High-desity Polythylene - HDPE Machining Service
Get reliable, functional HDPE machining part for a wide range of applications.
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We Provide HDPE Machining Services Specific to Your Needs!
We support prototyping and full-scale production for HDPE CNC machining. We've been machining HDPE for years and understand how to get clean edges, tight tolerances, and repeatable HDPE, we know how to manage HDPE's flexibility and avoid common warping issues to offer HDPE machining parts that fit your requirement.
- Rapid prototyping and low-volume production
- Tight-tolerance machining down to ±0.05mm
- Post-processing: tapping, threading, polishing
- Custom surface finishes and inserts
- Fast turnaround and responsive engineering support
What is Machined HDPE
Machined HDPE (High-Density Polyethylene) is a thermoplastic known for being lightweight, impact-resistant, and chemically stable. It’s also non-absorbent and handles moisture and many corrosive substances. HDPE is relatively easy to machine, and it is often used in water systems, food processing setups, or outdoor applications.
Machined HDPE Grades We Work With
We work with a range of HDPE grades for different engineering needs. Below are the HDPE types we machine most often:
- Standard HDPE: The basic HDPE form, normally in white color, and its the most widely used HDPE material in CNC machining. It’s easy to machine and weld, and highly resistant to chemicals and moisture.
- HDPE with UV Stabilization: UV-stabilized and suited for outdoor use. We often machine this grade for parts exposed to sunlight, such as tanks, liners, and outdoor equipment components.
- Ultra-High-Molecular-Weight HDPE (UHMWPE): Offers better impact strength and wear properties than standard HDPE. Ideal for parts that undergo repeated stress or sliding friction.
- Fiber Reinforcement HDPE: With fibers such as carbon or glass to enhance HDPE strength and stiffness. It is often used for construction materials and automotive components.
Types of HDPE Machining We Offer
Machined HDPE Properties
Below is the key properties for HDPE when used in CNC machining applications, the data shall change based on HDPE grades and the adding filler.
| Item | Value |
|---|---|
| Density | 0.93 – 0.97 g/cm³ |
| Tensile Strength | ~20 – 37 MPa |
| Flexural Modulus | ~700 – 1,400 MPa |
| Elongation at Break | ~100 – 1,000% |
| Melting Point | ~130°C |
| Continuous Use Temperature | ~80 – 100°C |
| Water Absorption | <0.01% |
Key Benefits fo HDPE Machining
- HDPE has excellent chemical resitance, it can expose to acides, bases, and many solvents.
- It is lightweight due to low density, yet strong with solid mechanical strength for everyday use.
- HDPE has low mosisture absorption rate, so it remains dimensional stable even in humid or wet conditions.
- HDPE has non-stick and low friction surface that reduces wear and drag in dynamic applications.
- With good impact resistance, HDPE can withstand repeated stress or sudden impacts.
Limitations of HDPE Machining
- HDPE has low melting point, it starts to soften at relatively low temperature (~130°C), so it is not suitable for high-heat environments and requires careful machining to avoid material deformation.
- Due to HDPE flexibility and thermal expansion, HDPE is not ideal for tight tolerances requirement.
- HPDE has a low surface energy, making it difficult to glue, paint, or bond without special surface treatments.
Popular HDPE Machined Part
- Wear strips
- Guide rails
- HDPE cutting boards
- Spacer blocks
- Food grade sheets
- Protective covers
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