Delivering Fluid Sealing Solutions Since 1972

Hydraulic and Pneumatic Seals

Hydraulic and Pneumatic Seals: Solutions for all machines in every industry

M Barnwell Services Hydraulic and Pneumatic seals are known for their longevity and durability and are used by many well-known OEMs in food, construction, pharmaceutical, plant, pneumatic and hydraulic applications.

With over 8,000 Hydraulic and Pneumatic Seals in stock, we supply and manufacture to over 5000 customers globally every month – quickly and reliably.

If you would like more information about our range, download our catalogue, visit the Seal Maker Page or contact a member of the team.


Over 8000 sizes available from Metric 3mm to 1800mm and Imperial 1/8" to 71".

Special sizes available from our SealMaker manufacturing service.


Comprehensive range of Rod, Piston and Wiper Seals for both single and double acting cylinders including:
Pressure Seals, Buffer Seals, Vee Packs, U Rings, Guide Rings, Wear Rings, Twin Sets, Cup Seals, Dri Rod Seals, Fluid Seals, Chevron Seals, Internal and External Distributor Seals, Hat Seals, Wyclips, Energised Seals, Solosele Seals and many more


Rubberised Fabric, PTFE (Including Virgin, Carbon, Bronze, Glass filled), Polyurethane (AU), Nitrile (NBR), Hydrogenated Nitrile (HNBR), Viton® (FKM/FPM), Fluorosilicone (FVMQ), Ethylene propylene (EPDM), Silicone (VMQ), Nylon®, Nylatron®, Acetal, Peek, Leather & many more


To suit DIN/ISO, ISO 5597, ISO 5597/1, ISO 7425/1, ISO 7425/2, ISO 7425/1 TEIL 1, ISO 6457/1


FST Freudenberg, Simrit, CFW, Gaco, Merkel, Hallite, Parker PDF, Busak & Shamban (Trelleborg), Dowty, Miros, James Walker, Beldam Crossley, Evco, Accoflour, Polypac, Saint Gobain, Green Tweed, Polyseal, Kastas, Skega, Edbro, Technotex, Artic, Macma, MFP, ALP and many more.

Associated Products

Cast Iron Piston Rings, Bushes, O Rings, Back-up Rings, Fitting / Installation Tools, Lubricants, Gloves, Plastic Seal Retaining Rings (Keeper Rings).

Cylinder Resealing service available on request