Working conditions
Identify temperature, contact fluids and repeated movement.
Custom manufacturing example · Molded round rubber o-ring/rubber seal washer for machine
CUSTOM RUBBER & SILICONE MANUFACTURING
Molded round rubber o-ring/rubber seal washer for machine
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 rubber seal washer for machine use provides an annular contact area around a matching opening or fastener. Its inner and outer dimensions locate the contact band, while thickness determines how it responds as the adjoining faces close. These dimensions should follow the machine joint rather than the available space around it alone.
Check whether the washer bears against a flat face, recess, or shoulder. A narrow supporting surface can leave part of the rubber unsupported and allow it to spread into a gap. Material choice should reflect the fluid, temperature, and movement involved, with a separate assessment where the washer must perform a sealing duty.
Center the part before tightening and keep it clear of rotating hardware unless that contact is part of the design. Turning a fastener directly against unrestrained rubber can drag or twist the washer. During service, inspect for extrusion at the inner edge and uneven compression across the face. Such patterns can identify a support or alignment problem that needs attention along with replacing the worn component.
- Material options
- Rubber. Custom formulation and color for the intended contact conditions.
- Hardness selection
- Rubber: 30–90 Shore A. Material choice should reflect the fluid, temperature, and movement involved, with a separate assessment where the washer must perform a sealing duty.
- Custom dimensions
- A rubber seal washer for machine use provides an annular contact area around a matching opening or fastener.
- Fit & assembly
- Center the part before tightening and keep it clear of rotating hardware unless that contact is part of the design.
- Use & inspection
- During service, inspect for extrusion at the inner edge and uneven compression across the face.
Photos illustrate structure or material only. A rubber seal washer for machine use provides an annular contact area around a matching opening or fastener. 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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