857DW+ QUICK Hot Air Gun, Desoldering Rework Station, Soldering Motherboard, BGA, SMD, PCB, IC, Maintenance. Functionality: It's a hot air gun station primarily designed for desoldering and reworking SMD components on circuit boards. Features: It typically includes adjustable temperature control (100°C to 450°C), adjustable airflow, and an automatic cooling system to protect the heating element. Power & Heating: It's a high-power unit (e.g., 580W) designed for rapid heating, making soldering tasks efficient.