Widely used Chinese Double rope grab bucket

1.Capacity:5t-100t,
2.Span:5m-40m,
3.Lifting height:6m-30m,
4.Good after-sale service and top quality

Double Rope Grab Working Principle:

Double rope grab suitable for double hoisting device structure (single ropes) of all kinds of crane, almost use in port and dock, construction bridge, etc. According to the material properties can be used for light , medium, heavy and super-heavy. For capturing all kinds of loose debris.

Double rope grab working principle

In all kinds of crane, with two groups of motor drum(the electric hoist), each group of motor drum leads one wire rope , one wrie rope in balance frame for supporting , nd the other rope pass the up beam pulley and the down beam pully, composite a pulley block as opening and closing the grab bucket.

Work beganing, support wire rope will lift the grab bucket in well place, and then shut down the support rope, rely on the dead weight of the down beam forced the down beam big shaft as center open the grab body. When the two ear plates' touch piece smash togther, the grab body part open maximum. When opening the grab bucket, the up beam pulley and down beam pulley's center distance increase. And then the support rope put down, the opened grab bucket fall on the captured materials above, and packed around the open and close rope, the up beam pulley and the down beam pulleys' center distance return to its original position. Thus completing the capture the grab materials process. In the last, lifting open and close rope and support rope at the same time, the whole grab bucket is lifted, according to the crane, move the grab bucket to the discharge yard. Unloading the materials.