Стекло

Fusing Furnaces with Wire Heating with fixed Table

GF 75 GF 600

GF 240

"Combing" in a GF 240

GF 75 - GF 1425

The furnaces in the GF75 - GF 1425 product line were conceived for professional glass artists. The heating elements, closely arranged, protected in quartz tubes, ensure a very high degree of temperature uniformity during fusing or during bending across the whole table surface. The optimized insulation, made of non-classified fibrous material in the furnace hood and robust lightweight refractory bricks in the furnace floor allow clean and safe operation. High current connection capacities assure that the furnace can be rapidly warmed up. The complete firing sequence is controlled by the intuitively operated Controller P300.

  • Tmax 950 °C
  • Heating element, protected in quartz tubes
  • High current connection capacities for short warm-up times and energy-saving way of working
  • Arranged closely beside each other on the top, heating elements ensure direct and uniform radiation of the glass
  • Level table surface with insulation made of robust lightweight refractory bricks and marked charge surface
  • Hood insulation made of non-classified ceramic fibers for rapid warming up and cooling down
  • Solid state relays provide for low-noise operation
  • Fast power switching for precise temperature uniformity
  • Type “K” (NiCr-Ni) thermocouple inside the furnace chamber for precise temperature measurement
  • Double-wall, adjustable hood made of structured stainless steel with lid made of perforated sheet metal
  • Attractive and professional design enhances your image
  • Hood very easy to open and close, supported by high-quality compressed-gas springs
  • Adjustable, large quick-release fasteners - can be used while working in gloves
  • Large handles on the left and right side of the hood for opening and closing the furnace
  • Angled sight ports with plugs let you see the progress of your work and cool quickly
  • Robust base on rollers (two of them can be locked down) with tray for glass and tools
  • Controller integrated to save space on the right side of the furnace
  • Other sizes or custom designs available on request
  • Comfortable charging height with base of 870 mm
  • Exhaust air flap on hood for rapid cooling as additional equipment
ModelTmaxInner dimensions in mmFloor spaceOuter dimensions in mmConnectedElectricalWeight
 °Cwdhin m²WDload kWconnection*in kg
GF 75950 6206203100.38110096513103.61-phase180
GF 75 R950 6206203100.38110096513105.53-phase¹180
GF 190 LE95010106204000.62148096514006.01-phase²245
GF 190 95010106204000.62148096514006.43-phase¹245
GF 24095010108104000.8114801155140011.03-phase250
GF 380950121011004001.3316801465140015.03-phase450
GF 42095016609504001.5721301315140018.03-phase500
GF 520950121011604001.4016801525140015.03-phase550
GF 600950201010104002.0324801375140022.03-phase600
GF 920950211011604002.4425801525140026.03-phase850
GF 1050950231012104002.7927801575140032.03-phase1050
GF 1425950251015104003.7928801875140032.03-phase1250
¹Heating only beetween two phases *Please see page 61 for more information about supply voltage ²Fusing of 32 A if connected to 230 V ³Base included
 

Fusing Furnaces with Wire Heating with movable Table

GFM 1050 GFM 1050 with electrically driven exhaust air flaps and locking mechanism for the cover

GFM 600 with changeable table system for shorter process times

Locking device provides for defi ned hood opening in different positions and accelerated cooling

Flap with inspection glass as additional equipment for easy observation of the glass.

Locking device provides for defined lid opening in different positions and accelerated cooling

GFM 420 - GFM 1050

The GFM product line was developed to meet the special requirements of production. For different applications different table depths can be supplied. Standard is a table for fusing. Various tables and tubs with different heights and numerous additional equipments are available as system add-ons. Especially economical is the alternating table system, in which one table is loaded while the other one is in the furnace.

  • Tmax 950 °C
  • Infrared heated in hood which is attached to stand
  • Delivered with one table
  • Table on wheels, freely movable
  • Level table surface with insulation made of robust lightweight refractory bricks and marked charge surface
  • Comfortable charging height with base of 870 mm
  • Heating element, protected in quartz tubes
  • High current connection capacities for short warm-up times and energy-saving way of working
  • Arranged closely beside each other on the top, heating elements ensure direct and uniform radiation of the glass
  • Solid state relays provide for low-noise operation
  • NiCr-Ni thermocouple inside the furnace for precise temperature measurement
  • Dual shell housing, adjustable hood made of structured stainless steel with lid made of perforated sheet metal
  • Hood insulation made of non-classified ceramic fibers for rapid warming up and cooling down
  • Attractive design and solid construction
  • Hood very easy to open and close, supported by high-quality compressed-gas springs
  • Adjustable, large quick-release fasteners - can be used while working in gloves
  • Large handles on the left and right side of the hood for opening and closing the furnace
  • Supply air and glass inspection ports with insulated doors, viewing window as an additional equipment

Additional equipment for fusing furnaces GF and GFM

  • Motor-driven lid opening for faster cooling, programmable via the extra controller function, for models GF 380 and/or GFM 380 up
  • Bottom heating for uniform through heating of large objects as additional equipment
  • Cooling fan for accelerated cooling with closed lid
  • Additional tables for extension of the furnace system
  • Exchangeable table system for utilization of the residual heat of the furnace. Cycle times can be shortened by changing the tables in warm condition (depending on the ability of the respective glass to cope with temperature change)
  • Exhaust air flap on hood for rapid cooling
  • Air inlet flap with window for observing the glass
ModelTmaxInner dimensions in mmFloor spaceOuter dimensions in mmConnectedElectricalWeight
 °Cwdhin m²WDHload kWconnection*in kg
GFM 42095016508503801.40240014801400183-phase410
GFM 520950120011503801.38195017801400153-phase430
GFM 600950200010003802.00275016301400223-phase610
GFM 920950210011503802.42285017801400263-phase740
GFM 1050950230012003802.76305018301400323-phase860
*Please see page 61 for more information about supply voltage
 

Tub Furnaces with Wire Heating

GW 1660 Top-hat furnace GW 2208/S tailor-made, electro-hydraulically driven hood, tub can be pulled out on rails

GW 2200

Indirect cooling behind the insulation for reduction of turbulences in the furnace chamber

Bottom heating covered by SiC tiles to create level stacking support

Automatic lid opening via electromechanical spindle

Motor-driven exhaust air flaps as additional equipment

GW 1660 with charge

GW 830 - GW 8000

For slumping and bending of complex glass parts, e.g. glass furniture, shower cabins, etc., tub furnaces are the right choice. Full coverage heating: from the lid, all 4 sides and the tub bottom. Due to the modular system additional tubs in customized dimensions can be provided.

  • Tmax 900 °C
  • Full coverage heating: from lid, all 4 sides and bottom
  • 3-zone temperature control from top to bottom for optimal temperature uniformity
  • Heating elements mounted on ceramic support tubes for free heat radiation and long service life
  • Bottom heating covered by SiC tiles
  • Hood insulated with high-quality fiber materials
  • Tub bottom insulated with multi-layer of insulation, lightweight refractory bricks on the hot face
  • Hinged hood as standard version
  • Gas operated dampers provide for easy hood opening
  • Manually operated exhaust air flaps
  • Tub on wheels can be pulled out manually
  • Rails on floor for perfect tub guidance included

Additional equipment

  • Furnaces tailor-made to individual customer measurements
  • Interchangeable table system on rails, electrically driven on request
  • Electro-hydraulically driven hood instead of hinged cover
  • Tub insert to elevate bottom height, in order to use the furnace for glass fusing applications (in this product version the tub heating can be switched off
  • Automatic lid opening for faster cooling, programmable via the controller extra function
  • Motor-driven exhaust air flaps in the hood for preselected cooling
  • Powerful cooling system An efficient fan system, mounted to the furnace, cools the dual shell housing from the back. This system shortens cooling times by up to 50 % subject to cycles and charge. Direct contact between the cooling air and charge, hence turbulences in the firing chamber are avoided, protecting the glass from any damage.
  • Interchangeable table system running on rails To shorten process times and optimise operational capacity, two or more furnace tubs, placed alternately under the hood, can be used. An automatic tub changing system is also available on request.
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeight
 °Cwdhin LWDHload kWconnection*in kg
GW 83090012001150600830214019801250363phase820
GW 8409001650850600840259016801250363phase980
GW 1200900200010006001200294018301250403phase1210
GW 1500900210011506001450304019801250703phase1420
GW 1660900230012006001660324020301250803phase1780
GW 2200900230012008002200324020301400903phase2160
GW 80009003700270080080009000475014001803phase2980
*Please see page 61 for more information about supply voltage
 

Top-Hat Furnaces with Wire Heating with Table

Furnace system HG 5208/S with two tables for bending and slumping of glass Top-hat furnace HG 1196/S with customized specifications, hood and table heating; table heating can be switched-off during fusing

HG 2000, standard version

Motor-driven exhaust air flaps as additional equipment

Heating elements in furnace hood

HG 750 - HG 7608/S

Nabertherm markets this range of top-hat furnaces for bending and slumping of large glass parts. The standard furnace is equipped with one table running on rails which can be pulled out for easy charging. As accessory an additional table can be integrated, which is charged while the other table is in the furnace. The furnace is heated from the ceiling and from the table.

  • Tmax 900 °C
  • Heating from lid and table
  • 3-zone temperature control (lid-inner circular element, lid-outer circular element, table) for optimal temperature uniformity
  • Table heating can be switched-off for fusing
  • Heating elements on supporting tubes provide for long service life
  • Table heating elements covered by SiC tiles for level stacking support
  • Hood insulated with high-quality fiber materials
  • Table insulated with multi-layer resistant, lightweight refractory bricks
  • Top-hat to be opened by overhead crane in floor shop
  • Protection guides for easy hood opening and closing
  • Manually-operated exhaust air flap
  • Furnace table on fixed chassis for user-friendly charging height (800 mm)

Additional equipment

  • Tailor-made furnaces in customized dimensions
  • Hood side heating in case of high hood dimensions
  • Interchangeable table system on rails, electrically powered on request
  • Electro-hydraulically driven hood
  • Cooling system
  • Table on wheels for free movement
  • Motor-driven exhaust air flaps
ModelTmaxInner dimensions in mmFloor spaceOuter dimensions in mmConnectedElectricalWeight
 °Cwdhin m2WDH load kWconnection*in kg
HG 750900210012003002,52255018001350353-phase1200
HG 1000900175010005501,75220014501600333-phase1500
HG 1500900210012505502,63255017001600443-phase2000
HG 1800900245018504004,35295023501600453-phase2500
HG 2000900245015005503,68290019501600553-phase2500
HG 2640900300022004006,60350027001450753-phase3400
HG 3000900350022004007,70400028001600753-phase3800
HG 48009005500210040011,55600027001600903-phase4500
HG 5208/S900310021008006,513990259031401103-phase5000
HG 7608/S900380025008009,504690299031401433-phase7000
*Please see page 61 for more information about mains voltage