Aspen Trailers has produced a new 40 US ton (36 tonne), five axle crane dolly for Mammoet Crane in Edmonton, Alberta, Canada for use with a Liebherr LTM 1400 telescopic hydraulic crane. The new crane dolly offers increased protection for the hydraulic crane boom, operational features to meet the specific needs of the customer and more safety features than previous designs, according to the company.
Aspen's engineering team designed the dolly with air suspension for a smoother ride to help protect the hydraulic boom from rough roads, the company said. The moving carriage has both vertical and lateral greasable rollers and Teflon coated top rails on the dolly frame. These features are necessary to ensure the carriage is free to slide as the crane negotiates corners, further reducing strain on the crane boom. It is lighter weight than other crane dollies its size making it more efficient for the self-propelled crane to tow.
It has five axles to meet specific weight regulations in the jurisdictions Mammoet Crane operates. Both 12 volt and 24 volt lighting systems are fitted to ensure compatibility with any crane manufacturer's lighting specifications.
In addition to all the safety features, the crane dolly has ergonomically designed stairs on both sides and safety tread plate throughout to further improve operator safety while connecting and disconnecting the crane boom from the Aspen crane dolly.