Glas

Bogie Hearth Furnaces with Wire Heating up to 1400 °C

Bogie hearth furnace W 1500/H Bogie hearth furnace W 2060/S without bogie heating for preheating fusion molds

Bogie hearth furnace W 2200/14 DB200 with debinding package and catalytical post combustion

Bogie hearth furnace W 8250/S for tempering quartz glass

Bogie hearth furnace W 7500 with bogie, separated in three parts

Bogie hearth furnace in IDB-version with gas box for debinding and sintering under non-flammable protective or reaction gases

When cooling, decorating, glazing or sintering special glass during production, bogie hearth furnaces offer numerous advantages. Due to their very good temperature uniformity, these models are perfectly suited for burning in a separation layer of silicon nitride in crucibles for the solar industry. The bogie can be charged outside the furnace. Several shuttles can be used, so that one shuttle can be charged while the other shuttle is in the furnace.

  • Tmax 1280  °C, 1340  °C or 1400  °C
  • Dual shell housing with rear ventilation, provides for low shell temperatures
  • Swing door hinged on the right side
  • Heating from five sides (four sides and bogie) provides for an optimum temperature uniformity
  • Bogie heating receives power via blade contacts when driven in
  • Heating elements mounted on support tubes provide for free radiation and long service life
  • Bottom heating protected by SiC tiles on the bogie providing level stacking surface
  • Multi-layer insulation consisting of lightweight refractory bricks backed by microporus silica insulation
  • Self-supporting and long-life ceiling construction with bricks laid in arched construction, for models up to 1340  °C
  • Roof made of high-quality fiber material for models with Tmax 1400  °C
  • Freely moveable bogie with rubber wheels up to model W 3300
  • Adjustable air inlet damper
  • Manual exhaust air flap on the furnace roof
  • Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment

  • Fiber insulation also in combination with meander shaped heating for short heating times
  • Bogies with flanged wheels running on rails for easy and precise movement of high loads or complex kiln furniture
  • Electric chain-driven bogie in combination with rail operation for smooth movement of heavy loads
  • 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
  • Kiln furniture
  • Motor-driven exhaust air flap
  • Uncontrolled or controlled cooling system with frequency-controlled cooling fan and motor-driven exhaust air flap
  • Multi-zone control adapted to the particular furnace provides model for optimal the temperature uniformity
  • IDB design with gas supply system and safety technology for debinding in non-flammable protective gases
  • Commissioning of the furnace with test firing and temperature uniformity measurement (also with load) for the purpose of process optimization
  • Thermal or catalytic exhaust cleaning systems
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmHeating
power inElectricalWeight
 °Cwdhin lWDHkW1connection*in kg
W 1000128080016008001000147024101915573-phase3000
W 1500128090019009001500157027102030753-phase3500
W 2200128010002200100022001670301021401103-phase4500
W 3300128010002800120033001670361023551403-phase5300
W 5000128010003600140050001670441025551853-phase7300
W 7500128010005400140075001670621025552353-phase10300
W 100001280100071001400100001670791025553003-phase12500
            
W 1000/H134080016008001000147024101915753-phase3500
W 1500/H1340900190090015001570271020301103-phase4000
W 2200/H134010002200100022001670301021401403-phase5000
W 3300/H134010002800120033001670361023551853-phase6000
W 5000/H134010003600140050001670441025552353-phase8000
W 7500/H134010005400140075001670621025553703-phase11300
W 10000/H1340100071001400100001670791025554403-phase13800
            
W 1000/14140080016008001000147024101915753-phase3300
W 1500/141400900190090015001570271020301103-phase3800
W 2200/14140010002200100022001670301021401403-phase4800
W 3300/14140010002800120033001670361023551853-phase5700
W 5000/14140010003600140050001670441025552353-phase7700
W 7500/14140010005400140075001670621025553703-phase10900
W 10000/141400100071001400100001670791025554403-phase13300
1Depending on furnace design connected load might be higher *Please see page 73 for more information about supply voltage
 

High-Temperature Bogie Hearth Furnaces with SiC Rod Heating up to 1550 °C

High-temperature bogie hearth furnace WHTC 3300/15 High-temperature bogie hearth furnace WHTC 4000/15 with bogie on rails and fan cooling

SiC rod elements on both sides of the bogie hearth furnace

Design with two doors and two bogies, on rails, allows for rapid bogie changes

Bogie hearth furnaces equipped with SiC rod heating can be used for the production of technical ceramics, especially for sintering at working temperatures up to 1550 °C. The bogie hearth furnaces from WHTC product line with especially robust design can hold heavy charges including kiln furniture. The furnace chamber is equipped with a high-quality insulation made of high-temperature fiber blocks. The bogie insulation is structured in multi-layer lightweight refractory bricks on the heating chamber side.

The furnace is heated along both sides by vertically installed SiC heating rods. This heating technology permits processes requiring working temperatures above 1350 °C which cannot achieved with wire heating elements. The SiC rods are controlled by thyristor controller which counteract the aging of the heating elements by means of automatic power compensation.

  • Tmax 1550  °C
  • Dual shell housing with rear ventilation, provides for low shell temperatures
  • Swing door hinged on the right side
  • Heating from both sides via vertically mounted SiC rods
  • Thyristor controllers with automatic output compensation counteract the aging of SiC rods
  • Multi-layer insulation with high-quality fiber modules on the heating chamber side
  • Bogie for heavy loads lined with lightweight refractory bricks
  • Bogie hand driven on rubber tires
  • Motor-driven exhaust air flap on the furnace roof
  • Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment

  • Exhaust air and exhaust gas piping
  • Thermal or catalytic exhaust cleaning systems
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control
 

Chamber Furnaces with Wire Heating up to 1400 °C

Chamber furnace N 1000 Chamber furnace N 500/GS

Chamber furnace N 4550/S

Chamber furnace with fiber insulation for shorter cycle times

Charging trolley for chamber furnace N 2200

These high-quality chamber furnaces for firing, sintering and tempering have qualified themselves with the reliability for many years in daily use. Thanks to their five-side heating, the furnaces provide for a very good temperature uniformity. A wide range of additional equipment perfectly adapt these chamber furnaces to the process requirements.

  • Tmax 900  °C, 1300  °C, 1340  °C or 1400  °C
  • Dual shell housing, galvanized steel sheets
  • Five-side heating provide for good temperature uniformity
  • Heating elements on support tubes provide for free heat radiation and long service life
  • Controller mounted on furnace door and removable for comfortable operation
  • Air outlet in the ceiling, motor driven exhaust air flap for models from N 440
  • Smoothly adjustable and easy-to-operate air inlet flap or sliding damper
  • Self-supporting and long-life ceiling construction, with bricks laid in arched construction
  • Special door lock for easy handling
  • Multi-layer insulation consisting of lightweight refractory bricks and backed by special fiber insulation
  • Models up to N 300/.. with removable stand
  • Protection of bottom heating and flat stacking surface provided by embedded SiC plate in the floor
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment

  • Motor driven exhaust air flap for models N 100 - N 300/..
  • Fan system for faster cooling with manual or automatic control
  • Protective gas connection for purging the furnace with non-flammable protective or reaction gases
  • Manual or automatic gas supply systems
  • Fiber insulation for shorter cycle times, especially cooling periods
  • Multi-zone control for optimal temperature uniformity in the work space
  • Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmHeating
power inElectricalWeight
 °Cwdhin lWDHkW1connection*in kg
N 100/G9004005304601007201130144073-phase275
N 150/G9004505305901507701130157093-phase320
N 200/G90050053072020079011301760113-phase375
N 200/GS900400100050020079517101605163-phase300
N 250/GS900500100050025089517101605183-phase370
N 300/G90055070078030087013001760153-phase450
N 360/GS900600100060036099517101705203-phase500
N 440/G9006007501000450100014001830203-phase780
N 500/GS900600140060050099521101705223-phase1000
N 660/G90060011001000660100017501830263-phase950
N 1000/G900800100012501000139017602000403-phase1680
N 1500/G900900120014001500149019602150573-phase2300
N 2200/G9001000140016002200159021602350753-phase2800
            
N 10013004005304601007201130144093-phase275
N 150130045053059015077011301570113-phase320
N 200130047053078020079011301760153-phase375
N 200/S1300400100050020079517101605183-phase300
N 250/S1300500100050025089517101605203-phase370
N 300130055070078030087013001760203-phase450
N 360/S1300600100060036099517101705223-phase500
N 44013006007501000450100014001830303-phase780
N 500/S1300600140060050099521101705243-phase370
N 660130060011001000660100017501830403-phase950
N 10001300800100012501000139017602000573-phase1800
N 15001300900120014001500149019602150753-phase2500
N 2200130010001400160022001590216023501103-phase3100
            
N 100/H134040053046010076011501440113-phase325
N 150/H134043053062015079011501600153-phase380
N 200/H134050053072020086011501700203-phase430
N 300/H134055070078030091013201760273-phase550
N 440/H13406007501000450100014001830403-phase880
N 660/H134060011001000660100017501830523-phase1080
N 1000/H1340800100012501000139017602000753-phase2320
N 1500/H13409001200140015001490196021501103-phase2700
N 2200/H134010001400160022001590216023501403-phase3600
            
N 100/14140040053046010076011501440153-phase325
N 150/14140043053062015079011501600203-phase380
N 200/14140050053072020086011501700223-phase430
N 300/14140055070078030091013201760303-phase550
N 440/1414006007501000450100014001820403-phase1320
N 660/14140060011001000660100017501820573-phase1560
N 1000/141400800100012501000139017602000753-phase2500
N 1500/1414009001200140015001490196021501103-phase3000
N 2200/14140010001400160022001590216023501403-phase3900
1Depending on furnace design connected load might be higher *Please see page 73 for more information about supply voltage
 

Chamber Furnaces with Brick Insulation or Fiber Insulation

Chamber furnace LH 15/12 with brick insulation Chamber furnace LH 30/14

Chamber furnace LH 60/13 DB50 for debinding in air

The chamber furnaces LH 15/12 - LF 120/14 have been trusted for many years as professional chamber furnaces for the laboratory. These furnaces are available with either a robust insulation of light refractory bricks (LH models) or with a combination insulation of refractory bricks in the corners and low heat storage, quickly cooling fiber material (LF models). With a wide variety of optional equipment, these chamber furnaces can be optimally adapted to your processes.

  • Tmax 1200  °C, 1300  °C, or 1400  °C
  • Dual shell housing with rear ventilation, provides for low shell temperatures
  • Five-sided heating for very good temperature uniformity
  • Heating elements on support tubes ensure free heat radiation and a long service life
  • Controller mounted on furnace door and removable for comfortable operation
  • Protection of bottom heating and flat stacking surface provided by embedded SiC plate in the floor
  • LH models: multi-layered, fiber-free insulation of light refractory bricks and special backup insulation
  • LF models: high-quality non-classified fiber insulation with corner bricks for shorter heating and cooling times
  • Door with brick-on-brick seal, hand fitted
  • Short heating times due to high installed power
  • Motor driven exhaust air flap
  • Self-supporting arch for high stability and greatest possible protection against dust
  • Quick lock on door
  • Freely adjustable air slide intake in furnace floor
  • Stand included
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment

  • Parallel swinging door, pivots away from operator, for opening when hot
  • Lift door with electro-mechanic linear drive
  • Separate wall-mounting or floor standing cabinet for switchgear
  • Cooling fan for shorter cycle times
  • Protective gas connection for purging the furnace with non-flammable protective or reaction gases
  • Manual or automatic gas supply system
  • Scale to measure weight reduction during annealing
  • Debinding packages with safety concept up to 60 liters
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmHeating power inElectricalWeight
 °Cwdhin lWDHkW2connection*in kg
LH 15/1212002502502501568086012305.03-phase1170
LH 30/1212003203203203071093012907.03-phase1200
LH 60/12120040040040060790108013708.03-phase300
LH 120/1212005005005001208901180147012.03-phase410
LH 216/1212006006006002169901280159020.03-phase450
            
LH 15/1313002502502501568086012307.03-phase1170
LH 30/1313003203203203071093012908.03-phase1200
LH 60/131300400400400607901080137011.03-phase300
LH 120/1313005005005001208901180147015.03-phase410
LH 216/1313006006006002169901280159022.03-phase460
            
LH 15/1414002502502501568086012308.03-phase1170
LH 30/14140032032032030710930129010.03-phase1200
LH 60/141400400400400607901080137012.03-phase300
LH 120/1414005005005001208901180147018.03-phase410
LH 216/1414006006006002169901280159026.03-phase470
            
LF 15/1313002502502501568086012307.03-phase1150
LF 30/1313003203203203071093012908.03-phase1180
LF 60/131300400400400607901080137011.03-phase270
LF 120/1313005005005001208901180147015.03-phase370
            
LF 15/1414002502502501568086012308.03-phase1150
LF 30/14140032032032030710930129010.03-phase1180
LF 60/141400400400400607901080137012.03-phase270
LF 120/1414005005005001208901180147018.03-phase370
1Heating only between two phases *Please see page 73 for more information about supply voltage
2Depending on furnace design connected load might be higher
 

Top Hat Furnaces or Bottom Loading Furnaces with Wire Heating up to 1400 °C

Bottom loading furnace H 1000/LB Top hat furnace H 1600/14 DB 200

Top hat furnace H 240/S. Table accessible from four sides for welding quartz glass constructions by vertical and horizontal moveable top hat

Top hat furnace H 500 DB200 with catalytic post combustion, automatic table changing system and security scanners to protect the danger zone

Top hat furnace system H 245/LTS with cooling station and table changing system

Kiln furniture for small ceramics components

These top hat furnaces or bottom loading furnaces were specially developed for cooling complex structures or when the process requires the treatment of warm glass, e.g., the welding process in glass apparatus manufacturing. The wide-opening electro-hydraulically driven top hat allows furnace opening even at high temperatures and provides easy access from 3 sides. Depending on process conditions, a top hat or bottom loading version is advisable. The system can be expanded to include one or more changeable tables, either manually or motor driven. Further additional equipment like a multi-zone control to optimize the temperature uniformity or controlled cooling systems for shorter processes provide for customized solution with respect to the process requirements.

  • Tmax 1280  °C
  • Dual shell housing with rear ventilation for low shell temperatures
  • Top hat furnaces: electrohydraulically driven top hat with fixed table
  • Bottom loading furnaces: driven table and fixed top hat
  • Five-sided heating from all four sides and from the table provides for a temperature uniformity up to +/- 10 °C according to DIN 17052-1
  • Heating elements mounted on support tubes provide for free radiation and long service life of the heating wire
  • Bottom heating protected by SiC tiles which provide for a level stacking surface
  • Multi-layer insulation consisting of lightweight refractory bricks backed by special insulation
  • Long-life ceiling design with fiber insulation
  • Manual exhaust air flap on the furnace roof
  • Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment

  • Tmax to 1400  °C
  • Motor driven exhaust air flap, switchable via the program
  • Uncontrolled or controlled cooling system with frequency-controlled cooling fan and motor-driven exhaust air flap
  • Protective gas connection for purging the furnace with non-flammable protective or reaction gases
  • Manual or automatic gas supply systems
  • Multi-zone control adapted to the particular furnace provides model for optimal the temperature uniformity
  • Commissioning of the furnace with test firing and temperature uniformity measurement (also with load) for the purpose of process optimization
  • Additional tables, table changing system, also motor-driven
  • Exhaust air and exhaust gas piping
  • Thermal or catalytic exhaust cleaning systems
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmHeating
power inElectricalWeight
 °Cwdhin lWDHkW1connection*in kg
H 125/LB, LT1280800400400125155015002200123-phase1250
H 250/LB, LT12801000500500250153017002300183-phase1400
H 500/LB, LT12801200600600500202018002500363-phase1800
H 1000/LB, LT128016008008001000220020002900483-phase2800
H 1350/LB, LT128028006207801360375020503050753-phase3500
H 3000/LB, LT128030001000100030004000210032001403-phase6200
1Depending on furnace design connected load might be higher *Please see page 73 for more information about supply voltage
 

Top Hat Furnaces with SiC Rod Heating

Top hat furnace HC 1275 with moveable table Top hat furnace HC 1500

Manually or electrically driven table as option

Heating from 4 sides with SiC rods

For temperatures beyond 1350 °C we recommend top hat furnaces with SiC rod heating. The top hat construction with 4-sides heating provides for exceptional temperature uniformity.

  • Tmax of 1400 °C, 1450 °C or 1500 °C
  • SiC rod heating on 4 sides of the furnace top hat for short cycle times and high temperature uniformity
  • High electrical connected load for short cycle times
  • Top hat insulation made from fiber materials provides for short cycle time and low energy consumption
  • Table built from lightweight refractory bricks allows for heavy loads and level stacking surface
  • Electro-hydraulic driven top hat for vibration-free opening and closing of furnace top hat
  • Thyristor powered heating
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmHeating power ElectricalWeight
 °Cwdhin lWDHin kW1connection*in kg
HC 6651400110055011006652350205040001863-phase3000
HC 127514008501000150012752100250044001803-phase4100
HC 14401400840240084016902100390035604003-phase4700
HC 1500140010001000150015002250250044001903-phase5300
            
HC 128014508001600100012802050310039001513-phase4200
            
HC 700150080080011007002050230040001003-phase3100
HC 140015008001600110014002050310040001513-phase4500
1Depending on furnace design connected load might be higher *Please see page 73 for more information about supply voltage
 

Pit-Type and Top-Loading Furnaces with or without Air Circulation Electrically Heated or Gas-Fired

Top-loading furnace S 5120/GS1, furnace chamber divided in two sections, split cover Top-loading furnace SAT 1512/85S

Furnace chamber S 5120/GS with receptacle for an insulating plate in order to devide the furnace chamber

Charge supports for long tubes in a top-loading forced convection furnace SAL 750/08

Pit-type furnace S 11988/S with rolling lid

Our top-loading furnaces are perfectly suited for firing, sintering or tempering of long, heavy products. The furnace is usually charged with a factory crane. Due to their high-performance air circulation system, the furnaces provide for excellent temperature uniformity up to a maximum temperature of 850 °C. The top-loading furnaces for the temperature range up to 1280 °C provide for very good temperature uniformity due to their five-side heating. Alternatively, these furnaces can also be provided with gas-fired. Customized dimensions are designed and produced to accomodate the size and weight of the components to be treated.

  • Tmax 260  °C, 450  °C, 600  °C or 850  °C for furnaces with air circulation
  • Tmax 900  °C or 1280  °C for furnaces with radiation heating
  • Electrically heated or gas-fired
  • Heating from both long sides for furnaces with air circulation
  • Heating from all four sides and the floor with SiC plates in the floor as level stacking support for models to 900  °C or 1280  °C
  • Hight-quality insulation, adapted to the specific maximum temperature
  • Electrohydraulic opening system of the lid with two-hand operation
  • Closable air supply vents in the lower area of the furnace chamber
  • Closable exhaust air vents in the lid
  • Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Defined application within the constraints of the operating instructions

Additional equipment

  • Motor driven exhaust air flaps for faster cooling
  • Controlled fan cooling with motor driven exhaust air flaps
  • Multi-zone control of the heating provides for optimum temperature uniformity
  • Furnace chamber can be devided in length for short workparts, partitions can be controlled separately
  • Designed for Tmax 950  °C, fan blade driven indirectly via a belt to protect the air recirculation motor against over-heating
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control