Hanes Supply Recently Provided Solutions for this Tunnel Excavator Rigging Lift
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.
The strength of the four pick points gave us only an extra 1,700 lbs of more weight to handle during the lift than used. The list of items used were 2-15 ton 10” sheave snatch blocks, 2-105B7/8X x 12’ slings w/heavy duty thimble eyes in an inverted basket, 1-200HT1-1/4X x 6’ sling w/heavy duty thimble eyes, 1-200EH7/8X x 30’ slings w/slip hooks, and 6-8.5 ton shackles attached to the excavator pick points.
Hanes Supply, Inc., is always up for the opportunity to resolve your rigging challenges. This project was supported by Bob DeLong of Hanes Supply, Inc.
Please contact Hanes Supply for all your Sling and Rigging requirements. |
