The F4 is a mounted fertiliser spreader offering precision across working widths starting at 24m. It has a hopper capacity of 1500-4000 litres, designed to withstand very heavy loads with its heavy duty undercarriage. This machine is designed to meet various requirements for graduated fertilisation, border and headland spreading and spreading in both wedges and leftover areas. F4 spreaders, spread according to the quadruple overlap principle where each disc spreads across a double working width. At a speed of 1000rpm the fertiliser particles accelerate up to 250km/h.