Sealing technology

Custom-made rubber seals for industry. EPDM, NBR, SBR, CR and Viton in tested quality. Request your custom seal now.

Your partner for all types of seals

FLAT AND SPECIAL SEALS FROM THE EXPERT

Your partner for seals

For industry, municipalities, construction companies or energy suppliers – rubber goods and rubber seals are needed in all industries. We are your contact for all types of seals, whether rubber roll, rubber strips, rubber seals, as well as all sealing materials are part of our delivery programme.

Custom-made seals for industrial applications

At Martan Gummi you receive rubber seals and flat gaskets made to measure for technical sealing in plants, machines and assemblies.

Production is based on drawing, sample or dimensions. This creates a precisely fitting contour for your sealing surface, matched to pressure, medium and temperature.

Typical designs

Flat gaskets made to measure (contour cut)
Sealing strips and sealing cut pieces
Special seals to drawing

Which details speed up quotation preparation

Drawing (DXF/PDF) or sample
Outer dimension, inner cut-out, material thickness, quantity
Medium (e.g. oil, water, chemicals), temperature range, pressure
Installation situation (sealing surface, bolting, flange pattern)

For flat cut pieces from sheet material, depending on batch size and contour, a rubber cut to size as a finished part is also suitable.

Flat gaskets made to measure: what you should know

Flat gaskets made to measure are essential for numerous industrial applications. They are adapted exactly to the required dimensions and operating conditions and ensure reliable sealing between two components.

Advantages of custom-made rubber flat gaskets

Custom-made flat gaskets fit exactly into the intended sealing space. This achieves uniform surface pressure, which reduces the escape of liquids or gases.

A key advantage lies in the targeted material selection. The seal can be adapted to chemical influences, temperature ranges and mechanical loads.

Material selection according to operating conditions

Common materials for flat gaskets are elastomers such as NBR, EPDM and FKM. These materials differ in resistance, elasticity and temperature behaviour.

The right material selection directly influences the service life and functional reliability of the seal and should always be made on the basis of the medium, the temperature and the load.

Individual geometries and contours

Flat gaskets made to measure can be adapted to simple as well as complex geometries. Contours, recesses and hole patterns can be implemented precisely.

The exact adaptation increases reliability in operation and reduces maintenance and replacement effort.

Manufacturing processes for flat gaskets

Depending on contour, material and quantity, different manufacturing processes are used:

Die cutting: economical for simple shapes and larger series
Waterjet cutting: precise for complex contours and sensitive materials
Laser cutting: flexible for small quantities and fine geometries

Further details on processing methods can be found in rubber processing.

Application areas of seals

Hydraulic seals

Hydraulic seals are designed for use in systems with high pressures and liquid media. They are used among other things in cylinders, valves and pumps and must withstand permanently high mechanical loads.

Typical areas of use are hydraulic power units, presses, construction machinery and industrial drive systems. A precise selection of material and geometry is decisive for the sealing function and operational safety.

Further details on designs and areas of use can be found under hydraulic seals.

Pneumatic seals

Pneumatic seals are used in systems that work with compressed air or gases. In addition to sealing moving components, reducing friction plays a central role here.

They are frequently used in cylinders, valves and control units and are designed for high switching cycles as well as uniform movement sequences.

An overview of suitable solutions can be found under pneumatic seals.

Industrial areas of use

Seals are used across industries. In the automotive industry they seal engines, transmissions and brake systems. In the chemical industry they secure the transport of aggressive media in pipelines, pumps and reactors.

In the food and beverage industry, additional hygienic requirements apply, for example with regard to material purity and cleaning resistance.

Materials and manufacturing processes

The selection of material and manufacturing process depends on temperature range, chemical load and mechanical stress. Frequently used elastomers are NBR, EPDM and FKM.

Manufacturing processes such as injection moulding and vulcanisation enable reproducible quality and consistent material properties for the respective purpose.

Quality requirements, testing and storage

Before use, seals are tested for pressure resistance, temperature behaviour and media resistance. Test procedures simulate real operating conditions.

Suitable storage conditions are required for consistent function. These include controlled temperatures, low UV exposure and clean storage environments.

Selection criteria for custom-made seals

The selection of a custom-made seal is made on the basis of clearly defined technical requirements. The decisive factors are medium, temperature, pressure and the specific installation situation.

Medium and chemical resistance

The medium to be sealed largely determines the material selection. Oils, fuels, water, gases or chemicals affect elastomers in different ways.

Chemical resistance must be ensured permanently in order to avoid swelling, embrittlement or material degradation.

Temperature range

Seals must remain dimensionally stable and elastic both at continuous and at peak temperatures. The permissible temperature range varies considerably depending on the material.

Incorrect design leads to premature wear or loss of function.

Pressure and mechanical load

The system pressure present influences the necessary material hardness and geometry of the seal. At higher pressures, stable cross-sections and uniform surface pressure are required.

In addition, mechanical loads from movement, vibration or assembly forces act on the seal.

Installation situation and geometry

The installation situation determines the shape, dimensions and tolerances of the seal. Flange pattern, groove geometry and bolting must be taken into account.

For complex contours, production to drawing or sample is advisable.

Supplementary information on precisely fitting production can be found under custom-made rubber seals.

Frequently asked questions about flat gaskets made to measure

Which details are needed for a flat gasket made to measure?

For precise production, a technical drawing or a sample is suitable. Details on outer and inner contours, material thickness, quantity as well as medium, temperature range and installation situation are also helpful.

Which materials are suitable for flat gaskets made to measure?

Common materials are NBR, EPDM and FKM. The selection depends on chemical load, temperature range and mechanical stress in use.

Which manufacturing processes are used for flat gaskets?

Depending on contour and quantity, production is carried out by die cutting, waterjet cutting or laser cutting. The process is chosen to suit the geometry and the material.

For which applications are flat gaskets made to measure suitable?

Flat gaskets made to measure are used in hydraulics, pneumatics, mechanical engineering, chemical engineering as well as in the food and beverage industry.

How does custom manufacturing affect service life?

A precisely fitting geometry ensures uniform surface pressure. This supports stable operation and extends the service life of the seal.

Are there minimum or series quantities?

Flat gaskets made to measure are suitable for single pieces, small series and series production. The economical design depends on contour and manufacturing process.

Further technical details and enquiry options can be found under custom-made rubber seals.

IMPRESSIONS FROM SEALING TECHNOLOGY

O-rings

Advantages you can expect from Martan Gummi

Large selection of rubber sheets, sealing material and O-rings

Individual solutions on site

Rubber processing and sealing technology

Designing, drafting and drawing your parts

Highest level of precision

XXL machine park, plotting, die cutting, CO2 laser cutting, bending, bonding

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Industries we supply

Mechanical & plant engineering

Conveyor technology

Food industry

Automotive industry

Packaging industry

Medical / laboratory technology

Vehicle technology

Water technology

Aerospace industry

Rail technology

Shopfitting

Aviation industry