Spider crane is miniature designed, small in size and strong in lifting capacity. Production range: 1.5 tons - 12 tons and above, most commonly used models: 3 tons - 5 tons - 8 tons. Models and configurations can be customized, with reasonable design, simple operation, easy to learn and understand, and zero pressure at work. It is operated by wireless remote control or fuselage switch, and the operation is fast. It bids farewell to the era when people can only work in narrow spaces, which not only improves work efficiency but also ensures work safety. The spider crane adopts rubber crawler hydraulic walking device, and the hoisting, telescopic, heaving and rotating devices are all hydraulically driven. The whole machine adopts the design and optimization concept of three-dimensional modeling, finite element analysis and whole machine calculation, and has the advantages of good whole machine flexibility, convenient operation, compact structure, light and flexible operation, reliable use, and convenient maintenance. The machine is suitable for operation in narrow places where large cranes cannot be deployed.