Custom manufacturing example · High quality rubber thick washers/rubber gaskets for seal

CUSTOM RUBBER & SILICONE MANUFACTURING

High quality rubber thick washers/rubber gaskets for 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

Vulcanization workshop illustration with green molding presses and blue collection bins

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

Rubber thick washers provide a shaped rubber layer around a central opening. Their thickness can be useful where the assembly needs a defined space for compression between mating components. Custom dimensions allow the outside profile and the central hole to suit the fastening or sealing arrangement.

A thick washer changes the assembled stack height as it is compressed. Select it with the available fastening length and the support beneath the washer in mind. The hole should clear the intended shaft or fastener without leaving an unnecessarily narrow ring of rubber around it. The surrounding faces also need enough area to support the washer rather than squeezing it over a sharp edge.

Install the washer flat and check that it has not folded or shifted as the joint is tightened. Avoid using extra tightening to compensate for an incorrect thickness. If the washer serves a sealing role, evaluate the actual joint and medium together. Its shape and compression must work with the adjoining parts to create the intended contact around the opening.

Material options: Rubber. Custom formulation and color for the intended contact conditions.
Hardness selection: Rubber: 30–90 Shore A. A thick washer changes the assembled stack height as it is compressed.
Custom dimensions: Custom dimensions allow the outside profile and the central hole to suit the fastening or sealing arrangement.
Fit & assembly: Install the washer flat and check that it has not folded or shifted as the joint is tightened.
Use & inspection: The hole should clear the intended shaft or fastener without leaving an unnecessarily narrow ring of rubber around it.

Photos illustrate structure or material only. The surrounding faces also need enough area to support the washer rather than squeezing it over a sharp edge. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.

Choosing a material or hardness? Explore the selection guide →

From part requirements to production

Define the part

Identify key dimensions, mating surfaces and quantity

Review material & tooling

Agree the compound and manufacturing approach

Evaluate the sample

Review the fit and agreed requirements in the assembly

Produce & inspect

Manufacture and check against the approved requirements

Review the intended assembly

Working conditions

Identify temperature, contact fluids and repeated movement.

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.