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High quality furnaces from Nabertherm covering all applications including muffle/ashing furnaces, annealing/hardening furnaces, tube & chamber furnaces, melting furnaces and kilns.

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An innovative range of CO2 incubators for both routine tissue culture applications as well as more specialist requirements such as IVF.

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With 60 yrs freeze drying experience our comprehensive range of Christ Freeze Dryers includes laboratory freeze dryers, pilot freeze dryers and production freeze dryers up to 600kg.

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A complete range of incubators from personal 22 ltr bench-top incubators to large general purposes incubators and plant growth cabinets, together with a full series of test/environmental chambers.

Microfuges

An innovative range of ultra compact microfuges and refrigerated microfuges. The Sigma 1-14K is one of the smallest 24-place refrigerated microfuges in the world.

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A comprehensive range of ovens from 22ltr to 1050ltrs suitable for all applications from simple drying ovens through to high temperature ovens up to 850°C & vacuum ovens.

Liquid Handling

Our exclusive range of high performance SciPette liquid handling products includes pipettors & pipettor stands, pipette aids, pipette controllers and pipette tips. We also provide calibrated pipettor servicing.

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A comprehensive range of temperature test, environmental and climatic chambers covering all aspects of the stability/environmental testing. Chamber sizes from 55 to 720 litres.

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An extensive range of roll-in incubators and roller systems together with tissue culture glassware including spinner, de-long, fernbach and Erlenmeyer flasks, cloning cylinders, Hungate, anaerobic and Leighton culture tubes.

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Innovative vacuum pumps for all lab applications including chemistry, freeze drying, gel dryers, vacuum ovens and sample concentration. The range includes rotary vane and oil-free diaphragm pumps.

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From simple recirculating water baths to process thermostats and recirculating chillers. The range also includes calibration thermostats. Temperatures from -90°C to +400°C.

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Scipette Pipettors

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You are here: Home > Furnaces > Professional Chamber Furnaces with Brick Insulation LH or Fibre Insulation LF

Professional Chamber Furnaces with Brick Insulation LH or Fibre Insulation LF

LH 60/12 with scale to measure weight reduction during annealing

LF 120/12 with fibre insulation

LH 120/12S with quartz glass retort

Interior of low heat storage fibre material for fast cooling times in LF models

Cooling fan connected to automatic vent flap for shorter cooling time

LH 15/12 - LF 120/14

The LH 15/12 - LF 120/14 laboratory furnaces have been trusted for many years as professional chamber furnaces for the laboratory. These furnaces are available with either a robust insulation of light refractory bricks (LH models) or with a combination insulation of refractory bricks in the corners and low heat storage, quickly cooling fibre material (LF models). With a wide variety of optional equipment, these models can be optimally adapted to your processes.

Tmax 1200 °C, 1300 °C, or 1400 °C
Five-sided heating for very good temperature uniformity
Heating elements on support tubes ensure free heat radiation and a long service life
Protection of floor heating and flat stacking surface provided by embedded SiC plate in the floor
LH models: multilayered, fibre-free insulation of light refractory bricks and special backup insulation
LF models: high-quality fibre insulation with corner bricks for shorter heating and cooling times
Door with brick-on-brick seal, hand fitted
Short heating times due to high installed power
Side vent with bypass connection for exhaust pipe
Self-supporting arch for high stability and greatest possible protection against dust
Quick lock on door
Freely adjustable air slide intake in furnace floor
Stand included

Additional Equipment

Parallel swinging door, pivots away from operator, for opening when hot
Lift door with electro-mechanic linear drive
Separate wall-mounting or floor standing cabinet for switchgear
Automatic vent flap
Cooling fan for shorter cycle times
Protective gas connector, sealed housing
Retort made of quartz glass for very clean atmosphere, quartz glass covered door with lid function
Manual or automatic gas supply system
Scale to measure weight reduction during annealing

Technical Specifications

Model	Tmax °C	Inner dimensions in mm			Volume in L	Outer dimensions in mm			Power kW	Electrical connection*	Weight in kg
Model	Tmax °C	w	d	h	Volume in L	W	D	H	Power kW	Electrical connection*	Weight in kg
LH 15/12	1200	250	250	250	15	570	790	1170	5,0	3-phase¹	150
LH 30/12	1200	320	320	320	30	640	860	1240	7,0	3-phase¹	170
LH 60/12	1200	400	400	400	60	720	1010	1320	8,0	3-phase	260
LH 120/12	1200	500	500	500	120	820	1110	1420	12,0	3-phase	340

LH 15/13	1300	250	250	250	15	570	790	1170	7,0	3-phase¹	150
LH 30/13	1300	320	320	320	30	640	860	1240	8,0	3-phase¹	170
LH 60/13	1300	400	400	400	60	720	1010	1320	11,0	3-phase	260
LH 120/13	1300	500	500	500	120	820	1110	1420	15,0	3-phase	340

LH 15/14	1400	250	250	250	15	570	790	1170	8,0	3-phase¹	150
LH 30/14	1400	320	320	320	30	640	860	1240	10,0	3-phase¹	170
LH 60/14	1400	400	400	400	60	720	1010	1320	12,0	3-phase	260
LH 120/14	1400	500	500	500	120	820	1110	1420	18,0	3-phase	340

Model	Tmax °C	Inner dimensions in mm			Volume in L	Outer dimensions in mm			Power kW	Electrical connection*	Weight in kg
Model	Tmax °C	w	d	h	Volume in L	W	D	H	Power kW	Electrical connection*	Weight in kg
LF 15/13	1300	250	250	250	15	570	790	1170	7,0	3-phase¹	130
LF 30/13	1300	320	320	320	30	640	860	1240	8,0	3-phase¹	150
LF 60/13	1300	400	400	400	60	720	1010	1320	11,0	3-phase	230
LF 120/13	1300	500	500	500	120	820	1110	1420	15,0	3-phase	300

LF 15/14	1400	250	250	250	15	570	790	1170	8,0	3-phase¹	130
LF 30/14	1400	320	320	320	30	640	860	1240	10,0	3-phase¹	150
LF 60/14	1400	400	400	400	60	720	1010	1320	12,0	3-phase	230
LF 120/14	1400	500	500	500	120	820	1110	1420	18,0	3-phase	300

¹Heating only between two phases