The range also includes a mobile harbour crane with a high gantry that is also based on the double jib system.

Responsibility for the business was then gradually handed over to the sons Max, Robert, Rudolf, and Paul.

In 1913 all four sons were made equal partners and the company’s title was changed to Ardeltwerke GmbH.

[2] The special feature of this jib system is that the hook remains at a constant height when the direction is changed.

The machines and equipment in the nationalised Ardeltwerke in Eberswalde were dismantled in 1945 to contribute towards reparations and transported to the Soviet Union.

In 1948, as a state-owned enterprise the company called itself ABUS – Kranbau Eberswalde – VEB and started producing cranes again with 37 employees.

Subsequently, Kranbau Eberswalde was integrated into the newly founded TAKRAF combine of state-owned enterprises.

In the following years and until 1989, Kranbau Eberswalde mainly supplied cranes to the USSR, but also to South America, Africa and Europe.

For the GDR, crane construction in Eberswalde was a successful source of hard currency.

As a result, towards the end of the GDR, the machines and equipment were outdated and no longer adequate enough to allow the company to continue development in reunified Germany.

In the same year the company was awarded the Berlin-Brandenburg Innovation Prize for developing the feeder server, the world's first mobile container bridge.