High-quality workmanship, attractive design, durability, and excellent temperature distribution – these are the most important quality features of the N 100/G - N 2200/14 chamber furnace. Our extensive standard series addresses most customer needs.

• Tmax 900 °C, 1280 °C, 1340 °C or 1400 °C
• Five-sided heating with special arrangement of the heating elements for optimum temperature distribution
• Heating elements on support tubes resulting in long service life of the heating wire
• Protection of floor heating and flat stacking surface provided by embedded SiC plate in the floor
• High quality long lasting thermocouple, type S
• Door safety switch
• Multi-layer insulation with lightweight refractory bricks and special rear insulation
• Side walls and door double walled, side walls made of stainless steel (up to N 300..)
• Controlled air inflow, vapor vent in the kiln ceiling (from N 450 designed as flap)
• Self-supporting brick ceiling construction, arch-shaped
• Removable stand (up to N 300…)

Additional Features N 100/G - N 2200/14

• Customized dimensions
• Cooling systems for shortening cycles with manual or fully automatic control gear
• Automatic vapor vent flap control for better air outflow
• Stainless steel exhaust gas hoods
• Thermal or catalytic exhaust gas cleaning
• Customized kiln furniture
• Multi-zone control for an optimum temperature distribution
• Process documentation by temperature recorder or PC software

Besides our extensive line of electrically heated chamber kilns, we can also offer you gas-heated models, customized to your application. Please contact us for details.

Shuttle kilns provide a number of advantages when firing and sintering in production. The bogie can be loaded outside the kiln. When using several bogies, one bogie can be loaded while the other is in operation.

• Tmax 900 °C, 1280 °C, 1340 °C or 1400 °C
• Five-sided heating (two sides, door, rear wall, bogie)
• Bogie heating automatically makes contact when driven in
• Heating elements on support tubes resulting in long service life of the heating wire
• Flat stacking surface using SiC plate on the bogie
• Floor heating protected by SiC plates
• Multi-layer insulation with lightweight refractory bricks and special rear insulation
• Side walls and door double walled for good ventilation and low exterior temperatures
• Self-supporting brick ceiling construction, arch-shaped
• Special wheels so bogie can run on factory floor
• Adjustable air supply vent
• Manually operated vapor vent flap on roof of the furnace

Additional Features W 1000/G - W 7500/14

• Customized dimensions
• Additional bogie
• Second door instead of rear wall for charging from both sides
• Electro-hydraulic lift door
• Rails and iron wheels for heavy loads
• Electrically powered bogie
• Cross-traversal system with parking rails for switching bogies during rail operation
• Fan cooling with control system (the selected cooling profile is reached precisely with variable fan speed)
• Automatic vapor vent flap control
• Heat shield to minimize the radiation losses when the bogie has left the furnace
• Multi-zone control for optimum temperature distribution according to DIN 17052 up to ΔT 10 K
• Customized connected power rates
• Fully automated process control and documentation
• Customized kiln furniture
• Customized sizes up to 20 m³ and charge weights up to 20 tons

The easy loading and optimum sealing characteristics of this kiln are crucial advantages of top-hat kilns. Free access from three sides avails for integration into existing process flows.

• Tmax 1280 °C
• Optimum temperature distribution due to 5-side heating (4 sides and floor) and to good sealing characteristics of the top hat
• Specifications with respect to insulation, heating, etc. identical to chamber furnaces N 100 and up (see page 12)
• Hood driven electro-hydraulically
• Easy loading from three sides
• Working height of table 800 mm
• Customized versions, e.g. multi-table operation, cooling system etc.

To save time and power, these top-hat furnaces can also be equipped with mobile tables. These are moved manually on rails, or electrically upon request. The furnace design is tailored to the customer's needs.

• Furnace size tailored to process requirements
• 1-table or table switching systems are possible (see photo above)
• Table drive manually or automatically
• 5-sided heating, 4 sides and the table, is standard
• 6-sided heating optional for perfect temperature distribution

For sintering at temperatures above 1350 °C we recommend a furnace heated with SiC rods. The design as a top-hat furnace enables heating from 4 sides and results in extremely good temperature distribution.

• Tmax 1400 °C or 1500 °C
• High connected power rates for fast cycles
• Hood insulation made of fibre materials ensuring fast heating-up and cooling-down cycles with low energy consumption
• Table built of lightweight refractory bricks allowing heavy loads and a permanently level stacking surface
• Hood driven hydro-electrically to be opened and closed without any vibration
• Thyristor controlled heating system
• Fast heating-up time and optimal temperature distribution due to the hood being heated from 4 sides by SiC rods

The high-temperature furnaces have proved their excellence for many years now in producing technical ceramics. Optimum temperature distribution, very solid design and useful details provide for the necessary competitive edge with resprective quality.

Standard version, electrically heated (for gas heating, see page 21)

• Tmax 1600 °C, 1750 °C, or 1800 °C
• Furnace sizes from 4 to 450 liters
• High-quality molybdenum disilicide (MoSi2) heating elements
• Parallel swivel door, chain-guided, enabling safe opening and closing without damage to the fibre insulation in the collar area, protection of user from radiation from the furnace
• Door labyrinth sealing provides for optimum energy efficiency and temperature distribution
• Door area amored with stainless steel to avoid burn damages
• Reinforced floor as protection for bottom insulation as standard from models HT 32/16 upwards
• Over-temperature limit controller for product and furnace protection
• Furnace chamber lined with first-class, durable fibre material
• Special ceiling construction with high durability
• Long-lasting thermocouple, PtRh-Pt, Type B or Type S
• Vapor vent in the furnace roof

Besides our extensive line of electrically heated high-temperature chamber furnaces, we can also offer gas-heated models, customized to your application. Please contact us.

Additional Features

• Cooling fan For cycle time acceleration furnace sized specific fans are installed. The fan speed is preselected per segment. The controller is automatically switched on and off. Hence, different speeds can be applied e.g. for binder removal or cooling. With HiProSystems-Controllers, lenear cooling is possible.
• Air preheating Air preheating can also be used with our high-temperature furnaces. This allows the furnace to be used as a combi furnace for debinding and sintering in a single process (see also page 11).
• Start-up circuit A special circuit in the switchgear eliminates the problem of heating too fast when below 250 °C, typical for molybdenum disilicide heating elements, is eliminated. This feature is particularly recommended when firing ceramics which need sensitive handling in this temperature range.
• Automatic control of vapor vent flaps
• Customized furnace dimensions
• Stainless steel exhaust gas hoods
• Catalytic or thermal afterburners (see page 28)
• Kiln furniture
• Process documentation using temperature plotter or PC software
• Protective gas inlet and outlet, e.g. for reduction of oxygen content in exothermic debinding

In order to meet the challenging requirements of productivity and temperature distribution, the high-temperature furnaces HT 64/17 LT - HT 1440/17 LB are used. The design of the furnaces is tailored to customer's needs. From top-hat furnaces with fixed tables, to table switching systems, to fully automatic debinding and sintering systems with exhaust cleaning systems and with integrated safety systems to improve productivity and quality, we can also develop a solution for your application!

• Tmax 1750 °C or 1800 °C
• Design as top-hat or elevator furnace (lift-top or lift-bottom principle)
• Furnace sizes from 4 to 440 liters
• High-quality molybdenum disilicide (MoSi2) heating elements
• Electro-hydraulic hood drive for almost vibration-free movement
• Safe and tight hood closing due to labyrinth seal and additional sand cup
• Floor reinforcement with level stacking support to protect the fibre insulation and to carry heavy charges as standard from HT 16/16 upwards
• Over-temperature limit controller for product and furnace protection
• Furnace chamber lined with high quality durable fibre material
• Special ceiling construction, with high durability
• Long-lasting thermocouple, PtRh-Pt, type B

Technical data of /LT (Lift-Top) and /LB (Lift-Bottom) furnaces are identical

Additional Features HT 64/17 LT or /LB - HT 1440/17 LT or /LB

• Interchargeable table system Particularly for complex firing loads with long charging times, interchargeable table systems are recommended. Depending on customer requirements, also a fully automatic table exchange can be programmed, e.g. at night or on the weekend.
• Air-inlet ventilator To accelerate cycle times, fans adapted to the furnace size are used. The fan speed is preselected per segment. The controller is switched on and off automatically. Different speeds can thus be used e.g. for binder removal or cooling. Also, linear cooling can be used by setting the temperature gradient.
• Inlet-air preheating Inlet-air preheating can also be used with our high-temperature furnaces. The furnace can thus be used for both debinding and sintering in a single process (see also page 11).
• Start-up circuit A special circuit in the switchgear eliminates the problem of heating too fast when below 250 °C, typical for molybdenum disilicide heating elements, is eliminated. This feature is particularly recommended when firing ceramics which need sensitive handling in this temperature range.
• Customized furnace dimensions
• Stainless steel exhaust gas hoods
• Catalytic or thermal afterburners (see page 28)
• Process documentation by temperature plotter or PC software
• Protective gas inlet and outlet, e.g. for reduction of oxygen content in exothermic debinding