Manufacturers of Muffle Furnaces, Tube Furnaces & Industrial Furnaces

 

Professional Furnaces with Flap Door or Lift Door

Our L 1/12 - LT 40/12 series is the right choice for daily laboratory use. These models stand out for their excellent workmanship, advanced and attractive design, and high level of reliability. The furnaces come equipped with either a flap door or lift door at no extra charge.

  • Tmax 1100 C or 1200 C

  • Heating from two sides by ceramic heating plates (heating from three sides for models L 24/11 - LT 40/12)

  • Ceramic heating plates with integral heating element which is safeguarded against fumes and splashing, and
    easy to replace18 lb.

  • Highly durable cured vacuum fiber module lining

  • Housing made of sheets of textured stainless steel

  • Dual shell housing for low external temperatures and high stability

  • Optional flap door (L) which can be used as work platform or lift door (LT) with hot surface facing away from the operator

  •  Adjustable air inlet integrated in door (see illustration)

  • Exhaust air outlet in rear wall of furnace

  • Solid state relays provide for low-noise operation

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Compact Muffle Furnaces

LE 1/11 - LE 14/11 With their unbeatable price/performance ratio, these compact muffle furnaces are perfect for many applications in the laboratory. Quality features like the dual shell furnace housing of rust-free stainless steel, their compact, lightweight constructions, or the heating elements encased in quartz glass tubes make these models reliable partners for your application.

  • Tmax 1100 C, working temperature 1050 C

  • Heating from two sides from heating elements in quartz glass tubes

  • Maintenance-friendly replacement of heating elements and insulation

  • Multilayered insulation with fiber plates in the furnace chamber

  • Housing made of sheets of textured stainless steel

  • Dual shell housing for low external temperatures and high stability

  • Flap door which can also be used as a work platform

  • Exhaust air outlet in rear wall

  • Solid state relays provide for low-noise operation

  • Compact dimensions and light weight

  • Controller mounted in side space (under the door on the LE 1/11, LE 2/11 and LE 4/11 to save space)

  • Controls description see page 60

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Muffle Furnaces with Brick Insulation and Flap Door or Lift Door

 L 5/13 - LT 15/13
Heating elements on support tubes radiating freely into the furnace chamber provide for particularly short heating times for these models. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 C. These models thus represent an interesting alternative to the familiar L(T) 3/11 models, when you need particularly short heating times or a higher application temperature.

  • Tmax 1300 C

  • Heating from two sides from heating elements

  • Heating elements on support tubes ensure free heat radiation and a long service life

  • Multilayer insulation with robust lightweight refractory bricks in the furnace chamber

  • Housing made of sheets of textured stainless steel

  • Dual shell housing for low external temperatures and stability

  • Optional flap door (L) which can be used as work platform or lift door (LT) with hot surface facing away from the
    operator

  • Adjustable air inlet in the furnace door

  • Exhaust air outlet in rear wall of furnace

  • Solid state relays provide for low-noise operation

  • Controls description see page 60

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Ashing Furnaces with Flap Door or Lift Door

LV 3/11 - LVT 15/11
The models LV 3/11 - LVT 15/11 are especially designed for ashing in the laboratory. A special air intake and exhaust system allows air exchange of more than 6 times per minute. Incoming air is preheated to ensure a good temperature uniformity.

  • Tmax 1100 C

  • Heating from two sides by ceramic heating plates

  • Ceramic heating plates with integral heating element which is safeguarded against fumes and splashing, and easy to replace

  • Highly durable, high-performance cured vacuum fiber module lining

  • Housing made of sheets of textured stainless steel

  • Dual shell housing for low external temperatures and stability

  • Optional flap door (L) which can be used as work platform or lift door (LT) with hot surface facing away from the operator

  • Solid state relays provide for lownoise operation

  • Air exchange of more than 6 times per minute

  • Good temperature uniformity due to preheating of incoming air

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Muffle Furnaces with Embedded Heating Elements in the Ceramic Muffle

L, LT 9/11/SKM We particularly recommend the L 9/11/SKM model if your application involves aggressive substances. The furnace has a ceramic muffle with embedded heating from four sides. The 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 for some ashing processes.

  • Tmax 1100 C

  • Muffle heated from four sides

  • Furnace chamber with embedded ceramic muffle, high resistance to aggressive gasses and vapours

  • Housing made of sheets of textured stainless steel

  • Optional flap door (L) which can be used as work platform or lift door (LT) with hot surface facing away from the operator

  • Adjustable working air inlet in the door

  • Exhaust air outlet in rear wall of furnace

  • Solid state relays provide for lownoise operation

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Furnace Systems with Scale and Software for Determination of Combustion Loss

L 9/11/SW - LT 9/12/SW This complete system, with an furnace, integrated precision scale, and software, was designed especially for combustion loss determination in the laboratory. The determination of combustion loss is necessary, for instance, when analyzing sludges and household garbage, and is also used in a variety of technical processes for the evaluation of results. The difference between the initial total mass and the combustion residue is the combustion loss. During the process, the software included records both the temperature and the weight loss.

  • Tmax 1100 C or 1200 C

  • Heating from two sides by ceramic heating plates

  • Ceramic heating plates with integral heating element which is
    safeguarded against fumes and splashing, and easy to replace

  • Highly durable cured vacuum fiber module lining

  • Housing made of sheets of textured stainless steel

  • Optional flap door (L) which can be used as work platform or lift door (LT) with hot surface facing away from the operator

  • Adjustable working air inlet in the door

  • Exhaust air outlet in rear wall of furnace

  • Solid state relays provide for lownoise operation

  • Delivery includes base, ceramic plunger with base plate in the furnace lining, precision scale and software package

  • 3 scales available for different maximum weights and scaling ranges

  • Software for documentation of the temperature curve and combustion loss using a PC

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Muffle Furnaces with Integrated Air Circulation

LT 5/11HA - LT 15/11HA
The LT 5/11HA - LT 15/11HA muffle ovens with integrated air circulation provide an optimum temperature uniformity in the furnace chamber and heat transmission to your batch. This advantageous effect not only increases the precision of the results of your work, it is also a true quality factor, particularly when you need good uniformity in the lower temperature range.

  • Tmax 1100 C

  • Heating from two sides by ceramic heating plates

  • Ceramic heating plates with integral heating element which is safeguarded against splashing, and easy to replace

  • Highly durable cured vacuum fiber module lin

  • Housing made of sheets of textured stainless steel

  • Dual shell housing for low external temperatures and stability

  • With lift door (LT), whereby the hot side is away from the operator

  • Exhaust air outlet in rear wall of furnace

  • Solid state relays provide for lownoise operation

  • Circulation fans for better heat transmission and distribution, particularly during heating and cooling

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Annealing, Hardening and Brazing Furnaces

N 7/H - N 61/H
To withstand harsh use in the laboratory, e.g. when heat-treating metals, robust insulation with light refractory bricks is necessary. The N 7/H - N 61/H models are a perfect fit to solve this problem. The furnaces can be extended with a variety of accessories, like annealing boxes for operation under protective gas, roller guides, or a cooling station with a quenching bath. Even high-performance applications like the annealing of titanium in medical applications can be implemented without the use of expensive and complicated annealing systems.

  • Tmax 1280 C

  • Three-sided heating from both sides and the floor

  • Heating elements on support tubes ensure free heat radiation and a long service life

  • Floor heating protected by heat-resistant SiC plate

  • Multilayer insulation with high-quality lightweight refractory bricks in the furnace chamber

  • Exhaust opening in the side of the furnace, or on back wall of furnace in the N 31/H models and higher

  • Models N 7/H - N 17/HR are designed as tabletop models

  • Stand included with model N 31/H and up

  • Parallel swinging door which opens downward, or upward upon request

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Professional Chamber Furnaces with Brick Insulation or Fiber Insulation

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 fiber 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, fiber-free insulation of light refractory bricks and special backup insulation

  • LF models: high-quality fiber 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

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Other Muffle Furnaces like


High-Temperature Chamber Furnaces with SiC Rod Heating

High-Temperature Chamber Furnaces with MoSi2 Heating Elements as Table-Top Model

High-Temperature Lift-Bottom Furnace

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

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

High-Temperature Chamber Furnaces with SiC Rod Heating

Chamber Furnaces with Refractory Insulation up to 1700 C

High-Temperature Chamber Furnaces with Air Circulation

Air Circulation Chamber Furnaces for Clean Room Processes

Compact Tube Furnaces

Universal Tube Furnaces with Stand for Horizontal or Vertical Operation

Universal High-Temperature Tube Furnaces with Silicon Carbide Rod Heating Gas Atmosphere or Vacuum

Hinged Tube Furnaces for Horizontal or Vertical Operation up to 1300 C Gas Atmosphere or Vacuum

Rotary Tube Furnaces for Continuous Processes and/or Batch Operation

High-Temperature Tube Furnaces for Horizontal and Vertical Operation up to 1800 C Gas Atmosphere or Vacuum

Laboratory Melting Furnaces

Gradient or Lab Strand Annealing Furnaces

Assay Furnaces

Cold-Wall Retort Furnaces up to 2400 C

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