Pit – Type furnaces
These pit-type furnaces with or without air circulation are particularly useful for a professional heat treatment demanding optimum temperature uniformity.
Production processes such as tempering, solution annealing, artificial ageing, and soft annealing canbe realized with these pit-type furnaces.
Models PPJ1
- Max. operating temperature 450ºC
- Furnace chamber lined with steel or alloy sheet 1.4301 (304)
- Air circulation fans in the furnace lid, high circulation rate
- Freely radiating heating elements placed on supporting tubes
- Manual, pneumatic or hydraulic lid lifting door
- Optimum temperature uniformity in the useful chamber
- Low energy consumption due to multi-layer insulation
- over temperature safety
Models PPJ2
- Max. operating temperature 600ºC
- Furnace chamber lined with steel or alloy sheet 1.4301 (304)
- Air circulation fans in the furnace lid, high circulation rate
- Freely radiating heating elements placed on supporting tubes
- Manual, pneumatic or hydraulic lid lifting door
- Optimum temperature uniformity in the useful chamber
- Low energy consumption due to multi-layer insulation
- over temperature safety
Models PPJ3 with integral Protective Gas Retort
- Max. operating temperature 1150ºC
- Furnace chamber with light weight insulation bricks and heating elements embedded in grooves for protection
- Heating elements on all wall surfaces
- Possibility for manual or automatic gas supply systems
- Manual, pneumatic or hydraulic lid lifting door
- Upon request Gas tight alloy retort with protective gas inlet and outlet made of heat-resistant alloy 1.4841 (314)
- Gas tight retort furnaces particularly suitable for annealing processes requiring a constant defined atmosphere in the furnace chamber
- Water-cooled door seal with ‚O‘-ring gasket
- Manual or automatic gas supply panel for: Carburizing, Nitro carburizing, Nitriding
- Process and charge documentation via Controltherm software or PLC-based control system