Officially unveiled this week by Manitowoc are new 715 ton and 330 ton capacity crawler cranes. Both of the lattice boom models have the Variable Position Counterweight system previously seen on the USA-headquartered manufacturer's flagship model, the 31000.
The MLC650 has a maximum load moment of 3,887 tonne-metres, increasing to 9,052 tonne-metres with the optional VPC-Max capacity enhancement system. Maximum boom length is 341 ft. and the maximum luffing jib is 331 ft. Power is from a Cummins Tier IV Final engine.
The MLC300 is a 330 ton capacity model with a maximum load moment of 1,992 tonne-metres, increasing to 4,119 tonne-metres with the optional VPC-Max capacity enhancement system. Maximum boom length is 315 ft and maximum luffing jib length is 315 ft. Maximum boom and jib combination length is 472 ft. It shares a fixed jib with the MLC650. Also common to the two cranes are the counterweight slabs.
No carbody counterweight is needed on either of the new cranes which reduces set up time and the crane ships in fewer truck loads.
Author: Alex Dahm
Source: KHL Group