Successful Projects
A BOMAG tractor-towed stabilizer can mix in binding agents homogeneously and stabilise non-load-bearing subsoils. The machines are typically used on small to medium-sized road and path construction projects, but are also often the first choice for subsoil and soil improvement work.
The Welzel horse farm specialises in giving young horses the best possible start to a healthy life. Daily exercise is essential for the animals’ welfare—it strengthens the musculoskeletal system, stimulates the metabolism and promotes healthy joints.
A paddock allows the horses to move about freely when the pastures are closed and in winter. But to prevent the young animals from standing in mud during the colder months, the ground needs to be well drained and provide secure footing.
The Welzel farm lies on the edge of the Westerwald region, where winters are particularly wet. In spring 2026, a new 3,000 m² paddock was due to be built. Heinrich Lauber GmbH from Dillenburg in Hesse was commissioned to carry out the work. However, the existing ground conditions posed a challenge: the very soft subsoil required improvement.
Almost any soil can be improved if you use the right binding agents—even to the point of frost-resistance. Lutz Stallgies, Business Development Manager for Recycling, BOMAG
To consolidate the new paddock, a thick layer of asphalt and crushed stone was applied to create a granular base. The special binding agent GeoSol 50® was then spread and, with the addition of water, milled evenly into the prepared soil layer.
The aim was to achieve rapid moisture reduction through a precisely measured proportion of reactive fine lime (20 kg of GeoSol 50® per square metre of paddock area), thereby improving the soil structure and compaction properties of the site.
BOMAG’s tractor-towed stabilizers are tailor-made for this type of work. What’s more, the same tractor itself can serve multiple purposes: It tows the water bowser, the binding agent spreader and the stabilizer— making the 'tractor plus unit' combination particularly economical.
At the horse farm in Herborn, the BOMAG RS 300 tractor-towed stabilizer was pulled by a 440 hp machine. With a diameter of almost 1.5 m, the generously sized milling rotor enabled very high working speeds. The RS 300’s long tool carriers also delivered maximum feed rate—even on such cohesive soil. At a flap setting of 50%, the BOMAG RS 300 produced a very homogeneous mixing result.
The binder spreader—a yellow BOMAG BS 3—was mounted on the front of the tractor. Although the spreader can also be rear-mounted, fitting it on the front creates a particularly powerful yet very compact combination with the RS 300 tractor-towed stabilizer. This combination can be operated by a single machine operator— a further cost saving.
The system works independently of travel speed and is both lightweight and highly manoeuvrable. Its radar sensor measures the tractor’s actual speed and automatically adjusts the spread rate.
The combination is highly manoeuvrable. We can work right up to the paddock boundary. Even with the front-mounted spreader, we can still get into every corner. Christopher Meyer, Lauber GmbH
The BS 3’s binder tank can be filled quickly and cleanly before use—either from above using big bags (the hopper flap opens fully), or using compressed air directly from the silo vehicle. A dust filter is optionally available.
After stabilisation, the 3,000 m² paddock area was levelled with a crawler. A BOMAG BW 213 BVC-5 single drum roller carried out the final compaction work. The operator simply had to set the target value; the system then automatically adjusted compaction to that level. The display also indicated when no further passes were needed.
Although the rollers' depth effect was the main priority on the paddock, BOMAG single drum rollers with VARIOCONTROL can do far more: with VARIOCONTROL, the amplitude can be precisely adapted to the demands of the surrounding environment and job site conditions.
BVC single drum rollers are capable of extremely powerful compaction in open terrain, but can also work in an equally controlled manner in sensitive areas. This is made possible by a special exciter system. Its scope ranges from purely horizontal vibration for gentle surface compaction—or for low-vibration compaction near buildings in oscillation mode—to vertical vibration for maximum depth effect.
When the amplitude is increased to maximum, the BOMAG BW 213 BVC-5 single drum roller not only meets the requirements of its weight class but also handles the applications of even heavier machines. Compared with a standard roller equipped with a conventional circular exciter system, VARIOCONTROL delivers 20% higher compaction performance.
Soil stabilisation measures aim to improve compactability and, as a result, increase the load-bearing capacity of the soil, while also protecting it against the re-ingress of water.
Mixing in lime can transform a moderately load-bearing subsoil back into readily compactable soil. The binder reduces the moisture content of the in-situ soil, significantly improving its compaction properties. This is the mix-in-place method.
The spreader and stabilizer units developed by BOMAG are the ideal tools for this purpose and a perfect addition to the fleet of any construction company or contractor specialising in earthworks. Anyone who can then complete the subsequent compaction work with a BOMAG single drum roller is fully and ideally equipped for any special contract.
