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Tubes and smooth partss

The press fit technique is largely used to assemble pipes, tubes and other piping in the fluid circuit.




One finds numerous applications in the car industry

  • Cooling system
  • Heating system
  • Air conditioning circuit
  • Petrol and diesel circuit
  • air cooling circuit
  • motor oil or gear box circuit
  • hydraulic breaking, assistance or suspension circuit

Soprima has developed a particular know-how in the pre-coating of press fit parts.

Our technique of pre – coating on tubes, axes and other smooth parts, brings an enormous technical and important gain and substantial economies in various domains :

  • Sealing of the pump nozzle
  • Press fit connection
  • Sealing and fixation of the nipples on the press fit plumbing
  • Sealing at high pressure on connecting pipes
  • Sealing on protection tubes in the car industry
  • Reinforcement of fixations and sealing of foundry shutters
  • Bonding of knurled or smooth axes, ...


We can process all types of parts in a lot of materials : steel, inox or brass as well as welded and non welded tubes.

Our pre- coating process allows us to respect the compatible level of cleanliness required at the highest level within the fluid circuits.