Core Functions and Applications
A grab sheave is a critical component in marine and port grab systems (such as SMAG, TTS, and MacGregor electro-hydraulic grabs). As a key force-transmitting and direction-changing part, it works with steel wire ropes and hydraulic cylinders to adjust the force direction and amplify lifting capacity during grab opening, closing, and lifting—ensuring smooth, efficient handling of bulk cargo (ore, coal, grain) and large items.
- Force transmission & direction change: Redirects the pulling force of steel wire ropes, converting vertical lifting force into horizontal or angular force to drive the grab’s jaw movement.
- Load distribution: Distributes the total lifting load evenly across multiple ropes and cylinders, reducing single-point stress and preventing component damage.
- Grab-specific adaptation: Specifically designed for port ship grabs (5-20 ton capacity), widely used in bulk cargo terminals, ship loading/unloading, and offshore cargo handling scenarios. It is indispensable for ensuring the grab’s stable operation during frequent opening and closing cycles.
