Gaskets & Seals

De Beer has its origins in the sanitary sealing industry, with nearly 70 years of experience in sealing technology. In the meantime, within the group we produce seals for a very wide variety of industries in a variety of ways: flat gaskets are die-cut from sheet material. Shaped gaskets are made of thermoplastic elastomers manufactured by means of injection moulding.

De Beer can produce the flat seals as shown on the drawing from one piece on its CNC cutting machines. But runs of several million pieces are produced efficiently.

Seals may also be attached to hard plastic parts by means of 2-component injection moulding. This saves an assembly step, or seals are made possible in places where no separate seal is possible.


  • Drinking water / plumbing fixtures
  • Piping systems
  • Automotive
  • Casings
  • Machine building
  • Coffee machines

Sealing technology expertise. Sealing products for various industries - De Beer Group

Production Capacities

  • CNC punching
  • CNC cutting
  • From 1 to 1 million pieces
  • > 100 materials in stock
  • Injection moulding of shaped gaskets

Why De Beer?

  • CNC cutting machines for flexible production according to the drawing, from one piece
  • Punching machines for small, medium and large series
  • Specialist in shaped gaskets made of thermoplastic elastomers (TPE, TPU, soft PVC)
  • Processing of sheet material: silicone, elastomers, fibreboards, plastic materials
  • Injection moulding of gaskets with a 2-component technique
  • Development of sealing systems and materials development

Sealing technology expertise. Rings from De Beer Group for various applications. Various sealing products from De Beer Group.

A selection of our products

Seals are often small, but crucial components of a product or system. Sealing extremely diverse applications is a challenge every time that requires understanding the science behind the sealing technique. De Beer applies sealing theory and material knowledge in developing solutions for customers.

Contact your specialist

Volker Balke
Sales Manager Dichtingstechniek (vlakke delen) König & Ronneberger
Call: +49(0)202-27842-12

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