Exhibit description

Railway crane EDK25-372

Exhibit design

The crane consists of a lower platform of a welded structure on two three-axle bogies with pneumatic and hand brakes. Each bogie has one axle equipped with a gear reducer with a gear transmission for moving the crane under its own power. Six hydraulic outriggers are installed on the frame for stabilization when working at large boom extensions and with a large load.

An intermediate platform is installed on the lower frame, which can move along the crane. It contains a rotating platform with a diesel-electric unit. On one side, it has mounts for a welded boom with a load hook, and on the other, a folding platform for retractable counterweights. The crane is equipped with two mobile counterweights with a total weight of 5.3 t, which have three positions. In the rearmost position, the crane can work with outriggers, in the middle — without them, and in the extreme forward position it can be transported.

Crane Features

The design uses an intermediate platform supported by eight rollers, two in a cage. Brackets are attached to the outside of the cage. On the inside, they have rollers that enter under the shelf of the main beam of the lower frame and prevent the intermediate platform from tipping over. The rotating part moves along the lower frame by 8.9 m, which allows one crane installation to service a site of 41 × 32 m.

The lifting capacity depends on the boom reach and the position of the counterweights. Maximum — 25 t. The crane is equipped with a diesel engine with a capacity of 100 hp, driving an electric generator with a capacity of 48 kW. Three-phase power voltage, 380 V. Minimum radius of passable curves — 80 m, length over buffers — 13,620 mm, crane weight in transport position — 106 t. During transportation, the boom is placed on a special support installed on the under-boom platform, and the hooks with clips are placed on the platform floor.

Historical context

A special feature of the EDK25 crane is the presence of an intermediate platform on which the rotating part with the boom is located. The platform has the ability to move along the main frame by 8.9 m. This allows one crane installation to service a 41x32 m site.

The crane's lifting capacity depends on the boom reach and the position of the counterweights. The maximum lifting capacity is 25 t on the main hook and 10 t on the auxiliary hook.