Vermeer RT450 Trencher The RT450 provides a high performance ride on unit that is ideal for installing a range of utilities including: Irrigation Conduit Electrical cable Footings Communications Weighing in at 2.5T it provides excellent counterbalance thus allowing smooth operations in most soil conditions including heavy clay. It is also fitted with a 6 directional back fill blade making the backfilling easy and efficient. The trenching chain can be set up as requested providing cutting widths up to 200mm. The boom will cut to a depth of 1.2m.