Vacuum Hardening Furnace for Steel

Our Vacuum Hardening Furnace for Steel delivers excellent thermal performance up to 1350°C, precision-engineered for distortion-free hardening of high-alloy steels. Featuring accurate temperature control (±1°C) and advanced vacuum-sealed chamber technology, it guarantees oxidation-free, fully martensitic transformations for tool steels, dies, molds, automotive components, and critical aerospace alloys. The robust refractory insulation and intelligent quench-gas automation ensure repeatable hardness depth and microstructure integrity under peak loads. The Furnace are factory-tested, warehouse-available, and prepared for rapid global shipment.

Vacuum Hardening Furnace for Steel Features

• The Chamber size is 500x500x700mm (WxHxD)
• The heating chamber is composed of graphite heater graphite soft felt and hard felt, the max operation temperature is 1350℃.
• The multiserial graphite spray nozzle is located inside the heating chamber along with the induction inwall. The gas uniform was sprayed from the spray nozzle during gas quenching.
  
• The material platform is composed of graphite support, a hearth, and an Al203 sticker. This structure will prevent the adhesion between the platform and the hearth during high temperatures.
  
• The heat field can also use high-temperature molybdenum belt heating, and molybdenum foil heat shield furnace. The heat field has no volatilization, no impurities, and no pollution to the heat treatment workpiece.
• Gas cooling system: which is composed of a high press wheel blower, multistage high-efficient copper heat exchanger, and duct deflector. Filling high purity N2 or Arduring gas cooling, spray to workpiece through duct deflector to achieve workpiece uniform cooling.
• The gas cooling pressure is adjustable from 1-10bar.
• Max cooling rate: from 1150℃ to 250℃ less than 7min. (The cooling water temperature is lower than 35 ℃)

Vacuum Hardening Furnace Technical Parameters

* Other size can be customized.