Forced Convection Chamber Furnaces Electrically Heated

Forced convection chamber furnace NA 120/45 Forced convection chamber furnace NA 250/45

Forced convection chamber furnace N 15/65HA as table-top model

Forced convection chamber furnace N 250/85HA with quenching bath

Forced convection chamber furnace NA 500/S with four compartments, each with roller conveyor and individual door

The very good temperature uniformity of these forced convection chamber furnace with air circulation provides for ideal process conditiones for annealing, curing, solution annealing, artificial ageing, preheating, or soft annealing and brazing. The forced convection chamber furnaces are equipped with a suitable annealing box for soft annealing of copper or tempering of titanium, and also for annealing of steel under non-flammable protective or reaction gases. The modular forced convection chamber furnace design allows for adaptation to specific process requirements with appropriate accessories.

  • Tmax 450  °C, 650  °C, or 850  °C
  • Stainless steel air-baffles in the furnace for optimum air circulation
  • Swing door hinged on the right side
  • Base frame included in the delivery, N 15/65 HA designed as table-top model
  • Horizontal air circulation
  • Temperature uniformity up to +/- 4 °C according to DIN 17052-1 (model N 15/65 HA up to +/- 7 °C)
  • Optimum air distribution enabled by high flow speeds
  • One frame sheet and rails for two additional trays included in the scope of delivery (N 15/65 HA without frame sheet)
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment (not for model N 15/65HA)

  • Optimization of the temperature uniformity up to +/- 3 °C according to DIN 17052-1
  • Air inlet and exhaust air flaps when used for drying
  • Controlled cooling with fan
  • Manual lift door (up to model N(A) 120/.. (HA))
  • Pneumatic lift door
  • Air circulation with speed control, recommendable for processes with light or sensitive charge
  • Additional frame sheet
  • Roller conveyor in furnace chamber for heavy charges
  • Annealing boxes
  • Feed and charging aids
  • Safety technology according to EN 1539 (NFPA 86) (models NA .. LS) for charges containing solvents
  • Inlets, measuring frames and thermocouples for TUS measurements charge or comparative measurements
  • Charge control
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmHeatingElectricalWeight
     power in kW3  
 °Cwdhin lWDHNA/NA .. LSconnection*in kg
NA 30/45(LS)45029042026030104012901385 3.0 / 9.01(3)-phase285
NA 60/45(LS)45035050035060110013701475 6.0 / 12.03-phase350
NA 120/45(LS)450450600450120125015501550 9.0 / 18.03-phase460
NA 250/45(LS)450600750600250135016501725 12.0 / 24.03-phase590
NA 500/45(LS)4507501000750500155019001820 18.0 / 24.03-phase750
NA 675/45(LS)4507501200750675155021001820 24.0 / 30.03-phase900
N 15/65 HA1650295340170154708454602.41-phase55
NA 30/6565029042026030870129013855.03-phase2285
N A 60/6565035050035060910139014759.03-phase350
NA 120/656504506004501209901470155012.03-phase460
NA 250/6565060075060025011701650168020.03-phase590
NA 500/65650750100075050012901890182527.03-phase750
NA 675/65650750120075067512902100182527.03-phase900
N 30/85 HA85029042026030607 + 255117513155.53-phase2195
N 60/85 HA85035050035060667 + 255125014009.03-phase240
N 120/85 HA850450600450120767 + 2551350150013.03-phase310
N 250/85 HA8506007506002501002 + 2551636186020.03-phase610
N 500/85 HA85075010007505001152 + 2551886201030.03-phase1030
N 675/85 HA85075012007506751152 + 2552100201030.03-phase1350
1Table-top model see page 14*Please see page 73 for more information about supply voltage
2Heating only beetween two phases 3Depending on furnace design connected load might be higher