furnaces, heat treatment & sand blasting

The following furnaces of our shop are available for series or single orders:

bogie hearth furnace

  • is used for the heat treatment of welded parts up to a width of 3 metres and a depth of 6 metres
  • asymmetric welded constructions should annealed or stress-relieved before machining
  • freshly fired cut sheets can also be stress-relieved
  • we can anneal and subsequently cool down demanding parts; e.g. to remove undesired alloy fractions in castings, or to follow given temperature diagrams
  • the furnace control technology is digital and allows to follow complex temperature profiles
  • a USB hub allows to document, print or send the actual measured values
  • diverse temperature sensors in different positions are calibrated to document temperature differences of 0,2°C


bogie hearth furnace

top-hat furnace
  • is used for the heat treatment of heavy parts up to 40 tons, e.g. mould frames can be interstage annealed or stress-relieved at common temperatures between 500 and 550 °C


top-hat furnace

nitriding furnace
  • is used for nitriding parts with lengths up to 2 metres, e. g. components of casting dies, complete shot sleeves or other wearing parts
  • special coatings can be burned-in up to 1100 °C, e. g. as wear protection of casting ladles
stress-relieve by vibrating
  • is used to stress-relieve extra large parts
  • the process is electrical controlled by measuring the vibration amplitude with a sensor
  • doesn't cause any scale or structural changes
  • is faster and less expensive than heat treatment


stress-relieve by vibrating

walk-in sandblasting system
  • we can sandblast heat treated parts to obtain a clean surface
  • we can sandblast finished welded constructions and complete machines to obtain an even and reactive surface, e. g. before painting
  • we don't sandblast with "sand" but special blasting abrasives
  • the chamber is extra large to sandblast even large parts
  • the chamber is situated as far as possible from our paint shop to avoid any entrapment of blasting abrasives or dust
  • a special compressor unit provides high power compressed air
  • the in-house sandblasting system allows short delivery times for our clients
  • the large sandblasting system is enhanced by several manual blasting equipments for smaller parts


walk-in sandblasting system