Vacuum Tube Furnace XN-T1700-80(400mm) – 1700 °C, MoSi₂, 400 mm Heating Zone, Integrated Vacuum Pump & Gas Flowmeter | Xnergy

Name: Vacuum Tube Furnace XN-T1700-80(400mm)

Equipment Type: Laboratory 1700 °C Single-Zone Vacuum Tube Furnace with Integrated Rotary Vane Vacuum Pump & Gas Flowmeter

Product Code: XN-T1700-80(400mm)

Introduction:

The XN-T1700-80(400mm) is a high-temperature vacuum tube furnace with a maximum temperature of 1700 °C and a continuous operating temperature of ≤ 1600 °C. The equipment adopts a single-temperature-zone design with a constant-temperature zone length of 400 mm. The heating element is a molybdenum disilicide (MoSi₂) rod, coupled with a B-type thermocouple and PID + SCR power control to achieve precise temperature control within ±1 °C. The furnace tube is made of high-purity alumina tubing (outer diameter 80 mm, inner diameter 74 mm, total length 1200 mm), equipped with stainless steel vacuum flanges at both ends, with a pressure range of -0.1 to 0.15 MPa. The furnace chamber is made of ceramic fiber material, providing excellent thermal insulation.

The temperature control system supports 30-step programmable heating and cooling curves, with an adjustable heating rate of 0–10 °C/min and over-temperature protection. The equipment comes standard with one float flowmeter (e.g., N₂ flow rate 25–250 ml/min, with customizable ranges available upon request) for controlling the protective atmosphere.

The integrated vacuum system is equipped with a rotary vane vacuum pump, with an ultimate vacuum level of -0.1 MPa (rough vacuum) and a pumping speed of 120 L/min. It also includes all connecting pipes and meets the requirements of conventional vacuum heat treatment.

Features:

• High-quality heating element — made of molybdenum disilicide (MoSi₂) rod; resistant to high temperatures and oxidation, long lifespan, suitable for long-term high-temperature operation
• Precise temperature control — PID + SCR power control combined with B-type thermocouple, achieving ±1 °C temperature control accuracy; 30-step programmable control for excellent process repeatability
• Vacuum and atmosphere compatible — standard stainless steel vacuum flange, pressure rating -0.1 to 0.15 MPa; equipped with vacuum pump achieving rough vacuum (-0.1 MPa); can be supplied with inert, reducing, or oxidizing atmospheres
• Adjustable flow rate — standard configuration includes one float flowmeter (e.g., N₂ 25–250 ml/min); flow range can be customized to meet user requirements
• Safety protection — equipped with overheat protection to prevent equipment damage from overheating
• Rapid vacuuming — vacuum pump pumping speed of 120 L/min quickly reaches the working vacuum level

Technical Parameters:

Part 1: Tube Furnace System

Part 2: Vacuum System

Values measured by Xnergy. Typical values for reference; not guaranteed unless otherwise specified.

Application Areas:

The XN-T1700-80(400mm) is suitable for various research and production scenarios requiring high temperatures below 1700 °C with vacuum or controlled atmospheres. Typical applications include:

1. Advanced Ceramics and Composite Materials

• Structural Ceramics — pressureless or atmosphere sintering of ceramics such as alumina (Al₂O₃), zirconium oxide (ZrO₂), silicon nitride (Si₃N₄), and silicon carbide (SiC)
• Ceramic Matrix Composites — densification heat treatment of fiber-reinforced ceramic matrix composites
• Transparent Ceramics — high-temperature sintering of ceramics such as yttrium aluminum garnet (YAG) and magnesium aluminum spinel

2. Powder Metallurgy and Refractory Metals

• Refractory Metals — vacuum sintering or hydrogen reduction sintering of metal powders such as tungsten, molybdenum, tantalum, and niobium
• Hard Alloys — high-temperature sintering of hard alloys such as tungsten carbide-cobalt (WC-Co)
• Metal Injection Molding (MIM) — debinding and high-temperature sintering of MIM parts

3. New Energy Materials

• Lithium-Ion Battery Solid Electrolytes — high-temperature sintering (1300–1600 °C) of oxide solid electrolytes such as LLZO and LATP
• Fuel Cells — co-firing of electrolytes and electrode materials for solid oxide fuel cells (SOFCs)
• Solar Cells — annealing of absorber layers in perovskite, CIGS, and other thin-film solar cells

4. High-Temperature Physical and Chemical Synthesis

• High-Temperature Solid-State Reactions — synthesis of metal oxides, composite oxides, borides, nitrides, and similar materials
• Crystal Growth — growth of high-temperature single crystals via flux methods or gas-phase transport methods
• Materials Phase Transition Research — studying the high-temperature phase transition behavior of materials under controlled atmospheres

5. Universities and Research Institutes

Used as a general-purpose ultra-high-temperature tube furnace for high-temperature experiments and research projects in materials science, physics, chemistry, and other related fields.

6. Special Heat Treatment

• Metal Heat Treatment — vacuum annealing and solution treatment of precision parts such as high-temperature alloys and stainless steel
• Glass and Electronic Materials — glass sealing, firing of electronic ceramic substrates

Recommended Operating Procedure:

1. Verify all electrical, gas, and vacuum connections are properly installed before powering on the XN-T1700-80. 2. Power on the furnace, vacuum pump, and gas flowmeter. Verify that the B-type thermocouple, LED display, mechanical vacuum pressure gauge, and over-temperature protection are operating normally. 3. Place the sample in a suitable high-temperature crucible or sample holder, then insert into the alumina tube within the 400 mm heating zone. 4. Close and seal the stainless steel vacuum flanges at both ends of the tube. 5. If operating under vacuum, start the rotary vane vacuum pump and evacuate the tube to the target rough vacuum level (-0.1 MPa, pumping speed 120 L/min). 6. If operating under controlled atmosphere, introduce the working gas (inert, reducing, or oxidizing) through the float flowmeter at the target flow rate (e.g., N₂ 25–250 ml/min). 7. On the temperature controller, program the target temperature profile (up to 30 steps), including heating rate (0–10 °C/min), hold temperatures (up to 1600 °C continuous / 1700 °C maximum), hold times, and cooling rate. 8. Initiate the program; the PID + SCR power control system manages the temperature profile with ±1 °C accuracy. 9. Monitor the furnace temperature, vacuum pressure gauge, and gas flowmeter throughout the run. 10. After the program completes, allow the furnace to cool to a safe handling temperature before releasing the vacuum or opening the flanges. The alumina tube and sample remain very hot for an extended period. 11. After the run, clean the furnace chamber and alumina tube as appropriate; inspect MoSi₂ heating rods and alumina tube for wear (these are consumable parts).

Packaging & Storage:

The XN-T1700-80(400mm) ships fully assembled with the alumina tube (OD 80 × ID 74 × total length 1200 mm), MoSi₂ heating rods, B-type thermocouple, LED display, 30-step programmable PID controller with SCR power control, ceramic fiber chamber, stainless steel vacuum flanges with mechanical pressure gauge at both ends, rotary vane vacuum pump (pumping speed 120 L/min), float gas flowmeter, and all connecting pipes and fittings. Install on a stable laboratory floor or workstation in a clean, dry environment, away from corrosive atmospheres, with adequate clearance for the heating elements, vacuum pump exhaust, and operator access. Disconnect the power supply when the equipment is not in active use. Inspect the MoSi₂ heating rods, alumina tube, B-type thermocouple, sealing flanges, vacuum pump, gas flowmeter, and PID controller periodically for wear, contamination, or signs of degradation. MoSi₂ heating rods and the alumina tube are consumable parts.

Safety:

For research and industrial laboratory use only. Do not exceed the maximum temperature (1700 °C) or sustain operation above the continuous working temperature (1600 °C) for extended periods — exceeding these limits may damage the MoSi₂ heating rods, alumina tube, and furnace chamber. Always wear appropriate PPE (safety glasses, high-temperature gloves, lab coat) when loading or unloading samples, especially while the furnace is still hot. Allow the furnace to cool to a safe handling temperature before opening the vacuum flanges — surface temperatures up to 1700 °C and post-run residual heat can cause severe burns. Do not exceed the pressure rating of the vacuum flanges (-0.1 to 0.15 MPa). When operating with controlled atmosphere or vacuum, follow standard laboratory protocols for inert/reducing/oxidizing gas handling and vacuum-system operation. When processing samples that may release toxic, corrosive, or reactive byproducts, exhaust the furnace tube outlet to a fume hood or scrubber, and ensure the vacuum pump exhaust is also properly vented. MoSi₂ heating rods are brittle and temperature-sensitive; handle with care during installation, removal, or replacement to prevent fracture, and avoid rapid thermal cycling that could shorten element service life. Refer to the included user manual for complete safety and operating instructions.

Note: Specifications listed above are typical and for reference only. Actual performance depends on the specific sample material, atmosphere, heating profile, and ambient operating conditions — consult published literature and our technical team for guidance on specific high-temperature vacuum tube furnace heat-treatment, sintering, and synthesis protocols. The XN-T1700 platform supports customization (tube diameter, heating zone length, flow range, vacuum pump options) to match specific research requirements. For researchers exploring related laboratory heat-treatment equipment, see also Xnergy’s related products: Single-Zone Tube Furnace XN-TG1600-L60CB1W (1600 °C LCD touch-screen version), Single-Zone Tube Furnace XN-T1200 (1200 °C version), and the full Sintering Furnaces category, Drying equipment category, and Coating equipment category. For complete electrode formulation systems, see also Cathode Materials, Anode Materials, Binders, and Current Collectors.