Self-Propelled Crawler crane SKG-631

The SKG-631 crawler crane has a lifting capacity of up to 63 t or (in a special version up to 100 t) depending on the installed boom equipment and the counterweight weight. The crane has an electric multi-motor drive operating on alternating three-phase current with a voltage of 380 V, and can be powered from an external network or from a diesel-electric station located in a separate block and supplied by special order. The crane is equipped with a tower-boom equipment consisting of a boom (tower) and a shunting jib. During operation, the boom does not change its position and has a front pre-stressed guy wire. With a boom of 12 m, the crane has a maximum lifting capacity of 100 t, with a hook lifting height of 11.3 m; When the crane is equipped with a 17.6 m boom, its lifting capacity is 63 tons. The 17.6 m long boom is the main one for the SKG-631 crane. It consists of three sections, with a removable head attached to the end of the boom. Using replaceable sections, the boom can be extended to 22.5; 27.7; 32.6 and 37.7 m. The crane booms can be equipped with a 7.60 m long installation jib for auxiliary lifting. The shunting jib is 29.2 m long. Using replaceable sections (inserts), its length can be reduced to 24.0; 19.0; 16.6 m. The boom and jib are triangular in cross-section and made of pipes. The slewing bearing is a double-row ball bearing. The counterweight is made of three parts: the main one - 14 tons and two additional ones of 8.5 tons each. To transport the SKG-631 crane by rail, it is disassembled into the following parts: a rotating platform, a support frame, two crawler bogies, additional counterweights, a boom, a shunting jib, inserts in the boom and jib, a shunting jib console and an installation jib. Five four-axle railway platforms are required to transport the crane. The SKG-631 crane is equipped with devices for loading the engine room of the rotating platform onto a railway platform.