# Multi-Zone Tube Furnace

The Multi-Zone Tube Furnace is an advanced thermal processing device specifically designed for materials science and nanotechnology, supporting dual-zone, triple-zone, or five-zone independent temperature control with a maximum temperature of 1600°C. 

It features a high-purity alumina polycrystalline fibre furnace chamber, equipped with molybdenum resistance wires, silicon carbide rods, or silicon molybdenum rods as heating elements. The furnace tube is available in high-purity quartz (1200°C) or alumina (1400°C, 1600°C). Supports high vacuum (7×10⁻⁴ Pa, molecular pump) and inert atmospheres (N₂, CO₂, Ar), with 304 stainless steel double-seal flanges to ensure a pure heat treatment environment.

This furnace model adopts a 30-segment programmable intelligent control system with a temperature control accuracy of ±1°C, suitable for sintering, debinding, heat treatment, and chemical vapour deposition (CVD) processes, particularly ideal for the preparation of carbon nanotubes, silicon nanowires, and lithium battery materials. It is widely used in laboratories and small-scale production in universities, research institutes, and industrial and mining enterprises.

## 1200°C Dual-Zone Tube Furnace

| Model | Furnace Tube Diameter × Heating Zone Length (mm) | Power (kW) | Maximum Temperature (°C) | Operating Temperature (°C) | Temperature Zones | Thermocouple Type | Furnace Tube Material | Heating Element |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| CV-12NT-40/220-2 | 40 × 220 × 220 | 5 | 1200 | 1100 | 2 | K-type | Quartz tube | Molybdenum resistance wire |
| CV-12NT-60/220-2 | 60 × 220 × 220 | 5 |  |  |  |  |  |  |
| CV-12NT-80/220-2 | 80 × 220 × 220 | 6 |  |  |  |  |  |  |
| CV-12NT-100/300-2 | 100 × 300 × 300 | 12 |  |  |  |  |  |  |
| CV-12NT-120/300-2 | 120 × 300 × 300 | 12 |  |  |  |  |  |  |

## 1400°C Dual-Zone Tube Furnace 

| Model | Furnace Tube Diameter × Heating Zone Length (mm) | Power (kW) | Maximum Temperature (°C) | Operating Temperature (°C) | Temperature Zones | Thermocouple Type | Furnace Tube Material | Heating Element |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| CV-14ST-40/220-2 | 40 × 220 × 220 | 5 | 1400 | 1300 | 2 | S-type | Corundum tube | Silicon carbide rods |
| CV-14ST-60/220-2 | 60 × 220 × 220 | 5 |  |  |  |  |  |  |
| CV-14ST-80/220-2 | 80 × 220 × 220 | 6 |  |  |  |  |  |  |
| CV-14ST-100/300-2 | 100 × 300 × 300 | 12 |  |  |  |  |  |  |
| CV-14ST-120/300-2 | 120 × 300 × 300 | 12 |  |  |  |  |  |  |

## 1600°C Dual-Zone Tube Furnace

| Model | Furnace Tube Diameter × Heating Zone Length (mm) | Power (kW) | Maximum Temperature (°C) | Operating Temperature (°C) | Temperature Zones | Thermocouple Type | Furnace Tube Material | Heating Element |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| CV-16MT-20/220-2 | 40 × 220 × 220 | 6 | 1600 | 1500 | 2 | B-type | Corundum tube | Molybdenum disilicide rods |
| CV-16MT-60/220-2 | 60 × 220 × 220 | 6 |  |  |  |  |  |  |
| CV-16MT-80/220-2 | 80 × 220 × 220 | 6 |  |  |  |  |  |  |
| CV-16MT-100/300-2 | 100 × 300 × 300 | 12 |  |  |  |  |  |  |
| CV-16MT-120/300-2 | 120 × 300 × 300 | 12 |  |  |  |  |  |  |

## Triple-Zone Tube Furnace

| Model | Furnace Tube Diameter × Heating Zone Length (mm) | Power (kW) | Maximum Temperature (°C) | Operating Temperature (°C) | Temperature Zones | Thermocouple Type | Furnace Tube Material | Heating Element |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| CV-12NT-40/220-3 | 40 × 220 × 220 × 220 | 7.5 | 1200 | 1100 | 3 | K-type | Quartz tube | Molybdenum resistance wire |
| CV-14ST-40/220-3 | 40 × 220 × 220 × 220 | 7.5 | 1400 | 1300 | S-type | Corundum tube | Silicon carbide rods |  |
| CV-16MT-40/220-3 | 40 × 220 × 220 × 220 | 9 | 1600 | 1500 | B-type | Corundum tube | Molybdenum disilicide rods |  |

**Note:** Furnace tube size, power, number of temperature zones, vacuum degree, and atmosphere systems can be customized to meet specific customer requirements. Contact us for detailed technical specifications.

## CVSIC Multi-Zone Tube Furnace Features

The Multi-Zone Tube Furnace, equipped with advanced technology and user-centric design, offers the following core advantages:

- **Independent multi-zone temperature control:** Supports dual-zone or triple-zone independent temperature control, meeting the needs of complex processes such as CVD and nanomaterial preparation.

- **High vacuum performance:** Equipped with a molecular pump, achieving a极限 vacuum of 7×10⁻⁴ Pa and a maximum vacuum of -0.1 MPa, ensuring a pure heat treatment environment.

- **Precise atmosphere control:** Supports inert atmospheres (N₂, CO₂, Ar), with 304 stainless steel double-sealed flanges to prevent gas leakage, optimising sintering results.

- **Flexible furnace tube selection:** High-purity quartz (1200°C) or high-purity alumina (1400°C, 1600°C), offering high-temperature resistance and corrosion resistance to extend service life.

- **Intelligent temperature control:** 30-segment programmable PID control, temperature control accuracy ±1°C, heating rate ≤20°C/min, meeting high-precision process requirements.

- **Safety protection:** Over-temperature and leakage automatic power-off protection, double-layer air-cooled structure ensures surface temperature below 50°C, ensuring operational safety.

- **Durable design:** The alumina polycrystalline fibre furnace chamber is high-temperature and corrosion resistant, with adjustable flange support structures at both ends to extend the service life of the furnace tube.

- **Standard accessories:** These include tube plugs, thermocouples, furnace tubes, vacuum pumps, vacuum flanges, and vacuum pressure gauges to simplify the operating process.

## CVSIC Multi-Zone Tube Furnace Application

Multi-Zone Tube Furnaces are widely used in the following industries and processes:

- **Nanotechnology:** Preparation and heat treatment of carbon nanotubes, silicon nanowires, and other nanomaterials.

- **Lithium-ion battery materials:** Sintering and debinding of cathode and anode materials.

- **Thin film deposition:** Chemical vapour deposition (CVD) and thin film material preparation.

- **Ceramic industry:** Sintering and heat treatment of special and functional ceramics.

- **Research and laboratories:** Multi-zone heat treatment experiments for new materials (such as composite materials and catalysts) in universities and research institutions.

- **Powder metallurgy:** Sintering and heat treatment of metal powders and alloy materials.

This furnace type provides an efficient solution for customers requiring multi-zone precise control, high vacuum, and complex processes, particularly suitable for laboratory research and small-scale production.

## Customisation services

CVSIC offers comprehensive customisation services to ensure seamless integration with your production and R&D requirements:

- **Furnace tube dimensions and materials:** Customisable furnace tube diameter (40–120 mm) and heating zone length (220–300 mm), available in high-purity quartz or aluminium oxide materials.

- **Temperature zone configuration:** Supports dual, triple, or quintuple independent temperature zones to accommodate specific processes.

- **Heating elements:** Choose from molybdenum resistance wire, silicon carbide rods, or silicon molybdenum rods to optimise heating efficiency.

- **Vacuum and atmosphere systems:** Customise high vacuum (7×10⁻⁴ Pa) or inert gas systems, supporting float/mass flow meters and multi-channel gas control.

- **Control system:** Provides a 7-inch high-definition touchscreen, computer connection software, and data-logging control programs to enhance automation levels.

## Optional accessories

- **Vacuum system: ** Rotary vane mechanical, diffusion, or molecular pump.

- **Atmosphere system:** Float/mass flow meter, multi-gas control.

- **Quick-release/three-way flange:**** ** Enhances operational convenience.

- **Global Support:** Provides installation guidance, operational training, and maintenance services to ensure the stable, long-term operation of the equipment.

Please get in touch with CVSIC to obtain customised multi-temperature zone tube furnace solutions tailored to your industry that support global wholesale and custom orders.