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Openable vertical tube furnace 1200℃

Release time:2017-09-28  Number of views:4566

Equipment introduction:

Vertical tube furnace adopts vertical tube placement, furnace heating wire ring distribution structure design, can be used in small steel parts quenching, annealing, tempering heat treatment, and vertical CVD coating etc. The equipment can be operated in atmosphere state, vacuum state, can also be used as a common tubular furnace, suitable for university laboratories and scientific research institutes and other units.









1. The heating wire is annular distributed inside the furnace, which encircle the furnace tube 360 degrees to improve the temperature uniformity in the furnace;

2. High purity Al2O3 fiber refractory insulation material, insulation effect is superior, effectively reduce the power consumption of equipment;

3. The furnace adopts double-layer air-cooled structure technology, which helps to reduce the surface temperature of the shell;

4. Adopt intelligent PID fuzzy temperature control, 7 inch touch screen centralized control, can intuitively display the "time-temperature" curve;

5. Integrated water-cooled flange is adopted to prevent flange overheating from damaging the sealing ring and fully ensure the tightness of the equipment;

6. The self-developed electromagnetic suspension trip technology is used to realize the fast quenching treatment of materials.





Electrical Spec

AC220V  1.2KW

AC220V  1.5KW

AC220V  1.8KW


1200 ℃ 

1500 ℃ 

1700 ℃ 

Max working temps.

1150 ℃

1450 ℃

1650 ℃

Heating rate

≤  20 ℃/min

Heating length


Tube size




Control system


1, sintering process curve setting: dynamic display setting curve, equipment sintering can prestore multiple process curves, each process curve can be set freely;
2, can be booked sintering, unattended sintering process curve sintering;
3, real-time display of sintering power and voltage information and record sintering data, and can be exported to achieve paperless record;
4, with remote control, real-time observation of equipment status;
5. Temperature correction: the difference between the main control temperature and the sample temperature, and the whole sintering process is nonlinear correction.

Temp Accuracy

+/- 1 ℃

Heating element



Sealing system




Vacuum degree: ≤10Pa (mechanical pump)

Pressure measurement & monitoring


The mechanical pressure gauge with damping oil is used to produce damping when the pressure fluctuates and reduce the pointer to swing back and forth.

Gas supply system


Float flowmeter is used to control the flow rate of gas, integrated with the equipment, and the leakage test has been carried out before leaving the factory.


1. When the furnace temperature of the equipment is greater than or equal to 300℃, it is forbidden to open the furnace to avoid injury;

2. When the equipment is in use, the pressure in the furnace tube shall not exceed 0.125MPa (absolute pressure) to prevent damage to the equipment caused by excessive pressure;

3. When used in vacuum, the operating temperature of the equipment shall not exceed 800℃.

4. The internal pressure of the gas supply cylinder is high, and when the gas is fed into the furnace tube, the pressure reducing valve must be installed on the cylinder. It is recommended to choose a small pressure reducing valve for test, and the measuring range of the valve is 0.01MPa-0.15MPa, which will be more accurate and safe in use.

5. When the temperature of the furnace body is higher than 1000℃, the furnace tube can not be in a vacuum state, the pressure in the furnace tube and atmospheric pressure, maintain in the state of atmospheric pressure;

6. Long-term use temperature of high purity quartz pipe ≦1100℃

7. During the heating experiment, it is not recommended to close the suction valve and intake valve at the flange end of the furnace tube. If it is necessary to close the air valve to heat the sample, always pay attention to the indicator of the pressure gauge. The absolute reading of the pressure gauge should not be greater than 0.15MPa, and the exhaust valve must be opened immediately to prevent accidents (such as furnace pipe rupture, flanges flying out, etc.).


1 year warranty with lifetime support (The warranty does not include consumable parts, such as furnace tubes and sealing rings).


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