Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Dustproof USB rubber plugs/black rubber seal covers
CUSTOM RUBBER & SILICONE MANUFACTURING
Dustproof USB rubber plugs/black rubber seal covers
A custom component for your assembly.
Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.
- Factory direct
- Made to order
- Drawing & sample support
Share the part, its application and your estimated quantity.
Customize the fit, material and finish
Material & hardness
Selected for the contact, temperature and movement
Color & finish
Define the visible surfaces and intended color
Shape & dimensions
Develop holes, lips and walls around the mating parts
Mounting & fit
Match the attachment and installation method
Product Overview
USB rubber plugs provide custom molded covers for unused connector openings. The black rubber profile should match the actual USB type and the surrounding housing, including any recess that changes the seating depth. The closure should locate without applying unwanted force to electrical contacts.
Check the opening shape and accessible area for removal. Similar USB names do not identify interchangeable port dimensions, and a cover intended for a flush connector may not fit a recessed one. The retaining portion should match the intended receiving surface rather than being forced deeper to stay in place.
Keep the plug clean before insertion so dust is not carried into the port. Remove it before connecting a cable and store it where the contact area remains free of grit. Inspect the rubber for tears or loosening after repeated use. A dust-cover function does not establish a waterproof or electrical-protection rating for the device. The complete port and housing arrangement determines those requirements, and replacements should preserve the exact connector fit.
- Material options
- Rubber compound options, customized alongside the profile and contact conditions.
- Hardness selection
- Solid rubber options: 30–90 Shore A. Check the opening shape and accessible area for removal.
- Custom geometry
- The black rubber profile should match the actual USB type and the surrounding housing, including any recess that changes the seating depth.
- Fit evaluation
- The closure should locate without applying unwanted force to electrical contacts.
- Color & OEM
- Custom colors; identification clear of connectors and removal features.
Photos illustrate structure or material appearance only. The black rubber profile should match the actual USB type and the surrounding housing, including any recess that changes the seating depth. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.
From part requirements to production
01
Define the part
Identify key dimensions, mating surfaces and quantity
02
Review material & tooling
Agree the compound and manufacturing approach
03
Evaluate the sample
Review the fit and agreed requirements in the assembly
04
Produce & inspect
Manufacture and check against the approved requirements
Review the intended assembly
Material and structure
Consider hardness together with wall thickness and support.
Installation
Check access, mating dimensions and the fitting sequence.
Ordering this custom component
Can the shape be adjusted to my mating parts?
Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.
Which details should be agreed before tooling?
Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.
Can a sample help define the replacement?
A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.
How is the quotation for this part determined?
The material, part geometry, tooling, quantity and finishing affect the quotation. Include the intended batch size and delivery destination when describing your requirements.
DISCUSS THIS COMPONENT
Describe the part you need.
Share the fit, operating conditions and quantity with our manufacturing team.
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