High Temperature High Pressure Tube Furnace XN-TH1000-H50LK – 1100°C, 4 MPa Positive Pressure, Nickel Alloy Tube Φ50 mm, ±1°C Accuracy | Xnergy

Name: High Temperature High Pressure (HTHP) Tube Furnace XN-TH1000 Series

Equipment Type: Laboratory High Temperature and High Pressure Tube Furnace with Nickel-Based Alloy Furnace Tube and Integrated Pressure Safety System

Product Code: XN-TH1000-H50LK / XN-TH1000-H60LK / XN-TH1000-H80LK

Product Description:

The High Temperature High Pressure (HTHP) Tube Furnace XN-TH1000 Series is a tube furnace specifically designed for high-temperature and high-pressure environments, capable of simultaneous operation at temperatures up to 1100 °C and positive tube pressures up to 4 MPa (at 600 °C). The equipment uses nickel-based alloy furnace tubes, which possess excellent high-temperature strength, oxidation resistance, and corrosion resistance, making them uniquely suited to the demanding thermal and mechanical conditions of high-pressure sintering, synthesis, and reaction experiments. Both ends of the furnace tubes are equipped with stainless steel KF flanges integrating precision pressure gauges and pressure relief valves to ensure the safety of high-pressure experiments. The system also supports negative-pressure (vacuum) operation down to 10 Pa via an integrated rotary vane vacuum pump, or down to 10⁻³ Pa with an optional diffusion pump, enabling vacuum–high-pressure cyclic experiments.

The control system is internationally advanced, featuring safety, reliability, simple operation, high temperature-control accuracy, good heat preservation, and high furnace temperature uniformity. The system can be operated under high positive pressure, vacuum, or protective/reactive gas atmospheres. As a result, the XN-TH1000 is widely used in research related to piezoelectric ceramics, ferroelectric and superconducting materials, magnetic materials, superhard materials, and other fields requiring simultaneous high temperature and high pressure conditions in universities, scientific research institutes, and industrial laboratories.

Main Functions and Features:

1. Simultaneous high-temperature and high-pressure operation — maximum working temperature 1100 °C with positive tube pressure up to 4 MPa at 600 °C, 2 MPa at 900 °C, and 1 MPa at 1000 °C, meeting the requirements of demanding high-pressure thermal reactions and synthesis processes.
2. High-performance nickel-based alloy furnace tubes — the furnace tubes are manufactured from high-temperature, high-pressure, and oxidation-resistant nickel-based alloys, capable of withstanding drastic temperature and pressure changes while maintaining structural integrity over long-term use.
3. Safe and reliable pressure system — stainless steel KF flanges with precision pressure gauges and pressure relief valves at both tube ends; automatic overpressure protection prevents pressure buildup beyond safe limits, safeguarding both operators and equipment.
4. Vacuum compatibility — configurable with a rotary vane vacuum pump (ultimate vacuum 10 Pa) or an optional diffusion pump (ultimate vacuum 10⁻³ Pa) to support high-purity atmosphere experiments or vacuum–high-pressure cyclic processes.
5. Alumina ceramic fiber insulation with PID programmable control — low heat capacity furnace lining with excellent insulation performance; 30-stage PID programmable temperature control with ±1 °C accuracy and self-tuning; over-temperature protection automatically cuts off the heating circuit.
6. Flexible tube diameter and heating zone customization — available in Φ50, Φ60, and Φ80 mm nickel alloy tube diameters; heating zone lengths of 300/440 mm are customizable to suit different sample volumes and process requirements.
7. Split-type structure — convenient for laboratory placement, sample loading, and long-term maintenance.
8. In-house development and manufacturing — equipment supports lifetime parts replacement and upgrade services.

Main Technical Parameters:

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

Application Areas:

• Piezoelectric ceramics — high-pressure sintering and thermal treatment of PZT and related piezoelectric materials requiring simultaneous high temperature and elevated pressure
• Ferroelectric and superconducting materials — synthesis and annealing of ferroelectric oxides and high-temperature superconductors under controlled high-pressure atmosphere
• Magnetic materials — high-pressure heat treatment of permanent magnets, soft magnetic materials, and magnetic oxide powders
• Superhard materials — high-temperature high-pressure synthesis of diamond-like carbons, cubic boron nitride (cBN), and other superhard material precursors
• High-pressure phase transition research — studying pressure-induced phase transitions in oxides, intermetallics, and geological minerals at elevated temperatures
• Solid electrolyte and battery material synthesis — high-pressure sintering of LLZO, LATP, and other solid electrolyte powders requiring dense, low-porosity microstructures
• Advanced ceramics and refractory materials — high-pressure densification sintering of alumina, zirconia, silicon carbide, and silicon nitride
• University, research-institute, and industrial laboratory experiments requiring simultaneous high temperature and high pressure conditions

Recommended Operating Procedure:

1. Verify all electrical, gas, and vacuum connections are properly installed before powering on the XN-TH1000. Confirm that the pressure relief valve, pressure gauge, and KF flange seals are in good condition and correctly assembled. 2. Power on the furnace and the PID temperature controller. Verify the pressure gauge, over-temperature alarm, and (if applicable) vacuum pump readiness signals are all normal. 3. Load the sample into a suitable sample holder or crucible, then insert into the nickel-based alloy furnace tube within the heating zone. 4. Install and securely tighten the stainless steel KF flanges at both ends of the furnace tube. Confirm all sealing surfaces and gaskets are clean and undamaged. 5. If operating under vacuum: start the rotary vane vacuum pump and evacuate the system to the target base pressure (ultimate 10 Pa); for lower pressures, engage the optional diffusion pump to reach ultimate vacuum of 10⁻³ Pa. Monitor the pressure gauge continuously. 6. If operating under positive pressure: connect the gas supply (Ar, N₂, or other process gas) through a pressure-reducing valve. Slowly increase the tube pressure to the target level, not exceeding the rated limits (4 MPa at 600 °C / 2 MPa at 900 °C / 1 MPa at 1000 °C). Confirm the pressure relief valve is properly set. 7. On the PID controller, program the target temperature profile (up to 30 stages), including heating rate (0–20 °C/min), hold temperatures (≤ 1100 °C), hold times, and cooling rate. 8. Initiate the heating program; PID + self-tuning control manages the temperature profile with ±1 °C accuracy. Continuously monitor the pressure gauge throughout the run. If pressure exceeds the rated limit for the operating temperature, immediately activate the pressure relief valve or vent the system. 9. After the program completes, allow the furnace to cool to a safe handling temperature before reducing system pressure to atmospheric, stopping the vacuum pump (if applicable), and opening the flanges to remove the sample. 10. After each run, inspect the nickel alloy tube, KF flange seals, pressure gauge, pressure relief valve, heating element, and vacuum pump for wear, deformation, or contamination.

Important Operating Notices:

• Never exceed the rated tube pressure for the operating temperature — the maximum positive pressure is 4 MPa at 600 °C, 2 MPa at 900 °C, and 1 MPa at 1000 °C. Exceeding these limits may cause catastrophic tube failure or flange ejection.
• The pressure relief valve must be correctly set and in good working order before every run — it is the primary safety device preventing overpressure accidents.
• Always confirm that all KF flange sealing surfaces are clean, undamaged, and correctly assembled before pressurizing the system.
• When feeding gas under pressure, always use a calibrated pressure-reducing valve on the gas cylinder. Increase tube pressure slowly and monitor the gauge continuously.
• Always wear appropriate PPE (safety glasses, face shield, high-temperature gloves, lab coat) when loading samples, pressurizing the system, or opening flanges after a run, especially while the furnace is still at elevated temperature or pressure.
• Allow the furnace to fully cool and the tube pressure to return to atmospheric before opening the KF flanges. Never open flanges while the system is pressurized.
• When operating with flammable or reactive gases (H₂, etc.) under high pressure, follow strict laboratory safety protocols for gas handling, leak testing, and exhaust ventilation. High-pressure flammable gas experiments require additional safety measures and proper facility ventilation.
• Inspect the nickel alloy furnace tube periodically for signs of deformation, surface oxidation, or mechanical damage. Replace the tube if any defects are found before further high-pressure operation.

Packaging & Storage:

The XN-TH1000 series ships fully assembled in split-type configuration, including the nickel-based alloy furnace tube (diameter per model selection, customizable), alumina ceramic fiber insulated furnace chamber, 0Cr27Al7Mo2 resistance wire heating element, N-type thermocouple, 30-stage PID programmable temperature controller with self-tuning and over-temperature alarm, stainless steel KF flanges with precision pressure gauges and pressure relief valves, integrated rotary vane vacuum pump (ultimate 10 Pa), and all standard connecting components. Optional diffusion pump for 10⁻³ Pa vacuum ships separately when ordered. Install on a stable laboratory floor in a clean, dry environment, away from corrosive atmospheres, with adequate clearance for the vacuum pump, gas lines, flange access, and operator movement. Connect gas cylinders with properly rated pressure-reducing valves and to a power supply matching local electrical standards. Disconnect power, depressurize, and isolate gas supplies when the equipment is not in active use. Inspect the nickel alloy tube, KF flange seals, pressure gauge, pressure relief valve, heating element, and vacuum pump periodically for wear, deformation, or signs of degradation.

Safety:

For research and industrial laboratory use only. This equipment operates at simultaneous high temperature and high pressure — strict adherence to all pressure limits and safety procedures is mandatory. Never exceed the rated tube pressure for the operating temperature (4 MPa at 600 °C / 2 MPa at 900 °C / 1 MPa at 1000 °C). The pressure relief valve must be correctly set and verified before every run. Always confirm that all KF flange seals are correctly assembled and undamaged before pressurizing. Never open flanges while the system is pressurized or at elevated temperature. Always wear appropriate PPE (safety glasses, face shield, high-temperature gloves, lab coat) during all operations involving pressure or elevated temperature. When operating with flammable or reactive gases under high pressure, follow standard laboratory protocols for gas handling, leak testing, and exhaust ventilation. Allow the furnace to fully cool and the tube to depressurize to atmospheric before opening flanges or handling samples. Inspect the nickel alloy tube, flanges, pressure gauge, and pressure relief valve before each run. Refer to the included user manual for complete safety and operating instructions.

Note: Specifications listed above are typical and for reference only. Actual performance — including maximum safe operating pressure at a given temperature — depends on the specific tube configuration, process gas, heating profile, and ambient conditions. The pressure–temperature ratings listed are for the standard nickel alloy tube configurations; consult our technical team before designing experiments that approach rated limits. The XN-TH1000 platform supports customization (tube diameter, heating zone length, vacuum pump configuration) to match specific research requirements. For researchers exploring related laboratory heat-treatment equipment, see also Xnergy’s related products: Molecular Pump Tube Furnace XN-TG600-S120CK1 (600 °C, high vacuum 6.67×10⁻³ Pa), Single-Zone Tube Furnace XN-T1200 (1200 °C standard atmosphere/vacuum), Dual Temperature Zone Tube Furnace XN-TG1100-S60LK2W (1200 °C dual-zone), Vacuum Tube Furnace XN-T1700-80 (1700 °C with rotary-vane vacuum pump), and the full Thermal Treatment Equipment category. For complete battery material research systems, see also Cathode Materials, Anode Materials, and Solid-State Electrolytes.