The Fundex F3500 is one of the largest machines in the range of Fundex multifunctional foundation rigs. The F3500 is used for a variety of drilling and pile-driving methods such as soil displacement drilling, CFA drilling, cast-in-situ and pre-cast pile-driving. The cabin can be swiveled out to provide a good view of the work. The extension pieces for the leader are fed in from the bottom, which is beneficial in limited spaces and makes for easy and fast installation. The strong tubular leader is suitable for torque of 500kNm over the entire length. Because of the unique leader construction, it is possible to lower the leader 35 meters beneath the soil level. Stability of the F3500 is high thanks to front and rear supports and a low centre of gravity. Because of the use of an additional powerpack the transport weight is low.