The Klaas boom system

The most striking trademark of a Klaas crane is its boom. This consists of high-strength aluminium profiles made from a special alloy and is produced in the stir welding process. It thus provides a strength as if milled from solid metal, a long service life and low maintenance costs. Its low net weight ensures outstanding reach

Another feature of our aluminium cranes is the extremely strong fly jib. When extended, it significantly increases the maximum hook height and enables a high lateral outreach. This means that even rear roof areas can be supplied with material if scaffolding or eaves prevent the main mast from being extended far. Almost all Klaas truck cranes and our largest trailer crane are equipped with a hydraulically telescopic fly jib that can be extended and retracted at the push of a button and virtually in mid-air.

The patented Klaas winch technology enables quick and secure telescoping of mast and fly jip. And this, of course, also under load both in crane and platform operation. Four telescopic ropes are assembled on a single drum, whilst the track system is fixed into the cable technology. As the cables are guided and electrically monitored, slack ropes and skipping are prevented. An integrated electronic length measurement constantly records the current extension length of the mast and uses the data to calculate the maximum possible load capacity.