• Martenstic Hardening


• Austempering(Bainitic Hardening)

• Narrow tunnel entry vestibule for component preheating and reduction in gas consumption.


• A thick alloy muffle that isolates atmosphere gas from the heaters and refractory and ensure integrity of process atmosphere.


• Rugged hearth plate designed to handle a wide variety of components.


• Autoloading and soft product handling systems designed to prevent component damage


• Prewash and post quench wash with compact 3 stage (immersion, spray and dry) or single zone conveyor system with quench salt recovery.


• Reuse of spent reactive atmosphere to preheat components & heating the wash medium.


• Atmosphere circulation fans in high capacity furnaces.


• Quenchant antisplash cascade in chute and jet agitation at strategic locations.


• Conveyorised quench tank. Special tanks with track heaters for salt quenching.

• Case Carburising


• Carbonitriding


• Neutral Hardening


• Carbon Restoration


• Nitrocarburising


• Normalising


• Annealing

The circular cross section of the furnace has a larger internal heat emitting surface area which allows quicker load recovery and a lower shell surface area that reduces wall losses.

The circular design also eliminates eddies which would be caused by sharp corners and allows effective and uniform atmosphere circulation around and beneath the work basket ensuring uniform temperature and stable atmosphere conditions.

Carefully considered circuitry part specification, manufacturing method and acceptance criteria ensures long trouble free performance.

low thermal mass fibre insulation for rapid and uniform temperature recovery and atmosphere conditioning.

high alloy, rugged long life design, bung mounted.

radiant tubes with bayonet electrical elements, gas or oil firing.

self adjusting positive sealing door with a supervised pilot and flame curtain.

reduced cycle times, higher productivity and lower operating costs.

CO/CH₄/CO₂ analyser, Oxygen probe.

bi-directional, variable flow through propeller pumps within draft tubes and CFD designed baffle system ensure consistent hardness and reduced distortion.

versatile, expandable PLC system with a touch screen MMI and SCADA programming that supervises the cycle, temperature, atmosphere flow/ potential, mechanical movements and interlocks. Data acquisition of process parameters, alarm conditions & printout.

upper deck with atmosphere circulation for cooling the work basket in protective atmosphere. The system design allows cooling prior to reheating the same work basket.

• Low thermal mass fibre insulation for rapid and uniform temperature recovery and atmosphere conditioning


• High alloy, rugged long life design, bung mounted


• Radiant tubes with bayonet electrical elements, gas or oil filing


• Self adjusting positive sealing door with a supervised pilot and flame curtain


• Reduced cycle times, higher productivity and lower operating costs


• CO/CH₄/CO₂ analyser, Oxygen probe


• Bi-directional, variable flow through propeller pumps within draft tubes and CFD designed baffle system ensure consistent hardness and reduced distortion


• Versatile, expandable PLC system with a touch screen MMI and SCADA programming that supervises the cycle, temperature, atmosphere flow/ potential, mechanical movements and interlocks.


• Data acquisition of process parameters, alarm conditions & printout


• Upper deck with atmosphere circulation for cooling the work basket in protective atmosphere. The system design allows cooling prior to reheating the same work basket

• Heat treatment of forgings


• Heat treatment of castings


• Annealing


• Stress relieving of pressure vessels


• Cooling of composite resin cylinders


• Curing of transformers


• Ageing & Homogenising

• Heavy duty winch mechanism


• Electric, gas or oil fired


• Gas sealing accessories


• Optional internal circulation


• Rapid cooling attachments


• Carousel for bogie realignment


• Flexible heat treatment cells

• Neutral Hardening & Tempering


• Carbonitriding


• Shallow Case Carburising


• Austempering


• Carbon Restoration &
  Hardening

Consistency of quality is better obtained when components are continuously quenched, a few pieces at a time instead of in a batch at periodic intervals. Of the total tonnage of heat treated components the majority do not require fixturing and can tumble into a quench tank. The ideal plant for all such components in terms of quality, capital cost as well as operating cost is a continuous conveyorised heating and quenching system. Components spend less time at temperature and consume less energy compared to batch furnaces. Continuous quenching, a few components at a time, ensures a high degree of quality consistency in terms of hardness, case depth and physical properties. Such plants with conveyorised auxiliary equipment for loading, washing and tempering are normally fully automated.

Soft handling, weigh feed, metered loading, vibratory conveyor, reciprocating feeder.

High intensity jet spray, dunk & spray, steam wash, ultra sonic, vapour degreasing & in line centrifuge, drying, continuous dirt filtration, oil seperation/recovery, salt recovery.

Gas tight hardening furnace shell, microporous insulation, atmosphere circulation, alloy belt with raised edges & auto alignment, electric radiant tube heaters, multizone thyristorised temperature control, gas fired recuperative radiant tubes, waste heat recovery from spent atmosphere & by hot belt return, multi atmosphere capability, endogas generator, methanol dissociater, PSA, onsite nitrogen & ammonia cracker.

Oil, hot oil or polymer, clog resistant cascade curtain, variable agitation, continuous dirt removal, air/water heat exchangers, air knife, electric heaters or gas tube burners, temperature, level & flow controls.

High convection (high uniformity) tempering, rapid heat up feature, jet heating system, nitrogen atmosphere capability, steam tempering facility, post temper blackening tank.

computer/touch screen HMI for user interface, SCADA programming based automatic plant and process control, production alarm & energy logging, several reporting formats.

into bins, weigh & discharge, auto bagging with data acquisition.

chiller tank (for 52100 steel parts, where required)

• Case Carburising


• Carbonitriding


• Neutral Hardening


• Carbon Restoration


• Nitrocarburising


• Normalising


• Annealing

The circular cross section of the furnace has a larger internal heat emitting surface area which allows quicker load recovery and a lower shell surface area that reduces wall losses.

The circular design also eliminates eddies which would be caused by sharp corners and allows effective and uniform atmosphere circulation around and beneath the work basket ensuring uniform temperature and stable atmosphere conditions.

Carefully considered circuitry part specification, manufacturing method and acceptance criteria ensures long trouble free performance.

low thermal mass fibre insulation for rapid and uniform temperature recovery and atmosphere conditioning.

high alloy, rugged long life design, bung mounted.

radiant tubes with bayonet electrical elements, gas or oil firing.

self adjusting positive sealing door with a supervised pilot and flame curtain.

reduced cycle times, higher productivity and lower operating costs.

CO/CH₄/CO₂ analyser, Oxygen probe.

bi-directional, variable flow through propeller pumps within draft tubes and CFD designed baffle system ensure consistent hardness and reduced distortion.

versatile, expandable PLC system with a touch screen MMI and SCADA programming that supervises the cycle, temperature, atmosphere flow/ potential, mechanical movements and interlocks. Data acquisition of process parameters, alarm conditions & printout.

upper deck with atmosphere circulation for cooling the work basket in protective atmosphere. The system design allows cooling prior to reheating the same work basket.

• Low thermal mass fibre insulation for rapid and uniform temperature recovery and atmosphere conditioning


• High alloy, rugged long life design, bung mounted


• Radiant tubes with bayonet electrical elements, gas or oil filing


• Self adjusting positive sealing door with a supervised pilot and flame curtain


• Reduced cycle times, higher productivity and lower operating costs


• CO/CH₄/CO₂ analyser, Oxygen probe


• Bi-directional, variable flow through propeller pumps within draft tubes and CFD designed baffle system ensure consistent hardness and reduced distortion


• Versatile, expandable PLC system with a touch screen MMI and SCADA programming that supervises the cycle, temperature, atmosphere flow/ potential, mechanical movements and interlocks.


• Data acquisition of process parameters, alarm conditions & printout


• Upper deck with atmosphere circulation for cooling the work basket in protective atmosphere. The system design allows cooling prior to reheating the same work basket

• Annealing (non ferrous)


• Through Hardening


• Shallow Case Hardening

• Electric or gas heated


• Auto loading


• Rotary prewash & postwash


• Atmosphere lock at inlet


• Cast alloy rotary retort


• Corrugated strip or radiant tube heating


• Oil or polymer quench


• Mesh belt or magnetic quench conveyor


• Rotary 2 pass tempering with fan

• Sintering of ferrous, non-ferrous, ceramic, hard metal, MIM and stainless steel parts


• Powder annealing

Walking beam furnaces are compact plants capable of high throughput. This is achieved by the ability to stack several layers of parts one over the other which results in a sharp reduction of the thermal mass. Atmosphere gas locks at both ends and between the debinding and sintering sections improves the furnace gas quality and helps in reducing the gas consumption significantly compared to open ended furnaces. Trays are carried on raised alumina blocks that ensure a high degree of temperature uniformity across the hot zone cross section. These furnaces primarily work with N₂, H₂, and N₂ + H₂ atmospheres (with or without humidification) or in air.

• NiCr, SiC, MoSi₂or Moly


• Automated loading & unloading


• Tray return conveyor system


• Smooth & soft tray handling


• Precision machined walking beam mechanism


• Heavy duty mechanism for upto 2000 Kg/M²(400 Lbs/ft²) hearth loading


• Multiple gas injection ports


• Multipoint gas sampling


• Safety monitoring of pressure, gas and water flow


• SCADA Control systems

• Hardening


• Carburising


• Carbonitriding


• FDC Carburising


• Carbo Austempering


• Nitriding


• Nitrocarburising


• Normalising


• Annealing


• Solutionising& Ageing


• Tempering


• Steam Tempering processes for combined wear and corrosion resistance.

• Rugged construction


• Distributor plate for optimised fluidisation


• Free expansion alloy retort


• Low gas consumption


• Auto fluidisation & process control


• Electrically heated or gas fired furnaces


• SiC or metal heaters with thyristorised temperature control


• One or more batch furnaces can be linked with one or more quench tanks, washing machines and tempering furnaces by a travelling (sealed quench) pick and place hood

One or more batch furnaces can be linked with one or more quench tanks, washing machines and tempering furnaces by a travelling (sealed quench) pick and place hood.

1. Designed for general heat treatment


2. Ability to operate as a continuous furnace or as individual batch furnaces depending on the load quantity and heat treatment specifications


3. Hood purged with nitrogen as a protective atmosphere while quenching.

• Automobile parts


• Tools and dies


• Machinery parts


• Hardware