Renowned corrugated packaging equipment manufacturer, serra, will again display its serrapid machine at sinocorrugated 2011. This revolutionary automatic system for the rotary die change has been a popular feature at previous sinocorrugated events and is again expected to be an exhibition highlight this year. With the serrapid, changing the rotary die for a new order takes only 30 seconds, thanks to the &ldquomushrooms&rdquo bolts that remain inside the cylinder. The serrapid system requires no maintenance and can be adapted to any machine.