Precision CNC Machining & Custom Fabrication Services
PartsMake provides contract manufacturing for custom metal and plastic components. From one-off prototypes to high-volume production, we help engineering and procurement teams produce reliable parts with tight tolerances and consistent material performance.
±0.005 mm
Precision tolerance
5-axis
Complex geometry capability
24–48 h
Typical quotation timing
Material focus
Tough, chemically resistant, low-friction PE components
Material selection
Engineering with Polyethylene
Selecting the correct Polyethylene grade is critical when a component must withstand wear, chemical exposure, impact, or repeated sliding contact. We machine both Low-Density Polyethylene (LDPE) and High-Density Polyethylene (HDPE) to match the design requirement.
HDPE for structural performance
Higher stiffness, impact strength, heat resistance, and excellent CNC machinability make HDPE suitable for wear strips, chemical-resistant guides, tanks, and structural components.
LDPE for flexibility and elongation
LDPE is more ductile and flexible, making it a practical choice for flexible packaging, seals, impact absorption, and applications requiring high elongation.
| Property | LDPE | HDPE |
|---|---|---|
| Density | 0.910–0.925 g/cm³ | 0.940–0.970 g/cm³ |
| Tensile Strength | Lower: 8–20 MPa | Higher: 20–35 MPa |
| Hardness | Shore D 40–50 | Shore D 60–70 |
| Heat Resistance | Moderate | Superior |
| Machinability | Ductile; requires sharp tools | Excellent for CNC |
| Typical Use | Flexible packaging, seals | Wear strips, guides, tanks |
Process note: Polyethylene has a relatively low melting point. Our programming uses aggressive chip clearing, sharp tooling, and optimized feed rates to prevent deformation and surface melting.
Manufacturing platform
CNC machining capabilities built for production
Our calibrated machining centers support simple 3-axis milling through complex 5-axis simultaneous machining, with processes selected around geometry, tolerance, volume, and material behavior.
| Capability | Manufacturing Range | Typical Applications |
|---|---|---|
| CNC Milling | 3-axis, 4-axis, 5-axis | Housings, plates, brackets |
| CNC Turning | Precision and multi-axis | Shafts, bushings, pins |
| 5-Axis Machining | Simultaneous and positional | Complex surfaces |
| Mill-Turn | Milling and turning in one setup | Complex cylindrical parts |
| Swiss Machining | Up to Ø32 mm | Miniature shafts, connectors |
| Precision Grinding | Surface and cylindrical | Wear surfaces |
| EDM | Wire and sinker | Hardened steel profiles |
Milling size
1200 × 800 × 600 mm
Turning diameter
Ø500 mm
Standard tolerance
±0.01–0.05 mm
Precision tolerance
Down to ±0.005 mm
Surface roughness
Ra 0.4–3.2 μm
Applications
Where Polyethylene performs best
HDPE CNC components
Structural blocks, wear strips, chemical-resistant guides, machine bases, tanks, and custom fixtures.
Container-class injection parts
PE container and packaging applications where chemical resistance, toughness, and low weight are important.
Industrial wear components
Low-friction wear blocks, liners, rollers, slide plates, bushings, and guide components for repeated movement.
Process suitability
The right process for the right part
CNC machining
Recommended for tight tolerances down to ±0.005 mm, complex internal geometries, and HDPE parts where structural integrity is vital.
Sheet metal fabrication
Efficient for enclosures, panels, and brackets based on uniform material thickness.
Hybrid assemblies
Combine a CNC-machined HDPE wear block with a laser-cut steel bracket for a complete, cost-effective assembly.
Beyond CNC
Precision sheet metal fabrication
Our fabrication workflow integrates laser cutting, precision bending, welding, and hardware installation to produce enclosures, chassis, and structural frames.
Laser cutting
Fiber laser, up to 3000 × 1500 mm
Material thickness
Up to 25 mm carbon steel
Bending
Up to 200 tons
Welding
TIG, MIG, spot, laser
Hardware
PEM nuts, studs, and standoffs
Material inventory
Materials ready for production
Consistent material availability helps minimize lead times across prototype and production programs.
- Engineering plastics: POM, PEEK, PTFE, Nylon, PC, ABS, HDPE, and LDPE
- Aluminum: 6061-T6, 7075-T6, 5052
- Stainless steel: 303, 304, 316L, 17-4PH
- Steel and alloys: 1018, 4140, D2, H13
- Other metals: Titanium Grade 5, copper, brass, Inconel
Quality assurance
Reliable parts backed by inspection
Every production run is subject to quality control standards designed to maintain dimensional consistency from prototype through full production.
Dimensional verification
CMM inspection and optical measurement.
Surface and hardness
Specialized testing for wear surfaces and material treatments.
Documentation
FAI reports, full dimensional reports, and material certificates available on request.
Traceability
Batch control supports consistent quality across every run.
Engineering review
DFM guidance before production
Our engineering department reviews every design file for manufacturability and identifies practical DFM adjustments that can reduce cycle time, material waste, and production risk.
Discuss Your DesignCommon questions
Polyethylene machining FAQ
Request for quotation
Turn your Polyethylene design into a production-ready part
Submit your technical drawings and our engineering team will review manufacturability, material selection, tolerances, and the most cost-effective production path.
Accepted files: STEP, IGES, and PDF
Include: material, quantity, surface finish, and tolerance requirements
Typical response: detailed quotation within 24–48 hours
Email:
Address:
Send your project details
Our team will assess your requirements and respond with next steps.