All products

Liebherr freezers for laboratory and research use meet the highest requirements, especially in terms of safety and temperature stability.

• Integrated data logger
The integrated logger records the temperature profile, alarm history and service information for up to five years. The data can be read out directly from the appliance via the USB interface.

• Min./max. temperature log
The min./max. temperature log stores the minimum and maximum interior temperatures and shows on the display whether the storage temperatures were within the tolerance limits.

• +2 °C SafetyDevice
If the temperature falls below +2 °C due to a malfunction, the SafetyDevice takes control, stabilising the temperature, activating the alarm and protecting the contents from freezing

• Power failure alarm
If a malfunction occurs, an integrated battery provides a visual and audible alarm and takes over the power supply. As soon as the power is restored, the time of failure and the maximum temperature reached are displayed.

• LightAlarm
In the event of an uncontrolled temperature rise or other problems, the interior light of the appliance starts flashing. This visually shows when action is needed.

• Feedthrough for external sensors
An integrated opening allows a separate sensor to be connected for additional temperature monitoring without having to drill holes or break the door seal.

• Mechanical lock
Liebherr professional appliances are equipped with a mechanical lock and two keys. This ensures that unauthorised persons cannot access your valuable and sensitive stored goods.

• SmartMonitoring
The cloud-based digital solution continuously monitors and documents temperatures and alerts you immediately via email, text message or phone if any deviations occur.

• Integrated WiFi/LAN interface
The integrated WiFi/LAN interface enables you to easily connect your appliances with Liebherr SmartMonitoring or existing local systems.

• Easy-to-clean interior
The inner liner made of fully recyclable, robust and odourless polystyrene is manufactured in one piece without joints. This makes it quick and easy to clean the large, rounded corners.

• Replaceable door seal
Save time and money: the insertable Liebherr door seals are easy to change. If a seal is damaged, you can replace it yourself without any tools. Contact Liebherr Customer Service to purchase replacements.

• Self-closing door < 90°
To make loading, unloading and cleaning easier, the appliance door stays open if opened by more than 90°. If the opening angle is less than 90°, it closes automatically for safety

• NoFrost technology
Liebherr professional laboratory appliances no longer need manual defrosting. Any moisture that occurs is bound by the fan-assisted cooling, and when necessary, defrosting phases remove any remaining moisture particles from of the interior – for convenient, safe, and ice-free storage.

• ±5 °C temperature stability
Sensitive substances cannot be subjected to large deviations from the set storage temperature. Liebherr freezers guarantee a temperature fluctuation of no more than ±5 °C, so that the valuable goods you store in them are optimally protected and their quality is preserved.

• Standard compliance
The devices fully comply with the DIN 13277 standard and the IEC 61010-2-011 standard.

Ashing furnace LV(T) .. 11 is designed especially for ashing processes to 1050 °C in the laboratory. Applications include determining loss on ignition, ashing food and plastics for subsequent substance analysis. A special fresh-air and exhaust air system ensures that the air is replaced 6 times per minute so that there is always sufficient oxygen for the ashing process. Incoming air passes the furnace heating and is pre-heated to ensure good temperature uniformity.

Standard Equipment
• Heating from two sides
• Ceramic heating plates with integral heating element which is safeguarded, and easy to replace
• Air exchange of more than 6 times per minute
• Good temperature uniformity due to preheating of incoming air, temperature uniformity according to DIN 17052-1 to +/− 10 °C in the defined empty work area (from 550 °C)
• Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
• Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
• Suitable for many standardized ashing processes according to ISO, ASTM, EN, and DIN
• With lift door (LVT)
• Solid state relays provide for lownoise operation
• Controller C550 (10 programs with each 20 segments)

Option
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Port for thermocouple in the rear wall or in the furnace door
• Charging rack with closed or perforated trays for loading the furnace in two levels incl. holder for inserting/removing the trays up to a max. temperature of 800 °C and a max. loading weight per layer of 2 kg for the LV(T) 9/11 respectively 3 kg for the LV(T) 15/11

Ashing furnace LV(T) .. 11 is designed especially for ashing processes to 1050 °C in the laboratory. Applications include determining loss on ignition, ashing food and plastics for subsequent substance analysis. A special fresh-air and exhaust air system ensures that the air is replaced 6 times per minute so that there is always sufficient oxygen for the ashing process. Incoming air passes the furnace heating and is pre-heated to ensure good temperature uniformity.

Standard Equipment
• Heating from two sides
• Ceramic heating plates with integral heating element which is safeguarded, and easy to replace
• Air exchange of more than 6 times per minute
• Good temperature uniformity due to preheating of incoming air, temperature uniformity according to DIN 17052-1 to +/− 10 °C in the defined empty work area (from 550 °C)
• Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
• Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
• Suitable for many standardized ashing processes according to ISO, ASTM, EN, and DIN
• With lift door (LVT)
• Solid state relays provide for lownoise operation
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Port for thermocouple in the rear wall or in the furnace door
• Charging rack with closed or perforated trays for loading the furnace in two levels incl. holder for inserting/removing the trays up to a max. temperature of 800 °C and a max. loading weight per layer of 2 kg for the LV(T) 9/11 respectively 3 kg for the LV(T) 15/11

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With flap door (L)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• With Controller C550 (10 programs / 20 steps)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With flap door (L)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With lift door (LT)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• With Controller C550 (10 programs / 20 steps)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With flap door (L)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• With Controller C550 (10 programs / 20 steps)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With flap door (L)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With lift door (LT)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• With Controller C550 (10 programs / 20 steps)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With lift door (LT)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With flap door (L)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• With Controller C550 (10 programs / 20 steps)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With flap door (L)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With lift door (LT)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• With Controller C550 (10 programs / 20 steps)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With lift door (LT)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

We particularly recommend the muffle furnace L 9/11/SKM for heat treatment of aggressive substances. The furnace has a ceramic muffle with embedded heating from four sides. The muffle furnace thus combines a very good temperature uniformity with excellent protection of the heating elements from aggressive atmospheres. Another aspect is the smooth, nearly particle free muffle (furnace door made of fiber insulation), an important quality feature.

Standard Equipment
• Furnace chamber with embedded ceramic muffle, high resistance to aggressive gasses and vapours
• Muffle heated from four sides
• Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
• Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
• With lift door (LT)
• Adjustable working air inlet in the door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Defined application within the constraints of the operating instructions
• With Controller C550

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automation gas supply system
• Port for thermocouple in the rear wall or in the furnace door

We particularly recommend the muffle furnace L 9/11/SKM for heat treatment of aggressive substances. The furnace has a ceramic muffle with embedded heating from four sides. The muffle furnace thus combines a very good temperature uniformity with excellent protection of the heating elements from aggressive atmospheres. Another aspect is the smooth, nearly particle free muffle (furnace door made of fiber insulation), an important quality feature.

Standard Equipment
• Furnace chamber with embedded ceramic muffle, high resistance to aggressive gasses and vapours
• Muffle heated from four sides
• Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
• Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
• With flap door (L)
• Adjustable working air inlet in the door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Defined application within the constraints of the operating instructions
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automation gas supply system
• Port for thermocouple in the rear wall or in the furnace door

We particularly recommend the muffle furnace L 9/11/SKM for heat treatment of aggressive substances. The furnace has a ceramic muffle with embedded heating from four sides. The muffle furnace thus combines a very good temperature uniformity with excellent protection of the heating elements from aggressive atmospheres. Another aspect is the smooth, nearly particle free muffle (furnace door made of fiber insulation), an important quality feature.

Standard Equipment
• Furnace chamber with embedded ceramic muffle, high resistance to aggressive gasses and vapours
• Muffle heated from four sides
• Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
• Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
• With lift door (LT)
• Adjustable working air inlet in the door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Defined application within the constraints of the operating instructions
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automation gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these muffle furnaces. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These muffle furnaces thus represent an interesting alternative to the familiar L(T) ../12 models, when you need a higher application temperature.

Standard Equipment
• Heating from two sides
• Heating elements on support tubes ensure free heat radiation and a long service life
• Multi-layer insulation with robust lightweight refractory bricks in the furnace chamber
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• With lift door (LT)
• Adjustable air inlet in the furnace door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Controller with touch operation B510 (5 programs with each 4 segments)

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automatic gas supply system
• Port for thermocouple in the rear wall or in the furnace door

Ashing furnace LV ../11 is designed especially for ashing processes to 1050 °C in the laboratory. Applications include determining loss on ignition, ashing food and plastics for subsequent substance analysis. A special fresh-air and exhaust air system ensures that the air is replaced 6 times per minute so that there is always sufficient oxygen for the ashing process. Incoming air passes the furnace heating and is pre-heated to ensure good temperature uniformity.

Standard Equipment
• Tmax 1100 °C
• Heating from two sides
• Ceramic heating plates with integral heating element which is safeguarded, and easy to replace
• Air exchange of more than 6 times per minute
• Good temperature uniformity due to preheating of incoming air, temperature uniformity according to DIN 17052-1 to +/− 10 °C in the defined empty work area (from 550 °C)
• Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
• Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
• Suitable for many standardized ashing processes according to ISO, ASTM, EN, and DIN
• With flap door (LV)
• Controller C550 (10 programs with each 20 segments)
• Solid state relays provide for lownoise operation
• Defined application within the constraints of the operating instructions
• NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Options
• Overtemperature limit controller
• Hole for thermocouple in rear wall
• Hole for thermocouple in furnace door
• Process control and documentation via VCD software package for monitoring, documentation and control

We particularly recommend the muffle furnace L 9/11/SKM for heat treatment of aggressive substances. The furnace has a ceramic muffle with embedded heating from four sides. The muffle furnace thus combines a very good temperature uniformity with excellent protection of the heating elements from aggressive atmospheres. Another aspect is the smooth, nearly particle free muffle (furnace door made of fiber insulation), an important quality feature.

Standard Equipment
• Furnace chamber with embedded ceramic muffle, high resistance to aggressive gasses and vapours
• Muffle heated from four sides
• Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
• Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
• With flap door (L)
• Adjustable working air inlet in the door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for lownoise operation
• Defined application within the constraints of the operating instructions
• With controller C550

Option
• Chimney, chimney with fan or catalytic converter
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
• Protective gas connection to purge with non-flammable process gases (not available in combination with chimney, chimney with fan or catalytic converter) not gas tight
• Manual or automation gas supply system
• Port for thermocouple in the rear wall or in the furnace door