Spider cranes are mainly used in narrow places where large cranes cannot be deployed. It can be driven by gasoline or 380V motor and can realize wireless remote control operation. It can be used as a small aerial work truck by installing a working gondola. Its products are widely used in the hoisting of cemetery tombstones, the installation of indoor electrical equipment in substations, the installation and maintenance of pipeline laying of equipment in petrochemical plants, the installation and maintenance of glass curtain walls, the installation and maintenance of high-rise lamps and lanterns in buildings, indoor decoration and other occasions with narrow spaces.