Termikus folyamattechnika

Forced Convection Chamber Furnaces < 675 Liters Electrically Heated

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

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

Forced convection chamber furnace NA 500/45S with four compartments, each with roller conveyor and individual door

Forced convection chamber furnace NA 500/65

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

The very good temperature uniformity of these 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, NA 15/65 designed as table-top model
  • Horizontal air circulation
  • Temperature uniformity up to +/- 4 °C according to DIN 17052-1 (model NA 15/65 up to +/- 5 °C)
  • Optimum air distribution enabled by high flow speeds
  • One frame sheet and rails for two additional trays included in the scope of delivery (NA 15/65 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 NA 15/65)

  • 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 mmHeatingElectricalWeightHeat-up time5Cool-down time5 from Tmax
     power in kW3  to Tmaxto 150 °C in minues
 °Cwdhin lWDHNA/NA .. LSconnection*in kgin minutesFlaps4Fan cooling4
NA 30/45(LS)45029042026030104012901385 3.0 / 9.01(3)-phase28512012030
NA 60/45(LS)45035050035060110013701475 6.0 / 12.03-phase35012024030
NA 120/45(LS)450450600450120125015501550 9.0 / 18.03-phase4606024030
NA 250/45(LS)450600750600250135016501725 12.0 / 24.03-phase5906012030
NA 500/45(LS)4507501000750500155019001820 18.0 / 24.03-phase7506024030
NA 675/45(LS)4507501200750675155021001820 24.0 / 30.03-phase9009027060
               
NA 15/651650295340170154707904602.81-phase6040--
NA 30/6565029042026030870129013855.03-phase228512027060
N A 60/6565035050035060910139014759.03-phase35012027060
NA 120/656504506004501209901470155012.03-phase4606030060
NA 250/6565060075060025011701650168020.03-phase5909027060
NA 500/65650750100075050012901890182527.03-phase7506024060
NA 675/65650750120075067512902100182527.03-phase9009027090
               
N 30/85 HA85029042026030607 + 255117513155.53-phase219518090090
N 60/85 HA85035050035060667 + 255125014009.03-phase240150900120
N 120/85 HA850450600450120767 + 2551350150013.03-phase310150900120
N 250/85 HA8506007506002501002 + 2551636186020.03-phase610180900180
N 500/85 HA85075010007505001152 + 2551886201030.03-phase1030180900210
N 675/85 HA85075012007506751152 + 2552100201030.03-phase1350210900210
1Table-top model see page 60*Please see page 89 for more information about supply voltage
2Heating only between two phases 4Additional equipment
3Depending on furnace design connected load might be higher 5Empty furnace
 

Protective Gas Boxes for Models NA 30/45 - N 500/85HA

Protective gas box with insertations Forced convection chamber furnace N 250/85 HA with protective gas box

Protective gas box with extended piping for usage in a large furnace model

For the heat treatment, workpieces are placed in the box, the lid is locked using the sealing locks and flushed with protective gas outside the furnace for some time and then placed in the furnace. Depending on the weight, a charging cart (page 30) is recommended.

Basic Version

  • For non-combustible protective and reactive gases argon, nitrogen and forming gas (observe national regulations)
  • Protective gas box with fiber seal and cover with locks, inert gas introduction via a pipe into the bottom of the box
  • Protective gas connection via quick coupling with hose connector (inner diameter 9 mm)
  • Piping for gas inlet and outlet through the furnace collar
  • Models N 250/..HA, NA 250/.., N 500/..HA und NA 500/.. will be delivered without bootom frame sheet
  • Heat-resistant alloy: 309 (AISI)/(DIN material no. 1.4828)
  • Charge thermocouple type K for temperature display or charge control

Additional equipment

  • Digital temperature display
  • Gas supply systems
  • Extended gas piping for the use of smaller boxes in larger furnace models
  • Draw hook
  • Charging cart
Article no. FurnaceInner dimensions in mmOuter dimensions in mm1Charging method
(Furnace with hinged door)(Furnace with lift door) wdhWDHof the box
631000410631000763NA 30/.., N 30/..HA220320160282376242draw hook
631000411631000764NA 60/.., N 60/..HA270420260336460340draw hook
631000412631000765NA 120/.., N 120/..HA350520340436560430draw hook
631000413631000766NA 250/.., N 250/..HA480630460546680600charging stacker
631000414631000767NA 500/.., N 500/..HA630780610696836760charging stacker
Article no. 601655055, 1 set of fiber insulation cord, 5 strips of 610 mm each1 Without piping
Work space = box inner dimensions: - 30 mm to all sides
Larger boxes and custom dimensions available upon request
 

Protective Gas Boxes with Evacuation Lid for Models NA 30/45 - N 500/85HA

Protective gas box with evacuation lid

Design as the boxes described above, but with additional evacuation lid and connection. Before the box is placed in the furnace, in a cold state an evacuation and protective gas atmosphere are alternately generated to force out the oxygen and achieve a pure atmosphere.

  • Protective gas box with fiber sealing and lid with locks, recess for evacuation lid, gas inlet via a pipe into the bottom of the box
  • Evacuation lid with rubber sealing (Elastomer) and manometer
  • Protective gas connection via threeway ball valve and quick coupling with hose connector (inner diameter 9 mm)
  • Piping for gas inlet and outlet through the furnace collar

Additional equipment

  • Digital temperature display
  • Vacuum pump
  • Gas supply systems
  • Extended gas piping for the use of smaller boxes in larger furnace models
  • Draw hook
  • Charging cart
Article no. FurnaceInner dimensions in mmOuter dimensions in mm1Charging method
(Furnace with hinged door)(Furnace with lift door) wdhWDHof the box
631000559631000806NA 30/.., N 30/..HA170300130258388222draw hook
631000560631000807NA 60/.., N 60/..HA230380220318468297draw hook
631000561631000808NA 120/.., N 120/..HA330480320418568412draw hook
631000562631000809NA 250/.., N 250/..HA430580370518668532charging stacker
631000563631000810NA 500/.., N 500/..HA560810530648898692charging stacker
Article no. 601655055, 1 set of fiber insulation cord, 5 strips of 610 mm each1 Without piping and evacuation lid
Work space = box inner dimensions: - 30 mm to all sides
Larger boxes and custom dimensions available upon request
 

Protective Gas Boxes for Automotive (CQI-9) and Aeronautic (AMS7NADCAP) Norms

Protective Gas Boxes According to AMS 2750 E, Instrumentation Type D for Forced Convection Furnaces

These boxes are based on the standard protective gas boxes for furnaces with hinged door. To fulfill AMS 2750 E, instrumentation, type D requirements the boxes are equipped with necessary measuring ports.

  • Temperature uniformity class 2: +/- 5 °C in useful space
  • Additional port for customers flexible SAT thermocouple with max. 1,5 mm diameter
  • Thermcouple, overtemperature protection, metal clad thermocouple, type N with plug
Article no. FurnaceInner dimensions in mmOuter dimensions in mm1
(Furnace with swinging door)(Furnace with lift door) wdhWDH
631000410631000763NA 30/.., N 30/..HA220320160282376242
631000411631000764NA 60/.., N 60/..HA270420260336460340
631000412631000765NA 120/.., N 120/..HA350520340436560430
631000413631000766NA 250/.., N 250/..HA480630460546680600
631000414631000767NA 500/.., N 500/..HA630780610696836760
Article no. 601655055, 1 set of fiber insulation cord, 5 strips of 610 mm each1 Without piping
Work space = box inner dimensions: - 30 mm to all sides
Larger boxes and custom dimensions available upon request
 

Protective gas box with evacuation lid according to AMS 2750 E
Protective Gas Boxes with Evacuation Lid According to AMS 2750 E, Instrumentation type D

These boxes are based on the standard protective gas boxes with evacuation lid for furnaces with hinged door. Before the box is placed in the furnace, in a cold state an evacuation and protective gas atmosphere are alternately generated to force out the oxygen and achieve a pure atmosphere.

  • Temperature uniformity class 2: +/- 5 °C in useful space
  • Additional port for customers flexible SAT thermocouple with max. 1,5 mm diameter
  • Thermcouple, overtemperature protection, metal clad thermocouple, type N with plug
Article no. FurnaceInner dimensions in mmOuter dimensions in mm1
(Furnace with hinged door)(Furnace with lift door) wdhWDH
631001049631001054NA 30/.., N 30/..HA170300130258388222
631001050631001055NA 60/.., N 60/..HA230380220318468297
631001051631001056NA 120/.., N 120/..HA330480320418568412
631001052631001057NA 250/.., N 250/..HA430580370518668532
631001053631001058NA 500/.., N 500/..HA560810530648898692
Article no. 601655055, 1 set of fiber insulation cord, 5 strips of 610 mm each1 Without piping
Work space = box inner dimensions: - 30 mm to all sides
Larger boxes and custom dimensions available upon request