Chamber high temperature furnaces with fiber insulation up to 1800ˇăC
Chamber high temperature furnaces with fiber insulation up to 1800ˇăC High Temperature Furnace Nabertherm Furnace Laboratory Equipment Facility Malaysia, Selangor, Kuala Lumpur (KL) Supplier, Suppliers, Supply, Supplies | Obsnap Instruments Sdn Bhd
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HT 04/16 - HT 450/18

The high-temperature furnaces HT 04/16 - HT 450/18 have proven reliability over many years in the lab and in the production of technical ceramics. Whether for bioceramics, for sintering CIM components or for other processes up to a maximum temperature of 1800 °C, these furnaces afford the optimal solution for the sintering process.

High-temperature furnaces can either be insulated with fiber material or lightweight refractory bricks. Furnaces with fiber insulation achieve significantly shorter heating up times because of the low thermal mass. An insulation made of lightweight refractory bricks (see HFL models on page 49), on the other hand, has the advantage of better chemical stability.

These furnaces can also be tailored to specific processes by means of a wide range of additional equipment. The addition of a debinding package, for example, allows the use of these models as combi furnaces for debinding and sintering in one process. Thermal or catalytic exhaust cleaning equipment rounds-off the system.

  • Tmax 1600  °C, 1750  °C or 1800  °C
  • Recommended working temperature 1750 °C (for models HT ../18), increased wear and tear must be expected in case of working at higher temperatures
  • Dual shell housing with fan cooling for low shell temperatures
  • Heating from both sides via molybdenum disilicide heating elements
  • 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
  • Two-door design (front/back) for high-temperature furnaces > HT 276/..
  • Labyrinth sealing ensures the least possible temperature loss in the door area
  • Reinforced floor as protection for fiber insulation as standard from models HT 16/16 upwards
  • Exhaust air opening in the furnace roof
  • Heating elements switched via thyristors
  • 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

  • Uncontrolled or controlled cooling system with frequency-controlled cooling fan and motor-driven exhaust air flap
  • Furnace in DB 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
  • Stainless steel exhaust gas hoods
  • Commissioning of the furnace with test firing and temperature uniformity measurement (also with load) for the purpose of process optimization
  • Temperature measurement with thermocouples, types B and type S with automatic pull-out device for precise control results in the low temperature range
  • Protection grid in front of the heating elements to prevent mechanical damages
  • Special heating elements for zirconia sintering provide for longer service life with respect to chemical interaction between charge and heating elements
  • Protective gas connection for purging the furnace 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
  • Lift door
  • Bottom insulation made of durable lightweight refractory bricks for heavy charge weights
  • Motorized exhaust air flap, switchable via the program
  • Safety concepts
  • Exhaust air and exhaust gas piping
  • Thermal or catalytic exhaust cleaning systems
  • FID measurement for process optimization
  • Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control
Model Tmax °C Inner dimensions in mm Volume in l Outer dimensions in mm Connected load kW Electrical connection Weight in kg
W D H W D H
HT 04/16 1600 150 150 150 4 730 490 1400 5.2 three-phase 150
HT 08/16 1600 150 300 150 8 730 640 1400 8.0 three-phase 200
HT 16/16 1600 200 300 260 16 810 700 1500 12.0 three-phase 270
HT 40/16 1600 300 350 350 40 1000 800 1620 12.0 three-phase 380
HT 64/16 1600 400 400 400 64 1030 900 1670 18.0 three-phase 550
HT 128/16 1600 400 800 400 128 1030 1290 1670 26.0 three-phase 750
HT 160/16 1600 500 550 550 160 1250 1050 1900 21.0 three-phase 800
HT 276/16 1600 500 1000 550 276 1300 1600 1900 36.0 three-phase 1100
HT 450/16 1600 500 1150 780 450 1350 1740 2120 64.0 three-phase 1500
                       
HT 04/17 1750 150 150 150 4 730 490 1400 5.2 three-phase 150
HT 08/17 1750 150 300 150 8 730 640 1400 8.0 three-phase 200
HT 16/17 1750 200 300 260 16 810 700 1500 12.0 three-phase 270
HT 40/17 1750 300 350 350 40 1000 800 1620 12.0 three-phase 380
HT 64/17 1750 400 400 400 64 1030 900 1670 18.0 three-phase 550
HT 128/17 1750 400 800 400 128 1030 1290 1670 26.0 three-phase 750
HT 160/17 1750 500 550 550 160 1250 1050 1900 21.0 three-phase 800
HT 276/17 1750 500 1000 550 276 1300 1600 1900 36.0 three-phase 1100
HT 450/17 1750 500 1150 780 450 1350 1740 2120 64.0 three-phase 1500
                       
HT 04/18 1800 150 150 150 4 730 490 1400 5.2 three-phase 150
HT 08/18 1800 150 300 150 8 730 640 1400 8.0 three-phase 200
HT 16/18 1800 200 300 260 16 810 700 1500 12.0 three-phase 270
HT 40/18 1800 300 350 350 40 1000 800 1620 12.0 three-phase 380
HT 64/18 1800 400 400 400 64 1030 900 1670 18.0 three-phase 550
HT 128/18 1800 400 800 400 128 1030 1290 1670 26.0 three-phase 750
HT 160/18 1800 500 550 550 160 1250 1050 1900 21.0 three-phase 800
HT 276/18 1800 500 1000 550 276 1300 1600 1900 42.0 three-phase 1100
HT 450/18 1800 500 1150 780 450 1350 1740 2120 64.0 three-phase 1500

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