It can be widely used in large-scale, ultra-high type of civil construction, power plants, bridges, dams and other works.
The Luffing crane
boom is hinged to a frame on which is mounted a winch operating the boom through a pulley tackle. The fixed pulleys of the boom tackle are mounted on the crane frame and the movable pulleys thereof are linked to the boom head. The boom tackle has auxiliary pulleys mounted on symmetrically positioned brackets pivoted to the crane frame parallel to the boom luffing crane plane
. The rope is reeved so that its parts connecting the movable and fixed pulleys run parallel to the boom luffing plane and the auxiliary pulleys are each connected to the movable pulleys by the same number of rope parts. Another winch mounted on the frame raises and lowers the load. The drums of both winches are kinematically interconnected so that they simultaneously rotate in opposite directions, whereby the boom is elevated while the load is lowered. Thus, the load is moved in a true horizontal path while the reach of the crane boom is varied.
De-Ying is a leading manufacturer of luffing crane which located in Zhejiang province of China, we mainly supply and deal with max load 8 tons, 10tons, 12tons and 16 tons at home and abroad. Every phase of the luffing crane production process has been carefully examined, studied and planned in order to assure the safety and reliable product.