Page 13 - Contractors World - International Vol 3 No 7

Page 13
Contractors World - InternationaVol 3 No 7
With its recent acquisition of the 600 ton (500 t) capacity class Terex AC 500 2 All Terrain crane, that same 140 ton (127
t) piece can now be lifted with a single crane, with room to spare. In addition to saving time and money from mobilizing
fewer cranes and equipment, “any time you can make a lift with a single crane, it is relatively safer, as it involves less
complexity,” adds Ronnie Solley, vice president of Solley Crane Service.
Shortly after receiving delivery of the new crane, the company put it to work at the Cullman, Alabama railroad
yard. They mobilized the crane and equipment in six truckloads to off load new press parts for a local automotive parts
manufacturer. “The biggest press part was too heavy and large to transport it long distances over the road,” says Ray
While the crane’s counterweight and boom sections were transported to the jobsite on lowboy trailers, the crane was
quickly driven to the railroad facility. “With the largest press part weighing 140 tons (127 t), the crane required only 110
tons (100 t) of its 195 tons (180 t) of counterweight, so we had plenty of capacity left,” says Ronnie Solley. Putting his
extensive crane and heavy equipment experience to good use, Tony Grisham, Solley Crane’s field superintendent, and the
Solley Crane crew were able to have the crane ready to lift on the day after the crane was loaded out for the jobsite.
The six truckloads represented a sizeable reduction in the number of transport vehicles it takes to mobilize two
conventional 250 ton (200 t) cranes. Additionally, according to Ray Solley, it saved the company about a half day of
rigging on both ends of the job, “which saved us money.”
Over a four day period at the railroad yard, the Terex AT and Solley Crane’s six crew members performed six lifts to
transfer all the automotive press pieces. By far, the largest piece was the 140 ton (127 t) base. Working at a 33 ft (10 m)
radius with 93.8 ft (28.6 m) of boom, the AC 500 2 quickly lifted the 14 ft wide by 30 ft long by 15 ft high (4.3 m by 9.1 m
by 4.6 m) object from the rail car and moved it to the transporter, so the piece could travel the final 6 miles (9.7 km) to
its destination. “The press base was crated and had lifting eyes, so it was a straight forward rigging and lift job,” mentions
Ray Solley.
Reducing the number of cranes at the congested railroad yard also improved lift efficiency. Just over 56 ft (17 m) long,
the Terex AC 500 2 has one of the shortest vehicle length of all the 600 ton (500 t) capacity cranes. “Accessibility was an
issue at this jobsite, and it was easier using the single crane,” adds Ray Solley.
The crane and Solley Crane’s crew performed efficiently and flawlessly in transferring the machinery from the railcar
to the transporter. “Both operators commented that it is a very smooth operating crane,” says Ronnie Solley.
Why use two
when one will
For Decatur, Ala.’s Solley Crane Service, hoisting
a 140 ton (127 t) object previously meant
mobilizing multiple cranes. “For a job that size,
we would use two of our 250 ton (200 t) cranes
and do a tandem lift,” explains Ray Solley,
president of Solley Crane Service.