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Custom Plastic Parts
Custom Rubber Parts
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Custom Rubber Blanking Cap
Rubber Blanking Caps for Reliable Sealing
Rubber blanking caps provide secure sealing for unused ports, threaded holes, and shell openings on mining gearboxes, hydraulic manifolds, and machinery housings. They help prevent oil leaks, coolant loss, dust contamination, and moisture ingress during storage, assembly, or operational downtime.
Key Benefits of Custom Rubber Blanking Caps:
- Positive sealing lip – Forms a leak-proof barrier for hydraulic oil, coolant, and air
- Thread-protecting design – Soft rubber prevents cross-threading and corrosion
- Snap-in retention ribs – Multiple interference ribs ensure vibration-resistant hold
- Flush or protruding profiles – Fit countersunk holes or allow external marking
Common Molded Blanking Caps Material
The performance of rubber blanking caps depends on fluid compatibility and pressure retention. At Flexiparts, we custom mold caps from rubber materials suited to your application, including:
- NBR
- EPDM
- FKM
- CR
Partner with Flexiparts for Custom Rubber Solutions
Every rubber blanking cap is molded to your exact port geometry, including metric/imperial threads, NPT/BSP tapered ports, square or rectangular openings, durometer, and optional color coding for maintenance identification. Flexiparts produces no stock items, ensuring each cap meets your specific operational and environmental requirements.
How To Work with Us
The key to great custom parts is collaboration. As a custom molding manufacturer, our enginnerss will stay connected with you throughout the process, and deliver products that meet your expectations.
- Send us your 2D/3D files or product concept, for an accurate quote, please send us materials, order quanity and surface requirement.
- We review your design,and send you a clear cost within 24 hours.
- Our tooling team builds the mold to your specifications, then send you T1 samples for confirmation.
- Once sample approved, we run full production under strict quality control
- Your finished parts are packaged securely and shipped to your location on time.
Related Products
- More Rubber Cap
Start Your Project!
Need custom rubber, plastic, or polyurethane parts? FlexiParts offers prototyping and on-demand, low to high-volume production of high-quality, durable components. Whatever your needs, we deliver reliable custom parts on time and within budget. Start your project with us today!
