1500℃ High Temperature Vacuum Tube Furnace

· Power Supply of vacuum tube furnace: AC 220V 50/60Hz

· Power Consumption of vacuum tube furnace: 2.5kW

· Maximum Temperature of vacuum tube furnace: 1500°C (<30 minutes)

· Continuous Operating Temperature: 1450°C

· Heating Elements: Imported Silicon Carbon Rods

· Recommended Heating Rate: ≤10°C/min below 1400°C, ≤5°C/min above 1400°C

· Thermocouple: S-type

· Heating Zone Length: 150mm

· Double-shell construction with air cooling system.

· Furnace chamber constructed of high-purity polycrystalline alumina fiber with an alumina coating to minimize energy loss.

· Door-opening power-off function enhances experimental safety.

· Material: Corundum tube.

· Dimensions: Ø50mm outer diameter * Ø40mm inner diameter * 700mm length.

· To prevent heat loss through radiation, a pipe plug must be placed inside the furnace tube before heating (pipe plugs are standard).

· Two sets of stainless steel sealing flanges are standard with the furnace tube.

· A mechanical pressure gauge with a range of -0.1-0.15 MPa is installed on the inlet flange to monitor the pressure inside the furnace tube. A Ø6.35mm compression fitting serves as the air inlet, with air flow controlled by a stainless steel needle valve.

· The outlet flange includes an outlet port for an Ø8mm pagoda nozzle, with air flow controlled by a stainless steel needle valve. To evacuate the furnace tube, connect the outlet port to a vacuum pump via a vacuum rubber hose.

· To achieve a high vacuum level more quickly, we recommend using a KF25 vacuum flange, stainless steel bellows, and a digital vacuum indicator.

· Model: VRD-8

· Pumping Rate: 2.2 L/s

· Motor Power: 370 W

· Ultimate Pressure: 5 × 10-1 Pa (without load)

· Actual Pressure: ≤ 2 Pa (with furnace tube and sealing flange installed, mechanical pumping for 20 minutes under cold conditions)

· For higher vacuum levels (10-5 tor or better), domestic or imported high vacuum units are available.

· Includes a YD518P temperature controller;

· PID automatic temperature control system;

· Intelligent 30-step programmable control;

· Built-in overheat protection and thermocouple fault alarm;

· Temperature Control Accuracy: ±1°C;

· Default DB9 PC Communication Port;

· MET Certified;

· Optional PC Temperature Control Software (for the YD518P series controller) for controlling temperature curves and exporting data.

Special Notes of high temperature tube furnace:

1. Consumables such as heating elements, quartz tubes, and sample crucibles are not included.

2. Damage caused by the use of corrosive and acidic gases is not covered by the warranty.

The pressure inside the furnace tube must not exceed 0.02MPa (relative pressure).

Because the internal pressure of the gas cylinder is high, a pressure reducing valve must be installed on the cylinder when introducing gas into the quartz tube. To ensure safety, it is recommended to use a pressure below 0.02MPa. We recommend purchasing a pressure reducing valve from our company. Our pressure reducing valve has a range of 0.01MPa-0.1MPa, which provides greater accuracy and safety.

For dry sample heating experiments, it is not recommended to close the exhaust and inlet valves on the furnace tube flange. If the gas valve needs to be closed to heat the sample, always monitor the pressure gauge. If the pressure reading is greater than 0.02 MPa, immediately open the vent valve to prevent accidents (such as furnace tube rupture, flange flying, etc.).

We do not recommend the use of flammable, explosive, or toxic gases. If the customer's process requires the use of flammable, explosive, or toxic gases, please implement appropriate protective and explosion-proof measures. We are not responsible for any problems caused by the use of flammable, explosive, or toxic gases.

The gas flow rate should be less than 200 sccm (200 ml/min).

Due to the manufacturing process of the alumina tube, there is a risk of tube breakage during the sintering process. This cannot be completely avoided. Please be aware of this.