National Crane 990A

New National Crane 990A Boom Truck for Sale

The 900A provides a 26 USt capacity and the longest boom length in its size range. It is available as a standard behind cab mount or as a rear mount. Boom lengths include 90 ft. and 103 ft. and the 25 ft.- 44 ft. jib can be used with either boom size. The 900A is also available as a wireline machine.

Boom: The 31,4 m (103 ft) four-section boom allows the operator to perform more lifts without the use of a jib, reducing setup time and improving efficiency.

Outriggers: “A” frame main outriggers with 21 ft span. RSOD 16 ft out and down, rear stabilizers for standard behind-cab mount.

Easy Glide boom wear pads: Reduce the conditions that cause boom chatter and vibration resulting in smoother crane operation.

Lift Solutions Two-speed auger option: Available on the 990A, the 14,000 ft/lb two-speed drive auger with a maximum digging radius of 39 ft gives your crane enhanced working capabilities.  Controls are located at the operator’s console and hose slider on boom.  Auger flighting is available.

Performance you can rely on

• The Series 900A is standard with 375°non-continuous rotation.
• Burst of speed winch provides faster winch payout and pickup of unloaded cable.
• The stronger standard torsion box improves rigidity, reduces truck frame flex and reduces the need for counterweight.
• A control knob located on the swing motor brake release valve can be easily adjusted to the crane operator's swing speed preference.
• Bearings on the boom and retract cables can be greased through access holes in the boom side plates.
• Number of internal boom parts has been reduced, deceasing service time when rebuilding the machine.
• Standard on the 900A, internal anti-two block wire routing eliminates the external reel and wire, removing the possibility of snagging reel or wire on obstructions and causing damage.
• Painting crane components before assembly reduces the possibility of rust, improves serviceability and enhances the appearance of the machine.
• A removable winch allows the internal telescoping cylinder to be removed quickly, without dismantling the boom.
• Speedy-reeve boom tip and sheave blocks simplify rigging changes by decreasing the time needed to change line reeving.

• Four-section booms
• Internal Anti-two-block
• Self-lubricating "Easy Glide" Wear Pads
• Hydraulic Capacity Alert System (HCAS) or Load Moment Indicator system (LMI)
• Proportional boom extension
• Planetary "Burst of Speed" winch