Thermische hardingsprocessen

We are certified for the heat treatment of hoisting and lifting devices


We can offer various hardening and  annealing treatments which can also be carried out under a protective gas layer (argon/hydrogen) or protective foil.



  • Oil hardening: maximum dimensions 3000x850x500mm
  • Carbonizing/powder: maximum dimensions 3000x850x500mm
  • Salt-bath hardening: maximum dimensions ø 500x1500mm
  • Protective foil (Senpack) hardening: maximum dimensions up to 600 mm wide
  • Flame hardening: maximum dimensions up to 2000 mm in length
  • Vacuum hardening: on request
  • Induction hardening: on request



  • Stress Relieving
  • Normalizing
  • Solution annealing
  • Brass, copper, aluminium, cast iron, stainless steel and steel
  • Maximum dimensions: 3200x2000x900mm

If requested, all hardening and annealing treatments can be accompanied by a certificate, including a temperature-time curve.