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▲ TONGREN CNC
Custom Plastic Machining Service
As a trusted plastic parts manufacturer in China, we provide plastic machining service for customers who need functional, precise, and application-specific plastic parts made from engineering-grade materials.
High Precision Tolerances
Wide Range of Engineering Plastics
Low Volume to Medium Volume
ISO 9001 Certified Quality Assurance On-time DeliveryCustom Machined Plastic Parts
for Functional Applications
As a leading plastic CNC machining China supplier, we manufacture machined plastic parts for projects that require low-friction surfaces, electrical insulation, reduced weight, chemical resistance, or application-specific performance.Typical parts include bushings, spacers, fixtures, housings, and wear components.
Plastic machining is ideal for precise parts in small to medium quantities without the upfront tooling cost of molding.
Bushings
Fixtures
Plates
Insulators
Housings
Custom Components
Spacers
Wear Parts
Plastic Materials We Machine
As an experienced plastic parts supplier, we work with a range of engineering plastics, including commonly used materials for industrial, prototype, and structural applications. Material choice depends on strength, wear behavior, dimensional stability, temperature, and application environment.
POM (Delrin)
Precision, low friction, dimensional stability.
- Rigid and stiff
- Low moisture absorption
- Machines cleanly
Nylon (PA)
Tough, wear-resistant, self-lubricating.
- Impact-resistant
- Wear and fatigue
- Used for bearings
ABS
Cost-effective, impact-resistant, easy to machine.
- Ideal for enclosures
- Paintable, bondable
- Wide temperature
Acrylic (PMMA)
Optical clarity, UV stable, precision.
- Optical clarity
- UV Stability
- Machines smooth
PTFE (Teflon)
Non-stick, chemical resistant, low friction.
- Non-stick surface
- Chemical resistance
- Wide temperature
PC (Polycarbonate)
Impact-resistant, transparent, versatile.
- Impact-resistant
- Transparent option
- Flame-retardant
Typical Plastic Parts We Manufacture
We support both one-off development parts and repeat production machining depending on your project needs.
Get a Custom Plastic Parts Quote →
Bushings & Spacers
Housings & Covers
Wear Parts
Insulators
Gears & Pulleys
Fixtures & Brackets
Prototype Parts
Custom Components
Tolerances and Finish
Plastic parts often require careful process planning because material behavior can differ significantly from metal. We help customers review material suitability, dimensional expectations, and finish quality before production starts.
This helps reduce risk for applications where fit, movement, or insulation performance matters.
Tight Tolerances
Surface Finish Options
As Machined
Polished
Matte Finish
Transparent Edge
Finishes can be customized based on your application and appearance requirements.
Why Finish Matters
When to Choose Plastic Machining vs Injection Molding
Plastic machining is a strong option for lower-volume production, prototype work, or parts that require higher dimensional flexibility. Injection molding is typically a better fit for larger production volumes once the part design is stable.
Plastic Machining
Prototypes & functional partsLow volume productionNo tooling costFast turnaroundEasy design changesTight tolerancesComplex geometry
Learn More >
Injection Molding
Mass productionLowest unit costMold/tooling requiredConsistent qualityHigh repeatabilityBest for 5,000+ pcsProduction ready
Learn More >Need advice on materials, tolerances, or process? Contact us.
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Request a Quote
Send us your drawing, material, size, quantity and application details. We will review your project and provide a quotation with a practical review and machining recommendations.
STEP 01
Drawing Review
We review your drawing and requirements.
STEP 02
Material Selection
Choose the best engineering plastic for your application.
STEP 03
Machining
Precision CNC machining with strict quality control.
STEP 04
Inspection & Delivery
Quality inspection and on-time delivery.
Why Choose us for Plastic Machining?
Precision Machining
Tight tolerances and precise finish.
Wide Material Options
Engineering-grade plastics available in stock.
Quality Assurance
ISO 9001 certified quality system.
Fast Turnaround
Fast lead times from prototype to production.
