Working conditions
Identify temperature, contact fluids and repeated movement.

Custom manufacturing example · Customized USB charging port anti-dust cover
CUSTOM RUBBER & SILICONE MANUFACTURING
A custom component for your assembly.
Define the mating surfaces, dimensions and working conditions. ETOL manufactures the part to the agreed design and material.
Share the part, its application and your estimated quantity.

Selected for the contact, temperature and movement
Define the visible surfaces and intended color
Develop holes, lips and walls around the mating parts
Match the attachment and installation method
A custom USB charging port anti-dust cover closes the access point used for charging when no cable is connected. Its geometry should suit the port recess and the surrounding device surface, with enough exposed area for the user to remove it comfortably. Frequent charging makes that small handling detail part of the everyday product experience.
The cover should leave a clear path for the charging plug once opened or removed. Include the plug body in the fit review, since it can be wider than the connector itself. The closed position also needs a definite seating surface so the user can tell whether the cover is fully fitted without pushing against the connector inside.
Size, material, and color can be customized around the device. Keep the engaging portion free of pocket lint or other debris before replacing it. A dirty cover can carry contamination toward the port during closure. If the edges become distorted or the fit loosens, use a correctly matched replacement rather than forcing the cover deeper into the opening.
Photos illustrate structure or material appearance only. The closed position also needs a definite seating surface so the user can tell whether the cover is fully fitted without pushing against the connector inside. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.
Identify key dimensions, mating surfaces and quantity
Agree the compound and manufacturing approach
Review the fit and agreed requirements in the assembly
Manufacture and check against the approved requirements
Identify temperature, contact fluids and repeated movement.
Consider hardness together with wall thickness and support.
Check access, mating dimensions and the fitting sequence.
Yes. Show the receiving opening, contact surfaces and clearance limits. We can review the dimensions and retaining features around the intended fit.
Agree the critical dimensions, material, hardness, visible surfaces and sample requirements. Explain how the part is installed and which interfaces control its function.
A sample can help explain the structure. Compare it with the assembly because wear, swelling or compression may have changed its original dimensions.
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
Share the fit, operating conditions and quantity with our manufacturing team.