The AL100 Wall Bracket Work Station Jib Crane utilizes Gorbel’s patented light weight, high-strength extruded aluminum enclosed track for its boom. This revolutionary new aluminum track reduces the rotational dead weight of the boom by 56% to 68%, allowing the AL100 to rotate up to 40% easier than a comparable I-beam jib. Sufficient clearance throughout the arc of the boom must exist to accommodate the tie rod suspension. The wall or column mounted WSJ200 crane uses tapered roller bearings at the pivot points for unsurpassed ease of rotation. To ensure that the jib is aligned through the pivot axis and thus avoid unwanted drifting of the boom, shim stock up to 7/32” is included with each jib.