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Κλίβανοι κυκλοφορίας αέρα με θάλαμο NA 30/45 - N 500/85HA και κιβώτια παροχής αερίου

Air Circulation Chamber Furnaces, Electrically Heated Also for Debinding in Air and under Protective Gases

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

Air circulation chamber furnace NA 120/45 DB10 for debinding in air

Air circulation chamber furnace N 250/65 HA IDB with gas supply box for debinding und protective gases

Air circulation chamber furnace N 500/65 HA DB200 for debinding in air with catalytic afterburner system

Chamber furnaces with air circulation are characterized particularly by their very good temperature uniformity. As a result, they are well suited for processes such as calcination and drying e.g. ceramic materials. The design as a debinding furnace for safe debinding in air or in an inert atmosphere is possible. When used for debinding in air the exhaust gases are diluted by fresh air to reliably prevent an inflammatory atmosphere in the furnace chamber. For debinding processes that have to take place under inert gas, the IDB passive safety concept with a residual oxygen content of max. 3 % is recommended.

  • 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 (NA 30/45 - N 675/85 HA)

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
  • Designed for Tmax 950  °C
  • 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
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions6 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 30/6565029042026030870129013856.03-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 42*Please see page 73 for more information about supply voltage
2Heating only between two phases 4Additional equipment
3Depending on furnace design connected load might be higher 5Empty furnace
6External dimensions vary when furnace is equipped with additional equipment. Dimensions on request.
 

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