As asupplier of seals, we offer you an extensive range of seals suitable for various applications.

We provide hydraulic seals, ideal for high-pressure applications that require robustness and durability. In addition, we offer a range of pneumatic seals. These are specially designed for air pressure applications and ensure the efficient operation of your pneumatic systems. Mattparts also offers aftermarket seals, seal kits, and replacement parts for the most renowned brands of earthmoving equipment on the market.

When selecting and ordering the right seals for your machines, it is important to consider the specific requirements of your equipment and the environmental conditions. That is why we are pleased to provide an overview of all the seals we offer below.

Custom Seals – Produced Quickly and Flexibly

Using our state-of-the-art CNC sealing machine, we produce custom seals in any desired size and design. This allows us to respond quickly to urgent requests, with no minimum order quantities.

O-RINGS

O-rings are the most economical and versatile sealing elements. Thanks to their simple design, they are used in many industrial applications, both static and dynamic. They provide a good seal and are particularly suitable for applications where space is limited. We offer various grades for different applications, both hydraulic and pneumatic. You can order O-rings from us in materials such as rubber, Viton, silicone, EPDM, PU, etc.

Back-up rings

These are stiff, thin rings that hold an elastomeric seal or plastic (such as polyethylene) joint in its designed shape and in the correct position. They provide additional resistance support and prevent extrusion of the seal into the housing when it is under pressure. They do not have a sealing function themselves, but support the actual sealing elements. These are available in solid ring, spiral ring or split ring designs, in PTFE with or without filler, NBR or PU, POM, PA, PE, etc

Rotating seals

We are distributors of rotary seals: shaft seals, oil seals, high-pressure seals: for your hydraulic pumps, motors, rotary feeders, couplings, crankshafts and wheel hub applications, etc.

Front seal / V-ring

A V-ring is used to prevent water and/or dirt from entering. The front seal is an elastomer axial seal for rotating shafts and bearings. It rotates with the shaft and seals axially against a stationary counter surface perpendicular to the shaft. This type of seal is widely used for various applications and has proven to be reliable and effective against dust, dirt, water, oil splashes and other media.

Static seals

Static seals are used as auxiliary elements for O-rings. Their main purpose is to prevent the sealing ring from ending up in the space between the two metal parts. Our range includes static seals such as O-rings, D-rings, R-rings, quad rings, square rings, PFS rings and FCS rings. Take a look at our profile list for a complete overview.

Bonded Seal

A bonded seal (also known as a Dowty seal, bonded washer or multiseal) is a static sealing ring.

The metal ring makes it resistant to high pressures and it is used in mechanical, pneumatic and hydraulic applications. They are used to seal flange connections, screw couplings, nuts and bolt heads.

The bonded seal consists of a steel outer ring with a permanently vulcanised trapezoidal sealing ring on the inner diameter.

Self-centring bonded seals are also available! The self-centring version has an additional centring rim that centres the seal and holds it in place to prevent leakage. This bonded seal is very easy to install.

METAL RING: made from galvanised steel, aluminium or stainless steel.

RUBBER PART: available in NBR as standard.

For use with chemicals or high temperatures, Viton, silicone or possibly EPDM are good alternatives. The bonded seal is available in inch, BSP, metric, etc.

Bonded Seal assortment boxes

Metric-Inch

Seal assortments for your machines from brands such as Caterpillar, Komatsu, Hitachi, etc.

Self-centring bonded seals in a handy box!

Hydraulic piston seals

Hydraulic piston seals are located between the piston and the cylinder wall. On the outside, the seal moves linearly and seals against the stationary cylinder wall. A hydraulic piston seal is the seal that is mounted in the piston and must prevent fluid leakage from your cylinder. It must be able to withstand extreme temperatures, high pressure and shear forces inside the cylinder.

Pneumatic piston seals 

A pneumatic piston seal is the seal fitted in the piston to prevent gas leakage. These seals are used to prevent the leakage of gases or air. Depending on the application, gaskets are made from materials such as plastic, rubber, cork, graphite or copper, paper, gasket sheet, cotton or metal.  

Hunger seals 

The elastic elements of the seals are made of wear-resistant polyurethane or special elastomer compounds (NBR, FPM, EPDM, etc.).

Where advantageous and technically feasible, PTFE or PTFE compounds are used in seals or to manufacture complete seals. The use of PTFE can, among other things, increase the service life and efficiency of the equipment. 

Cushioning rings

Cushioning rings are used in many hydraulic cylinders where end damping is required. They consist of two vulcanised rings. Cushioning rings reduce noise and vibrations.

ROD seals

Rod seals are usually placed in the head of a cylinder, where the rod leaves the cylinder. They are used in hydraulic cylinders as fluid seals and in pneumatic cylinders as air seals.

Scrapers, dustrings, or wipers 

These are mounted in a hydraulic/pneumatic cylinder and ensure that the rod is cleaned of dust, moisture or any form of contamination during the return stroke. They are mainly used in linear dynamic applications. Characteristic features are the elastic scraper lip closure and the optional metal casing.

Guides, guide rings, guide strip:

Guide rings and tape provide resistance to deformation under radial load and drive the piston and rod in the hydraulic/pneumatic device, reducing friction between the moving parts. Without the guide rings, metal contact with the cylinder head would damage the system. Guide rings are used to replace the traditional bronze bushing in hydraulic/pneumatic cylinders in cases of insufficient lubrication. We have guide rings and guide strips available from stock in various materials for different applications.

FDA FOOD INDUSTRY - APPROVED SEALS

Assortment boxes: O-ring box/bonded seals/metric-inch/static

O-ring box Caterpillar; O-ring box metric; inch; PFS box;Copper ring box; Dring kit; fcs box. Bonded Seal metric; inch; HITACHI control valve kit

Profile List

You can find the various available profiles in our profile list. You'll also find a complete overview of our rotary seals, oil seals, and high-pressure seals—such as a, as, asp, c, cs, bs, bss, and others—here.

Custom Solutions

Do you need specific or non-standard seals? We offer tailored solutions in a wide range of materials, with diameters ranging from 10 mm to 3000 mm.

Our machine operates with extreme precision: we input the desired shape, dimensions, and thickness of the seal, and then cut the material with lightning speed and exact precision. Complex shapes are no problem, and every seal perfectly matches the specified requirements. This allows us to deliver consistent quality, time and time again.

Custom, client-specific designs are possible based on a model or bill of materials. We also offer FDA-approved seals specifically for the food industry!

Discover our high-quality sealing solutions

Don't wait any longer—visit our online store today to explore our extensive selection of seals. Ordering seals has never been easier. Whether you need custom solutions or complete kits, we've got you covered.

In addition to seals, we also offer a wide range of other cylinder parts. Ordering cylinder seals from us means choosing quality and durability. Visit our online store today to place your order, or contact us for more information.

Installation & Removal

We also offer the necessary measuring tools and equipment for installing and removing seals.

Mattparts

Seals and components for your hydraulic and pneumatic machinery.

Contact

Sales department

Opening hours:

Monday - Thursday: 8.30am-12pm / 1pm-5pm

Friday: 8.30am-12pm / 1pm-4pm

Terms and Conditions/Privacy Policy