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    PRODUCTS Current position:HOME > PRODUCTS > 1.Tube Furnaces

High temperature and high pressure furnace (double head 1200°C)

Release time:2020-11-04  viewed:189


Equipment Profile:
Nbd-hp1200-50ity mini high pressure furnace, installed on the flange of the high pressure solenoid valve and pressure sensor, so when the pressure inside the cavity is higher than the set value, the solenoid valve will automatically open the exhaust, so that the air pressure inside the tube reaches the set value.
This type can heat treat the sample under high pressure atmosphere gas environment, the highest temperature up to 1150℃.
Suitable for the exploration and research of superconducting and dielectric materials;





1. Annular heater with uniform temperature field;
2. Modular structure, durable and easy to maintain;
4. Stable voltage setting, safe and reliable;
5. Simple and convenient operation with one key, 15 working curves can be stored in advance for free use;
6. Real-time sintering temperature and power monitoring, safe and power-saving;



Electrical specifications

AC220V   1.5KW

Tmax vs pressure

The temperature depends on the air pressure. Please refer to the following table for details:

furnace temperature 

max pressure

≤ 600°C

≤ 24MPa

≤ 800°C

≤ 20MPa

≤ 900°C

≤ 12MPa

≤ 1000°C

≤ 6MPa

≤ 1100°C

≤ 4MPa

High temperature and high pressure pipe belongs to consumable material, when you find that it has deformation, please replace it in time.

                 tube size

1. Size: 50 mm O.D * 14 mm I.D L constant temperature zone Φ 36 mm * 600 mm * 120 mm
2.1/4NPS internal thread interface is installed on both sides of the furnace tube flange
Note: The high temperature and high pressure reaction tube belongs to consumables and is not covered by the warranty.

structure of furnace


1. Double-layer structure can be opened, which is beneficial to customers who need rapid cooling. The surface temperature of the shell is less than 60℃
2. The inner furnace surface is coated with nano high temperature alumina coating to improve the heating efficiency of the equipment.
3. The furnace body is designed as an open type, with convenient loading of materials and replacement of furnace pipe;

  • Gas and crucible are available


1. Oxidizing, protecting atmosphere and inert gases such as N2, Ar and He.
2. In order to avoid contamination of samples, it is better to wrap the samples with gold foil or nickel foil, put them into alumina or quartz boat, and then put them into the furnace tube for sintering. Do not put the samples directly into the high-temperature and high-pressure tube without crucible.

control system


1. 15 temperature curves can be stored in advance, and 30 "temperature-time" axes can be set for each curve to avoid the trouble caused by repeated setting of different experimental processes;
2. It has functions of overtemperature and overpressure alarm, couple breaking prompt, leakage protection, differential pressure relief and so on.
3. Nbd-101e embedded operating system graphical interface in English and Chinese, 7-inch true color touch screen input, intelligent man-machine dialogue mode, real-time heating power display, nonlinear style temperature correction;

temperature precision

+/- 1℃

size and net weight

800 x 450 x 350mm   45KG

heating elements


  • Ferro chromium doped aluminum alloy

Pressure detection and control



1. The high-pressure chamber is equipped with a pressure sensor, which is connected with the control system for real-time display
2. Install the high pressure relief solenoid valve on the flange, when the air pressure in the furnace tube is higher than the set pressure value, the solenoid valve will automatically open the deflated, cavity pressure maintained in the set pressure range.
The maximum automatic relief pressure that the solenoid valve can bear is 15Mpa. When the pressure is higher than 15Mpa, the solenoid valve cannot be used for relief. The method of serial stitching should be closed and manual relief should be adopted.

Flanged seal



1. CF flange structure drawing is as follows (red copper sealing ring is adopted)
2.1/4NPS internal thread connection is installed on the furnace tube flange, and a high pressure valve is installed at each end of the flange. The right end valve is equipped with pressure gauge.
3. The flange is sealed with an oxygen-free copper sealing ring;
4. Torque wrenches are available to avoid excessive fastening of the flange.


The company's high temperature and high pressure furnace tubes are made of high temperature alloy steel, the highest temperature resistance is 1150℃, good ductility.
When misoperation makes the air pressure in the cavity exceed the maximum allowable value (beyond the long-term strength of the alloy tube), the alloy tube will creep and bulge at the weak point before the gas is released by cracks.
No high pressure brittle danger!

after-sales service

1 year warranty, providing lifetime support (the warranty does not cover consumable parts, such as furnace tubes and sealing rings)


This site product introduction content (including product pictures, product description, technical parameters, etc.), for reference only.
There may be some difference between the content and the actual situation due to the late update, please contact the customer service staff of the company for confirmation.
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