Polysilicon Directional Solidification Furnace for Solar Silicon Ingot Casting
A Polysilicon Directional Solidification Furnace is used for melting, purifying, and casting silicon ingots for solar photovoltaic materials.
For solar silicon production, stable temperature control, high vacuum performance, and accurate directional solidification are critical. A reliable furnace can improve crystal quality, support material purification, and reduce process instability.
🔵 View WOLFU Polysilicon Directional Solidification Furnace
The WOLFU furnace is designed for high-purity silicon melting and ingot casting, with PLC automation, high vacuum operation, inert gas protection, and controlled crystal growth.
Key Specifications
| Feature | Specification | Benefit |
|---|---|---|
| Product Name | Polysilicon Directional Solidification Furnace | Solar silicon ingot casting solution |
| Application | Silicon melting and ingot casting | Suitable for PV silicon production |
| Voltage | 380V | Industrial power configuration |
| Power | 160KW | Stable high-temperature processing |
| Max Temperature | 1600°C | Supports polysilicon melting |
| Crucible Capacity | 90KG | Practical ingot production capacity |
| Solidification Speed | 5–25 mm/hour | Controlled crystal growth |
| Ultimate Vacuum | 6.67×10⁻³ Pa | High vacuum performance |
| Core Component | PLC | Automated process control |
| Weight | 12T | Heavy-duty furnace structure |
How the Furnace Works
Step 1: Silicon Material Loading
Polysilicon or silicon raw materials are loaded into the crucible according to the required ingot capacity.
Step 2: Vacuum and Inert Gas Protection
The furnace creates a high-vacuum environment and can use inert gas protection to reduce contamination during melting.
Step 3: High-Temperature Melting
The furnace heats silicon material up to 1600°C, turning the raw material into molten silicon.
Step 4: Directional Solidification
The system controls the temperature gradient from top to bottom, allowing silicon to solidify in a controlled direction.
Step 5: Ingot Formation
The final silicon ingot can be used for solar photovoltaic material production and advanced silicon processing.
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Main Advantages
High Vacuum Performance
The furnace supports high vacuum operation, helping reduce contamination and improve silicon processing stability.
Controlled Crystal Growth
Directional solidification controls the crystallization process, improving ingot quality and supporting silicon purification.
PLC Automatic Control
PLC and HMI control make the full process easier to operate and more repeatable.
Suitable for Solar Silicon Production
The furnace is designed for polycrystalline silicon ingot production used in solar cells and photovoltaic materials.
Customizable Furnace Design
Furnace capacity, thermal field structure, vacuum system, and plant layout can be customized according to project requirements.
Suitable Applications
The WOLFU Polysilicon Directional Solidification Furnace is suitable for:
- Solar silicon ingot casting
- Polycrystalline silicon production
- Photovoltaic material processing
- Semiconductor material preparation
- Silicon purification projects
- Advanced crystal growth research
- Solar cell material manufacturing
Related WOLFU Equipment
For solar silicon melting before ingot production, review:
🔵 WOLFU Industrial Silicon Melting Induction Furnace
For smaller polysilicon ingot casting applications, review:
🔵 WOLFU Polysilicon Ingot Casting Furnace
For vacuum heat treatment applications, review:
🔵 WOLFU Vacuum Controlled Atmosphere Quenching Furnace
Why Choose WOLFU?
WOLFU provides industrial furnaces, crystal growth furnaces, vacuum systems, induction melting equipment, and customized metallurgical solutions.
For polysilicon directional solidification projects, WOLFU can recommend suitable equipment based on crucible capacity, production scale, silicon purity target, vacuum requirement, thermal field design, and workshop layout.
Conclusion
A Polysilicon Directional Solidification Furnace is a key system for producing silicon ingots used in solar photovoltaic applications.
The WOLFU furnace offers 1600°C maximum temperature, 90KG crucible capacity, 5–25 mm/hour directional solidification speed, 6.67×10⁻³ Pa ultimate vacuum, PLC automation, and customized thermal field design.
If your company needs a reliable furnace for solar silicon ingot casting, polysilicon purification, or photovoltaic material production, WOLFU can provide a customized solution based on your project requirements.
🔵 Get a Quote for WOLFU Polysilicon Directional Solidification Furnace
FAQ
What is this furnace used for?
It is used for melting polysilicon and producing silicon ingots for solar photovoltaic applications.
What is the maximum temperature?
The maximum temperature is 1600°C.
What is the crucible capacity?
The listed crucible capacity is 90KG.
What is directional solidification?
Directional solidification controls the solidification direction of molten silicon to improve crystal quality and purity.
Can WOLFU customize the furnace?
Yes. WOLFU can customize crucible capacity, furnace size, thermal field design, vacuum system, and production configuration.