Custom Plastic Washers, Machined to Your Drawing
PlasticCNCPro produces plastic washers through direct CNC machining from solid stock. This approach supports non-standard diameters, thicknesses, and hole patterns without tooling investment.
- Diameter Tolerance
- ±0.05 mm
- Tight Tolerance
- ±0.02 mm
- Prototype From
- 5 pcs
Setup
Single-Setup Milling
Inspection
CMM Verified
Quote Back
2 Business Days
Material Options for Washers
We machine washers from POM, Nylon 6/6, UHMW-PE, PEEK, PTFE, PPS, and filled grades. Selection depends on required chemical resistance, temperature range, load-bearing capacity, and moisture absorption limits. We review application details to recommend grades that maintain flatness and dimensional stability after machining.
POM
Balanced stiffness and low friction for general mechanical washers.
Nylon 6/6
Tough and wear-resistant for load-bearing and impact-prone assemblies.
UHMW-PE
Excellent abrasion resistance and low friction for sliding contact.
PEEK
High temperature and chemical resistance with tight-tolerance capability.
PTFE
Near-universal chemical inertness and the lowest friction of the group.
PPS
Dimensionally stable under heat and moisture, suited to precision bores.
Filled Grades
Glass, carbon, or PTFE fillers to tune strength, creep, and lubricity.
Selection Support
Share your application conditions and we recommend a grade that holds flatness after machining.
CNC Processes Applied to Washers
Washers begin as bar, sheet, or rod stock. Each operation is chosen to match the geometry and the material's machining behavior.
Typical starting stock
Bar · Sheet · Rod
-
01
Milling
Creates outer diameters and inner bores in one setup for consistent concentricity.
-
02
Turning
Handles concentric features on round parts with repeatable diameter control.
-
03
Drilling, Tapping & Countersinking
Adds mounting holes, threads, or recessed seats when the design requires them.
-
04
Slotting
Produces keyways or alignment features on request.
Tolerances and Dimensional Control
Standard production holds ±0.05 mm on diameters and thicknesses for most polymers. Tighter requirements down to ±0.02 mm are available on PEEK and PPS parts. We check flatness, parallelism, and concentricity on every batch using coordinate measuring equipment before release.
Standard Range
±0.05 mm
Diameters and thicknesses across most polymers.
Tight Range
±0.02 mm
Available on PEEK and PPS parts.
Surface and Edge Requirements
Machined faces receive standard finishes suitable for sealing against metal or plastic mating surfaces. We can add chamfers, radii, or polished edges where washers contact moving components. Deburring removes all sharp corners to prevent installation damage or particle generation.
Finish Options
- Standard machined finish for sealing against mating surfaces
- Chamfers and radii on contact edges
- Polished edges for moving-component contact
- Full deburring to remove sharp corners and reduce particle generation
Volume and Project Fit
Prototype orders start at five pieces. Low-volume runs cover 50 to 500 units. Repeat production supports monthly or quarterly releases with consistent material lot tracking. This route suits equipment builders who need parts before committing to molds or who require modifications to existing designs.
Prototype
From 5 pcs
Validate geometry and material before scaling.
Low Volume
50 – 500 units
Bridge production without tooling investment.
Repeat Production
Monthly / Quarterly
Scheduled releases with material lot tracking.
Industry Uses
Plastic washers appear in pump housings, valve assemblies, semiconductor handling fixtures, medical device frames, and food-processing conveyors. They replace metal versions where corrosion, weight, or electrical isolation matters. We have supplied parts for automation grippers, optical mounts, and chemical-resistant seals.
Selecting the Right Approach
CNC machining suits washers with complex profiles, non-standard IDs, or materials that do not injection-mold well. It also works when annual volumes stay below several thousand units or when designs change frequently. We compare lead times and costs against molding options during quotation.
Choose CNC When
Complex profiles, non-standard IDs, hard-to-mold polymers, or frequently changing designs.
Compare at Quotation
We weigh lead time and cost against molding for annual volumes below several thousand units.
Submit Project Details for Quotation
Send 2D drawings or 3D files with material, quantity, and tolerance notes. Include application conditions such as temperature, chemicals, or load. We return a fixed quotation and lead time within two business days.
- 2D drawings or 3D files
- Material, quantity, and tolerance notes
- Application conditions: temperature, chemicals, load
Email: info@plasticcncpro.com
Address: 29 Fuxing Road, Dongguan City, Guangdong Province, China