Claron Hydraulic Seals Ltd


Claron Hydraulic Seals Ltd manufactures a comprehensive range of high quality sealing products within the UK, marketed under the Polyseal® trade name.

The range encompasses the latest modern designs including One-piece Piston Seals, Polyurethane Piston and Rod Seals, Wiper Seals. Bearing Rings and Back-up Rings. In fact most products and designs you are likely to find anywhere, in both modern and the more traditional hydraulic systems.

The product ranges meet European, American, and Asian housing standards and are manufactured in materials including Rubber/Fabric, Polyurethane, various PTFE compounds and many other high performance plastics.

Our commitment to providing quality products is reflected in our rigorous Quality Control Systems which are approved to ISO 9001:2008 giving full traceability of all our products.

Claron also provides a supporting range of customer related services including the supply of Seal Kits packaged to meet the requirements of both production and after market sales.


Polyseal Sealkits

Claron Hydraulic Seals has one of the largest stock selection of Seal Kits in the UK all ready for immediate delivery anywhere in the world. If you think your seal kit is non-standard then send us a sample and we will produce the seal kit you need for your sealing application.

Complete Seal Kits can be made up and packaged to customer specification.

Polyseal Sealkits

Double Acting Rotary Rod Seals

Claron RRS Style Rod Seals are designed for slow rotating and spiralling movements in high pressure / heavy duty applications. Where space allows, the design incorporates grooves in the sealing face to reduce surface contact, increase radial load and retain lubrication.

Standard materials are CF(Carbon Fibre) and CD(Carbon Graphite) with a Nitrile O-Ring energiser but both the sealing element
and the energiser are available in a wide range of high performance materials, including VM (modified Virgin P.T.F.E.)
and B (Bronze filled P.T.F.E.) to suit a variety of applications.  

Double Acting Rotary Rod Seals

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Specialised seals to suit SAE J518 Flangesn CFS style seals.

Specialised seals to suit SAE J518 Flanges have now been introduced by Claron Hydraulic Seals Ltd.

Called style CFS, the seals are manufactured from a high performance grade of Polyurethane which has been developed specifically for arduous sealing applications. The material provides excellent resistance to gap extrusion and compression set over a wide temperature range of -40°C to +110°C at up to 400 Bar.

The SAE J518 standard was introduced by the American Society of Automotive Engineers to cover hydraulic flanged tube, pipe, and hose connections, including four-bolt split flange types used in the design and maintenance of self-propelled vehicles for use on land, sea, air or in space. The SAE J518 flanges, which have been designed to avoid the use of threaded connections, also have a wide range of general hydraulic applications and are being used on earth moving machines, and power steering systems manufactured around the world.

Unlike common O-Rings, Claron CFS style seals are specifically designed to fit the SAE J518 location groove. With their rectangular cross section and point contact sealing lips, they are formed and sized to accurately locate within the machined housing. Their design provides superior performance to both O-Rings and rubber flange seals, while eliminating the 'pumping effect' which is common to close fitting O-Rings.

The seals are available in six standard SAE J518 sizes from 0.500" to 2.000", together with two metric sizes of 33.5x26.3 and 45x36.2

Contact Claron for further information on CFS style seals.

Specialised seals to suit SAE J518 Flangesn CFS style seals.

JCB Sealkits

The Claron Group of companies is one of the leading manufacturers of high quality hydraulic seal kits and pneumatic sealing systems.
You can now purchase online direct replacment Seal Kits for JCB hydraulic cylinders.
All Seal Kits are UK manufactured and stocked to BS ISO 9001:2008 ready for next day delivery.

JCB Sealkits
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