Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Custom molded silicone rubber o ring/silicone seal ring
CUSTOM RUBBER & SILICONE MANUFACTURING
Custom molded silicone rubber o ring/silicone seal ring
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
A silicone seal ring needs room within the joint for its section to compress. The groove and adjoining clearance establish that space. Choosing a larger section to make a closure feel tighter can change where the rubber moves rather than improve the intended contact.
Examine the joint at its designed closed position. Identify any shoulder or hard stop that controls the gap, then relate the ring section to the space remaining around it. The section should stay within its supported region instead of being forced toward an opening or between moving hard edges.
Custom ring dimensions can follow this geometry, with the silicone formulation chosen for the sealed medium and operating conditions. Check representative mating components together where their dimensions vary. A fit assessment should include the smallest available section space, not only the easiest combination to assemble.
During service, inspect for a pinched ridge or material displaced out of its seat. Compare that pattern with the closed joint before selecting a replacement. Restore the intended groove and section relationship rather than treating extra tightening or a second ring as a way to correct an uncertain gap.
- Material options
- Silicone. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Silicone: 20–80 Shore A. The section should stay within its supported region instead of being forced toward an opening or between moving hard edges.
- Custom dimensions
- The groove and adjoining clearance establish that space.
- Fit & assembly
- A fit assessment should include the smallest available section space, not only the easiest combination to assemble.
- Use & inspection
- During service, inspect for a pinched ridge or material displaced out of its seat.
Photos illustrate structure or material only. Choosing a larger section to make a closure feel tighter can change where the rubber moves rather than improve the intended contact. 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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