Abell-Howe J904R Series Jib Crane
The Abell-Howe J904R Series is a foundationless jib crane built for light-duty industrial applications requiring only 6" of concrete depth.
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Features
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.
Optional Accessories
- Top or bottom entry collector or air swivel (for 360-degree continuous rotation).
- Rotation stops, wind or position lock for boom.
- Anchor bolts with template – paper or steel.
- Galvanized, sand-blasted or epoxy paint finishes.
- Spark-resistant or explosion-proof for hazardous locations.
- Electric, air or hand-geared powered rotation.
- Fusible disconnect switch for indoor or outdoor.
- Tagline wire or C-track festoon assemblies for power to trolley/hoist.
