Laboratory Pit Type Furnaces

Pit-type sealed retort furnaces feature a vertically oriented cylindrical design with a secure sealing mechanism at the top to maintain heat and atmospheric conditions throughout the process cycle. The workpiece or charge is placed inside the retort, which serves as the furnace chamber, and is heated externally using electric heating elements.

Such pit furnaces are employed in general engineering and metallurgical processes including carburizing, nitriding, carbonitriding, nitrocarburizing, hardening, tempering, and annealing. They are also utilized in process industries such as coal tar processing and the extraction of titanium and magnesium from ores.
 
Specialized processes like aluminum and titanium heat treatment can also be performed. In process industries, these lab pit type furnaces are suitable for high-pressure applications with temperatures between 800°C and 1200°C and pressures ranging from 400 mm water column to 9 bar. They are frequently installed in pits to optimize space utilization and facilitate easy loading and unloading of charges.
 
These are designed for operation within controlled atmospheres, featuring inlets to facilitate the diffusion and distribution of cracked ammonia, hydrogen, LPG, methanol, argon, nitrogen, and other process gases.
 
Facerom also designs and installs fully automated process plants, enabling automated management of temperature control, fluid dissociation, gas penetration, and dosing.

Pit Type Furnace Applications

The Facerom Pit Type Furnace is a high-efficiency batch furnace equipped with a robust recirculation fan and carefully designed internal baffling to achieve superior temperature uniformity. Engineered for precision and flexibility, it is well-suited for various heat treatment applications, including:

• Annealing
• Carburizing
• Neutral Hardening
• Nitriding
• Carbonitriding

And additional processes that demand tightly regulated atmospheric conditions throughout heating and quenching.

Pit Type Furnace Technical Specifications

• Maximum Temperature: 900°C
• Operating Temperature: 400°C – 800°C
• Load Capacity: up to 4,000 kg

Atmosphere Control: Nitrogen-shielded atmosphere ensures consistent quality and reduces oxidation.

Application: Ideal for wire rod annealing and a wide range of other industrial heat treatment processes.

Pit Type Furnace Key Benefits

• Durable design engineered for demanding industrial use.
• Accurate temperature regulation ensures consistent and uniform heat treatment outcomes.
• Consistent nitrogen atmosphere shielding to maintain material integrity.

Versatile process capabilities to accommodate a variety of heat treatment requirements.

The Facerom Pit Type Furnace is engineered for dependable, efficient, and consistent operation, aligning with modern metallurgical standards while minimizing operational expenses.