Maximum Temperature

1600°C

Continuous Operating Temperature

≤1550°C

Control Range

80 to 1700°C

Furnace Chamber Dimensions

4000 × 800 × 800 (mm)

Number of Loading Tables

Two

Temperature Sensor

Type B thermocouple, measuring range 200–1700°C

Temperature Control Points

Three control points (left, center, right)

Power

350 kW

Heating Element Installation Position

Surrounding (four sides)

Temperature Control Accuracy

±1°C (integrated circuit control, no overshoot)

Furnace Temperature Uniformity

±15°C (depending on chamber size)

Heating Rate

Adjustable. Below 1400°C: max. 10°C/min; above 1400°C: max. 5°C/min; minimum: 1°C/h

Heating Elements

1700type molybdenum disilicide (MoSi₂) rods installed around the chamber

Exhaust Ports

Three exhaust ports of Ø60 mm evenly distributed on the top of the furnace. Exhaust pipes: corundum tubes

Loading Table

Electric driven in/out, hydraulic lifting

Insulation Material

Side walls (four layers):

Layer 1: 1700type lightweight energysaving microporous foam ceramic hightemperature insulation material, thickness 120 mm

Layer 2: 1500type alumina fiber board (Juxing), thickness 50 mm

Layer 3: 1400type alumina fiber board, thickness 50 mm

Layer 4: 1400type alumina fiber board, thickness 50 mm

Layer 5: Zirconiumcontaining insulation cotton, thickness 100 mm

Furnace top (three arches):

Layer 1 (arch): 1700type lightweight energysaving microporous foam ceramic hightemperature insulation material, thickness 120 mm

Layer 2 (arch): 1600type alumina fiber board, thickness 50 mm

Layer 3 (arch): Ceramic fiber blanket, thickness 100 mm

Refractory Materials at Furnace Mouth

Four crossed steps:

Step 1: 1700type alumina hollow sphere bricks

Step 2: 1700type alumina hollow sphere bricks

Step 3: 1500type M28 bricks

Step 4: 1500type M28 bricks

Refractory Materials on Loading Table

Four crossed steps:

Step 1: 1700type alumina hollow sphere bricks

Step 2: 1700type alumina hollow sphere bricks

Step 3: 1500type M28 bricks

Step 4: 1500type M28 bricks

Furnace Outer Shell Temperature

Under continuous longterm operation, the outer shell temperature is less than room temperature +35°C.

Protections

Integrated modular control unit with high control accuracy. Dualloop control and dualloop protection, including protections against overshoot, overregulation, underregulation, broken thermocouple, phase loss, overvoltage, overcurrent, overtemperature, current feedback, soft start, etc.

Control Method

Closedloop SCR (thyristor) module triggering – phaseshift or zerocrossing control. Output voltage, current or power continuously adjustable, with constant voltage, constant current or constant power characteristics. Inner current loop and outer voltage loop – limits output current within rated range under sudden load or overcurrent conditions, ensuring stable operation and protecting heating elements from excessive current/voltage surges, achieving safe and reliable control and high accuracy.

Touch Screen

7inch touch screen for integrated control, displaying realtime voltage, current, and power. Chinese menu, temperature, segment number, segment time, remaining time, output power percentage, multiple heating process curve storage, historical curves and data reports, etc.

Standard Accessories

Two heating elements, two sets of electrode rods, one pair of crucible tongs, one pair of hightemperature gloves.

Warranty

Oneyear free warranty for the furnace. Heating elements are not covered.

Precautions

To avoid affecting the furnace service life, we recommend a maximum heating rate of less than 15°C/min (excessively fast heating at high temperatures will shorten the life of heating elements).

This elevator furnace does not have a vacuum sealing structure – DO NOT introduce flammable or explosive gases.

After using this elevator furnace for some time, small cracks may appear in the furnace chamber. This is normal and does not affect operation. They can be repaired with alumina coating.

Corrosive gases are not recommended. If highly corrosive gases such as S or Na compounds must be introduced, please inform us in advance so that the furnace chamber can be specially treated.

Do not allow hightemperature melt to leak onto the furnace bottom. Use a base plate or alumina powder isolation as a precaution.

The instrument should be placed in a wellventilated, dry area.