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Factory-direct custom manufacturing

Custom Rubber Grommets

Custom rubber grommets manufactured to your drawings or samples. Work directly with our factory on material specifications, mold development, sampling and production.

Discuss Your Custom Project

Fast mold development. Samples in as little as 48 hours, subject to the approved design, material and tooling requirements. Project timing is confirmed in your quotation.

Selection of molded rubber grommets with round, oval, closed and extended profiles
Round, oval & special profilesCustom molded rubber parts
Factory DirectDiscuss your project directly with the manufacturer.
20+ YearsExperience in rubber manufacturing.
Fast Mold DevelopmentTooling and sampling based on your approved part specifications.
Samples in as Little as 48 HoursSubject to the approved design, material and tooling requirements.
Illustrative view of green hydraulic rubber vulcanization presses in a bright manufacturing workshop
Rubber vulcanization presses · illustrative view

Molding & vulcanization

Rubber grommets,
molded to your specifications.

Custom rubber grommets manufactured from your drawings or existing samples. We confirm the material, dimensions and fit requirements before tooling, sampling and production.

Request a grommet quote

Made to your specifications

Custom Manufacturing from Drawings or Samples

Our focus is manufacturing to your part specifications, with a review of tooling, materials and production feasibility before quotation.

DRAWING-BASED

Manufactured to Your Drawing

We assess your technical drawing or CAD file for molding feasibility, then quote tooling and production to the specified dimensions, tolerances and material requirements.

Send a Drawing
SAMPLE-BASED

Manufactured to Your Sample

We evaluate an existing part as the basis for manufacturing. Critical dimensions, material and acceptance criteria are confirmed with you before tooling and sample production.

Discuss an Existing Part

Prepare your inquiry

What to include for a quotation

Include the material and hardness if known, sample and production quantities, delivery destination and target dates. Describe the operating conditions and any critical fit or performance requirements.

When you have a drawing

Attach the drawing or CAD file with its revision, units, dimensions and tolerances. Mark the dimensions that control fit and identify the mating panel, cable or component.

When you have an existing sample

Include clear photos, measurements and details of wear or fit problems. Confirm sample shipping arrangements with us before sending a physical part.

Send your inquiry

Shape & function

Custom grommet profiles

These profiles illustrate common grommet shapes. Custom features are assessed for manufacturability against your drawing or existing sample before quotation.

Type A

Round, open-center profile

Type B

Alternative round profile

Type D

Round profile variation

Type E

Extended double-flange profile

Blind round

Closed-center round shape

Blind oval

Closed-center oval shape

Oval

Elongated opening

Waterproof style

Sealing profile to validate

Long neck

Extended cable protection

Stepped

Stepped snap-ring profile

Need a different structure?

Discuss split designs, multiple openings, stepped bodies, flanges, membranes or other molded features. Feasibility is reviewed with your drawing and installation requirements.

Describe your profile

Designed for the real environment

Tell us what the part has to do.

Cable protection, panel retention and sealing all begin with the assembly. Share the working conditions as well as the shape.

Preparing a technical drawing for a molded part
01

Assembly & installation

Panel material, edge condition, available space, installation method and cable movement.

02

Temperature & exposure

Continuous and peak temperatures, outdoor weather, sunlight, ozone and service duration.

03

Fluids & chemicals

Fluid identity, concentration and contact conditions—including oils, cleaners and water.

04

Performance & acceptance

Specify any required sealing, vibration isolation or flame performance. Both parties confirm the product specifications, test methods and acceptance criteria before production.

Material selection

Material options

Start with your operating conditions. We review the compound, hardness and performance requirements for your application; the product specifications and acceptance criteria are confirmed by both parties.

NR

NR (Natural Rubber)

A starting point for flexible mechanical protection and repeated movement. Review oil exposure, ozone and outdoor conditions.

NBR

NBR (Nitrile)

Often considered for petroleum-oil exposure. Check the actual fluid, temperature and any outdoor ozone exposure.

EPDM

EPDM Rubber

A strong starting point for outdoor, water and ozone exposure. Not suitable for mineral oils or petroleum fuels.

CR

CR (Neoprene)

Useful for weather-exposed parts and selected oils. Compatibility varies with the fluid and formulation.

VMQ

VMQ (Silicone)

Consider for temperature flexibility, electrical insulation or color requirements. Check tear, abrasion and chemical exposure.

FKM

FKM (Fluorocarbon)

Consider for selected oil, fuel and higher-temperature applications. Cold flexibility and the exact chemical still matter.

Explore materials & chemical compatibility

Define the fit

Start with three assembly dimensions.

Measure the panel opening, the panel thickness and the cable or bundle passing through it. Include units and any allowable variation.

  1. Panel holeDiameter—or width and length for a non-round opening.
  2. Panel thicknessThe material thickness where the grommet will seat.
  3. Cable diameterThe actual cable or bundle size, including its tolerance.

Illustration of a round through-hole assembly only. These dimensions are not shared by every profile. Blind, oval, split and other custom parts need their own drawing and fit review.

Illustrative section view showing panel hole diameter A, panel thickness B, and cable diameter C on a round grommet assembly
Illustrative assembly section · not to scaleSwipe to view the full diagram →

Inquiry, approval & supply

Our custom grommet manufacturing process

Our factory reviews manufacturing feasibility and manages mold development and sampling. Production follows the product specifications and acceptance criteria confirmed by both parties.

  1. 01

    Requirements Review

    We review your drawing or existing sample together with the material requirements, working conditions, quantity and target schedule.

  2. 02

    Technical Review & Quotation

    We assess material, geometry and tooling needs, then quote tooling and production costs with sample timing and order terms.

  3. 03

    Drawing & Specification Approval

    We agree the drawing, compound, hardness, color and acceptance criteria with you before mold development begins.

  4. 04

    Tooling & Sample Production

    Our factory develops the mold and produces samples to the agreed specification. Timing is confirmed for the design, material and tooling required.

  5. 05

    Sample Validation

    Samples are provided for fit and application testing. We review feedback and confirm any revisions with you before production approval.

  6. 06

    Production & Quality Checks

    We manufacture to the product specifications and acceptance criteria confirmed by both parties.

  7. 07

    Delivery & Repeat Supply

    Finished parts are packed and shipped to the agreed terms. Repeat orders are confirmed against the approved part specification and drawing revision.

Checking a rubber grommet with a digital caliper

Fast mold development
& sample testing

Samples may be available in as little as 48 hours, subject to the approved design, material and tooling requirements. Your project schedule sets the sample start point, production timing and transport allowance.

Quotation & ordering

How to Place an Order

Start with an inquiry through the form or by email. An inquiry requests a review and quotation; it does not place a paid order.

  • Tooling and sample costs, production unit price and quantities
  • Approved drawing, compound, hardness, color and acceptance criteria
  • Sample and production schedules, payment, packaging and shipping terms

Approve the final drawing and order details in writing, then follow the agreed payment and production arrangements.

[email protected]

Free samples may be available for eligible projects. Contact us to confirm eligibility and sample arrangements. Custom tooling is quoted separately.

Before you begin

Custom grommet questions.

Have a detail that needs a closer look?

Talk to our team
What is needed for a custom quotation?

Provide a technical drawing or details of an existing sample, along with material requirements, quantity and target dates. We review manufacturing feasibility and tooling needs. Part dimensions and acceptance requirements are confirmed with you before tooling begins.

Can you work from a sample or an existing part?

Yes, subject to a manufacturing review. Photos and measurements support the initial assessment; a physical sample may also be required. Wear or distortion can affect dimensions, so critical specifications must be confirmed with you before tooling. Contact us to arrange sample delivery.

What is the minimum order quantity and price?

Both depend on the design, material, tooling and quantity. Send your trial requirement and expected production volume for a quotation showing the minimum quantity, unit price and any separate charges.

Are samples and custom tooling free?

Free samples may be available for eligible projects. Contact us to confirm eligibility and sample arrangements. Custom tooling is quoted separately.

Who owns the mold, and can it be reused for repeat orders?

Confirm tooling ownership, storage, maintenance, future use and any transfer arrangements in writing before authorizing the mold. These terms form part of the project quotation and order agreement.

How quickly can I receive samples?

Sample production may be possible in as little as 48 hours, subject to the approved design, material and tooling requirements. Your quotation gives the project-specific start point and schedule, with transport time separate from sample production.

How do I choose the material and hardness?

Tell us the fluids, temperatures, outdoor exposure and fit you need. If you do not know the material or hardness, describe how flexible or firm the part should feel and how it will be installed. Review the proposed compound and test samples in the actual assembly.

How are application-specific requirements confirmed?

Specify the intended use and applicable performance requirements before quotation. The selected compound, part and test conditions must be agreed for the application; suitability cannot be inferred from the material name alone.

What should I check when the samples arrive?

Check the panel opening and groove fit, cable clearance, installation, retention and the performance your application requires. Record any changes against the drawing revision before approving production.

How do I order, pay and arrange shipping?

Send an inquiry through the form or email. After technical review, approve the quotation and specification. Payment method, terms and shipping arrangements are agreed for your order and delivery destination.

How do I reorder or change an existing part?

Provide the previous order or part number, drawing revision, quantity and requested date. Identify any changes to the material, dimensions, color or application so they can be reviewed before the next production run.

Send an Inquiry

Use the form below or email your drawings and requirements directly to [email protected].

One file, up to 20 MB. For multiple files, use ZIP or RAR.

Find Your Grommet Size

Choose a profile and enter your dimensions to compare catalog sizes.

Size Finder

Size Finder requires JavaScript. Browse all product types and sizes, or email [email protected] for help with your requirements.