HL 4000T Rear Subsoiler

The HL 4000T is a rear-mounted subsoiler from DUTZI's HL series, working on the same principle as the front subsoiler: narrow tools, steep inlet, funnel-shaped ripping without soil mixing. The machine uses identical 7-8 cm narrow tines, leading disc coulters, and hydraulic depth adjustment via the tractor's rear hydraulics. The effect is the same: funnel-shaped soil opening, hairline cracking, activation of soil life, and improved water infiltration. The disc coulters with support rings running in front of the tines open the soil and guide the machine at the correct depth. The HL is designed for operations with limited tractor power, requiring less traction than combined systems. The tools work only up to the respective compaction zone, typically to a depth of around 35 cm, and not to the maximum depth of 60 cm. The bearings are sealed in multiple stages, the frame is robustly constructed, and tools are interchangeable and available long-term.