Tilting Furnaces KB Gas-Fired, for Melting and Holding
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KB 400/12 Melting furnace plant consisting of two furnaces KB 360/12 with one work platform
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Hydraulic system with flame resistant hydraulic fluid

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Two-stage burner, mounted on furnace frame

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KB 240/12 for melting aluminum alloys

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Insulated connecting piece for side-wall exhaust gas vent to a connected customer suction system

The gas-fired or oil-heated tilting furnaces in the KB product lines provide for high melting output, making them ideal for melting operations. The use of high-quality insulation materials results in very low energy consumption. The two-stage burner can be configured for either gas or oil operation. Designed with an exhaust vent over the crucible edge, these models achieve very high melting rates and optimum energy efficiency.

  • KB../12 with Tmax of 1200 °C for aluminum and zinc alloys
  • KB../14 with Tmax of 1400 °C, suitable for copper alloys with a maximum melting bath temperature of 1300 °C (appropriate in some cases for aluminum)
  • Fuel heating with gas or oil
  • Two-stage output control: High load for melting operation, low load for holding operation with automatic switching between both modes
  • Modern burner system with optimized flame guide: High efficiency provided by over-pressure operation to keep out entrained air
  • Gas system consisting of pressure regulator, gas filter, manometer and solenoid valves
  • Safe flame monitoring
  • Burner technology with easy-to-service design, e.g. flame head can be removed from the rear when the burner is swung out
  • Burner technology compliant with DIN 746, Part 2
  • Designed for natural gas or liquid natural gas with 8.8 kWh/m3 - 25.9 kWh/m3
  • Required gas input pressure: 50 mbar
  • Operation with other fuels and/or with another gas input pressure possible
  • High melting output powered by high-performance burners and high-quality insulation
  • Crucible made of isostatically pressed clay-graphite
  • Electro-hydraulic tilting system with flame resistant HFC hydraulic fluid
  • Safe, uniform and precise pouring enabled by the optimum pivot point of the furnace and the manual operation of the slider valve
  • Multi-layered insulation with lightweight refractory bricks provide the furnace chamber lining, 1400  °C models come with an additional wear-and-tear layer made of copper-resistant refractory concrete
  • Emergency outlet for safe discharge of the melt in case of a crucible break
  • Exhaust gas discharge over the crucible edge, resulting in approx. 20 % more melting output compared to side exhaust discharge, design without swing lid
  • Over-temperature limiter for the furnace chamber with automatic reset to protect against over-temperature. The limit controller switches off the heating when the pre-set limit temperature has been reached and does not switch it on again until the temperature falls below the setting again.
  • Furnace chamber control with temperature measurement behind the crucible, recommended when using as pre-melt furnace
  • Side-wall exhaust gas vent for KB…/12 models, see additional equipment

Additional equipment

  • Side exhaust gas discharge for melt and holding operation
    • Low burn-off provides for high quality melt
    • Low hydrogen absorption by the melt
    • Low heat exposure for the operator in the area above the crucible
    • Swing lid which, when closed during holding operation, saves up to 50 % energy
    • Approx. 20 % lower melting output than for exhaust gas venting over the crucible edge
  • Insulated connecting piece (exhaust flue) for side-wall exhaust gas vent to a connected customer suction system
  • Exhaust gas collection hood for furnaces featuring exhaust gas venting over the crucible edge
  • Work platform or platform for easier charging
  • Crucible breakage monitoring with optical and acoustic signal (only for models KB ../12)
  • SMS-message to one or more mobile phones in case of crucible breakage. One or more furnaces can be connected to the messaging device in parallel
  • Bath control system
    • Furnace control via the bath temperature
    • Thermocouples in the furnace chamber and the melt
    • Improved melt quality ensured by a reduction in temperature overshoots
    • Integrated safety controller system that, in case of bath thermocouple breakage, continues to operate the furnace at a reduced output to prevent the melt from solidifying
ModelTmaxCrucibleCapacityMelting output3Consumption
holding lidConsumption
meltingBurner
outputOuter dimensions
in mmWeight in
 °C Kg AlKg CuKg Al/hKg Cu/hclosed KWh/hKWh/kgkWWDHkg
        AL     
KB 80/121200TP 2871805502201-101.3 - 1.53002030170015101800
KB 150/121200TP 4123309702401-111.3 - 1.53002140190017102200
KB 180/121200TP 412 H37012002601-131.3 - 1.53002140190018102400
KB 240/121200TP 587570-4001-151.3 - 1.53902650203018102600
KB 360/121200TBN 800750-4201-171.3 - 1.54502650208019102900
KB 400/121200TBN 11001000-4501-191.3 - 1.54502650208020803300
              
KB 40/141400R 400/TP 982120400-3302221.0 - 1.34002070170017702300
KB 60/141400R 500150500-3602251.0 - 1.34002070190018102500
KB 80/141400R 600180600-3802251.0 - 1.34002070190019102650
1At 700 °C 2At 1000 °C
3The stated melting outputs are maximum values. Daily operation comes up to roughly 80 %.

giesserei_englisch catalogue Foundry
(URL: http://www.nabertherm.com/produkte/giesserei/giesserei_englisch.pdf)