Product Range :
Compact Tube Furnaces
RD Tube Furnaces
Tube Furnaces with Stand for Horizontal or Vertical Operation
High-Temperature Tube Furnaces with SiC Rod Heating Gas Atmosphere or Vacuum
High-Temperature Tube Furnaces for Horizontal and Vertical Operation up to 1800 °C Gas Atmosphere or Vacuum
Split-Type Tube Furnaces for Horizontal or Vertical Operation up to 1300 °C Gas Atmosphere or Vacuum
Rotary Tube Furnaces for Batch Operation up to 1100 °C
Rotary Tube Furnaces for Continuous Processes up to 1300 °C
Summary :
COMPACT TUBE FURNACES
These compact tube furnaces with integrated control systems can be used universally for many processes. Equipped with a standard working tube of C 530 ceramic and two fiber plugs, these tube furnaces have an unbeatable price/performance ratio.
• Tmax 1200 °C or 1300 °C
• Single-zoned design as standard
• Dual shell housing made of sheets of textured stainless steel
• Outer tube diameter of 50 mm to 170 mm, heated length from 250 mm to 1000 mm
• Working tube of C 530 ceramic including two fiber plugs as standard equipment
• Tmax 1200 °C: Type N thermocouple
• Tmax 1300 °C: Type S thermocouple
• Solid state relays provide for low noise operation
• Defined application within the constraints of the operating instructions
Additional equipment
• Over-temperature limiter with adjustable cut out temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
• Charge control with temperature measurement in the working tube and in the furnace chamber outside the tube
• Three-zoned design (heated length from 500 mm)
• Gas supply systems for protective gas or vacuum operation
• Process control and documentation via VCD software package for monitoring, documentation and control
RD TUBE FURNACES
The RD tube furnaces convince with their unbeatable price-performance ratio, very compact outer dimensions and their low weight. These all-rounders are equipped with a working tube which also serves as support for the heating wires. Thus, the working tube is part of the furnace heating which has the advantage that the furnaces achieve very high heat-up rates. The tube furnaces can be supplied for 1100 °C or 1300 °C. Both models are designed for horizontal application. If the customer requires protective gas atmosphere, a separate working tube incl. gas supply system 1, e.g. made of quartz glass, must be inserted in the working tube.
• Tmax 1100 °C or 1300 °C
• Housing made of sheets of textured stainless steel
• Inner diameter of the tube: 30 mm, heated length: 200 mm
• Working tube made of C 530 material including two fiber plugs as standard
• Thermocouple type K (1100 °C) or type S (1300 °C)
• Solid state relays provide for low-noise operation of the heating
• Heating wires wound directly around the working tube resulting in very fast heat-up rates
• Defined application within the constraints of the operating instructions
Additional equipment
• Over-temperature limiter with adjustable cut out temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
• Gas supply system for non-flammable protective or reactive gas
TUBE FURNACES WITH STAND FOR HORIZONTAL OR VERTICAL OPERATION
These compact tube furnaces are used when laboratory experiments must be performed horizontally, vertically, or at specific angles. The ability to configure the angle of tilt and the working height, and their compact design, also make these tube furnaces suitable for integration into existing process systems.
• Tmax 1100 °C, 1300 °C, or 1500 °C
• Compact design
• Vertical or horizontal operation freely adjustable
• Working height freely adjustable
• Working tube made of C 530 ceramic
• Type S thermocouple
• Operation also possible separate from stand if safety guidelines are observed
• Control system integrated in furnace base
• Defined application within the constraints of the operating instructions
HIGH-TEMPERATURE TUBE FURNACES WITH SIC ROD HEATING GAS ATMOSPHERE OR VACUUM
These compact tube furnaces with SiC rod heating and integrated switchgear and controller can be used universally for many processes. With an easy to replace working tube as well as additional standard equipment options, these furnaces are flexible and can be used for a wide range of applications. The high-quality fiber insulation ensures fast heating and cooling times. The SiC heating rods installed parallel to the working tube ensure excellent temperature uniformity. The price-performance ratio for this temperature range is unbeatable.
• Tmax 1500 °C
• Housing made of sheets of textured stainless steel
• High-quality fiber insulation
• Active cooling of housing for low surface temperatures
• Type S thermocouple
• Solid state relays provide for low-noise operation
• Prepared for assembly of working tubes with water-cooled flanges
• Ceramic tube, C 799 quality
• Defined application within the constraints of the operating instructions
Additional equipment
• Over-temperature limiter with adjustable cut out temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
• Charge control with temperature measurement in the working tube and in the furnace chamber outside the tube
• Fiber plugs
• Check valve at gas outlet avoids intrusion of false air
• Working tubes for operation with water-cooled flanges
• Display of inner tube temperature with additional thermocouple
• Alternative gas supply systems for protective gas or vacuum operation
HIGH-TEMPERATURE TUBE FURNACES FOR HORIZONTAL AND VERTICAL OPERATION UP TO 1800 °C GAS ATMOSPHERE OR VACUUM
The high-temperature tube furnaces are available in either horizontal (type RHTH) or vertical (type RHTV) designs. High-quality insulation materials made of vacuum-formed fiber plates enable energy-saving operation and a fast heating time due to low heat storage and heat conductivity. By using different gas supply systems, operations can be performed under non-flammable or flammable protective or reactive gases or under vacuum.
• Tmax 1600 °C, 1700 °C, or 1800 °C
• MoSi2 heating elements, mounted vertically for easy replacement
• Insulation with vacuum-formed ceramic fiber plates
• Rectangular outer housing with slots for convection cooling
• Tube furnaces RHTV with frame for vertical operation
• Housing made of sheets of textured stainless steel
• Ceramic working tube made of material C 799 incl. fibre plugs operation under air
• Type B thermocouple
• Power unit with low-voltage transformer and thyristor
• Over-temperature limiter with adjustable cut out temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load and with selectable maximum temperature gradient as tube protection
• Switchgear and control unit separate from furnace in separate floor standing cabinet
• Defined application within the constraints of the operating instructions
Additional equipment
• Charge control with temperature measurement in the working tube and in the furnace chamber outside the tube
• Display of inner tube temperature with additional thermocouple
• Gas tight flanges for protective gas and vacuum operation
• Manual or automatic gas supply system
• Three-zone control for optimization of temperature uniformity (only tube furnaces RHTH)
• Check valve at gas outlet avoids intrusion of false air
SPLIT-TYPE TUBE FURNACES FOR HORIZONTAL OR VERTICAL OPERATION UP TO 1300 °C GAS ATMOSPHERE OR VACUUM
These tube furnaces can be used for horizontal (RSH) or vertical (RSV) operation. The split-type design makes it easy to change the working tube. It allows for a comfortable exchange of various working tubes (e.g. working tubes made of different materials).
Using the wide range of accessories these professional tube furnaces can be optimally tailored to your process. By upgrading the furnaces with different gas supply systems the operation in a protective gas atmosphere, under vacuum or under flammable protective or reactive gases is possible. Besides convenient standard controllers for process control modern PLC control systems are also available.
• Tmax 1100 °C or 1300 °C
• Housing made of sheets of textured stainless steel
• Tmax 1100 °C: Type N thermocouple
• Tmax 1300 °C: Type S thermocouple
• Frame for vertical operation (RSV)
• Split-type design for simple insertion of the working tube
• Working tube made of ceramic C 530 for operation in air included in scope of delivery
• Heating elements on support tubes provide for free radiation
• RSV: switchgear and control unit separate from furnace in own wall or standing cabinet
• RSH: switchgear and control unit integrated in furnace housing
• Defined application within the constraints of the operating instructions
Additional equipment
• Charge control with temperature measurement in the working tube and in the furnace chamber outside the tube
• Display of inner tube temperature with additional thermocouple
• Different gas supply systems for non-flammable or flammable protective or reactive gases and vacuum operation
• Three-zone control for optimization of temperature uniformity
• Cooling systems for accelerated cooling of the working tube and charge
• Check valve at gas outlet avoids intrusion of false air
• Base frame with integrated switchgear and controller
• Process control and documentation via VCD software package for monitoring, documentation and control
ROTARY TUBE FURNACES FOR BATCH OPERATION UP TO 1100 °C
The rotary tube furnaces of the RSRB series are ideally suited for batch operation. The permanent rotation of the working tube ensures that the charge is constantly in motion. Due to the special shape of the quartz reactor with the tapered pipe ends the batch is kept in the rotary tube furnace and can be heat-treated an arbitrarily long time period time; a controlled heating to the temperature profiles is also possible.
• Tmax 1100 °C
• Thermocouple type K
• Housing made of sheets of textured stainless steel
• Tube furnace designed as table-top model with quartz glass reactor which opens on both sides, tapered ends
• Reactor is removed for emptying out of the rotary tube furnace. Beltless drive and hinged furnace housing (opening temperature< 180 °C) provide for very easy tube removal
• Compact system, rotary tube furnace positioned on a base frame with
• Manual spindle drive with crank to pre-set the tilting angle
• Switchgear and controls integrated
• Castors
• Defined application within the constraints of the operating instructions
Additional equipment
• Three-zone control for the optimization of temperature uniformity
• Temperature display unit in the working tube with measurement by means of an additional thermocouple
• Charge control by means of an additional thermocouple in the working tube
• Different gassing systems with good flushing of the charge with process gas in counter flow (only in combination with feeding system below)
• Check valve at gas outlet avoids intrusion of false air
• Vacuum design, up to 10-2 mbar depending on the applied pump
• Charging system for continuous material transport, consisting of:
• Stainless steel funnel incl. electric vibration generator to optimize the material feeding into the working tube
• Electrically driven screw-conveyor at the inlet of the working tube with 10, 20 or 40 mm pitch and adjustable speed between 0.28 and 6 revolutions per minute, different gear transmissions for other speeds on request
• Collecting bottle made of laboratory glass at the outlet of the working tube
• Suitable for operation in gas atmosphere or vacuum
• Working tubes made of different materials
• Quartz glass batch reactors, Tmax 1100 °C
• Higher temperatures up to 1600 °C available on request
• Digital display unit for the tilting angle of the furnace
• Electric linear drive for the adjustment of the tilting angle
• PLC controls for temperature control and the control of connected aggregates such as gearshift and speed of the screw-conveyor, speed of the working tube, switching of the vibration generator, etc.
• Process control and documentation via VCD software package for monitoring, documentation and control.
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