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.

Standard 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 (front/back) for high-temperature furnaces > HTC 276/..
· Labyrinth sealing ensures the least possible temperature loss in the door area
· Reinforced floor as protection for bottom insulation
· Vapor vent in the furnace roof with motorized exhaust air flaps, controlled via the
extra function of the controller
· Heating elements switched via SCR‘s
· Over-temperature limiter with adjustable cutout temperature as temperature
limiter to protect the oven and load

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.

Standard Equipment
· Tmax 1600 °C or 1750 °C
· High-quality molybdenum disilicide heating elements
· Dual shell housing made of textured stainless steel sheets with additional fan cooling
for low surface temperature
· Adjustable air inlet
· Exhaust air opening in the roof
· Type B thermocouple
· Delivery includes base, ceramic plunger with base plate in the furnace lining,
precision scale and software package
· 4 scales available for different maximum weights and scaling ranges
· Process control and documentation for temperature and combustion loss via
VCD software package for monitoring, documentation and control

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 very high quality benchmarks. For configuration for your
processes, these furnaces can be extended with extras from our extensive option list.

Standard Equipment
· 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 from HT 276/..
· Labyrinth sealing ensures the least possible temperature loss in the door area
· Reinforced floor as protection for bottom insulation as standard from models
HT 16/16 upwards (distributed load 5 kg/dm2)
· Vapor vent in the furnace roof with motorized exhaust air flaps, controlled via the
extra function of the controller
· Heating elements switched via thyristors

Additional Equipment
· Cooling system to cool the furnace with a defined temperature gradient or with
a preset fresh air volume. Both operating modes can be switched on and off for
different segments by means of the extra function of the controller.
· Safety package for debinding in air. Debinding technical ceramics is a critical
process because of the hydrocarbons that are released. Hydrocarbons are
flammable and there is a risk that a flammable mixture could form inside the
furnace. Nabertherm offers tailored safety packages with respect to the process
and the volume of binder that allow the furnace to be operated safely.
· Special heating elements for zirconia sintering
· Protective gas connection to purge with non-flammable protective or reaction
gases
· Automatic gas supply system with solenoid valve and rotameter, controlled by
the extra function of the controller
· Inner process box to improve the gas tightness and to protect the furnace
chamber against contamination
· Refractory brick floor insulation for a higher floor load (Tmax 1700 °C)
· Lift door
· Automatic door lock incl. door contact switch
· Ethernet interface

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.

Standard Equipment
· Tmax 1600 °C, 1750 °C, or 1800 °C
· Recommended working temperature 1750 °C (for models LHT ../18), increased
wear and tear must be expected in case of working at higher temperatures
· High-quality molybdenum disilicide heating elements
· Adjustable air inlet opening, exhaust air opening in the roof
· Type B thermocouple
· Controller P470 (50 programs with each 40 segments), controls description see
page 75

Additional Equipment
· Over-temperature limiter with adjustable cutout temperature as temperature
limiter to protect the oven and load
· Protective gas connection to purge with non-flammable protective or reaction
gases, not gas tight
· Manual or automatic gas supply system