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QKD series of "self-locking rail clamp"(formerly known as: Card rail device)
QKD Series "from the petty type rail clamp"is based on the crane to go round some more rounds down at the same time, requiring wind resistance, wind equipment developed for the crane. It can start work in the crane automatically lift the rail clamp pliers, complete left orbit and above the orbital plane 25mm. When the crane stops working, as long as the cut off the power, rail clamp clamp down both automatic and can automatically track after being whereabouts on the track. Crane left and right moves, can promote the rail clamp clamp on the eccentric shaft, so that rail clamp clamp live track, and the greater the wind the greater the resistance. (With manual troubleshooting operating system)
 
 • Install "from the petty type rail clamp", the need to track surface above ground level 20mm, such as the orbital plane parallel to the floor, the requested track 20mm wide and 25mm deep on each side of the track groove, so that the rail clamp pliers can put In orbit. And require crane complete stop, then release the rail clamp, to ensure their being able to track center.
 This product is suitable for standard rail QU70, orbit wide 70mm, such as the use of other rail, take orders, declare, and to provide models or track rail sections.