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Air Circulation Bogie Hearth Furnaces, Electrically Heated or Gas-Fired
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 W 3300/85S with chain drive Bogie hearth furnace with air circulation W 19150/60AS for tempering of semi-finished borosilicate glass products
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Cooling fan for accelerated cooling

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W 10430/85AS in custom sizes

Bogie hearth furnaces with powerful air circulation are used when an optimal temperature uniformity in the low temperature range is required. They are particularly useful for processes like glass tempering or cooling. With the wide range of additional equipment the furnaces can be individually adapted to the individual process.

  • Tmax 600  °C or 850  °C
  • Dual shell housing with rear ventilation provides for low shell temperatures for the 850  °C models
  • Swing door hinged on the right side
  • Heating from chrome steel heating elements in the intake area of the air circulation system for the 600  °C models
  • Heating from three sides (both side walls and the trolley) for the 850  °C models
  • High-performance air circulation fan with vertical circulation
  • Temperature uniformity up to ∆T 10 K according to DIN 17052-1
  • Bottom heating protected by SiC tiles on the bogie providing level stacking surface for the 850  °C models
  • Furnace chamber fitted with inner sheets made of stainless steel 1.4301 for 600  °C models and of 1.4828 for 850  °C models
  • Insulation structured with high-quality mineral wool for 600  °C models
  • Insulation made of high-quality, non-classified fiber material for 850  °C models
  • Bogies with flanged wheels running on rails for easy and precise movement of heavy loads
  • Electric chain-driven bogie in combination with rail operation for smooth movement of heavy loads from model W 4800
  • Over-temperature limiter with manual reset for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load

Additional equipment

  • Direct gas heating or upon request with indirect gas heating with radiation tube
  • Custom-built sizes
  • Electric chain-driven bogie in combination with rail operation for smooth movement of heavy loads up to Model W 4000
  • Optimization of the temperature uniformity up ∆T 6 K according to DIN 17052-1
  • Bogie running on steel wheels with gear rack drive, no rails in front of the furnace necessary
  • Different possibilities for an extension to a bogie hearth furnace system:
    • Additional bogies
    • Bogie transfer system with parking rails to exchange bogies running on rails or to connect multiples furnaces
    • Motor-driven bogies and cross-traversal system
    • Fully automatic control of the bogie exchange
  • Electro-hydraulic lift door
  • Motor-driven exhaust air flaps, adjustable via the program
  • Uncontrolled or controlled cooling system with frequency-controlled cooling fan and motor-driven exhaust air flap
  • Multi-zone control adapted to the particular furnace model provides for optimum temperature uniformity in the 850  °C models
  • Commissioning of the furnace with test firing and temperature uniformity measurement (also with load) for the purpose of process optimization
  • Designed for Tmax 950  °C, fan blade driven indirectly via a belt to protect the air recirculation motor against over-heating
  • Process documentation and control with Controltherm MV software package and the Nabertherm NCC control center for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectrical
 °Cwdhin lWDHload/kWconnection*
W 1000/.. A 8001600800100018002390230550.03-phase
W 1600/.. A 100016001000160020002390253550.03-phase
W 2200/.. A 100022501000220020003040253595.03-phase
W 3300/.. A600120022501200330022003040274595.03-phase
W 4000/.. Aor1500225012004000250030402780120.03-phase
W 4800/.. A8501200330012004800220040902780120.03-phase
W 6000/.. A 1500330012006000250040902900156.03-phase
W 6600/.. A 1200460012006600220053902770152.03-phase
W 7500/.. A 1400385014007500240046402980154.03-phase
W 8300/.. A 1500460012008300250053902780203.03-phase
*Please see page 61 for more information about supply voltage

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Chamber Ovens and Dryers, Electrically Heated or Gas-Fired Heat Soak Test Ovens for Toughened Safety Glass (TSG)
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N 4010/45 HA N 12000/26 HA with individual custom measurements
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2 x N 10000/45HA

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N 2880/60HAS for glass cooling with frame for opening of individual chamber segments

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Adjustable air outlets for optimization of the temperature uniformity

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Temperature recording in accordance with EN 14179-1

N 560/26.. - N 10000/45…

These chamber ovens are available for maximum working temperatures of 260 °C or 450 °C. They are suitable for numerous processes such as pre-heating of moulds, ageing or drying. The version suitable for temperatures up to 450 °C is recommended for Heat Soak testing of Toughened Safety Glass (TSG). During a Heat Soak Test in accordance with EN 14179-1 the panes are exposed to a temperature of 290 °C for at least four hours in order to transform nickel sulfide inclusions and hence to prevent the pane from breaking spontaneously later. The documentation of the heat treatment process is strongly recommended. Program entry, visualization and the documentation of the process are achieved by means of the PLC-control in combination with the powerful Nabertherm Control Center (NCC), which registers and archives the temperatures at different measuring points on the pane.

  • Tmax 260 °C or 450 °C
  • Heated electrically or with gas
  • Electrical heating by means of heater coils
  • Direct gas heating or optionally indirect gas heating with temperature transfer via steel tube or heat exchanger
  • Available with horizontal (type/HA) or vertical air circulation (type/A) for optimal uniformity in your charge
  • Ground level charging without floor insulation for 260 °C models
  • Temperature uniformity up to ∆T 6 K according to DIN 17052-1
  • Optimal air circulation for your charge by means of adjustable air outlets
  • Furnace chamber lined with alloy 314 (AISI)/(DIN material no. 1.4841)
  • Low shell temperature by means of high quality mineral wool insulation
  • Manually adjustable air inlet and exhaust air vent
  • High air exchange for fast drying processes
  • Furnace sizes suitable for common charging systems, such as pallets, baskets, etc.
  • Double-winged door for models with an internal width of more than 1500 mm
  • Over-temperature limiter with manual reset for thermal protection class in accordance with EN 60519-2 as temperature limiter controler to protect the oven and load

Additional equipment

  • Data recording via Nabertherm Control Center (NCC) in accordance with the requirements of EN 141791 for Heat Soak Tests of Tempered Safety Glass (TSG)
  • Racks for loading of standing glass panes
  • Optional floor insulation for improved temperature uniformity on 260 °C models
  • Entry ramp or track cutouts for floor-level charging of models with insulated bottom
  • Electro-hydraulic lift door
  • Fan system for faster cooling with manual or automatic control
  • Motor-driven control of exhaust air flaps for better ventilation of the furnace chamber
  • Window and furnace chamber illumination
  • Safety technology according to EN 1539 for charges containing solvents
  • Catalytic or thermal exhaust gas cleaning systems
  • Custom sizes up to 40,000 liters and charge weights up to 30 tons
ModelTmaxInner dimensions in mmVolumeCirculationConnected load/kWElectrical
 °Cwdhin lrate m³/h260 °C450 °Cconnections*
N 9900/.. A260 or 45015003000220099002150085.085.0¹/100.03-phase
N 17600/.. A260 or 4502000400022001760033000130.0130.0¹/145.03-phase
N 41600/.. A260 or 4502000650032004160064000200.0200.0¹/230.03-phase
          
N 560/..260 or 450750100075056090013.013.0¹/ 19.03-phase
N 1000/..260 or 4501000100010001000360018.018.0¹/ 40.03-phase
N 1500/..260 or 4501500100010001500360022.022.0¹/ 40.03-phase
N 1500/..1260 or 4501000150010001500360022.022.0¹/ 40.03-phase
N 2000/..260 or 4501500110012002000640022.022.0¹/ 46.03-phase
N 2000/..1260 or 4501100150012002000640022.022.0¹/ 46.03-phase
N 2010/..260 or 4501000100020002000720030.030.0¹/ 54.03-phase
N 2880/..260 or 4501200120020002880900054.054.0¹/ 66.03-phase
N 4000/..260 or 4501500220012004000900047.047.0¹/ 65.03-phase
N 4000/..1260 or 4502200150012004000900047.047.0¹/ 65.03-phase
N 4010/..260 or 4501000200020004000900054.054.0¹/ 66.03-phase
N 4500/..260 or 45015001500200045001280054.054.0¹/ 66.03-phase
N 5600/..260 or 4501500250015005600900069.069.0¹/ 93.03-phase
N 6750/..260 or 45015003000150067501920098.098.0¹/116.03-phase
N 7200/..260 or 45020001500240072001800093.093.0¹/117.03-phase
N 10000/..260 or 4502000250020001000025600106.0106.0¹/130.03-phase
¹Reduced connected power for plastics applications *Please see page 61 for more information about supply voltage

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Chamber Dryers, Electrically Heated or Gas-Fired Ovens for Laminated Safety Glass (LSG)
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 KTR 8000 with clean room specs Standard models
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KTR 6125

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N 12012/26 HAS1 N with drawer shelves

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Air circulation in the chamber dryer

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KTR 3100/S for curing of composites in vacuum bags incl. pump and necessary connections in the oven chamber

The chamber dryers of the KTR range can be used for complex drying processes and heat treatment of charges of normal weight and packing density to an application temperature of 260 °C. The high-performance air circulation enables optimum temperature uniformity throughout the usable space. A wide range of accessories allow the furnace to be modified to meet specific process requirements. The chamber dryers can also be used for production of laminated safety glass (LSG). During this process two panes are bonded using a laminating foil and entered into the oven inside a vacuum bag. From outside the furnace a vacuum is generated via hose connection in order to avoid air inclusions between the panes during the heat treatment.

  • Tmax 260  °C
  • Electrically heated (via a heating register with integrated chrome steel heating elements) or gas-fired (direct gas heating including injection of the hot air into the intake duct)
  • Temperature uniformity up to ∆T 6 K according to DIN 17052-1 (for design wihout track cutouts)
  • High-quality mineral wool insulation provides for outer temperatures of < 20  °C above room temperature
  • High air exchange for fast drying processes
  • Double-wing door for furnaces KTR 3100 and larger
  • Over-temperature limiter with manual reset for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the dryer and load
  • Incl. floor insulation

Additional equipment

  • Entry ramp for pallet trucks or track cutouts for charging cart
  • Connection ports for vacuum bags inside the oven for laminated safety glass (LSG). The vacuum pump is connected on the outside of the furnace.
  • Optimal air circulation for individual charges by means of adjustable air outlets
  • Fan system for faster cooling with manual or motor-driven control
  • Programmed opening and closing of exhaust air flaps
  • Observation window and furnace chamber lighting
  • Safety technology according to EN 1539 for charges containing solvents
  • Charging cart with or without rack system
  • Custom-built sizes
  • Design for clean room heat treatment processes
  • Process control and documentation with Controltherm MV software package
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectrical
 °Cwdhin lWDHload kWconnection*
KTR 1500260100010001500150019301430231521.03-phase
KTR 3100260125012502000310021601680288030.03-phase
KTR 4500260150015002000450024101930288048.03-phase
KTR 6125260175017502000612526602180300050.03-phase
KTR 8000260200020002000800029102430300059.03-phase
*Please see page 61 for more information about supply voltage

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Ovens, Electrically Heated also with Safety Technology According to EN 1539
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TR 240 TR 60 with observation window
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TR 450 with observation window

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TR 1050 with double door

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Electrical rotating device as additional equipment

TR 60 - TR 1050

With their maximum working temperature of up to 300 °C and forced air circulation, the ovens achieve a perfect temperature uniformity which is much better than in ovens of most competitors. They can be used for various applications such as e.g. drying, sterilizing or warm storing. Ample warehousing of standard models provides for short delivery times.

  • Tmax 300  °C
  • Working range: + 5  °C above room temperature up to 300  °C
  • Models TR 60 - TR 240 designed as tabletop models
  • Models TR 450 and TR 1050 designed as floor standing models
  • Horizontal, forced air circulation results in temperature uniformity better than ∆T 8 K
  • Stainless steel chamber, alloy 304 (AISI)/(DIN material no. 1.4301), rust-resistant and easy to clean
  • Large handle to open and close the door
  • Charging in multiple layers possible using removeable grids (number of removeable grids included, see table to the right)
  • Large, wide-opening swing door, hinged on the right with quick release for models TR 60 - TR 450
  • Double swing door with quick release for TR 1050
  • TR 1050 equipped transport rollers
  • Infinitely adjustable exhaust at the rear wall with operation from the front
  • PID microprocessor control with self-diagnosis system
  • Solid state relays provide for lownoise operation

Additional equipment

  • Over-temperature limiter with manual reset for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Infinitely adjustable fan speed of the air circulation fan
  • Window for charge observing
  • Further removeable grids with rails
  • Side inlet
  • Stainless steel collecting pan to protect the furnace chamber
  • Safety Technology according to EN 1539 for charges (TRS) containing liquid solvents up to model TRS 240, achievable temperature uniformity ∆T 16 K
  • Transport costors for model TR 450
  • Various modifications available for individual needs
  • Upgrading available to meet the quality requirements of AMS 2750 E or FDA
  • Process control and documentation with Controltherm MV software package
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeightGrids in-GridsMax.
 °Cwdhin lWDHload kW²connection*in kgcludedmax.total load¹
TR 60300450380350607006506903.01-phase9014120
TRS 60260450360350577006806906.33-phase9214120
TR 1203006503805001209006508403.11-phase12027150
TRS 1202606503605001179006808406.33-phase12227150
TR 24030075055060024010008209403.11-phase16528150
TRS 24026075053060023510008509406.33-phase16728150
TR 4503007505501100450100082014406.33-phase235315180
TR 1050300120063014001050147095519209.33-phase450414250
¹Max load per layer 30 kg *Please see page 61 for more information about supply voltage ²If EN 1539 is ordered power rating will increase

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Chamber Furnaces with Air Circulation, Electrically Heated
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N 120/65 HA N 60/85HA with torch as additional equipment
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N 15/65HA as table-top model

N 15/65HA, N 30/45HA - N 500/85HA

These chamber furnaces with air circulation are characterized by their extremely high temperature uniformity. Hence, they are especially suitable for processes such as cooling, crystalizing, pre-heating, curing, but also for numerous processes in tool making. Due to the modular concept, the furnaces can be adjusted to the process requirements by adding suitable equipment.

  • Tmax 450 °C, 650 °C, or 850 °C
  • Horizontal air circulation
  • Swing door hinged on the right
  • Temperature uniformity up to ∆T 8 K according to DIN 17052-1
  • Heating from bottom, sides and top
  • Optimum air flow and temperature uniformity through high circulation rates
  • One shelf and rails for two additional shelves included (N 15/65 HA without removable tray)
  • Air baffle box of stainless steel inside the furnace chamber for optmum air circulation
  • Base frame included in the delivery, N 15/65 HA designed as table-top model
  • Switchgear with solid-state relays
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeight
 °Cwdhin lWDHload kWconnection*in kg
N 30/45 HA45029042026030607 + 255117513153.61-phase195
N 60/45 HA45035050035060667 + 255125014006.63-phase240
N 120/45 HA450450600450120767 + 255135015009.63-phase310
N 250/45 HA4506007506002501002 + 2551636186019.03-phase610
N 500/45 HA45075010007505001152 + 2551886201028.03-phase1030
            
N 15/65 HA¹650295340170154708454602.71-phase55
N 30/65 HA65029042026030607 + 255117513156.03-phase²195
N 60/65 HA65035050035060667 + 255125014009.63-phase240
N 120/65 HA650450600450120767 + 2551350150013.63-phase310
N 250/65 HA6506007506002501002 + 2551636186021.03-phase610
N 500/65 HA65075010007505001152 + 2551886201031.03-phase1030
            
N 30/85 HA85029042026030607 + 255117513156.03-phase²195
N 60/85 HA85035050035060667 + 255125014009.63-phase240
N 120/85 HA850450600450120767 + 2551350150013.63-phase310
N 250/85 HA8506007506002501002 + 2551636186021.03-phase610
N 500/85 HA85075010007505001152 + 2551886201031.03-phase1030
¹Table-top model*Please see page 61 for more information about supply voltage ²Heating only beetween two phases

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