amtec Spannhydraulik

Pretensioning Tool

  • amtec step nuts with hydraulic retraction (double-acting)
  • The structure and principle of operation are similar to the "standard" step nut.
  • However, besides the automation of the clamping procedure, it is also possible to automate tension release by a second (smaller) hydraulic chamber.
  • Dimensions are produced according to the customer's wishes.
  • Area of application: Tension rods and presses


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