During debinding of technical ceramics, very good temperature uniformity is particularly important during the warm-up phase to avoid destruction of your material. For many applications, only air circulation furnaces can be used since their targeted circulation of the air optimizes the temperature distribution in the furnace chamber. The N 120/65 DB - N 500/65 DB air circulation furnaces are specifically developed for this application.

• Tmax 650 °C
• Horizontal air circulation for temperature distribution from ΔT 6 K according to DIN 17052
• Housing largely gas tight with special door seal
• Stainless steel interior housing
• 3 shelves included in the delivery package
• Additional rails for extra shelves included
• Automatic control of vapor vent flaps
• Additional alternative for ventilation through ball spigot
• Protective gas inlet and outlet
• In case of generation of flammable mixtures during the process a safety concept as described under Additional features is mandatory

Additional features

• Sophisticated safety concept (see page 9)
• Customized dimensions
• Air preheating
• Hot-gas exhaust fan
• Inert gas purging
• Automatic process control
• Exhaust gas ductwork
• Catalytic or thermal afterburner

Especially for debinding of heavy charges and/or loading outside the furnace, bogie hearth furnaces are recommended. Even the standard furnace achieves a particularly good temperature distribution of up to ΔT 14 K.

• Tmax 650 °C or 850 °C
• Special wheels so bogie can run on factory floor
• Three-sided heating, from both sides and from the bogie
• Vertical air circulation with fans in the furnace roof
• Sophisticated safety concept (see page 9)

Additional Features

• Atmosphere box for operation with inert gas
• Electro-hydraulic lift door
• Air inlet and outlet system
• Bogie on rails and/or electrical drive of the bogie
• Cooling systems
• Multi-zone control for optimizing the temperature distribution up to ΔT 6 K according to with DIN 17052
• Control of vapor vent flaps for fast cooling
• Customized dimensions of up to 20 m³ furnace volume

Our chamber furnaces with protective gas retorts are especially designed for debinding in defined atmospheres. The heating elements are protected behind the retort and do not come into contact with the process gasses. As optional equipment, we offer catalytic or thermal afterburner systems for these furnaces for the exhaust gasses.

N 21/M - N 321/M

• Tmax 1100 °C
• Gas-tight retort furnaces with horizontal retorts for heat treatment in defined protective gas atmospheres
• Port for chamber temperature measurements
• For all protective gasses, such as nitrogen, argon, or forming gas 95/5
• Water-cooled door seal with O ring
• Heating from two sides and floor

Additional standard features for N 41/MA - N 321/MA

• Tmax 900 °C
• Gas circulation fan on the door, resulting in optimum temperature distribution according to DIN 17052-1 of up to ΔT 14 K in the useful chamber
• Water-cooled motor flange

Additional features

• Manual or automatic gas supply systems
• Exhaust flap control and cooling fan for rapid retort cooling
• Cascade control of retort chamber temperature
• Vacuum pump for cold evacuation of the retort before start of the heat treatment, resulting in significant reduction of gas consumption during preflushing and time savings
• Catalytic or thermal afterburner systems for cleaning of the exhaust gasses caused from debinding

Like the chamber models, our pit type retort furnaces are designed for debinding in defined atmospheres. The furnaces are loaded from above and can be designed with a volume of up to 3000 liters.

S 100/R - S 1000/R

• Tmax 1100 °C
• Pit type retort furnaces for heat treatment in defined protective gas atmospheres
• Gas-tight retorts with protective gas inlet and outlet
• Port for chamber temperature measurements
• For all protective gasses, such as nitrogen, argon, or forming gas 95/5
• Water-cooled lid with O ring seal
• Heated from four sides
• Optimum temperature distribution per DIN 17052-1 to ΔT 14 K in useful chamber
• Pneumatic or hydraulic lid lifting system

Additional standard features S 500/RA - R 1000/RA

• Gas circulation with fans in the lid, resulting in optimum temperature distribution according to DIN 17052-1 of up to ΔT 6 K in useful chamber
• Water-cooled motor flange

Additional Features

• Manual or automatic gas supply system
• Exhaust flap control and cooling fan for rapid retort cooling
• Cascade control of retort chamber temperature
• Vacuum pumps for cold evacuation of the retorts before start of heat treatment, resulting in significant reduction in gas consumption during preflushing and time savings
• Cooling station, additional retort for increased productivity
• Customized dimensions of up to 3000 liters and load weights of up to 5000 kg
• Charging baskets and loading devices
• Catalytic or thermal afterburner systems for cleaning of the exhaust gasses caused from debinding

The N 100/CDB air circulation chamber furnace is used for the catalytic debinding of ceramic and/or metallic powder injection parts (CIM/MIM) using the BASF-Catamold© process. It is designed to allow the polyacetal-containing binders in the material to be cracked under the influence of nitric acid in the furnace atmosphere and carried out of the furnace using nitrogen as a carrier gas. The resulting exhaust gasses are burned using a two-stage torch with ionization monitoring. The gas supply and safety systems needed for the process are controlled by the PLC system.

• Tmax 150 °C
• Chamber air circulation furnace with inserted gas-tight stainless steel retort
• Furnace chamber with 80 liters volume, other sizes upon request
• Circulation fan, shaft seal with nitrogen flushing
• Dosing pump for nitric acid
• Silicone door seal
• Process gas supply with flow monitoring
• Automatic pre- and post-flushing
• Time-dependent debinding
• PLC system with monitoring of safety functions
• Sophisticated safety concept