New In 2018 26kW Electric Motor 30kVA Diesel Generator Feed Conveyor Discharge Conveyor he Stonefex stone separator gets stones and other inert material out of biomass fuels dependably and with high separation efficiency. The input material is the useful biomass fraction from a screen, like woody green cuttings, screen overflow from compost or forestry chips. A patented system of pressure and suction blower generates exactly the right air flow in the separation chamber to remove stones from the wood. The blowers and discharge conveyors are electrically powered, reducing energy costs and minimizing maintenance effort. The Stonefex is offered in mobile and stationary versions.