The National Crane 680E2 is no longer part of the 600E2 Series boom truck crane lineup.  It is equipped with a 24' - 80'  (7.3 - 24.4 m) four-section main telescopic boom and jib extensions are not available with this model. This crane has a 75' (22.8 m) working radius and a 90' (27.4 m) tip height. 

Best in class performance and serviceability

• The steel torsion box and flatbed further reduce frame flex
• Speedy-reeve boom tip and sheave blocks simplify rigging changes by decreasing the time needed to change line reeving
• Crane components painted before assembly reduce the chance of rust, improve serviceability and enhance the appearance of the crane
• A control knob located on the swing motor brake release valve can be easily adjusted to the crane operator’s swing speed preference
• Engine start/stop switches
• Emergency stop overrides located at the crane operator control station
• Hydraulic reservoir capacity of 66 gal

Serviceability

• Bearings on the boom and retract cables can be greased through access holes in the boom side plates.
• Removable winch allows the internal telescoping cylinder to be removed quickly, without dismantling the boom
• Internal anti-two-block wire routing eliminates external reel and wire to protect crane components
• The boom sheave case is open, allowing access to replace the internal anti-two-block wire and to observe internal boom components
• Internal boom parts have been reduced, decreasing service time when rebuilding the machine

Best in class performance and serviceability

• The steel torsion box and flatbed further reduce frame flex
• Speedy-reeve boom tip and sheave blocks simplify rigging changes by decreasing the time needed to change line reeving
• Crane components painted before assembly reduce the chance of rust, improve serviceability and enhance the appearance of the crane
• A control knob located on the swing motor brake release valve can be easily adjusted to the crane operator’s swing speed preference
• Engine start/stop switches
• Emergency stop overrides located at the crane operator control station
• Hydraulic reservoir capacity of 66 gal

Serviceability

• Bearings on the boom and retract cables can be greased through access holes in the boom side plates.
• Removable winch allows the internal telescoping cylinder to be removed quickly, without dismantling the boom
• Internal anti-two-block wire routing eliminates external reel and wire to protect crane components
• The boom sheave case is open, allowing access to replace the internal anti-two-block wire and to observe internal boom components
• Internal boom parts have been reduced, decreasing service time when rebuilding the machine

The National Crane 680E2  is still fully supported by a network of Manitowoc Group National Crane Distributors.