Emission-free operation: The binder (e.g., lime or cement) is applied directly inside the closed housing of the milling machine and immediately mixed into the soil. No dust is generated.

Use in sensitive areas: Thanks to the dust-free operation, the system can easily be used near residential areas, schools, hospitals, moving traffic, parked cars, or at airports, where conventional, dust-generating methods are often prohibited or problematic.

Weather independence: Work can also be carried out in windy conditions, as the binder is not blown away.

Protection of operating personnel: Dust exposure for workers on the construction site is drastically reduced.

One less vehicle required: A separate spreader vehicle is not necessary. The carrier vehicle (tractor) not only pulls the milling machine but also carries the binder in the integrated container (6 m³ capacity).

No material loss: The binder is applied exactly where it is needed – in the soil. No material is lost due to wind drift.

Avoidance of cleaning costs: Contamination of the surrounding infrastructure (roads, buildings, vehicles) by cement or lime dust is eliminated, as are the associated cleaning costs.

High energy efficiency: According to the manufacturer, Stehr machines require up to 50% less fuel than conventional systems. Amortization is often achieved through fuel savings alone.

Precise dosing: The binder is precisely dosed via a hydraulically driven rotary valve. Optionally, an on-board computer can control and document the amounts of binder and water down to the gram.

Homogeneous mixing: The variable mixing chamber adapts to the milling depth. The deeper the milling, the larger the mixing chamber becomes, resulting in a more intensive and homogeneous mixing of the material. This prevents the formation of binder "nests", which could represent weak points in the soil.

Optimal material structure: The efficient mixing technology achieves a better material structure, which increases the load-bearing capacity and lifespan of the stabilized soil.