Pit type low temperature furnace


  • Pit type air circulation furnaces are installed with the opening at ground level or just above it.
  • These are low temperature furnaces with operating temperatures up to 650°C.
  • These furnaces are usually used for heat treatment of non-ferrous alloys, tempering of ferrous alloys after hardening, stress relieving after welding and forming, also for ageing.
  • Since convection is the mode of heat transfer at these temperatures, air circulation is provided inside the retort to maintain stable temperature uniformity.
  • These furnaces are also suitable for controlled atmosphere based processes.
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Temperature Range :

Upto 600°C

Standard Applications :

Stress Relieving, Tempering

Insulation :

Ceramic Fibre Blanket & Module / Refractory Brick Lining

Heating Elements :

Nichrome Wire / Special Alloy Resistance Heating Wire Furnace Classification : Class 2 / Class 3

Instrumentation options :

Thyristor, Programmable Temperature Controller, Temperature Recorder, PLC, SCADA, HMI