1200°C Compact Tube Electric Furnace with High-Purity Quartz Glass Tube

describe

The 1200°C compact tube furnace features a high-purity quartz glass tube, precise temperature control, and uniform heating for laboratory research, material synthesis, and heat treatment applications.

Product Features

Sealing flanges and valves

• The furnace is equipped with a specially designed stainless-steel sealing flange system engineered for reliable atmosphere control and vacuum processing applications. The custom-shaped tube sealing structure provides excellent airtightness and mechanical stability, ensuring consistent performance during high-temperature operations. Manufactured from corrosion-resistant stainless steel, the flange offers outstanding durability, long service life, and resistance to thermal deformation under repeated heating cycles.
• The flange assembly is configured with two independent gas inlet ports, one gas outlet port, and one dedicated vacuum port, providing exceptional flexibility for atmosphere management. The dual gas inlets allow different process gases, such as nitrogen, argon, hydrogen mixtures, or other protective gases, to be introduced individually or simultaneously according to experimental and production requirements. This configuration enables precise control of gas composition and flow distribution within the quartz tube chamber.
• The integrated gas outlet ensures efficient removal of residual gases and reaction byproducts, helping maintain a stable process atmosphere throughout the heating cycle. The dedicated vacuum interface allows rapid evacuation of the tube chamber prior to gas introduction, reducing oxygen concentration and minimizing contamination risks. This vacuum capability is particularly valuable for material synthesis, powder sintering, heat treatment, semiconductor research, battery material development, and other applications requiring controlled atmospheres.
• By combining robust stainless-steel construction, reliable sealing performance, multiple gas connections, and vacuum compatibility, the flange system significantly enhances operational flexibility and process accuracy. The design supports both vacuum and atmosphere-controlled experiments, providing a stable and secure environment for advanced laboratory research and industrial thermal processing applications.

Temperature profile setting

• The furnace is equipped with an advanced intelligent temperature control system designed to deliver exceptional accuracy, stability, and process flexibility. The controller supports multiple control modes, including standard PID, AI-based APID, and MPT algorithms, allowing users to select the most suitable regulation method for different thermal processes. With built-in self-tuning and self-learning capabilities, the system automatically optimizes control parameters, ensuring precise temperature regulation without overshoot or undershoot.
• The controller features 30-segment programmable operation, enabling users to create complex heating and cooling profiles with freely adjustable ramp rates and holding times. Temperature rise and fall can be controlled with customized slopes, making the system ideal for sintering, annealing, calcination, material synthesis, and other precision thermal treatments. A variety of programmable commands, including jump (loop), run, pause, and stop, provide enhanced process flexibility and allow operators to modify programs at any stage of operation without interrupting production.
• Utilizing an advanced AI-based adjustment algorithm with curve-fitting technology, the controller continuously analyzes process conditions and optimizes output performance in real time. This intelligent regulation ensures smooth temperature transitions, stable thermal curves, and highly uniform heating throughout the process. The result is improved product consistency, enhanced process repeatability, and reduced thermal stress on materials.
• Combining intelligent automation, precise temperature management, and user-friendly programmability, this control system provides reliable performance for demanding laboratory research, pilot-scale development, and industrial production applications requiring accurate and repeatable high-temperature processing.

control

• The furnace utilizes an advanced thyristor-based closed-loop power control system that supports phase-shift triggering and zero-crossing triggering technologies, enabling continuous adjustment of output voltage, current, and power. The system can operate in constant-voltage, constant-current, or constant-power modes, providing exceptional flexibility for a wide range of thermal processing applications. This intelligent power regulation ensures stable energy delivery and highly accurate temperature control throughout the heating cycle.
• A dual-loop control architecture is employed, consisting of an inner current loop and an outer voltage loop. This nested control structure allows the system to respond rapidly to load changes while maintaining excellent output stability. When sudden load variations occur or the load current exceeds the preset limit, the controller automatically restricts the output current within the rated operating range, protecting both the power regulator and the heating system from electrical stress.
• At the same time, the voltage loop actively participates in regulation, continuously adjusting system output to maintain stable current and voltage levels whenever sufficient control margin is available. This coordinated control strategy ensures smooth operation, minimizes fluctuations, and improves process consistency even under demanding operating conditions.
• By effectively preventing excessive current surges, voltage spikes, and abnormal load impacts, the system significantly extends the service life of heating elements and electrical components. The advanced closed-loop control technology delivers superior accuracy, fast dynamic response, and reliable protection, resulting in safer operation, improved process repeatability, enhanced energy efficiency, and outstanding long-term performance for laboratory research, material development, and industrial high-temperature applications.

thermal insulation materials

• The furnace is designed with a high-performance three-layer thermal insulation system, engineered to significantly improve energy efficiency and thermal stability during high-temperature operation. The insulation structure consists of 1200-grade aluminum silicate fiberboard, 1400-grade alumina fiberboard, and 1700-grade alumina (polycrystalline) fiberboard, forming a progressively enhanced heat-resistance barrier from the outer layer to the high-temperature inner chamber.
• Each insulation layer plays a specific role in minimizing heat loss and maintaining stable internal furnace conditions. The aluminum silicate fiberboard provides foundational thermal resistance and structural support, while the intermediate alumina fiberboard enhances heat containment and reduces thermal conductivity. The innermost polycrystalline alumina fiberboard delivers exceptional high-temperature resistance, ensuring reliable performance even under extreme thermal environments.
• This multi-layer insulation design effectively reduces thermal leakage and improves overall furnace efficiency. Compared to traditional electric furnaces, the system achieves energy savings of more than 80%, significantly lowering operational costs while maintaining excellent heating performance and temperature uniformity.
• In addition to energy efficiency, the insulation system also contributes to faster heating response, reduced heat storage, and improved cooling performance, allowing the furnace to reach target temperatures more quickly and safely. It also minimizes external surface temperature, enhancing operator safety and creating a more comfortable working environment.
• Overall, this advanced insulation structure ensures long-term durability, stable thermal performance, and outstanding energy-saving capabilities, making the furnace highly suitable for demanding laboratory research, industrial heat treatment, and precision material processing applications.

Configuration List

Application areas

• Ceramic sintering, heat treatment, and advanced material research under high-temperature controlled conditions.
• Powder metallurgy, alloy processing, and thermal analysis requiring stable and uniform heating performance.
• Laboratory research, university experiments, and industrial production involving high-purity material development and testing.

Why Choose Us

• Advanced furnace design ensures stable high-temperature performance and precise control accuracy.
• Multi-layer insulation system delivers outstanding energy efficiency and reduced operating costs.
• Professional customization and reliable technical support for diverse industrial and lab needs.

FAQ

Q1: What is the maximum operating temperature of this furnace?
A: The furnace is designed for high-temperature operation up to its rated limit, ensuring stable performance for advanced thermal processing.

Q2: What insulation system does the furnace use?
A: It uses a three-layer insulation structure combining aluminum silicate, alumina fiberboard, and polycrystalline alumina fiberboard.

Q3: How energy-efficient is the furnace?
A: The advanced insulation design reduces heat loss, achieving energy savings of more than 80% compared to traditional furnaces.

Q4: What applications is this furnace suitable for?
A: It is widely used in ceramic sintering, powder metallurgy, material research, and industrial heat treatment processes.

Q5: Can the furnace be customized?
A: Yes, chamber size, control system, and heating configuration can be customized according to specific requirements.