Chamber furnaces

Industrial chamber furnaces

General purpose industrial chamber furnaces (GPC)

• Chamber capacities of 36, 65, 131 and 200 litres at 1200°C;
• Chamber capacities of 36, 65 and 131 at 1300°C;
• Low thermal mass insulation;
• Free radiating resistance wire elements
• Maximum temperature is reached very quickly;
• Hard wearing hearth is fitted as standard;
• Insulated door opens vertically keeping hot face away from operator
• Safety switch isolates power from elements whenever door is opened;
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1200°C Large chamber industrial furnace (LCF)

• For long term ageing of nickel based superalloys ranging from 25 - 800mm in length
• Process is carried out at temperatures between 700°C and 1000°C depending on size & specification of the component
• The furnaces are heated by heavy-gauge wire spiral elements located in the roof and below the hearth
• Temperature uniformity within the chamber is better than ± 10°C
• Specially designed retort constructed from 4mm thick inconel, which is 490mm (w) x 325mm (h) and 890mm (d)
• A sand seal provides a gas-tight fit between the base and the lid
• Atmosphere inlet/outlet pipes protrude from the base & through an aperture in the furnace door for connection to the inert gas supply
• The retort is lifted in/out of the furnace by a charging machine
• Maximum power rating 36kW
• Accurate temperature control is provided by a Eurotherm 2416 programmer with one programme and eight sgements
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1200°C Large chamber industrial furnace (LCF)

• Maximum operating temperatures of 1200°C and 1400°C
• Chamber capacities range from 125 to 675 litres
• 1200°C models are heated by heavy gauge spirally wound wire elements, located in the roof and under the hearth
• 1400°C models are heated by silicon carbide elements, located in the same positions
• Manually operated vertically sliding door is fitted as standard and keeps hot face insulation away from operator
• Pneumatically and electrically operated doors can be fitted as an option
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Front loading industrial chamber furnaces

• Maximum operating temperature 1000°C
• Guaranteed temperature uniformity of ± 25°C from 500°C to 1000°C
• Internal dimensions - 2500mm long x 3300mm wide
• Charge height - 800mm; hearth height - 1200mm
• Heated by wire spiral elements in the walls, roof, door & hearth
• Low thermal mass ceramic fibre insulation
• Hard wearing hearth is supplied with an air cooling system designed to rapidly cool the hearth from 990°C to 300°C in 5 hours
• Temperature sensors - 2 off type K thermocouples
• Limit switches prevent power to the elements when door is open
• Electrically operated vertically rising counterbalanced door
• Maximum power consumption - 300kW
• Power supply requirements - 415 volts 3-phase 50Hz 4 wire fused
• Holding power - 50kW @ 1000°C
• Will heat a charge of 10000kg + hearth to 1000°C at 100°C/hour
• Overall dims. (door closed) - 3905mm(l) x 4480mm(w) x 2870mm(h)

750°C Air recirculating industrial chamber furnace (HRF)

• Maximum operating temperature 750°C
• Standard chamber capacities of 22, 112 & 324 litres
• Heating is provided by resistance wire elements on both sides of the chamber
• Easy clean stainless steel inner chamber and zinc coated outer case
• A powerful centrifugal fan and airguide system force air over the elements and back through the work chamber, providing uniform temperature distribution and rapid heat transfer
• Side-hinged double-sealed door, which minimises heat losses, is fitted as standard
• Double skin construction ensures safe outer case temperature
• Suitable for stress relieving, tempering, normalising, annealing & other low temperature heat treatment processes