This Hitachi KH125-3 of Van 't Hek was used as assist crane by the Woltman THW 7528-D on a construction site in Heerhugowaard (NL).
It is a 35 tonne crane whose Van 't Hek is owning about 8 pieces.
The tracks are 5 meters long and the undercarriage is 4 meters wide.
As engine is a 150 hp HINO H06C-T used.
Here is a powerpack of the Renault of Peter Ahrens hoisted.
With this crane are the drilled HEK-piles filled with concrete after the rebar is hang in.