1). Power system: battery DC power supply, single-phase or three-phase power supply, diesel engine, hydraulic pump.
2). Walking: auxiliary self-propelled type, two-wheel traction type, self-driving type, and car modified type.
3). Outriggers: mechanical outriggers, hydraulic outriggers, ordinary hand-cranked outriggers, and pull-out outriggers.
4). Control system: explosion-proof electronic control system, remote control system, PIC control system.