# Vertical Tube Furnace

The CVSIC Vertical Tube Furnace is a high-precision heating system designed for controlled-atmosphere or high-vacuum processes. Operating at temperatures from 1200°C to 1600°C, it is ideal for sintering, vapor deposition, brazing, and thermal treatment of ceramics, battery materials, and metallic powders.

Available with high-purity quartz (1200°C) or alumina tubes (1400°C/1600°C), the system features a vertically aligned design, offering precise temperature uniformity, rapid thermal response, and exceptional safety. A double-layer shell with air cooling ensures operator protection. The system can be configured with resistance wire, SiC rods, or MoSi2 rods to suit different thermal profiles.

## CVSIC Vertical Tube Furnace Applications

- **Advanced Ceramics:** High-temperature sintering of structural, electronic, and functional ceramics.

- **Battery Materials:** Cathode/anode material processing, solid electrolyte sintering, and low-pressure CVD.

- **Powder Metallurgy:** Sintering and debinding of metal powders and composites.

- **Nanomaterials & Thin Films:** CVD, CNT growth, nanowire synthesis under vacuum or controlled gas flow.

- **Brazing & Heat Treatment:** Precision joining and annealing processes for research or small-scale production.

## CVSIC Vertical Tube Furnace Features

- **Wide Temperature Range:** 1200°C / 1400°C / 1600°C models with reliable operating temperatures up to 1500°C.

- **Precise Temperature Control:** PID programmable control (30 to 50 segments), ±1°C accuracy, and up to ≤20°C/min heating rate.

- **High Vacuum Capability:** Optional molecular pump system achieving up to 7×10⁻⁴ Pa (cold state), -0.1 MPa vacuum sealing.

- **Superior Atmosphere Control:** Supports Ar, N₂, O₂, CO₂, air—sealed via double-layer SS flanges with leak prevention.

- **Durable Construction:** High-purity quartz or alumina tubes with adjustable flange supports extend system life.

- **Robust Safety Systems:** Over-temperature and leakage protection, insulated cold shell with air-cooling.

- **Complete System Package:** Includes vacuum pump, pressure gauge, flanges, plugs, thermocouple, and furnace tube.

## Custom Options

- Tube diameter: 40mm to 120mm

- Heating zone length: 300mm / 450mm

- Heating elements: FeCrAl, **[SiC Heating Elements](https://cvsicelement.com/silicon-carbide-heating-elements/)**, **[MoSi2 Heating Elements](https://cvsicelement.com/mosi2-heating-elements/)**

- Atmosphere systems: single/multi-gas channels, float or mass flow meters

- Control system: PLC touchscreen, data logging, remote monitoring

- Vacuum system: Rotary pump / Molecular pump

- Service: Global installation support, training & maintenance

**Contact CVSIC to discuss your ideal furnace configuration and receive a tailored solution.**

## Technical specifications

## 1200°C Vertical Tube Furnace (with Molybdenum Resistance Wire)

| Model | Furnace Tube Diameter × Heating Zone Length (mm) | Power (kW) | Maximum Operating Temperature (°C) | Thermocouple Type | Furnace Tube Material | Heating Element |
| --- | --- | --- | --- | --- | --- | --- |
| CV-12NVT-40/300 | 40 × 300 | 3 | 1100 | K-type | Quartz tube | Molybdenum resistance wire |
| CV-12NVT-60/300 | 60 × 300 | 3 |  |  |  |  |
| CV-12NVT-80/300 | 80 × 300 | 5 |  |  |  |  |
| CV-12NVT-100/300 | 100 × 300 | 5 |  |  |  |  |
| CV-12NVT-120/300 | 120 × 300 | 6 |  |  |  |  |
| CV-12NVT-40/450 | 40 × 450 | 3 |  |  |  |  |
| CV-12NVT-60/450 | 60 × 450 | 3 |  |  |  |  |
| CV-12NVT-80/450 | 80 × 450 | 5 |  |  |  |  |
| CV-12NVT-100/450 | 100 × 450 | 5 |  |  |  |  |
| CV-12NVT-120/450 | 120 × 450 | 6 |  |  |  |  |

## 1400°C Vertical Tube Furnace (Silicon Carbide Rods)

| Model | Furnace Tube Diameter × Heating Zone Length (mm) | Power (kW) | Maximum Operating Temperature (°C) | Thermocouple Type | Furnace Tube Material | Heating Element |
| --- | --- | --- | --- | --- | --- | --- |
| CV-14SVT-40/300 | 40 × 300 | 4 | 1300 | S-type | Corundum tube | Silicon carbide rods |
| CV-14SVT-60/300 | 60 × 300 | 4 |  |  |  |  |
| CV-14SVT-80/300 | 80 × 300 | 4 |  |  |  |  |
| CV-14SVT-100/300 | 100 × 300 | 6 |  |  |  |  |
| CV-14SVT-120/300 | 120 × 300 | 6 |  |  |  |  |
| CV-14SVT-40/450 | 40 × 450 | 4 |  |  |  |  |
| CV-14SVT-60/450 | 60 × 450 | 4 |  |  |  |  |
| CV-14SVT-80/450 | 80 × 450 | 4 |  |  |  |  |
| CV-14SVT-100/450 | 100 × 450 | 6 |  |  |  |  |
| CV-14SVT-120/450 | 120 × 450 | 6 |  |  |  |  |

## 1600°C Vertical Tube Furnace (Molybdenum Disilicide Rods)

| Model | Furnace Tube Diameter × Heating Zone Length (mm) | Power (kW) | Maximum Operating Temperature (°C) | Thermocouple Type | Furnace Tube Material | Heating Element |
| --- | --- | --- | --- | --- | --- | --- |
| CV-16MVT-40/300 | 40 × 300 | 4 | 1500 | B-type | Corundum tube | Molybdenum disilicide rods |
| CV-16MVT-60/300 | 60 × 300 | 4 |  |  |  |  |
| CV-16MVT-80/300 | 80 × 300 | 4 |  |  |  |  |
| CV-16MVT-100/300 | 100 × 300 | 6 |  |  |  |  |
| CV-16MVT-120/300 | 120 × 300 | 6 |  |  |  |  |
| CV-16MVT-40/450 | 40 × 450 | 5 |  |  |  |  |
| CV-16MVT-60/450 | 60 × 450 | 5 |  |  |  |  |
| CV-16MVT-80/450 | 80 × 450 | 5 |  |  |  |  |
| CV-16MVT-100/450 | 100 × 450 | 9 |  |  |  |  |
| CV-16MVT-120/450 | 120 × 450 | 9 |  |  |  |  |

**Note:** All models can be customized. For complete specification sheets or consultation, please contact us.

Looking for a vertical tube furnace that meets your exact needs? CVSIC offers full customization, global support, and unmatched quality.