific to each plastic material to prevent heat buildup and ensure precision.
Technology: Advanced CAM software & DFM optimization
Precision CNC Machining
Parts are machined on our multi-axis CNC equipment (3/4/5-axis) by skilled operators who understand plastic material characteristics—managing heat, controlling tolerances down to ±0.03mm, and preventing residual stress.
Capability: 3-axis to 5-axis milling & turning
Quality Inspection & Verification
Every CNC machined plastic part undergoes thorough dimensional inspection using precision measuring equipment (calipers, micrometers, CMM when required). Critical dimensions are verified to ensure conformance to specifications.
Inspection: 100% dimensional verification on critical features
Surface Finishing & Post-Processing
Parts receive specified surface treatments: deburring, edge breaking, polishing, bead blasting, or vapor smoothing. Components are carefully cleaned and packaged to prevent damage during shipping.
Options: Multiple finishing options available
Global Shipping & Delivery
We ship worldwide via reliable carriers with tracking. Free standard shipping available to select regions. Expedited options for urgent projects. Your custom plastic parts arrive safely and on schedule.
Delivery: Global shipping with tracking & insurance
Why Choose BeePlastic for CNC Plastic Milling
✓ Precision You Can Trust
Our tight tolerance machining capabilities ensure your parts meet exact specifications. We routinely achieve ±0.03mm (±0.0012") precision on critical dimensions, verified through comprehensive quality inspection with calibrated measuring equipment.
✓ No Minimum Order Quantity
Whether you need a single prototype or thousands of production parts, we treat every order with equal importance. Our No MOQ policy makes us ideal for product development, R&D projects, low-volume manufacturing, and market testing.
✓ Deep Material Expertise
Not sure which plastic is right for your application? Our engineering team provides free material consultation to help you select the optimal engineering plastic based on mechanical requirements, operating environment, chemical exposure, and budget considerations.
✓ Fast Turnaround Times
We understand the urgency of product development cycles. Our efficient production processes and strategic scheduling enable quick-turn prototyping with typical lead times of 5-10 business days, with expedited options available for urgent projects.
Global Service Network
Based in China's manufacturing hub with 15+ years experience serving European, American, and Australian markets with reliable international shipping.
Competitive Pricing
Direct manufacturer pricing without middlemen markups. Get professional CNC machining services at factory-direct rates with transparent quoting.
Design for Manufacturing Support
Upload your CAD files and receive expert DFM feedback to optimize design for CNC machining, reduce costs, and improve manufacturability.
English-Language Support
Seamless communication with English-speaking team. Clear technical discussions, prompt responses, and detailed documentation for international collaboration.
Surface Finishing Options for CNC Machined Plastics
We offer various surface finishing services to meet your aesthetic, functional, and performance requirements for CNC machined plastic parts.
As-Machined Finish
Clean, precise finish with visible tool marks. Typical surface roughness of Ra 1.6μm (63 μin) or better. Ideal for functional parts where cosmetic appearance is not critical.
Best for: Prototypes, internal components, mechanical parts
Bead Blasting (Media Blasting)
Uniform matte surface finish that removes tool marks and creates consistent texture. Glass bead blasting provides smooth, satin appearance for engineering plastics like ABS, PC, and Nylon.
Best for: Cosmetic parts, housings, enclosures requiring uniform appearance
Mechanical Polishing
Progressive polishing with fine abrasives creates smooth, glossy finish. Improves surface roughness and visual appearance for acrylic, polycarbonate, and other transparent plastics.
Best for: Display components, optical parts, aesthetic applications
Vapor Polishing (Solvent Smoothing)
Ultra-smooth transparent finish achieved through controlled solvent vapor exposure. Creates glass-like clarity on acrylic (PMMA) and polycarbonate (PC) for optical applications.
Best for: Optical components, light guides, transparent windows, lenses
Deburring & Edge Breaking
Remove sharp edges and burrs created during CNC machining for safe handling and assembly. Essential for parts requiring smooth edges and preventing stress concentrations.
Best for: All machined parts, safety-critical components, assembly parts
Custom Surface Treatments
Additional surface treatments available including texturing, painting, printing, and protective coatings. Contact us to discuss specific requirements for your custom plastic parts.
Best for: Specialized applications requiring unique surface properties
CNC Plastic Milling vs Other Manufacturing Methods
CNC Milling vs Injection Molding
✓ Advantages of CNC Milling
- No expensive tooling investment required – Start production immediately without $5,000-$50,000 mold costs
- Ideal for prototypes and low-volume production (1-1000+ parts) – Economic for small quantities
- Design changes are easy and cost-effective – Modify CAD file instead of creating new molds
- Faster time-to-market – No 4-8 week mold manufacturing lead time
- Superior material properties from solid stock – No weld lines, sink marks, or molecular orientation issues
- Tighter tolerances achievable – ±0.03mm vs ±0.1mm typical for molding
- Perfect for complex geometries with undercuts using 5-axis machining
⚠ When to Choose Injection Molding
- High-volume production (10,000+ parts) where tooling costs are amortized
- Thin-walled complex parts that are difficult to machine
- Multiple cavity production requiring identical parts in large quantities
- Lower per-part cost at very high volumes (though total investment is higher)
Consider our injection molding services for high-volume production once your design is finalized.
CNC Milling vs 3D Printing (Additive Manufacturing)
✓ Advantages of CNC Milling
- True engineering-grade material properties – Use actual production materials like PEEK, Delrin, PTFE
- Better surface finish and dimensional accuracy – As-machined finish exceeds most 3D printing processes
- Wider selection of production-grade plastics – 30+ materials vs limited 3D printing options
- No anisotropic weaknesses – Uniform strength in all directions, no layer delamination risk
- Cost-effective for functional parts – Better value for production quantities 10-1000 units
- No support structure removal required – Parts ready after machining and deburring
- Chemical and thermal properties match bulk material – No reduced performance from layer fusion
⚠ When to Choose 3D Printing
- Extremely complex internal geometries (lattice structures, conformal cooling channels)
- Ultra-rapid prototyping (same-day to 1-2 days for simple parts)
- Very small quantities (1-5 parts) where setup time matters more than part cost
- Organic shapes and geometries that are difficult to fixture for machining
Quality Control & Inspection for CNC Machined Parts
Every CNC machined plastic component undergoes rigorous quality inspection to ensure dimensional accuracy, surface finish quality, and conformance to your specifications.
Our Quality Assurance Process
First Article Inspection (FAI)
First part from each production batch undergoes comprehensive dimensional inspection to verify all critical dimensions, tolerances, and features match technical drawings before full production begins.
In-Process Inspection
Operators perform dimensional checks during machining using calibrated measuring instruments (digital calipers, micrometers, height gauges) to catch any deviations early in the process.
Final Quality Inspection
100% visual inspection for surface defects, proper edge breaking, and finish quality. Critical dimensions verified with precision measuring tools. Coordinate Measuring Machine (CMM) inspection available for complex geometries requiring detailed GD&T verification.
Documentation & Traceability
Inspection reports, material certificates, and dimensional data available upon request. Full traceability for aerospace, medical, and other regulated industries.
Comprehensive Plastic Manufacturing Services
Beyond CNC milling, BeePlastic offers a complete range of plastic fabrication services to meet all your custom manufacturing needs.
CNC Turning Services
Precision CNC turning for cylindrical plastic parts: bushings, bearings, rollers, shafts, and custom profiles from engineering plastics.
Plastic Cut-to-Size
Precision cutting of plastic sheets, rods, and bars to exact dimensions with fast turnaround for prototyping and production.
Laser Cutting & Engraving
High-precision laser cutting services for acrylic, polycarbonate, and other thermoplastics. Clean edges and intricate patterns.
Plastic Bending & Forming
Professional thermoforming services for creating angles, bends, and complex shapes in acrylic, polycarbonate, and other thermoplastics.
Plastic Welding & Bonding
Expert plastic welding services for joining thermoplastic components using hot gas, ultrasonic, and solvent bonding techniques.
Injection Molding
High-volume plastic injection molding services for production quantities. Cost-effective for large orders after design validation.
Frequently Asked Questions About CNC Plastic Milling
What is the minimum order quantity for CNC plastic milling?
We have no minimum order quantity (No MOQ). Whether you need a single prototype to test your design or thousands of production parts, we're equipped to handle your project efficiently. This makes us ideal for R&D, product development, low-volume manufacturing, and market testing.
What tolerances can you achieve on CNC machined plastic parts?
Standard tolerances are ±0.13mm (±0.005") for general features. For critical dimensions requiring tighter control, we routinely achieve ±0.03mm (±0.0012") precision depending on part geometry, material properties, and feature location. Tighter tolerances may be achievable for specific applications—contact us to discuss your requirements.
What file formats do you accept for CNC machining quotes?
We accept all standard 3D CAD formats including STEP (.stp, .step), IGES (.igs, .iges), STL, Solidworks (.sldprt), Parasolid (.x_t), and most other CAD formats. 2D technical drawings in PDF or DWG format are helpful for specifying critical dimensions, tolerances, and surface finish requirements.
How long does CNC plastic machining take?
Typical production lead time is 5-10 business days after order confirmation for standard parts. Simple components may be completed faster. Expedited services are available for urgent projects, with some parts achievable in 3-5 days depending on complexity and current capacity. Contact us for rush quotes.
Can you machine custom plastic materials I supply?
Yes, we accept customer-supplied materials for CNC machining. Please contact us in advance with material specifications, dimensions, and any special handling requirements. We'll confirm machining feasibility and provide guidance on optimal stock sizes to minimize waste and reduce costs.
What industries do you serve with CNC plastic machining?
We serve diverse industries including medical devices, aerospace, automotive, electronics & semiconductor, industrial equipment, robotics, laboratory instruments, chemical processing, food processing, and consumer products. Our experience spans from prototype development to low-volume production across all these sectors.
Do you offer design for manufacturability (DFM) feedback?
Absolutely! Our engineering team provides free DFM analysis to help optimize your parts for CNC machining. We'll identify potential issues, suggest design improvements to reduce costs, recommend appropriate materials, and help ensure your parts can be manufactured efficiently while meeting functional requirements.
Which engineering plastics are best for CNC machining?
The "best" material depends on your application. For general mechanical parts: Delrin (POM) offers excellent machinability and dimensional stability. For high-temperature applications: PEEK or PEI (Ultem). For chemical resistance: PTFE or PPSU. For impact strength: Polycarbonate or Nylon. Contact us for material selection guidance based on your specific requirements.
Do you provide material certificates and test reports?
Yes, we can provide material certificates and compliance documentation for most engineering plastics upon request, including material test reports, RoHS compliance, REACH compliance, and material traceability documentation. Additional testing and certifications may be arranged for medical, aerospace, or other regulated applications.
What's the difference between CNC milling and CNC turning for plastics?
CNC milling uses rotating cutting tools to remove material from stationary workpieces—ideal for parts with flat surfaces, pockets, holes, and complex contours. CNC turning rotates the workpiece while a stationary cutting tool shapes it—perfect for cylindrical parts like bushings, shafts, rollers, and tubes. Many parts benefit from both processes for complete machining.
Do you ship internationally? What are the shipping costs?
Yes, we ship worldwide to Europe, America, Australia, and other regions. Free standard shipping is available to select countries and regions. Expedited shipping options available at additional cost—rates depend on package size, weight, and destination. All shipments include tracking information for your peace of mind.
Can you handle both prototype and production quantities?
Absolutely! We specialize in rapid prototyping (single units) through low-to-medium volume production (thousands of units). Our flexible manufacturing approach and no MOQ policy make us ideal for the entire product development cycle—from initial prototypes through market testing and into production. As volumes increase, we can also advise on transitioning to injection molding for cost optimization.
Ready to Start Your CNC Plastic Milling Project?
Get precision CNC machined plastic parts with ±0.03mm tolerances • No Minimum Order • Fast Global Shipping
Upload your CAD files and receive a detailed quote with DFM feedback typically within 24 hours
Contact Our CNC Machining Experts
Have questions about material selection, design optimization, or technical feasibility? Our engineering team is here to help you choose the right plastic materials and CNC machining processes for your application.
Email: beeplastic@beeplastic.com
Serving Europe, America, Australia, and worldwide with 15+ years of plastic machining expertise
Engineering Plastics
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Precision Plastic Parts We've Delivered
From transparent acrylic displays to precision gears, high-temp phenolic components to custom seals
——we machine any plastic, any complexity.
Custom Plastic Fabrication
1pc to 10,000+ | ±0.03mm | No MOQ
General
HDPE
PP
PVC
ABS
Engineering
POM
Nylon
PC
PMMA
High-Performance
PEEK
PEI
PTFE
Composites
FR-4
G10
Flexible
TPU
Silicone
Why Choose BeePlastic?
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Industries: Automotive • Medical • Food • Lab • Semiconductor
Free consultation → beeplastic@beeplastic.com
24H QUOTE DELIVERY
Upload CAD, get quote in 24 hours
NO MOQ REQUIRED
From 1 prototype to high volume
±0.03MM PRECISION
Advanced CNC with full QC inspection
1000+ TONS STOCK
26+ materials ready to ship