The single crystal furnace is a flexible shaft lifting equipment used for growing single crystals using the Czochralski (CZ) method. It melts polysilicon materials in a quartz crucible by heating them with graphite resistance heaters in an inert gas atmosphere below atmospheric pressure, producing high-quality, dislocation-free single crystals. JA Solar can now produce single crystal furnaces with a CZ capacity of 160 and above.
The NVT-HG2200-V1 is mainly applied to the preparation process of 8–12-inch monocrystalline silicon in the photovoltaic industry. This equipment boasts the advantages of large feeding capacity, high pulling speed, low energy consumption, as well as automation and intelligence. The system is primarily composed of the seed crystal lifting/rotating system, crucible lifting/rotating system, heat shield lifting system and electronic control system.
