Tagged with 'Sheave Snatch Blocks '

Hanes Supply, Inc. of Albany, was asked to advise the necessary rigging for a project to take a 38,900 lb Excavator turn it vertically and lower the unit down a 24’ diameter tunnel opening 200’ deep. The unit would be turned back to a horizontal position for excavation of rock debris at the bottom of the tunnel. We had to use all four pick points in the rear end of the Excavator to absorb the load equally. We had to meet the 70% safety factor of the rigging working load limits for MSHA standards while lowering the Excavator in tunnel.