Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Custom made soft silicone rubber o rings for mechanical seal
CUSTOM RUBBER & SILICONE MANUFACTURING
Custom made soft silicone rubber o rings for mechanical seal
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
Soft silicone rubber O rings form a compressible ring within a custom sealing arrangement. The selected diameter and cross section should correspond to the receiving groove, while the compound hardness is chosen for the intended joint. A softer feel does not automatically mean that more compression is beneficial.
The groove needs enough space for the rubber to deform when the adjoining parts close. Excessive squeeze or an unsuitable gap can pinch the ring, while insufficient contact can leave it unable to perform its intended sealing role. Consider the pressure, movement, medium, and temperature as part of the complete design rather than selecting by touch alone.
Install the ring cleanly without twist, keeping it seated while the mating parts are brought together. Avoid stretching it unnecessarily or pulling it across a sharp feature. Check the finished assembly for the required operation under its actual conditions. When servicing the seal, inspect the groove for damage and remove residue before fitting another ring so the replacement has the intended support around its circumference.
- Material options
- Silicone. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Silicone: 20–80 Shore A. Consider the pressure, movement, medium, and temperature as part of the complete design rather than selecting by touch alone.
- Custom dimensions
- The selected diameter and cross section should correspond to the receiving groove, while the compound hardness is chosen for the intended joint.
- Fit & assembly
- Install the ring cleanly without twist, keeping it seated while the mating parts are brought together.
- Use & inspection
- When servicing the seal, inspect the groove for damage and remove residue before fitting another ring so the replacement has the intended support around its circumference.
Photos illustrate structure or material only. The selected diameter and cross section should correspond to the receiving groove, while the compound hardness is chosen for the intended joint. 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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