Labo

High-Temperature Furnaces with SiC Rod Heating up to 1600 °C

HTC 08/15 HTCT 01/16

Furnace chamber with high-quality fiber materials and SiC heating rods on both sides of the furnace

Saggars with top lid

Over-temperature limiter

HTCT 03/14 - HTCT 08/16

These powerful laboratory muffle furnaces are available for temperatures up to 1400 °C, 1500 °C, 1550 °C or 1600 °C. The durability of the SiC rods in periodic use, in combination with their high heating speed, make these high-temperature furnaces to all-rounders in the laboratory. Heating times of 40 minutes to 1400 °C can be achieved, depending on the furnace model and the conditions of use.

  • Tmax 1400 °C, 1500 °C, 1550  °C or 1600 °C
  • Working temperature 1500 °C (for high-temperature furnaces HTC ../16), increased wear and tear must be expected in case of working at higher temperatures
  • High-quality non-classified fiber material, selected for the working temperature
  • Housing made of sheets of textured stainless steel
  • Dual shell housing for low external temperatures and high stability
  • Optional flap door (HTC) which can be used as work platform or lift door (HTCT) with hot surface facing away from the operator (HTCT 01/16 only with lift door)
  • Switching system with solid-state-relays, power tuned to the SiC rods
  • Easy replacement of heating rods
  • Defined application within the constraints of the operating instructions

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
  • Square saggar for charging of up to three layers
  • Lid for top saggar
  • Manual or automatic gas supply system
  • Adjustable air intake opening in the furnace door, exhaust air opening in the roof
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeightMinutes
 °Cwdhin lWDH2load kWconnection*in kgto Tmax3
HTC, HTCT 03/1414001202101203.04005355309.03-phase13040
HTC, HTCT 08/1414001702901708.045062057013.03-phase4040
             
HTC, HTCT 03/1515001202101203.04005355309.03-phase13050
HTC, HTCT 08/1515001702901708.045062057013.03-phase4050
             
HTCT 01/1615501101201201.53404404604.51-phase1840
HTC, HTCT 03/1616001202101203.04005355309.03-phase13060
HTC, HTCT 08/1616001702901708.045062057013.03-phase4060
1Heating only between two phases *Please see page 60 for more information about supply voltage
2Plus maximum 270 mm for models HTCT when open3If connected at 230 V 1/N/PE rsp. 400 V 3/N/PE
 

High-Temperature Furnaces with MoSi[sub]2 [/sub]Heating Elements up to 1800 °C

LHT 01/17 D LHT 03/17 D

Saggars with top lid

Over-temperature limiter

LHT 01/17 D, LHT 03/17 D, LHT 02/16 - LHT 08/18

Designed as tabletop models, these compact high-temperature furnaces have a variety of advantages. The first-class workmanship using high-quality materials, combined with ease of operation, make these furnaces all-rounders in research and the laboratory. These high-temperature furnaces are also perfectly suited for the sintering of technical ceramics, such as zirconium oxide dental bridges.

  • Tmax 1600 °C, 1750 °C, or 1800 °C
  • High-quality molybdenum disilicide heating elements
  • Furnace chamber lined with first-class, durable fiber material
  • Housing made of sheets of textured stainless steel
  • Dual shell housing with additional fan cooling for low surface temperature
  • Compact design with lift door, opening upwards
  • Adjustable air inlet
  • Exhaust air opening in the roof
  • Type B thermocouple
  • Switching system with phase-angle firing thyristors (SCRs)
  • Defined application within the constraints of the operating instructions

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
  • Square saggar for charging of up to three layers
  • Process control and documentation with Controltherm MV software package
  • Protective gas connection to purge with non-flammable protective or reaction gases
  • Manual or automatic gas supply system
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeightMinutes
 °Cwdhin lWDH3load kWconnection*in kgto Tmax2
LHT 02/161600901501502470700750+3503.01-phase7530
LHT 04/1616001501501504470700750+3505.23-phase18525
LHT 08/1616001503001508470850750+3508.03-phase110025
             
LHT 01/17 D16501101201201382425525+1953.621-phase2810
LHT 03/17 D16501351552002470620770+2603.01-phase7560
             
LHT 02/171750901501502470700750+3503.01-phase7560
LHT 04/1717501501501504470700750+3505.23-phase18540
LHT 08/1717501503001508470850750+3508.03-phase110040
             
LHT 02/181800901501502470700750+3503.61-phase7575
LHT 04/1818001501501504470700750+3505.23-phase18560
LHT 08/1818001503001508470850750+3509.03-phase110060
1Heating only between two phases *Please see page 60 for more information about supply voltage
2If connected at 230 V 1/N/PE rsp. 400 V 3/N/PE 3Including opened lift door
 

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 floor space
  • 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

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 to purge with non-flammable protective or reaction gases
  • Manual or automatic gas supply system
  • Adjustable air inlet through the floor
  • Process control and documentation with Controltherm MV software package
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeight
 °CØhin lWDHload kWconnection*in kg
LHT 02/17 LB1700Ø 12013025406107403.31-phase85
LHT 16/17 LB1700Ø 260260166501250198012.03-phase410
*Please see page 60 for more information about supply voltage
 

High-Temperature Furnaces with Scale for Determination of Combustion Loss and Thermogravimetric Analysis (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
  • Technical description of the furnaces: see models LHT 04/16 and LHT 04/17
  • Description of the weighing system: see models L 9/... SW
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeightMinutes
 °Cwdhin lWDHload kWconnection*in kgto Tmax2
LHT 04/16 SW160015015015046553708905.03-phase18525
LHT 04/17 SW175015015015046553708905.03-phase18540
1Heating only between two phases *Please see page 60 for more information about supply voltage
2If connected at 230 V 1/N/PE rsp. 400 V 3/N/PE
 

High-Temperature Furnaces with Fiber Insulation up to 1800 °C

HT 16/18 with gas supply system HT 160/17 with gas supply system

Reinforced floor as protection for bottom insulation HT 16/16

Inner process hood with gas injection through the furnace bottom protects the furnace chamber against contamination and/or prevents chemical interaction between the charge and heating elements

HT 276/17 with pneumatically driven and parallel lift door

Two-door design for models > HT 276/..

HT 04/16 - HT 450/18

Due to their solid construction and compact stand-alone design, these high-temperature furnaces are perfect for processes in the laboratory where the highest precision is needed. Oustanding temperature uniformity and practical details set unbeatable quality benchmarks. For configuration for your processes, these furnaces can be extended with extras from our extensive option list.

  • Tmax 1600 °C, 1750 °C, or 1800 °C
  • Working temperature 1750 °C (for models HT ../18), increased wear and tear must be expected in case of working at higher temperatures
  • Furnace sizes from 4 to 450 liters
  • High-quality molybdenum disilicide (MoSi2) heating elements
  • Parallel swivel door, chain-guided, enabling safe opening and closing without damage to the fiber insulation in the collar area, protection of user from radiation from the furnace
  • Two-door design for high-temperature furnaces> HT 276/..
  • Door labyrinth sealing provides for optimum energy efficiency and temperature uniformity
  • Door area armored with stainless steel to avoid burn damages
  • Reinforced floor as protection for bottom insulation as standard from models HT 16/16 upwards
  • Over-temperature limiter with manual reset for product and furnace protection
  • Furnace chamber lined with first-class, durable fiber material
  • Special ceiling construction with high durability
  • Thermocouple, PtRh-Pt, Type B or Type S
  • Vapor vent in the furnace roof
  • Defined application within the constraints of the operating instructions

Additional equipment

  • Uncontrolled or controlled cooling system with frequency-controlled cooling fan and motor-driven exhaust air flap
  • Furnace in HDB design featuring fresh air preheating, exhaust gas ventilation and an extensive safety package for debinding and sintering in one process, i. e. without transfering the material from the debinding furnace to the sintering furnace.
  • Motor-driven exhaust air flap control
  • Stainless steel exhaust gas hoods
  • Catalytic or thermal afterburners
  • Kiln furniture
  • Lift door
  • Special heating elements for zirconia sintering provide for longer service life with respect to chemical interaction between charge and heating elements
  • Protective gas connection to purge with non-flammable protective or reaction gases
  • Manual or automatic gas supply system
  • Inner process box to improve the gas tightness and to protect the furnace chamber against contamination
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeight
 °Cwdhin lWDHload kWconnection*in kg
HT 04/161600150150150461047014005.23-phase1150
HT 08/161600150300150873064014008.03-phase1200
HT 16/16160020030026016810700150012.03-phase1270
HT 40/161600300350350401000800162012.03-phase380
HT 64/161600400400400641130900167018.03-phase550
HT 128/16160040080040012811301290167026.03-phase750
HT 160/16160050055055016012451040190021.03-phase800
HT 276/161600500100055027611401470190036.03-phase1100
HT 450/161600500115078045012001620206064.03-phase1500
            
HT 04/171750150150150461047014005.23-phase1150
HT 08/171750150300150873064014008.03-phase1200
HT 16/17175020030026016810700150012.03-phase1270
HT 40/171750300350350401000800162012.03-phase380
HT 64/171750400400400641130900167018.03-phase550
HT 128/17175040080040012813001290167026.03-phase750
HT 160/17175050055055016012451040190021.03-phase800
HT 276/171750500100055027611401470190036.03-phase1100
HT 450/171750500115078045012001620206064.03-phase1500
            
HT 04/181800150150150461047014005.23-phase1150
HT 08/181800150300150873064014009.03-phase1200
HT 16/18180020030026016810700150012.03-phase1270
HT 40/181800300350350401000800162012.03-phase380
HT 64/181800400400400641130900167018.03-phase550
HT 128/18180040080040012811301290167026.03-phase750
HT 160/18180050055055016012601070190021.03-phase800
HT 276/181800500100055027611401470190036.03-phase1100
HT 450/181800500115078045012001620206064.03-phase1500
1Heating only between two phases *Please see page 60 for more information about supply voltage
 

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

HTC 40/16 HTC 16/16

Vertically mounted SiC rods

Exhaust air flap and charge thermocouple including a stand as additional equipment

HTC 16/16 - HTC 450/16

The high-temperature furnaces HTC 16/16 - HTC 450/16 are heated by vertically hung SiC rods, which makes them especially suitable for sintering processes up to a maximum operating temperature of 1550 °C. For some processes, e.g. for sintering zirconium oxide, the absence of interactivity between the charge and the SiC rods, these models are more suitable than the alternatives heated with molybdenum disilicide elements. The basic construction of these furnaces make them comparable with the already familiar models in the HT product line and they can be upgraded with the same additional equipment.

  • Tmax 1550 °C
  • Dual shell housing with fan cooling for low shell temperatures
  • Heating from both sides via vertically mounted SiC rods
  • High-quality fiber insulation backed by special insulation
  • Side insulation constructed with tongue and groove blocks provides for low heat loss to the outside
  • Long-life roof insulation with special suspension
  • Chain-guided parallel swivel door for defined opening and closing of the door without destroying the insulation
  • Two-door design for models > HT 276/..
  • Labyrinth sealing ensures the least possible temperature loss in the door area
  • Specially reinforced furnace floor for accommodating high charge weights for model HTC 16 and above
  • Exhaust air opening in the furnace roof
  • Heating elements switched via SCR‘s
  • 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
  • For additional equipment see models HT 04/16 - HT 450/18
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeight
 °Cwdhin lWDHload kWconnection*in kg
HTC 16/16 155020030026016810700150012,03-phase1270
HTC 40/161550300350350401000800162012,03-phase380
HTC 64/161550400400400641130900167018,03-phase550
HTC 128/16155040080040012811301290167026,03-phase750
HTC 160/16155050055055016012451040190021,03-phase800
HTC 276/161550500100055027611401470190036,03-phase1100
HTC 450/161550500115078045012001620206064,03-phase1500
1Heating only between two phases *Please see page 60 for more information about supply voltage
 

High-Temperature Furnaces with Refractory Brick Insulation up to 1700 °C

HFL 160/17 HFL 16/17

Protective screen in front of heating elements for protection against mechanical damage

Gas supply system for non-flammable protective or reaction gases

HFL 16/16 - HFL 160/17

The high-temperature furnaces HFL 16/16 HFL 160/17 are characterized by their lining with robust light refractory bricks. This version is recommended for processes producing aggressive gases or acids, such as under glass melting.

  • Tmax 1600 °C or 1700 °C
  • High-quality molybdenum disilicide (MoSi2) heating elements
  • Insulation with light refractory bricks and special backup insulation
  • Type B thermocouple
  • Furnace sizes of 16 to 160 liters
  • For the release of vapours, a 30 mm large exhaust hole is integrated into the roof of the furnace
  • Over-temperature limiter with manual reset for protection of material
  • Defined application within the constraints of the operating instructions

Additional equipment

  • Exhaust air flap, manually or motor-driven for improved venting of the furnace chamber
  • Fan for better ventilation of combustion chamber and for fast cooling of the furnace
  • Protective gas connection to purge with non-flammable protective or reaction gases
  • Manual or automatic gas supply system
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeight
 °Cwdhin lWDHload kWconnection*in kg
HFL 16/161600200300260167708301550123-phase1500
HFL 40/161600300350350408808801710123-phase660
HFL 64/161600400400400649809301830183-phase880
HFL 160/161600500550550160109010802030213-phase1140
            
HFL 16/171700200300260167708301550123-phase1530
HFL 40/171700300350350408808801710123-phase690
HFL 64/171700400400400649809301830183-phase920
HFL 160/171700500550550160109010802030213-phase1190
1Heating only between two phases *Please see page 60 for more information about supply voltage