Transfer just about anything with the 3510 Agri-Vac, Walinga's proven, portable bulk transfer unit. Filling the void between consumer grade shop vacs and Walinga's massive industrial systems, the portable 3510 Agri-Vac is the ideal clean-up and reclamation unit for large production facilities and mills. It's small, built with fork-lift pockets and will fit in the back of a pick-up truck. The 3510 Agri-Vac will clean out a pit when that grain legs decides to quit, it's small but it's mighty, moving corn up to 700 bu/hr (18 tonnes/hr)! Ready, day in and day out, to make light work of the heaviest tasks. Built to run hard and run often, properly maintained, these units will last for generations. Speaking of maintenance, now available with Air-Purge, filters cyclically self-clean in real time extending filter maintenance intervals to annually or every 400hrs.