New in Potain's GME range of top slewing tower cranes is the luffing jib MR 295. Three versions are available of this model and lifting capacity is up to 28 tons and maximum radius is 197 feet where 3 tons can be lifted.
Designed to be particularly suitable for work on sites where space is at a premium, in addition to its luffing capability, the MR 295 on a 20 foot base uses a 6 x 6 foot mast. This size of mast gives several advantages in that it helps make the crane lighter, cheaper and easier to erect, dismantle and transport. The heaviest component is 12 tons, a Manitowoc Crane Group spokesperson explained.
The lifting charts show that on a 180 foot jib the MR 295 H16 has a maximum lifting capacity of 18 tons on four falls of rope out to a radius of 74 feet while on a 197 foot jib and two falls of rope it takes 9 tons out to 121 feet. At the maximum 197 feet the capacity is shown on the chart as 3 tons.
Next up is the MR 295 H20, which, on a 164 foot jib lifts 22 tons on four falls out to 18.9 m and 10 tonnes out to 62 feet on two falls and a 197 foot jib. At the maximum 197 feet the capacity is shown on the chart as 3 tons.
Finally, the chart for the MR 295 H25 shows it lifting its maximum of 27 tons on a 148 foot jib and four falls of ropeout to a 49 foot radius. On a 197 foot jib and two falls of rope it lifts 13 tons out to 88 feet and 2.7 tons at 160 feet.