All products

The muffle furnaces L 3/11 - LT 60/12 have been proven for daily laboratory use. These models stand out for their excellent workmanship, advanced and attractive design, and high level of reliability.

Standard Equipment
• Heating from two sides by ceramic heating plates (heating from three sides for muffle furnaces L 24/11 - LT 60/12) for an optimal temperature uniformity
• Temperature uniformity of +/− 5 K with closed fresh-air inlet in empty work space according to DIN 17052-1 at working temperatures above 800 °C
• Thermocouple type S (1200 °C)
• Ceramic heating plates with integral heating element which is safeguarded and easy to replace
• With lift door (LT)
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
• Adjustable air inlet integrated in door (see illustration)
• Exhaust air outlet in rear wall of furnace
• Controller with touch operation B510 (5 programs with each 4 segments)
• Solid state relays provide for lownoise operation

Option
• Chimney, chimney with fan or catalytic converter (not for L 1 and L 15)
• 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

A twin system, volume-controlled, for softening iron and manganese-free drinking water, in compliance with the German Drinking Water Ordinance, fully automatic with 5-stage central control valve with intelligent control electronics, made of red brass. 2 pressurised tanks made of non-corroding GFP, including top quality cation exchanger. 1 salt water tank with sieve bottom and float valve.

Laboratory refrigerators and freezers are expected to offer the highest level of safety and reliability. The precise electronic control, forced-air cooling system, and highly efficient insulation work together to achieve outstanding energy efficiency, keeping operating costs low and ensuring environmental protection. The advanced components and precise regulation ensure optimal storage conditions for materials over the long term.

Product Features

Simple Operation
User-friendly solutions for daily use

• Built-in handle spanning the full height of the door
• 2.4” color electronic control interface with touch & swipe functionality
• Easy-to-clean stainless steel interior
• Flush-mounted internal side LED lighting (vertical, full height)

Safety and Reliability

• Temperature stability: up to ±5 °C
• VCC variable speed compressor
Thanks to variable speed compressors, the right performance is always available. This results in reduced energy consumption and provides greater temperature stability.
• Visual and audible alarm for malfunctions
• SafetyDevice: prevents the temperature from dropping below +2 °C and freezing
• PT1000 product temperature sensor
In addition to the built-in control sensor, a secondary temperature sensor is available to measure simulated product temperature. The value measured by the product temperature sensor can be displayed on the screen. It is calibratable, and the upper/lower thresholds of the device's alarm functions are based on this value for safer storage based on real product temperatures.

Power Failure Alarm
In case of a power failure, the built-in battery maintains power for at least twelve hours and immediately triggers an audible and visual alarm. Additional indication of when the power outage began and the maximum temperature reached.

• LightAlarm
If there is uncontrolled temperature rise, an open door, or another issue, the internal lighting of the unit will start flashing.
• Alarm History: Quality control made easy
Logs the key data of the last 10 alarms (e.g., date or maximum temperature) for final quality assessment of stored goods.
• Built-in data logger: trackable for years
Complete traceability independent of monitoring systems, with logging of temperature profiles, alarm history, and service information for up to 5 years. Stored data can be read via USB port.
• The door automatically closes when opened at an angle less than 90°
• Probe access port: 1 x Ø 12 mm
• Electronic locking system: protection against unauthorized access with PIN code or remote locking/unlocking
• SmartLock: the door automatically locks in case of a temperature alarm and can only be unlocked by authorized personnel
• Long lifespan

Compliance and Documentation

• Compliance with DIN 13277 and IEC 61010-2-011
Liebherr's laboratory and pharmaceutical refrigeration units meet all the characteristics and performance criteria required for full compliance with the DIN 13277 standard, which defines the requirements and testing procedures for cooling and freezing equipment used in laboratories and for drug storage.
• Compliance with IEC 60068-3 standard for temperature distribution and consistency
• Compliance with IEC 61010-2-011 standard for safety
• Temperature setting (calibration)
• Logging of minimum/maximum temperature values
• Integrated connectivity (LAN or WiFi for BMS or SmartMonitoring system)

Technical Data

• Gross/net capacity: 871/702 L
• External dimensions (W/D/H): 787/1017/2135 mm
• Internal dimensions (W/D/H): 579/788/1470 mm
• White, stainless steel external casing
• Door/Cover material: steel
• Adjustable shelves: 4
• Plastic-coated racks
• Usable shelf size (W/D): 570 / 788 mm
• Shelf load capacity: 60 kg
• Door opening: right, reversible
• Castors with arrestor at the front, fixed castors at the rear
• Gross/net weight: 167/149 kg
• Energy consumption/year: 748 kWh
• Ambient temperature: +10 °C to +35 °C
• Heat emission: 935 kJ/h
• Refrigerant: R 290
• Noise level: 60 dB(A)
• Frequency / voltage: 50/60 Hz / 220-240 V~

• Due to its blade dimensions, the straight-blade impeller BR 11 is ideally suited for solutions, emulsions and suspensions in vessels with the following characteristics:
• Ideal vessel diameter: 100 mm
• Ideal ground clearance: 5 mm
• Ideal filling level: 100 mm
• Ideal volume: 800 ml
• The straight-blade impeller BR 11 has a total length of 400 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm.

For the optimum loading of wide neck flasks, measuring cylinders, etc.
• Area of application: reprocessing laboratory glassware
• Equipped with 13 large spring hooks x 175 mm height
• The distance between the spring hooks is approx. 85 mm

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111
PLW 8505
PLW 8604

This chemistry vacuum system provides the simultaneous operation of two processes with only one pump. Typical applications are rotary evaporators, vacuum concentrators and vacuum drying ovens. Each vacuum connection is provided with a manual valve to regulate the effective flow at each port. The MD 4C NT pump offers more than sufficient pumping speed also for the parallel operation of two challenging applications. The separator at the inlet (AK), made of glass with a protective coating, retains particles and liquid droplets. The waste vapor condenser at the outlet (EK) is highly efficient and compact. The condenser enables near-100-percent solvent recovery, efficient recycling and active protection of the environment.

Performance features
• outstanding chemical resistance and superior vapor tolerance
• exceptionally high performance even at low vacuum
• excellent ultimate vacuum even with gas ballast
• simultaneous operation of two independent vacuum applications, with reliable check valves to prevent interference between systems
• excellent environmental friendliness due to efficient solvent recovery

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

• Due to its blade dimensions, the straight-blade impeller BR 11 is ideally suited for solutions, emulsions and suspensions in vessels with the following characteristics:
• Ideal vessel diameter: 100 mm
• Ideal ground clearance: 5 mm
• Ideal filling level: 100 mm
•Ideal volume: 800 ml
• The straight-blade impeller BR 11 has a total length of 400 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm.

For the optimum loading of beakers up to 250 ml.
• Area of application: reprocessing laboratory glassware
• Suitable for 21 glass beakers up to 250 ml
• Equipped with 21 x 3 stay bars
• For use in upper and lower basket

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

• Especially when using narrow-necked vessels, e.g. round-bottom flasks, a stirring tool with pivoting blades is used. Just like our pivoting-blade impeller BR 12.
•This blade impeller is ideal for dissolving and homogenizing in vessels with the following characteristics:
• Ideal vessel diameter: 120 mm
• Ideal ground clearance: 6 mm
• Ideal filling level: 120 mm
• Ideal volume: 1,400 ml
• The pivoting-blade impeller BR 12 has a total length of 400 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm.

For the optimum loading of beakers from 250 to 600 ml.
• Area of application: reprocessing laboratory glassware
• Suitable for 10 glass beakers between 250 - 600 ml
• Equipped with 10 x 3 stay bars
• For use in lower basket

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

• Due to its blade dimensions, the square-blade impeller BR 13 is ideal for loosening and homogenizing in vessels with the following characteristics:
• Ideal vessel diameter: 140 mm
• Ideal ground clearance: 7 mm
• Ideal filling level: 140 mm
• Ideal volume: 2,200 ml
• The square-blade impeller BR 13 has a total length of 450 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm.

For the optimum loading of beakers from 600 to 1,000 ml.
• Area of application: reprocessing laboratory glassware
• Suitable for 8 glass beakers between 600 - 1000 ml
• Equipped with 8 x 3 stay bars
• For use in lower basket

Machine affiliation:
G 7825
PG 8527
PG 8535
PG 8536
PLW 8636 [LAB / LAB MON]
PG 8504
PG 8583
PG 8583 CD
PG 8593
PLW 8505
PLW 8604
PLW 8615
PLW 8616
PLW 8617
PLW 8683
PLW 8683 CD
PLW 8693
PLW 6011
PLW 6111
PLW 7111

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection

Advanced control technology and a small bath fluid reservoir enable highly dynamic temperature control systems to achieve rapid heat-up and cool-down. This gives you the ability to handle difficult temperature challenges quickly.
The PRESTO® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations. These instruments cover a working temperature of -92 to +250 °C with high cooling and heating capacity.
• USB connection
• For highly precise, external temperature applications
• Rapid heating and cooling
• Wide working temperature ranges without changing fluids
• Highest performance with small footprint
• Space-saving design optimizes space utilization in your lab
• Ethernet interface
• SD-Card slot
• RS232 / RS485 (optional) / Profibus DP (optional)
• Connections for alarm-output, Pt100 external sensor and standby-input
• Removable ventilation grid
• Highly precise ICC cascade temperature control
• Electronic level indication
• Integrated programmer
• Unsurpassed power and efficiency
• Space optimized design creates more room directly next to the units
• External Pt100 sensor connection