Iowa Mold Tooling (IMT) has introduced new 40 t and 50 t class models to its lineup of truck-mounted articulating cranes. Featuring “excellent lift-to-weight ratios, long-reach capabilities and minimised space requirements”, the cranes provide mining and other heavy industry customers with powerful, flexible new options to meet their specific application needs.The 40/275 crane provides a maximum lifting capacity of 8.63 t, while the 50/345 model delivers a maximum lifting capacity of 10.36 t. The 40/275 and 50/345 models can be equipped with up to eight hydraulic extensions for maximum horizontal reaches of 21.3 m and 21.4 m, respectively. The minimised dimensions and lower weight of these cranes allow for additional truck configuration possibilities and increased payload. “IMT is dedicated to offering a spectrum of crane options to match unique customer needs,” said John Field, product manager of material handling at IMT. “The new 40 t and 50 t articulating crane models meet customer demand for particular lift and reach capabilities, minimised space requirements, robust safety features, ease of maintenance and low maintenance costs.”

The 40/275 and 50/345 models feature ultra-high tensile steel that provides lower weight, high lift capacity at long reaches and increased payload capabilities. The mounting space required has been reduced to 1,148 mm and 1,198 mm, respectively, expanding truck configuration possibilities. The 40/275 and 50/345 cranes feature a dual power plus link arm system (DL), which is well suited for long reaches and lifting in high positions with demanding equipment (such as fly-jib and winch). In addition, the DL system provides precise and regular movements in the entire working area while offering the best lifting capacities under almost any working conditions.

Another feature of the 40/275 and 50/345 models is “over-bending,” which means the working area between the main boom and the outer boom is no less than 195 degrees. Over-bending offers greater flexibility when working through narrow passages and under overhead obstructions, the ability to lift maximum loads in all boom positions, and a lower total height when the crane is stowed on the truck body. A key safety feature standard on all IMT articulating crane models is the RCL (rated capacity limiter) 5300. The RCL system monitors the crane’s load moment, operation and function. In an overload situation, the system warns the operator and interrupts the distribution of oil for crane functions, while allowing functions that reduce load moment to remain operational. The RCL 5300 cooperates with the user and compensates when the RCL senses a situation requiring intervention. The system not only monitors safety during crane operation, but also crane position during transport (stabilisers and boom position).