Product Finder

Hydraulic Seal Kits

At Monomer, we stock hydraulic seal kits for specific sealing on hydraulic breakers used in the construction industry. Hydraulic seals are vital for the healthy operation of a hydraulic cylinder or hydraulic ram. As a trusted distributor of hydraulic seal kits, Monomer proudly supplies hydraulic cylinder seals to various businesses throughout the UK and all over the world. If you need a standard manufactured cylinder seal kit for a break down or as part of the refurbishment of a hammer, we can provide robust replacement seal kits that are suitable for your application.

What are hydraulic seals and what are hydraulic seals used for?

A hydraulic seal is a soft ring that sits in a groove or is fixed in a combination of rings, forming a seal assembly that works to prevent or separate fluid in reciprocating motion applications. Hydraulic seals are crucial in machinery. At Monomer, we have been supplying into the hydraulic aftermarket for over 20 years under the MR Quality Parts brand. We have supplied hydraulic cylinder seals to: construction specialists, refurbishment and repair companies, dealers and distributors within the UK and across the world.

Our hydraulic seal kits are manufactured as alternatives to OEM parts, which include: a wiper seal, u-seals, composite seals, o-rings, back-up rings, a quad ring and special-style seals.

What causes hydraulic seals to fail?

Hydraulic cylinder seals are very robust and long-lasting when used in the correct application settings. However, when used in the wrong setting, hydraulic seals can cause serious problems. The main reasons as to why hydraulic seals can fail include:

  • Improper installation

  • Heat erosion

  • Contamination

  • Chemical erosion

  • Types of hydraulic seals available at Monomer

    Our standard range of sealing kits for mini diggers and hydraulic hammers have been listed below. Our seal kits for hydraulic rams have been assembled in the UK and many of the parts included in our hydraulic cylinder seal kits have even been manufactured in the UK on our own CNC machines. This means that you can be sure that by ordering from Monomer, you will receive a high-quality seal kit.

    How to select hydraulic seals for your application

    When it comes to how to select hydraulic seals, simply use our product finder at the top of the page. There, you will be able to select and find the right hydraulic seal kit for your particular brand or model. This includes hydraulic cylinder seals for:

  • Atlas Copco

  • Furukawa

  • Indeco

  • Montabert

  • NPK

  • Krupp

  • Rammer

  • Toyo

  • Takeuchi

  • If you need a replacement hydraulic seal kit or an individual seal for a brand or model that you cannot find below, we have the experience, expertise and facilities to be able to manufacture a bespoke solution from a sample through our sister company, Martin’s Rubber. Feel free to contact us today, using the enquiry form below, and we will be happy to help you by manufacturing a bespoke replacement seal kit for your application.

    How to order hydraulic seals

    In terms of how to order hydraulic seals, you can find the right hydraulic seal kit right here and can order online today. We will aim to ship your replacement hydraulic seals within a matter of days. Additional information about delivery times and costs can be found in our delivery policy.

    To find out more about our range of standard or bespoke hydraulic seal kits, contact us today on 023 8022 6330 or simply send us your questions by emailing and a member of our technical team can take it from there.

    Hydraulic cylinder seal kit PDF factsheets

    For further information about our range of hydraulic seal kits, take a look at our handy hydraulic cylinder seal kit PDF factsheets:

  • Where to buy hydraulic cylinder seal kits

  • Everything you need to know about Gylon Bio-Pro® seals from Garlock

  • Items 1 to 24 of 94 total

    1. 1
    2. 2
    3. 3
    4. 4

    Items 1 to 24 of 94 total

    1. 1
    2. 2
    3. 3
    4. 4