Custom Plastic Pump Covers
Plastic pump covers protect internal components in pumps handling water, chemicals, slurries, and process fluids. Machined versions suit applications where molded parts fall short on tolerance, material options, or low-volume needs.
- Part Size
- 50–800 mm
- Sealing Faces
- ±0.05 mm
- Min. Order
- 1 pc
Material Options for Pump Environments
Selection starts with the fluid, temperature, and pressure conditions. Filled grades add dimensional stability or reduce moisture uptake when covers must maintain flatness under load.
POM
General wear resistance for common water and light chemical service.
UHMW-PE
Abrasion resistance for slurry and high-wear pump applications.
PVDF & PTFE
Chemical resistance against aggressive fluids and corrosive media.
PEEK & PPS
Higher-temperature performance with good mechanical strength.
Filled Grades
Added for dimensional stability and reduced moisture uptake where covers must hold flatness under load.
CNC Machining Capabilities
PlasticCNCPro produces pump covers through 3- and 5-axis milling plus turning. Threading, drilling, and slotting are completed in the same setup to keep features aligned.
Typical Work
- Sealing faces held to ±0.05 mm
- O-ring grooves
- Mounting holes and ports
50–800 mm
Part range across
3 mm+
Wall sections
3 & 5-Axis
Milling plus turning
Same Setup
Threading, drilling, slotting
Surface and Sealing Requirements
Pump covers often need flat sealing surfaces and controlled roughness. Threads receive appropriate chamfers and deburring so gaskets seat without damage.
Standard finishes for sealing faces
Improves contact on critical faces
Further refines flatness where needed
Low-Volume and Replacement Work
Many pump OEMs and service companies order covers in quantities from 1 to 200 pieces. Machining replaces obsolete molded parts, allows material upgrades, or supports equipment redesigns where tooling costs are not justified.
Replacement covers for older pumps frequently require reverse engineering from samples or worn originals.
Order Quantities
1 – 200 pcs
No minimum order quantities required
Quality Checks and Documentation
Each batch receives first-article inspection with CMM reports on critical dimensions. Material certificates and traceability records are supplied when requested. Parts ship with protective packaging to prevent scratches on sealing surfaces during transit.
First-Article Inspection
CMM reports on critical dimensions for every batch.
Material Certificates
Traceability records supplied when requested.
Protective Packaging
Prevents scratches on sealing surfaces during transit.
Project Fit
This service suits automation integrators, chemical equipment builders, water treatment plants, and pump repair firms needing consistent plastic covers without minimum order quantities.
Buyers typically supply 2D drawings with tolerances or 3D models plus material and fluid details.
Request a Quote
Send drawings, material preference, quantity, and any special requirements to the team. Include application information so suitable polymer grades and machining approach can be confirmed.
- 2D drawings with tolerances or 3D models
- Material preference
- Quantity and special requirements
- Application and fluid details