Model BF390-14 High-Temperature Bell Furnace

1. Equipment Name & Model: Model BF390-14 High-Temperature Bell Furnace

2. Technical Specifications & Basic Configuration

2.1 Rated Temperature: 1300℃

2.2 Maximum Temperature: 1400℃

2.3 Effective Chamber Dimension: 990mm×600mm×660mm (W×H×D)

2.4 Size of Setter Plate: 330×330mm (6 stacks)

2.5 Sagger Specification: Φ100×70mm (to be supplied by customer)

2.6 Equipment Capacity: 9 saggers per setter plate, 54 saggers per layer, total 8 layers, i.e. 432 saggers per batch

2.7 Max. Heating Power: 80kW

2.8 Number of Temperature Zones: 1

2.9 Heating Element: Silicon Carbide Rod (SiC Rod)

2.10 Furnace Temperature Uniformity: ±5℃ (no-load test, constant temperature at 1300℃ platform for 2 hours)

2.11 Temperature Control Accuracy: ±1℃ (holding at high-temperature platform)

2.12 Program Control: SCR control module

2.13 Lifting Method: Screw drive lifting system

2.14 Thermocouple Type: Type S

2.15 Temperature Control Mode: Imported intelligent temperature controller with PID auto-tuning function

2.16 Heating Rate: 0.5~5.0℃/min

2.17 Sintering Atmosphere: Air

2.18 Exhaust System: Exhaust port arranged on the top for waste gas discharge; the valve on exhaust pipe can automatically adjust opening degree.

2.19 Alarm & Protection: Acousto-optic alarm and protection functions for over-temperature, motor overload, over-travel and other faults.

2.20 Surface Temperature Rise: ≤40℃

2.21 Overall Reference Dimension: 2670mm×3250mm×3000mm (W×H×D), excluding exhaust pipe

2.22 Equipment Weight: Approx. 3500kg 2.23 Equipment Color: Light Grey

Furnace Chamber Design

The inner layer of the furnace chamber is lined with high-temperature resistant lightweight alumina products, and the outer layer adopts ceramic fiber insulation boards for auxiliary thermal insulation. Silicon carbide rods are used as heating elements, enabling a maximum temperature of 1400℃. The heating elements divide the furnace chamber into 3 small cavities to guarantee uniform temperature distribution throughout the whole chamber.

Material-Carrying Bogie

The bogie shell is fabricated from Q235A steel plate, and its interior is constructed with ceramic fiber boards and high-temperature resistant alumina products. Setter plates are laid on the top surface of the bogie for workpiece placement. The setter plates are made of premium high-temperature resistant heavy-duty materials, featuring excellent high-temperature resistance, corrosion resistance and high mechanical strength.

The bogie can move vertically via the lifting platform. When lowered to the bottom position, it can be transferred onto the extension platform in front of the equipment for convenient loading and unloading of workpieces. A double sealing structure is installed between the bogie and furnace opening: ceramic fiber blanket is adopted for inner sealing, and silicone rubber for outer sealing, to ensure the tightness of the entire furnace chamber.

We provide customers with high-quality bell furnaces, hot air furnaces, box furnaces, tube furnaces, vacuum furnaces, car bottom furnaces, rotary kilns, mesh belt furnaces, and pusher furnaces.

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