Original XCMG QY50K-1 Crane Parts Guide Pulley on the Boom 860138114
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This component is the core guide/load-bearing pulley of the boom system, installed on the boom body or boom head area of the main boom (five-section U-shaped main boom). It is specifically designed for the smoothness of wire rope steering, load transmission, and telescopic/lifting operations. It precisely guides the direction of the main lifting wire rope and boom telescopic cable, avoiding interference with moving/fixed components such as boom sections, cylinders, and pipelines. It is compatible with the QY50K-1 U-shaped boom anti-torsion structure to ensure that the wire rope does not derail or wear during full extension/retraction and luffing, and plays a key positioning role, especially in the synchronous control of boom telescopic movement.
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