In the VDH workshop, the machine is fitted with a special leader that is mounted on the jib of the crawler crane. VDH has developed a leader mount that is suitable for both tubular and lattice leaders. A special sliding table is also built onto the crane. This can be a central telescopic sliding table or a variant with two guide bars on the side of the machine. Additional hydraulic functions, control options and, optionally, additional winches are also added. Of course, a capacity calculation is carried out and, if necessary, additional ballast is fitted. As a variation of the additional counterweight, part of the ballast can be replaced by a powerpack frame or a powerpack frame can be placed on top of the counterweight.
In addition to the enormous flexibility you gain when a crane can also be used as a foundation piling machine, a PD piling rig offers even more advantages. It offers tremendous range: the PD machine can operate forward- or backward-leaning, with a maximum inclination of 4:1, depending on the leader length. The fact that the leader can be lowered makes it ideal for work where scaffolding or a pontoon is used.
Once the machine is built, everything is carefully tested and certified (EN 16228) so it meets the established standards and requirements. The customer receives a complete package with which they can get started straight away.