Working conditions
Identify temperature, contact fluids and repeated movement.

Custom manufacturing example · Rubber usb Protection Cap USB Port 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 USB Port Cover provides a custom closure for an interface that is not connected during normal use. Its structure, size, hardness, material, and color can follow the actual device housing. USB connector formats and enclosure recesses vary, so the fitting profile needs to match the specific opening.
Plan the cover around the access required when a cable is connected. The exposed gripping area should remain reachable without blocking nearby ports, controls, or panel edges. A cover that fits the connector opening but cannot be removed conveniently may not suit the assembled device.
Before fitting, clear loose dust from the surrounding housing and inspect the cover's insertion area. Use its intended orientation and controlled pressure rather than forcing it past resistance. When removing it, use the designed handling feature instead of placing a pointed tool inside the connector. Keep the removed cover clean and check for damage before reuse. The device's overall protection depends on the complete enclosure and should not be inferred from the presence of a single port cover.
Photos illustrate structure or material appearance only. USB connector formats and enclosure recesses vary, so the fitting profile needs to match the specific opening. 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.