The so-called trolley line, the name suggests, is the sliding contact wire. Trolley line, generic sliding electrical conductivity, full name of the security Slipping transmission device. The structure forms, but the general principles are as follows: mobile devices as mobile, need to constantly change position, in every different position, mobile devices and also have ready access to power supply, otherwise it can not continue to move. At this time, trolley line is adopted. We follow the track of mobile devices running parallel to the laying of a number of articles conductor, connected to power. In the mobile device, we can install to take power from the conductor on the collector. Thus, when the device moves, collector synchronized with the device, and to keep the power from the conductor made available to the equipment, so equipment can continue to move. The set of electrical conductors and the composition of the device on the trolley line known. Roll forming machine  

Trolley line is mainly used for a variety of material handling equipment, production lines and other facilities required to move the power and place, such as cranes, crane, electric hoist, warehouse, play equipment, air conditioning inspection lines, widely used in lifting transport, electricity, shipbuilding, port, metallurgy, mining, water, environmental protection, chemicals, home appliances, automobiles, clothing, tobacco and alcohol, amusement, and many other industries. Roll former

Trolley line is a power supply for mobile systems is now widely used aluminum alloy for the safety of current-carrying conductor slip-line system, the aluminum conductive surface, and brush friction parts, with good wear resistance of stainless steel inlay amended to ensure that mobile security slip line conductivity and effective service life. A combination of conventional trolley line, catheter-style slip line, pole safety trolley line, trolley line rigid, high temperature slip lines were also used for mobile power supply systems and sliding steel tow cable.
Roll forming