Plastic CNC Machining

Our plastic CNC machining services focus on providing high-precision, high-quality customized plastic parts solutions for various industries. With advanced CNC lathes and milling machines, we are able to process a variety of engineering plastics such as POM, ABS, PC, PEEK, nylon, etc., with an accuracy of up to ±0.005mm. Whether it is small batch prototyping or large-scale production, we can meet your needs and provide a variety of surface treatment options to ensure the best product performance and appearance.

plastic materials 570x308 2
ImageNameDescriptionPriceDetailStart Project
POM_Materials_600x400POM

(Delrin/Acetal)

High stiffness, high accuracy, low friction, easy to machine.$$Browse POM(Delrin/Acetal) Materials>>Get Instant Quote>>
Nylon_Materials_600x400NylonExcellent mechanical properties, thermal, chemical and abrasion resistant.$$ Browse Nylon Materials>>Get Instant Quote>>
ABS_materials_600x400ABSCommon thermoplastic, impact resistant, easy to machine.$$ Browse ABS Materials>>Get Instant Quote>>
PEEK Parts 01PEEKHigh-performance thermoplastic, very high strength, thermal and chemical resistant.$$$Browse PEEK Materials>>Get Instant Quote>>
PTFE Parts 04PTFE

(Teflon)

Low friction, chemical and thermal resistant.$$Browse PTFE(Teflon) Materials>>Get Instant Quote>>
PC_materials_600x400PC

(Polycarbonate)

High toughness, excellent impact strength, transparent.$$$$ Browse PC(Polycarbonate)
Materials>>		Get Instant Quote>>
PE_Materials_600x400PE

(Polyethylene)

Excellent strength-to-weight ratio, impact and weather resistant.$$ Browse PE(Polyethylene) Materials>>Get Instant Quote>>
PVC Parts 06PVCExcellent chemical and weather resistance and good toughness.$$Browse PVC Materials>>Get Instant Quote>>
PMMA_Materials_600x400PMMA

(Acrylic)

Transparent rigid plastic often used as a substitute for glass.$Browse PMMA(Acrylic) Materials>>Get Instant Quote>>
PP_materials_600x400PP(Polypropylene)Excellent chemical resistance. Food-safe grades available.$Browse PP(Polypropylene) Materials>>Get Instant Quote>>
carbon_fiber_materials_600x400Carbon FiberVery light weight and high strength$$Browse Carbon Fiber Materials>>Get Instant Quote>>

What are the methods of CNC machining Plastic?

We can flexibly respond to various plastic materials and parts requirements through a variety of CNC machining methods, providing you with efficient and reliable customized services. There are mainly the following methods for CNC machining plastics:

CNC_Machining_Plastic_600x800_2

– Features: Uses rotating tools to remove materials, suitable for complex 2D and 3D shape processing.
– Applicable materials: Engineering plastics such as POM, ABS, PC, nylon, PEEK, etc.
– Application scenarios: Parts that require high precision such as housings, brackets, inserts and mechanical parts.

– Features: Removes materials by rotating the workpiece and using fixed tools, suitable for cylindrical or symmetrical parts processing.
– Applicable materials: Plastics such as PVC, PE, PP, etc.
– Application scenarios: Pipe fittings, shaft parts, annular parts, etc.

– Features: Suitable for the processing of small, complex, high-precision parts, with extremely high dimensional stability.
– Applicable materials: high-performance plastics such as PEEK and PTFE.
– Application scenarios: medical devices, electronic components and small mechanical parts.

– Features: can process complex geometric shapes, reduce multiple clamping, and improve processing accuracy.
– Applicable materials: plastics with complex shapes such as PC, PEEK, PMMA, etc.
– Application scenarios: optical parts, complex industrial equipment components, etc.

– Features: high-speed tools and small cutting depths are used to reduce heat accumulation and protect heat-sensitive plastics.
– Applicable materials: PMMA (acrylic), PC and other plastics that are easily deformed by heat.
– Application scenarios: transparent parts, optical parts, display panels, etc.

– Features: used to drill holes or tap threads on plastic parts, often used in conjunction with milling or turning.
– Applicable materials: most plastics.
– Application scenarios: pipe joints, parts fixing holes, etc.

What factors should I consider when selecting plastics for CNC machining?

When choosing plastics for CNC machining, it is necessary to comprehensively consider material properties, processing characteristics, and actual application requirements. The following are key considerations:

 1. Material properties
Consider strength and toughness, heat resistance, chemical resistance, friction and wear resistance, and transparency according to the performance requirements of the parts. For example, POM or nylon can be selected for high strength requirements, PEEK or PTFE is suitable for high temperature environments, PVC or PTFE is selected for chemical corrosion resistance, and PC or PMMA is suitable for parts that require transparency.

2. Processing characteristics
When choosing plastics for CNC machining, processing characteristics are crucial. It is necessary to consider the dimensional stability of the material (such as POM and PEEK have high precision), processing difficulty (such as PEEK requires professional equipment and experience), and heat sensitivity (such as PMMA is easy to deform and requires high-speed and low-heat processing) to ensure processing quality and efficiency.

3. Application requirements
According to the application requirements, consider environmental conditions (such as extreme temperatures, moisture or corrosion), functionality (such as electrical insulation, impact resistance or lightweight), and appearance requirements (such as smooth surface and color processability) to ensure that the material meets the performance and aesthetic requirements of the specific use scenario.

4. Cost
When choosing CNC processing plastics, the cost should be considered comprehensively. High-performance plastics such as PEEK are more expensive, but suitable for specific needs, while ABS and POM have a higher cost-effectiveness.

CNC_Machining_Plastic_600x800_2

What We Can do ?

Rapid Protos has a rich selection of materials, high-precision processing capabilities, complex parts customization, and fast delivery capabilities in plastic CNC machining. It can provide customers with a one-stop solution from material selection to finished product delivery to meet the customized needs of various industries.

Diverse Material Selection

Rapid Protos can process more than 100 engineering plastics and high-performance plastics including POM, ABS, PC, PMMA, nylon, PEEK, etc. Our professional team will recommend the most suitable materials according to customer needs to ensure the best balance between part performance and cost.

High-precision Machining Capabilities

Our advanced equipment and experienced technical team can achieve high-precision machining of plastic parts with a tolerance of up to ±0.005mm, meeting the needs of industrial and consumer products with extremely high requirements for size and complex design.

Customized Machining of Complex Parts

Whether it is a complex prototype or a precise functional part, we can meet the customized production needs of complex parts through 5-axis CNC machining technology, professional processes and a variety of post-processing methods.

Fast Delivery and Flexible Production

Rapid Protos has highly flexible production capabilities, which can be completed efficiently from rapid prototyping to mass production. We ensure short delivery cycles to help customers accelerate product development and market promotion.

Finishes and Post-Processing Options

Surface treatments on plastic parts are used to enhance their appearance, functionality or durability. The choice of surface treatment depends on the type of plastic, intended application and desired results. Here are some common surface treatments for plastic parts:

  • Polishing
  • Spraying
  • Silk screen printing
  • Laser engraving
  • Electroplating
  • Sandblasting
  • Thermal transfer
  • UV coating
plastic parts

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Frequently Asked Questions

Plastic machining is a manufacturing process that involves cutting unwanted geometry from a raw block of plastic, bit by bit with a computer numerically controlled (CNC) milling tool, very precisely and allows complex parts to be produced with great accuracy.

The cost of plastic CNC machining depends on the complexity and size of the part and the type of plastic used. These variables will affect the type of machinery needed, the time it takes to produce the part, and the cost of raw materials.

Upload drawings and requirement information to get a detailed CNC machining quote.

Common plastics suitable for CNC machining include POM, ABS, PC, nylon, PEEK, PMMA, etc. The choice of material depends on the functional requirements of the part, such as strength, heat resistance or transparency.

The tolerance of plastics usually depends on the material properties and processing conditions. Rapid Protos can achieve an accuracy of ±0.05mm or even higher, but it needs to be confirmed according to the specific design.

Some plastics may produce tiny burrs during machining. We will use processes such as deburring, polishing or sandblasting to ensure a smooth surface of the parts.

The thermal expansion and hygroscopicity of the material will affect the dimensional stability. We will select the right materials, such as POM and PEEK, to ensure accuracy according to the use environment.

Plastic CNC machining is more suitable for small batches or customized needs, but for medium batches, we can also provide cost-effective solutions.

A variety of surface treatment methods can be provided, including polishing, spraying, silk screen, laser engraving, etc. to meet appearance and functional requirements.