WALL BRACKET SERIES 301

The Spanco wall bracket Jib Crane is a style which offers 2000 rotation with the advantage of no supporting components under the boom. This enables the user to utilize the maximum work area, which might also include work close to the existing structure. The spance wall bracket style jib crane utilizes a standard i-beam for the boom, a tie rod threaded at both ends, a fabricated beam bracket and two wall brackets, one for the tie rod and one for the boom. This design is the cheapest style of jib crane, provided overhead clearance is not a limiting factor.

Note: Jib Cranes should never be hung from any existing building structure without first consulting an architect or structural engineer. the responsibility for determining if the existing structure of support to be used is adequate, rest entirely with the customer.

DESIGN FEATURES:

• SPANCO TOP AND BOTTOM WALL BRACKETS
• BEAM BRACKET ASSEMBLY
• TIE ROD
• OPTIONAL WALL BRACKET KITS

Top and Bottom Wall Bracket Assemblies:

1. Top wall bracket utilizes:

• A formed steel channel - The formed channel is utilized for the connection to the column or truss.
• Bolt clevis with two bronze bushings - The bolt clevis consists of a steel tube with a wrapped around steel bracket arrangement along with two bronze bushings press fitted into the tube. also, a grease fitting is provided to assure proper lubrication.
• Formed tie rod clevis - The tie rod clevis is formed from two steel parts and is attached to the top of the tie rod and includes and adjustment by a bolt in double shear to the bolt clevis arrangement.

2. The bottom wall bracket utilizes:

• A formed channel.
• The bolt clevis is constructed with a steel tube with bronze bushings press fitted into the tube along with a grease fitting.
• The bolt clevis has plates welded to the side of the tube with sufficient room to slide the web of the beam into it to form a bolted connection.

Design Advantages:

All bolted connections are in double shear. All swivel connections utilize bronze bushings and grease fittings to assure ease of rotation and long life as well as low maintenance.

BEAM BRACKET ASSEMBLY:

The beam bracket assembly consists of a formed channel and a formed tie tod clevis. the formed channel is bolted to the flange of the i-beam. the tie rod clevis is connected to the bottom of the tie rod and also connected to the formed channel by a bolt.

Design Advantages:
The bolted connection is in double shear. The tie rod is connected to the clevis to enable adjustment by utilizing an adjustment nut.

TIE RODS:

The spanco wall bracket jib crane utilizes one tie rod. the tie rod provides ease in leveling the boom. A single tie rod centered properly assures the beam will be loaded evenly. Two tie rods can create off-center loading if both rods are not properly leveled. This design eliminates this potential problem.