Lifting heavy equipment is a precision job. You can imagine that the slightest failure in lifting a 100tons piece will have disastrous consequences. In heavy lifting operations the two most important parameters are the total mass and the mass distribution. These may be calculated but can also be checked with a real time weighing unit. During a lift, the stress on the loads and the centre of gravity may change. The lifting plan may call for tandem operations of several cranes or the application of special handling devices like frames. Other aspects that are addressed are the limited free space to rig and move cranes, maximum allowable ground pressure, maximum lifting radius and the vulnerability to changing wind conditions.

Our customers benefit the versatile and full range crane fleet and lifting systems (see chapter machinery moving) all over the world. For example; crawler cranes are self propelled and can change the lift position quickly. The Demag CC 12600 can even move with the load on the hook. Containerised ring cranes are designed to lift very heavy loads, even at a large radius. However, the ground pressure is kept to a minimum. Gantry systems can lift or pull very heavy loads and displace them to the desired position.