Custom manufacturing example · Customized dustproof flat round rubber gasket

CUSTOM RUBBER & SILICONE MANUFACTURING

Customized dustproof flat round rubber gasket

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

A flat round rubber gasket provides an annular contact between mating parts in a circular joint. For a dust-exclusion application, the important feature is continuous contact around that path. A gasket with the correct overall diameter can still leave a gap if its faces are loaded unevenly or part of the ring is unsupported.

Match the inside opening to the passage that must remain clear and the outside edge to the available seating area. Consider how the joint is fastened: widely spaced fixing points or a flexible cover can produce more compression near screws than between them. The gasket thickness should be chosen with those assembly conditions in mind.

Before closing the joint, remove particles that could hold the faces apart and make sure the ring lies flat without twisting. Assess dust protection on the assembled product under its intended conditions rather than inferring a rating from the gasket alone. After opening for maintenance, inspect the ring for damage and an uneven compression pattern, which may show where the mating components need attention.

Material options: Rubber. Custom formulation and color for the intended contact conditions.
Hardness selection: Rubber: 30–90 Shore A. Consider how the joint is fastened: widely spaced fixing points or a flexible cover can produce more compression near screws than between them.
Custom dimensions: Match the inside opening to the passage that must remain clear and the outside edge to the available seating area.
Fit & assembly: Assess dust protection on the assembled product under its intended conditions rather than inferring a rating from the gasket alone.
Use & inspection: After opening for maintenance, inspect the ring for damage and an uneven compression pattern, which may show where the mating components need attention.

Photos illustrate structure or material only. A flat round rubber gasket provides an annular contact between mating parts in a circular joint. 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.