Techroq has 30 years’ experience in manufacturing a full range of VSI’s (Vertical Shaft Impactors), HSI’s (Horizontal Shaft I ... mpactors) and Screens for the local South African & International Construction, Aggregate and Mining Industry alike. Our Product range is of the highest quality and standards, The R-Type VSI Rotor is a high efficiency, production rotor and has one of the lowest operating cost per ton in the industry. Due to our all-in house manufacturing ethos, we can deliver high quality machines, spares and services at low cost and with short lead times. read more