İleri düzey malzemeler

Fast-Firing Furnaces

LS 25/13

Firing curves LS 12/13 and LS 25/13

LS 12/13 and LS 25/13

These fast-firing furnaces are ideal for simulation of typical fast-firing processes up to a maximum firing temperature of 1300 °C. The combination of high performance, low thermal mass and powerful cooling fans provides for cycle times from cold to cold up to 35 minutes with an opening temperature of approx. 300 °C.

  • Tmax 1300  °C
  • Very compact design
  • Ceramic grid tubes as charge support
  • Floor and lid heating
  • Two-zone control, bottom and lid
  • Integrated cooling fans, programmable to speed up charge cooling including housing cooling
  • Programmable lid opening of approximately 20 mm for faster cooling without activating the fan
  • Thermocouple PtRh-Pt, type S for top and bottom zone
  • Castors for easy furnace moving
  • Defined application within the constraints of the operating instructions
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmHeatingElectricalWeight
 °Cwdhin lWDHpower in kW1connection*in kg
LS 12/1313003503504012600800985153-phase130
LS 25/131300500500100257509851150223-phase160
1Depending on furnace design connected load might be higher *Please see page 77 for more information about supply voltage
 

Gradient or Lab Strand Annealing Furnaces

GR 1300/13S

Furnace chamber of the GR 1300/13 with second door as additional equipment

GR 1300/13

The furnace chamber of the gradient furnace GR 1300/13 is divided in six control zones of equal length. The temperature in each of the six heating zones is separately controlled. The gradient furnace is usually charged from the side through the parallel swivel door. A maximum temperature gradient of 400 °C can then be stabilized over the heated length of 1300 mm. On request the furnace also is designed as a lab strand annealing furnace with a second door on the opposite side. If the included fiber separator are used charging is carried-out from the top.

  • Tmax 1300  °C
  • Heated length: 1300 mm
  • Heating elements on support tubes providing for free heat radiation in the kiln chamber
  • Charging from the top or through the right side door
  • Gas damper suspension of the lid
  • 6-zone control
  • Separate control of heating zones (each 160 mm long)
  • Temperature gradient of 400  °C over the entire length of the kiln chamber, each zone can individually be controlled
  • Fiber separators dividing the chamber in six equally sized chambers
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm Controller: Recording of process data with USB-flash drive

Additional equipment

  • Up to ten control zones
  • Second parallel swivel door for use as lab strand annealing furnace
  • Vertical instead of horizontal lab strand annealing furnace
  • Process control and documentation via VCD software package for monitoring, documentation and control
ModelTmaxInner dimensions in mmOuter dimensions in mmHeatingElectricalWeight
 °CwdhWDHpower in kW1connection*in kg
GR 1300/13130013001006016607401345183-phase300
1Depending on furnace design connected load might be higher *Please see page 77 for more information about supply voltage
 

Chamber Furnaces with Brick Insulation or Fiber Insulation

Chamber furnace LH 15/12 with brick insulation LH 120/12SW with scale to measure weight reduction during annealing

Cooling fan in combination with motor-driven exhaust air flap to reduce cooling time

LH 120/12S process box made of quartz glass

LH 60/13 DB50 for debinding in air

LH 60/12 with manual lift door and gas supply box for non-flammable protective or reactive gases

LH 15/12 - LF 120/14

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
  • Side vent with bypass connection for exhaust pipe
  • 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

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
  • Motor driven exhaust air flap
  • Cooling fan for shorter cycle times
  • Protective gas connection for purging the furnace with non-flammable protective or reaction gases
  • Process box made of quartz glass for very clean atmosphere, quartz glass covered door with lid function
  • 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 15/1212002502502501568086012155.03-phase1170
LH 30/1212003203203203070093012857.03-phase1200
LH 60/12120040040040060780107013658.03-phase300
LH 120/1212005005005001208801170146512.03-phase410
LH 216/1212006006006002169801270156520.03-phase460
            
LH 15/1313002502502501568086012157.03-phase1170
LH 30/1313003203203203070093012858.03-phase1200
LH 60/131300400400400607801070136511.03-phase300
LH 120/1313005005005001208801170146515.03-phase410
LH 216/1313006006006002169801270156522.03-phase460
            
LH 15/1414002502502501568086012158.03-phase1170
LH 30/14140032032032030700930128510.03-phase1200
LH 60/141400400400400607801070136512.03-phase300
LH 120/1414005005005001208801170146518.03-phase410
LH 216/1414006006006002169801270156526.03-phase460
            
LF 15/1313002502502501568086012157.03-phase1170
LF 30/1313003203203203070093012858.03-phase1200
LF 60/131300400400400607801070136511.03-phase300
LF 120/1313005005005001208801170146515.03-phase410
            
LF 15/1414002502502501568086012158.03-phase1170
LF 30/14140032032032030700930128510.03-phase1200
LF 60/141400400400400607801070136512.03-phase300
LF 120/1414005005005001208801170146518.03-phase410
1Heating only between two phases *Please see page 77 for more information about supply voltage
2Depending on furnace design connected load might be higher
 

High-Temperature Furnaces Lift-Bottom up to 1700 °C

LHT 16/17 LB LHT 02/17 LB with a set of saggars

Electrically driven lift-bottom

Saggar

LHT/LB

The electrically driven lift-bottom considerably allows for proper charging of the high-temperature furnaces LHT/LB. The heating all around the cylindrical furnace chamber provides for an opitimal temperature uniformity. For model LHT 02/17 LB the charge can be placed in charge saggars made of technical ceramics. Up to three charge saggars can be stacked on top of each other resulting in a high productivity. Due to its volume model LHT 16/17 LB can also be used for applications in production.

  • Tmax 1700  °C
  • High-quality molybdenum disilicide heating elements
  • Furnace chamber lined with first-class, durable fiber materials
  • Outstanding temperature uniformity due to all-round furnace chamber heating
  • Furnace chamber with a volume of 2 or 16 liters, table with large footprint
  • Spacers to lift-up the saggars already installed in the table
  • Precise, electric spindle drive with push button operation
  • Housing made of sheets of textured stainless steel
  • Exhaust air vent in the roof
  • Type S thermocouple
  • Switchgear with thyristor
  • Defined application within the constraints of the operating instructions
  • NTLog Basic for Nabertherm Controller: Recording of process data with USB-flash drive

Additional equipment

  • 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
  • Saggar for charging of up to three layers
  • Protective gas connection for purging the furnace with non-flammable protective or reaction gases
  • Manual or automatic gas supply system
  • Adjustable air inlet through the floor
  • Process control and documentation via VCD software package for monitoring, documentation and control
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmHeating
power inElectricalWeight
 °CØhin lWDHkW1connection*in kg
LHT 02/17 LB1700Ø 12013025406107402.91-phase85
LHT 16/17 LB1700Ø 260260166501250198012.03-phase410
1Depending on furnace design connected load might be higher *Please see page 77 for more information about supply voltage
 

High-Temperature Furnaces with Scale for Determination of Combustion Loss and Thermogravimetric Analyses (TGA)

LHT 04/16 SW with scale for measuring weight reduction during annealing and with gas supply system

Software for documentation of the temperature curve and combustion loss using a PC

LHT 04/16 SW and LHT 04/17 SW

These high-temperature furnaces were specially developed to determine combustion loss during annealing and for thermogravimetric analysis (TGA) in the lab. The complete system consists of the high-temperature furnace for 1600 °C or 1750 °C, a table frame, precision scale with feedthroughs into the furnace and powerful software for recording both the temperature curve and the weight loss over time.

  • 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 inElectricalWeightMinutes
 °Cwdhin lWDHkW3connection*in kgto Tmax2
LHT 04/16 SW160015015015046553708905.03-phase18525
LHT 04/17 SW175015015015046553708905.03-phase18540
1Heating only between two phases *Please see page 77 for more information about supply voltage
2If connected at 230 V 1/N/PE rsp. 400 V 3/N/PE3Depending on furnace design connected load might be higher