High-Temperature Furnaces/Sintering Furnaces

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

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

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

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

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

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

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

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

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

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

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

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