1250C Split Tube Furnace with 3 Inch Mullite Tube and Vacuum Sealing Flanges for Precision Thermal Processing

Product Overview

This high-performance thermal processing system is engineered for advanced material science and industrial R&D applications. By utilizing a split-able furnace design, the equipment provides researchers with effortless access to the processing tube, facilitating complex experimental setups and rapid sample throughput. Its primary value lies in its ability to maintain high thermal stability and precision while operating under vacuum or controlled atmosphere conditions up to 1250°C. This unit is an essential tool for laboratories requiring a balance between high-temperature capability and ease of operation, particularly in environments where tube maintenance and sample loading frequency are high.

Designed for versatility, this system is widely adopted in ceramics, metallurgy, and semiconductor development laboratories. The integration of high-purity mullite components ensures that samples are protected from contamination during critical heat treatment cycles. This equipment serves as a cornerstone for institutes requiring reliable, repeatable thermal environments for sintering, annealing, and chemical vapor deposition processes. The robust engineering ensures that it can handle the rigors of both continuous operation and rapid thermal cycling, providing a flexible platform for various material transformation studies.

Confidence in performance is guaranteed through a design that prioritizes safety and engineering excellence. The equipment features a double-layer steel casing with integrated air cooling to maintain a safe exterior temperature even during peak heating cycles. With high-purity fibrous alumina insulation and a specialized refractory coating, this system maximizes energy efficiency and extends the operational lifespan of the internal components. For procurement teams and lab managers, this unit represents a reliable, long-term investment in thermal processing infrastructure, backed by CE compliance and precision-tested thermal uniformity.

Key Features

• Longitudinal Split-Body Architecture: The heating chamber is designed to open lengthwise, allowing for the easy insertion and removal of the process tube and complex internal components without disturbing the sample alignment. This design also facilitates rapid cooling of the tube after high-temperature runs.
• Precision PID Temperature Control: The advanced controller utilizes Proportional-Integral-Derivative logic with an auto-tune function, offering 30 programmable segments for ramping, cooling, and dwelling with a high accuracy of ±1°C.
• High-Purity Domestic Mullite Processing Tube: Equipped with a 3-inch O.D. mullite tube, this system offers superior thermal shock resistance and chemical stability compared to standard quartz, making it ideal for processes involving reactive gases or higher continuous temperatures.
• Advanced Vacuum Sealing Technology: The unit includes a pair of stainless steel vacuum sealing flanges with integrated needle valves and vacuum gauges, ensuring high integrity for vacuum-driven or positive-pressure gas flow experiments.
• Energy-Efficient Thermal Insulation: High-purity alumina fiber insulation is used throughout the chamber to minimize heat loss, ensuring a more uniform constant temperature zone and reduced power consumption during long-duration cycles.
• Integrated Safety and Alarm Systems: Built-in over-temperature and thermocouple failure alarms provide critical protection for both the equipment and the samples, automatically halting the process if deviations occur.
• Enhanced Casing Cooling Mechanism: A dual-layer steel casing design incorporates active air cooling to keep the furnace surface temperature below 60°C, ensuring operator safety in crowded laboratory environments.
• High-Performance Alloy Heating Elements: The system utilizes Fe-Cr-Al alloy elements doped with Molybdenum, providing consistent heat distribution and exceptional durability at temperatures up to 1250°C.
• Versatile Atmosphere Control: The standard stainless steel flanges allow for the easy introduction of inert or reactive gases, supporting controlled atmosphere processing with a leak rate of less than 5 mtorr per minute.
• Expandable Digital Communication: Includes a default DB9 PC communication port, allowing for remote monitoring and data logging, which is essential for audit trails in research and quality control environments.

Applications

Technical Specifications

Core System Parameters (TU-24)

Processing Tube and Vacuum Capabilities

Control and Software Specifications

Standard Package Includes

• Alumina Foam Blocks (One Pair) for thermal isolation
• Complete Vacuum Flange Set for 80mm/3" diameter tube
• High-Purity Mullite Tube (O.D: 3'', Length: 40'')
• Hex Wrench Set for assembly and maintenance

Why Choose Us

• Superior Engineering Build: This system is constructed with premium materials, including USA-made mullite and high-purity alumina insulation, ensuring long-term thermal stability and operational longevity in industrial R&D environments.
• Exceptional Precision and Control: With ±1°C accuracy and a 30-segment programmable controller, researchers can execute complex thermal profiles with total confidence in repeatability.
• Unmatched Versatility: The split-furnace design combined with advanced vacuum and gas-flow capabilities makes this unit an adaptable tool for a wide variety of material science applications, from CVD to sintering.
• Safety-First Design Philosophy: Features such as the air-cooled double-layer casing and comprehensive alarm systems protect both the user and the integrity of high-value experimental samples.
• Global Compliance and Support: CE certification and the option for NRTL/CSA certification ensure that this equipment meets the highest international safety standards, supported by our responsive technical team.

For more information on the capabilities of this system or to request a custom configuration for your specific research needs, please contact our technical sales team for a formal quotation.