The Pilot Crushtec range is spearheaded by the Twister series of vertical shaft impact crushers (VSI’s). The largest, the AC210 model is available with a range of rotor and crushing chamber options. This unit forms the basis of the world’s first production track mounted VSI – the Twister Trac.Vertical shaft impact crushers have been the backbone of the Pilot Crushtec product line up for more than fifteen years with the Twister crusher having established itself as a leader in vertical autogenous rock-on-rock crushing technology.Twister crushers produce cubical shaped, high quality aggregate and sand that meets today’s demanding specifications in contracting, civil engineering and construction projects. These crushers offer enhanced gradation control and are commonly used for the production of fines in industrial and pre-milling applications.It is this combined understanding of VSI technology and changing customer needs that saw Pilot Crushtec develop the first fully mobile tracked VSI crusher. Add to this a VSI crusher that offers significantly reduced maintenance and lower operating costs, and it is easy to understand why a number of these units have been sold both in South Africa and internationally, including a number in New Zealand.The Twister Trac, tracked VSI crusher has been engineered from the ground as a fully portable machine, unlike many so-called mobile crushers which are static machines adapted to accommodate the need for mobility.