This Dynapac D.ONE is a used walk-behind compactor — also commonly referred to as a trench roller — offered from Iowa, USA, and priced at $51,790. Walk-behind compactors of this type are purpose-built for compacting soil and backfill material in confined spaces such as utility trenches, where larger ride-on rollers cannot operate. Dynapac is a well-established manufacturer of road construction and compaction equipment, producing a broad range of rollers, pavers, and compactors for civil engineering and infrastructure applications worldwide. This machine was built in 2024 and is offered in used condition.
At the core of this machine is a 12.8 hp Kohler diesel engine paired with a 63-gallon fuel tank, providing the sustained power needed for extended trench compaction work. Drive is handled by a two-speed hydrostatic system, giving the operator smooth and stepless speed control across both forward and reverse passes. Operating weight comes in at 3,516 lb, and the unit generates 16,200 lb of centrifugal force — a substantial output that delivers effective compaction in cohesive soils. The padded drums measure 20.5 inches in diameter and 33.5 inches in width, and roller extensions are included with the machine, allowing the working width to be adjusted for tighter or wider trench profiles without requiring additional equipment.
The D.ONE is operated via radio remote control, which enables long-range, barrier-free connectivity and eliminates the need for the operator to descend into the trench for routine tasks including engine start and stop. The remote system is described as insensitive to weather conditions and capable of operating reliably in extreme sunlight. Compaction performance is delivered through a directed oscillator vibratory system fitted to both the front and rear drums, with a choice of high and low amplitude settings. This is complemented by Automatic Vibration Control (AVC), which automatically regulates travel speed and vibration frequency to optimize compaction results in varying soil conditions.
Additional features noted include an ECOmode that reduces diesel consumption by modulating engine speed during operation, a maintenance-free articulated joint that requires no daily lubrication, on-board diagnostics to support rapid fault diagnosis, and a fully enclosed exciter housing with heavy-duty hydraulics designed to extend the service life of the vibratory system. A smooth drum attachment option is referenced as providing flexibility for specialist applications beyond standard trench compaction.
This description was generated automatically from the listing details and may not reflect every specification. Please confirm with the seller before purchase.