A new app displays the load capacities of various shackles and slings, such as wire rope, chain, nylon web and round. Screen shot courtesy of RigIT. A new app displays the load capacities of various shackles and slings, such as wire rope, chain, nylon web and round.RigIT LLC, San Francisco, released the app RigIT for the iPhone, iPad and iPod Touch on June 8, 2011.“I have my rigging charts on a sticker inside my hardhat,” says Perry Churchill, safety manager with Bragg Crane Co., Long Beach, Calif. “But some of my charts only go up to a certain width, like
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.