Scandinavian firm JF-Stoll says its modular construction design has enabled it to come up with a feeder for very narrow feed passages. On the company's latest ‘narrow' mixers, the discharge door has been moved from the side to the corner, so that the feed is placed behind the machine's wheel. This allows the mixer to deposit its load in a feed passage that measures just 2.5m wide. Model sizes range from 8-10m³ (single vertical auger) to 14-20m³ (twin vertical augers).