Three Zone Rotary Tube Furnace with Automatic Powder Feeding for Large Scale CVD Coating 1100C

Product Overview

This high-capacity rotary thermal processing system represents a significant advancement in material synthesis and large-scale powder treatment. Designed primarily for the synthesis of inorganic compounds and specialized chemical vapor deposition (CVD) processes, the equipment provides a robust solution for researchers and manufacturers seeking to scale up production without compromising on material quality. The unit features an expansive 15-inch internal diameter quartz tube, allowing for batch volumes of up to 30 liters, making it an ideal choice for the development of high-energy battery materials and advanced ceramics.

In industrial R&D environments, the ability to maintain consistent thermal environments across large volumes is critical. This system utilizes a three-zone heating configuration to ensure an exceptionally stable isothermal region or to create precise temperature gradients as required by the specific reaction kinetics. The integration of a gear-driven rotation mechanism ensures that powders undergo a 'blending' type of processing, which effectively eliminates the thermal lag and concentration gradients often found in static processing environments. Whether used for pilot-scale production or demanding material science research, this unit delivers the reliability and performance necessary for high-stakes industrial applications.

Engineered with a focus on durability and operational efficiency, the equipment features a splittable furnace body with electric opening and closing functions, facilitating rapid cooling and easy access to the processing chamber. The use of high-purity alumina fibrous insulation and Silicon Carbide (SiC) heating elements ensures both energy efficiency and long-term stability under continuous high-temperature operation. By combining automated powder delivery with precise atmosphere control, the system offers a complete turnkey solution for the production of cathode and anode powders, silicon-nanolayer-embedded graphite, and other specialized nano-materials.

Key Features

• Three-Zone Precision Heating: The furnace is equipped with three independently controlled heating zones, each 330mm in length, providing a total heated length of 1000mm. This configuration allows for the creation of a 600mm constant temperature zone with a ±5°C tolerance, ensuring uniform thermal exposure for all material inside the tube.
• Large-Scale Processing Capacity: Featuring a high-purity quartz tube with a 400mm outer diameter and a 15-inch inner diameter, the system is capable of processing up to 30 liters of powder per batch, bridging the gap between laboratory research and industrial production.
• Integrated Powder Blending Mechanism: The gear-driven tube rotation, adjustable from 3 to 10 RPM, works in tandem with internal stirring blades welded inside the quartz tube. This mechanical agitation ensures the powder is sintered or coated fully and evenly, preventing agglomeration and enhancing reaction efficiency.
• Automated Powder Management: The unit includes specialized automatic powder feeding and receiving systems. Utilizing vacuum pressure differentials, the feeder delivers raw material into the processing tube under controlled conditions, while the electric-driven tilting mechanism (0-15°) facilitates the efficient collection of processed powders.
• Advanced Atmosphere Integrity: A magnetic fluid seal is employed on the rotating flanges, guaranteeing that the front end of the flange remains stationary while the tube rotates. This ensures a hermetic seal for processing under controlled atmospheres or vacuum, which is critical for sensitive CVD applications.
• Splittable Furnace Architecture: The electric opening and closing function of the furnace body allows for easy maintenance of the heating elements and the quartz tube. This design also enables accelerated cooling rates, significantly reducing cycle times in high-throughput environments.
• Superior Thermal Insulation: The high-purity alumina fibrous insulation structure is designed for maximum energy saving, minimizing heat loss to the exterior and maintaining a stable internal temperature profile even during long-duration continuous operation.
• Robust Heating Elements: The use of Silicon Carbide (SiC) heating elements provides excellent resistance to thermal shock and chemical degradation, ensuring easy repair and replacement while maintaining consistent performance at temperatures up to 1100°C.

Applications

Technical Specifications

Why Choose Three Zone Rotary Tube Furnace

• Industrial Scale Ready: This system is specifically engineered to move processes from the lab bench to pilot production, offering a massive 15-inch internal diameter and 30L capacity that few competitors can match.
• Unmatched Thermal Precision: The three-zone configuration combined with advanced PID control ensures that every gram of material is subjected to the same thermal history, a necessity for high-performance battery materials.
• Integrated Process Automation: By combining powder feeding, stirring, rotating, and tilting into a single automated workflow, this unit significantly reduces labor costs and human error in complex CVD processes.
• Premium Build Quality: From the magnetic fluid seals to the SiC heating elements and alumina fiber insulation, every component is selected for its ability to withstand the rigors of continuous industrial operation.
• Customizable Gas Environments: With optional multi-channel gas mixing systems, the furnace can be tailored to handle a wide variety of reactive and inert atmospheres for complex material synthesis.

To discuss how this advanced rotary thermal system can optimize your powder production or to request a detailed technical quotation, please contact our engineering team today.