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SHS 41 Protective Gas Hardening System


Protective gas hardening system with furnace N 41/H

This compact, semi-automatic system is suitable for hardening in a protective gas atmosphere followed by quenching of the workpiece in oil. In this way, even larger parts can be annealed under a protective gas and quenched. It consists of a Multitherm N 41/H hardening furnace with a pneumatic door opening and charging plates as well as an oil quench bath on rollers with an integrated pneumatic lowering unit, a floor grid with gas bell, a holding unit for the gas bell as well as a rim exhaust with flame trap. The workpiece is placed on the floor grid and covered with the gas bell. After preflushing with protective gas, the gas bell is pushed with the floor grid into the hardening furnace. After heat treatment is completed, the workload is pulled out of the furnace onto the lowering unit. The bell is fastened into place by the holding unit and the charging floor grid is lowered pneumatically. In order to obtain best quenching results, the pneumatic lowering unit is moved up and down in the oil quench bath. After completion, the workload is moved into unloading position. This low cost system can be used for hardening processes which otherwise could only be handled in complex furnace systems. Our professional R&D department will be pleased to carry out suitable testing of your product samples to determine the heat treatment equipment you require.

  • Multitherm N 41/H chamber furnace
  • Pneumatic pedal switch operated door opening
  • Charging plate
  • Oil quench bath on rollers
  • Pneumatic lowering unit
  • Heating of oil quench bath
  • Oil temperature display
  • Charging floor grid and gas bell
  • Holding unit for gas bell
  • Manual protective gas unit
  • Draw hook
  • Safety equipment consisting of rim exhaust with flame trap

Additional Equipment

  • Suction hood
  • Water bath
Article no.FurnaceTmaxInner dimensions in mmVolumeExterior dimensions in mmSupplyElectricalWeight
 Model°Cwdhin lWDHpower/kWconnection*in kg
001321282 N 41/H¹ 1280 350 500 250 40 840 1160 1320 15,0 3-phase 260
¹Furnace description, see page 5 *Please see page 32 for more information about mains voltage
Article no.Protective gas bell size in mmOil quench bath sizemax. loadmax. quenchPreflushProcessSupplyElectrical
 hardening systemWDHin litersWeightyield/hrateflush ratepower/kWconnection*
631006096 SHS 41 260 380 180 300 25 kg 20 kg 20 - 25 10 - 15 15.0 3-phase
*Please see page 32 for more information about mains voltage

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