1200°C Debinding & Pre-Sintering Atmosphere Furnace With Cold Trap

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1200°C Debinding & Pre-Sintering Atmosphere Furnace With Cold Trap

The GCF-DS 1200 Series is designed to perform binder burnout and pre-sintering in one continuous, uninterrupted cycle.

The furnace chamber is constructed from high-purity alumina and heated from five sides—front, back, left, right, and bottom. Each heating zone operates on an independent control loop with its own Type S thermocouple, providing precise temperature control and excellent thermal uniformity. A double-walled steel housing reduces heat loss to the exterior, while the sealed inner shell allows the chamber to be purged with protective gas.

Heating elements are installed inside corundum sheath tubes rather than being exposed directly to the furnace lining. This design prevents binder off-gases from contacting the heating wire and allows individual elements to be replaced without disturbing the chamber. Additional perforated corundum tubes distribute atmosphere gas evenly throughout the working area.

Furnace operation is managed through a touchscreen HMI featuring a 30-segment programmable PID controller, USB data export, and power-failure recovery. If power is interrupted, the controller resumes the program based on the furnace’s actual temperature rather than restarting the heating ramp from ambient.

Low-Temperature Stage
Forced hot-air circulation maintains a uniform temperature field during binder burnout, helping prevent localized hot spots that can crack or damage green bodies.

High-Temperature Stage
Five-sided radiant heating provides the temperature uniformity required for consistent pre-firing and sintering performance.

Handling the Off-Gas

Binder off-gas can be flammable and should not be discharged untreated.

Cold Trap
The cold trap can be charged with dry ice, an ice-water mixture, or liquid nitrogen. Binder vapor condenses on the inner wall for clean collection while helping prevent vapor from reaching the vacuum pump. Custom trap sizes are available upon request.

Exhaust Ignitor
The exhaust ignitor burns off flammable gases at the outlet. A flame monitor confirms successful ignition and illuminates the green indicator lamp. If ignition fails, the system sounds an alarm, illuminates the yellow indicator lamp, and automatically closes the inlet solenoid valve.

Features

• Five-sided heating with 5 independent control loops and 5 Type S thermocouples for uniform temperature distribution.

• Hot-air circulation for low-temperature rebinding.

• Five-sided radiant heating for pre-firing and sintering.

• Hot-air circulation and radiant heating can be combined in a single program.

• Suspended resistance-wire design for faster heat transfer and more responsive temperature control.

• Heating elements protected by corundum tubes against binder off-gas.

• Tool-free heating element maintenance and replacement.

• Multiple perforated corundum tubes provide uniform atmosphere gas distribution throughout the chamber.

• High-purity alumina chamber.

• Double-walled steel housing with a sealed inner shell for protective gas operation.

• Microprocessor-based, self-tuning PID temperature control.

• Minimal temperature overshoot for optimized thermal processing.

• 30-segment programmable recipes.

• USB data export capability.

• Cold trap included as standard.

• Exhaust ignitor included as standard.

• Long-life Type S thermocouples.

Safety

• Overheat protection automatically shuts down the furnace if the temperature exceeds the acceptable range.

• Automatic shutdown if a thermocouple breaks or malfunctions.

• Main AC contactor opens during an overheat or thermocouple fault.

• ON indicator turns off and OFF indicator illuminates during a safety shutdown.

• Door interlock limit switch de-energizes the heating circuit whenever the lid is opened.

• Ignitor flame monitoring provides automatic gas shutoff if ignition fails.

• Power failure protection allows the furnace to resume operation from the point of interruption once power is restored.

Applications

Integrated debinding and pre-sintering of fine ceramic components in aluminum nitride (AlN), silicon nitride (Si₃N₄), alumina (Al₂O₃), zirconia (ZrO₂) and dielectric ceramics.

Also used for debinding, pre-firing and sintering of ceramic powder feedstocks, magnetic materials, low-temperature co-fired ceramics (LTCC), multilayer ceramic capacitors (MLCC), NTC thermistor elements, ceramic cores, other electronic components, and powder metallurgy and metal injection molded (MIM) green parts.