Forced Convection Chamber Furnaces up to 500 Liter Safety Technology

Suitable for charges containing solvents according to EN 1539.

Process Control

Function and equipment

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Zuluftoeffnung
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Due to their very good temperature uniformity, these chamber furnaces with air circulation are especially suitable for processes such as drying paints or components with residues of flammable cleaning agents or the evaporation of solvents bound in the components.

  • Design based on forced convection chamber furnaces
  • High-powered heating to maintain the required air exchange rates
  • Powerful exhaust air fan to ensure underpressure in the furnace
  • Defined and monitored air circulation and exhaust air
  • Visual and audible malfunction signals
  • Over-temperature limiter with manual reset as over-temperature protection for the furnace and the charge
  • Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
  • Defined application within the constraints of the operating instructions
  • Controller with touch operation P570 (50 programs with each 40 segments)
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
  • Freeware NTEdit for convenient program input via ExcelTM for WindowsTM on the PC
  • Freeware NTGraph for evaluation and documention of firings using ExcelTM for WindowsTM on the PC
  • MyNabertherm App for online monitoring of the firing on mobile devices for free download

Additional equipment

  • EN 1539 with reduced exhaust air flow rate to 25 % after the main evaporation time to save energy
  • EN 1539 with temporary switching off for processes in which no flammable substances are released
  • Process control and documentation via VCD software package for monitoring, documentation and control

Technical specifications

Model Tmax Inner dimensions in mm Volume Outer dimensions1 in mm Heating power Exhaust air flow rate Maximum volume of solvent in g
at temperature:
  in °C w d h in l W D H in kW2 in m3/h 75 °C 150 °C 250 °C 350 °C 450 °C
NA 120/45 LS 450 450 600 450 120 1250 1550 1950 18 100 - 120 51 20 9 5 4
NA 250/45 LS 450 600 750 600 250 1350 1650 2080 24 100 - 120 93 36 17 9 7
NA 500/45 LS 450 750 1000 750 500 1550 1900 2220 24 100 - 120 104 42 21 12 9
1External dimensions vary when furnace is equipped with additional equipment. Dimensions on request.
2Depending on the furnace design, connected load might be higher

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Customer Test Center

What furnace is the right choice for this specific process? This question cannot always be answered easily. Therefore, we have set up our modern test center which is unique in respect to size and variety. A representative number of furnaces is available for tests for our customers.