Particulate material haulage arrangement

A particulate material haulage arrangement comprising:

• a frame configured for operative attachment to a suitable tractor, and defining a tray for operatively receiving particulate material therein, said tray comprising two side walls separated by a loadbearing lower section with a headwall at a head end of the tray and slidably arranged in-between the side walls;
• an urger at the head end configured to operatively urge the headwall to slide across the lower section;
• a foldable floor slidably arranged on the lower section and fast at a first end with the headwall;
• and
• a retractor arranged at an ejection end of the tray and configured to continuously retract a second end of the foldable floor underneath the lower section whilst the headwall is urged, wherein the retractor comprises a spool at the ejection end and underneath the lower section onto which the floor is wound during retraction, said spool configured to agitate the floor by having a particular cross-sectional profile of a Reuleaux triangle, the spool including an internal gear arrangement to facilitate in agitating and spooling of the floor during retraction to counteract adhesion of particulate material ejected from the tray.