^{According to the needs of different environment and social and economic forms, a kind of mobile rail handling equipment which can replace manual, forklift and ground rail turntable has been accepted by the majority of customers.}

^{The handling equipment can be in different places and the environment will be different in different tonnage size object automatically to the space and the path is relatively narrow place, free shuttle to the various space and environment, the current is mainly used for all kinds of abrasive, join the automation program can also be used for a variety of stereoscopic warehouse, has gradually become the main character in the current transport equipment. Vertical and horizontal movable trackless truck is mainly composed of vehicle body, drive system (battery, motor, deceleration unit), electrical system, steering wheel, or glossy wheel and safety inspection system of the five most, vehicle body set size according to the different needs of customers, mainly used for carrying goods, ontology is mainly used for the wheel forward, backward, left and right sides is mobile, Both wheels can move vertically and horizontally, but the McNamham wheel works better.}