Abell-Howe J904R Series Jib Crane

Abell-Howe J904R Series Features and Benefits

• 1/4 ton – 1 ton.
• Boom lengths from 8–20 ft.
• Under Boom Height from 8 to 20 ft.

Specifications

• Requires epoxy anchor bolts.
• 360-degree rotation on a tapered roller bearing providing full-capacity vertical and radial thrust loading.

Component Material

• Mast – Fabricated from heavy wall structural steel pipe with wall thickness sized to minimize deflection.
• Boom – Wide flange beam section which provides high load-bearing capacity and improved structural integrity to effectively resist bending stresses.
• Head section – Rigid steel plate box type with welded construction for minimum deflection between boom and mast.

Concrete Floor Notes

• Concrete floor must be at least 6” thick and contain wire mesh reinforcement.
• Minimum soil pressure of 2,500 psf.
• Minimum concrete compressive strength of 3,000 psi.
• Jib crane must be centered on a square foot area that is free of cracks, seams, control joints, and walls.