Technological processes related to tempering and stress relief after welding require high-precision temperature control and uniform temperature distribution in the working chamber. For the processes involving heat treatment of large-sized heavy charges we offer the NKO chamber furnaces.
 |  |  | | NKO 15.20.8/7 | Fan unit | NKO 7.7.10/7 | | Design features:
- Max temperature up to 700°C.
- Forced atmosphere circulation system (fans, screens, diffusers).
- Three-side heating: air passes at a high speed from sidewalls heaters located behind the screens and completes the circuit flowing through the charge which is heated by the hearth heaters from below.
- Uniformity within ±5°C.
- roof and door are lined with cost-saving Unifrax fiber insulation and walls have fiber or multilayer lining.
- Power consumption is 30-50% less as compared to brick linings.
- M and MDO embodiment furnaces are equipped with a motorized hearth allowing to charge up to 30 tons into the large-sized furnaces.
- Multizone temperature control system.
- Emergency shutdown at temperature rise over 750°C.
- Cast heat-resistant hearth plates and carborundum floor plates protecting the hearth against mechanical shocks.
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Optional features:
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| | NKO 7.7.10/7МI4-К | NKO 20.40.15/7М | NKO 8.10.8/7 | CB - car bottom; VPM– motorized drive hearth outrun; M – motorized drive to move the hearth and lift the door
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PGK 12.6.6/13 |
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PKM 6.12.5/12,5 |
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CGC 8.20/9,5 |
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