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Vacuum Rotary Kiln

Vacuum Rotary Kiln

A vacuum rotary kiln is used for the heat treatment of high-purity powder materials under vacuum or controlled atmosphere, suitable for processes requiring high atmosphere purity and reaction stability.

The equipment employs a sealed rotary structure.During heating, the drum continuously tumbles the material, resulting in a more uniform reaction and reducing localized deviations.

Product Features (Vacuum Rotary Kiln)

  1. Ultra-high Purity Powder Heat Treatment

This vacuum rotary kiln is suitable for heat treating ultra-high purity powders, ideal for materials requiring extremely high purity.

  1. Sealed Rotary Tube Design for Excellent Atmosphere Integrity

The sealed rotary tube structure ensures that the furnace atmosphere does not escape and external contaminants cannot enter. In chlorination or reduction processes, the loss of high-value process gases such as hydrogen and hydrogen chloride is minimal, saving considerable operating costs.

  1. Intelligent Integrated Control System

The intelligent integrated control system synchronously controls the drum rotation speed, multi-level temperature zones, gas flow rate, and feeding/discharging actions. This ensures stable and controllable reaction conditions and optimized production efficiency.

  1. Multi-Temperature Zone Design Support

Multiple heating zones can be configured according to the process, enabling segmented reaction control.

  1. Low-Oxygen Design, Suitable for Reaction Materials

For oxygen-sensitive reaction materials, a low-oxygen design is employed, allowing the oxygen content inside the furnace to be controlled at extremely low levels, preventing material oxidation and ensuring product purity.

  1. Continuous or Intermittent Feeding System Available

A continuous or intermittent feeding system can be configured according to process requirements, flexibly adapting to different production scales and process characteristics.

Item1050℃ Model1250℃ Model1450℃ Model
Temperature1050℃1250℃1450℃
Long-term Working Temperature±1℃±1℃-
Furnace Tube MaterialStainless Steel Tube / Corundum TubeStainless Steel Tube / Corundum TubeCorundum Tube
Rotation Speed1-10 r/min, adjustable1-15 r/min1-15 r/min
Temperature Uniformity in FurnaceMulti-point temperature control available for higher requirementsMulti-point temperature control available for higher requirementsMulti-point temperature control available for higher requirements
Temperature Sensor & Measuring RangeNiCr-NiSi, 0-1350℃NiCr-NiSi, 0-1350℃Pt-Rh, 0-1700℃
Programmable Curve SegmentsGroup 1: 22 segments; Group 2: 8 segments; Group 3: 50 segmentsGroup 1: 22 segments, Heating rate: 1℃/h to 45℃/h≤45℃/h
Computer InterfaceRS485, RS232, USB

Application Areas (Vacuum Rotary Kiln)

  • Electronic Grade Quartz Purification: Suitable for the chlorination purification of high-purity quartz sand, removing impurities to achieve electronic or photovoltaic grade purity requirements.
  • Rare Earth Material Processing: It is suitable for high-temperature reactions such as reduction, nitriding, and carbonization of rare earth oxides and rare earth metal powders, ensuring the purity and activity of the products.
  • Semiconductor Material Preparation:It is suitable for high-temperature processing of semiconductor materials such as silicon powder, silicon carbide powder, and aluminum nitride powder, and can achieve ultra-high purity and pollution-free requirements.
  • High-Purity Metal Powders: Suitable for the reduction, deoxidation, and sintering processes of high-purity metal powders such as tungsten powder, molybdenum powder, and titanium powder.
  • Battery Materials: Suitable for high-temperature synthesis and surface modification of positive and negative electrode materials for lithium batteries; a protective atmosphere can be introduced to prevent material oxidation.
  • Catalyst Preparation: Suitable for the calcination and activation treatment of high-purity catalyst supports, meeting the purity and structure requirements of precision catalytic reactions.
  • New Material R&D: Suitable for pilot-scale R&D and mass production of high-end materials such as special ceramic powders, nanomaterials, and composite materials.
  • Universities and research institutes: Suitable for research on the preparation of ultra-high purity materials in majors such as materials science, metallurgical engineering, and chemical engineering.

Company Profile

A professional enterprise specializing in heat treatment technology services and the R&D, manufacturing, and sales of high-temperature electric furnaces.

The company focuses on developing high-temperature electric furnaces covering a full temperature range of -100℃ to 2600℃. Its products include experimental electric furnaces, vacuum atmosphere furnaces, industrial kilns, and medium-frequency induction heating equipment. Main products include box furnaces, tube furnaces, lifting furnaces, pusher kilns, bogie furnaces, rotary kilns, tunnel kilns, and various specialized medium-frequency furnaces.

The company adheres to technological innovation and has passed ISO9001 and EU CE certifications. It owns 21 registered trademarks, 29 patents, and 27 software copyrights.

Payment Methods

TT

Shipment Methods

The electric bottom-loading furnace is packaged in three layers: first wrapped in foam paper, then wrapped in plastic film, and finally packed in a wooden crat

Frequently Asked Questions (FAQ)

  1. What is a vacuum rotary furnace used for?

For the heat treatment of high-purity powders.

  1. Why is sealed rotation necessary?

Sealing ensures a pure atmosphere, and rotation ensures uniform heating of the powder, reducing contamination.

  1. Does it save gas?

Yes. The sealed design reduces the loss of expensive gases such as hydrogen and hydrogen chloride.

  1. How accurate is the temperature control?

High. Intelligent integrated control synchronously adjusts rotation, temperature, gas, and material feeding/discharging.

  1. Does it support continuous production?

Yes. Configurable with continuous or intermittent feeding systems.

  1. Can it achieve multiple temperature zones?

Yes. Multi-level thermal zoning with long residence time design.