The maximum capacity of the Potain MCH 125 hydraulic luffing jib tower crane is 8 t, while the maximum jib length is 50 m. Tip capacity is 2 t and maximum line speed is 100 m/min when fitted with the 60 LVF 20 hoist. The design of the crane offers a number of advantages, including fast erection and dismantling. The topless design means less space is needed on site, as there is no cathead to assemble at ground level before installation.
The crane utilizes Potain’s VVH hydraulic luffing technology for vertical movement of the jib, eliminating the need for luffing wire ropes. With VVH technology, the MCH 125 raises from a horizontal level to 87˚ in less than 2 minutes. The hydraulics are pre-connected at the factory, avoiding the need to perform this duty during the crane’s on-site assembly.
The hydraulic luffing design allows for a shorter counter-jib and out-of-service radius when compared with rope-luffing alternatives, freeing up space on congested job sites.
Crane operators gain increased comfort and visibility with the unit’s Vision 140 cab, one of the largest cabs on the market. The entire upperworks of the crane, including its full 50 m of jib, can travel on just four trucks. Assembly to a height of 40 m can be achieved in less than 6 hours.
The operation is smooth and quiet. The tower crane can be mounted on existing 1.6 m or 2 m mast sections from Potain's current range. Jib sections are from the MCR range of luffing jib cranes. There are five jib configurations available, ranging from 30 m to 50 m, in 5 m increments.