MCSR Grab                
                
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                        - Mechanical                    
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                        - Single-Rope (single drum crane)                    
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                        - On-The-Hook solution                    
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                        - Touch-Down required to Open/Close the grab                    
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                        - No additional equipment needed                    
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                        - Shock-absorbing cylinder                    
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                        - Less maintenance work                    
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                        - Easy to operate                    
             
         
        
        
            Description        
        
            The Single Rope Grab, also called Touch-Down Grab, is especially designed for cranes with a single cable drum. Also most vessel cranes have single drum cranes, that cannot operate 2- or 4-Rope Grabs. In such case this grab will be a practical On-The-Hook solution. A mechanism on the grab, locks/unlocks the grab to open or close each time it touches the ground. This system is mostly preferred, if there is only one cable available.        
        
            
            
                
                    A step by step description of a touch-down mechanism:                
                
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                        Grab is lowered at open position.                    
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                        After grab touches down on the material, the rope from the crane is released until lose. The mechanism is locked now.                    
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                        The grab is pulled up and will close (buckets or tines), filling up with material.                    
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                        The loaded grab is taken to destination.                    
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                        At unloading destination (in this case, a hopper), the grab will be lowered to touch-down again until crane rope is loose again. The mechanism is unlocked now.                    
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                        When lifted, the material will spill out as the grab opens.                    
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                        The grab is empty.                    
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                        The grab is taken to loading destination.