HXB series mini spider crane takes the military rubber hydraulics crawer with hydraulic winching, stretching, up & down and slewing systems. It can use two sets of power system, electricity and gasoline engine which are free switch. It adopts advanced design method and idea such as solidworks 3D, ANSYS Element analysis of limitand computerization of total machine. Therefore, the equipment has many advantages such as better flexibility, convenient operation, compact structure, stable performance, reliable use and convenient maintenance. The HXB crane is widely applied in narrow working space where heavy-duty crane cannot get in.