Tractor-towed stabililzer WS220 and WS250
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The powerful unit for effective soil stabilization Tractor-towed stabilizer WS 220 and WS 250

Boost up your tractor to become a stabilizing pro Getting you started successfully in soil stabilization Soil stabilization has been proving its worth for many decades as an economical and environmentally friendly method. The WS 220 and WS 250 tractor-towed stabilizers from Wirtgen enable you to turn your tractor into a perfect soil stabilizer with only a few simple flicks of the wrist. The compact unit converts instable ground into valuable construction material, improves compactability, and dispenses with the necessity of expensive soil exchange. It impresses with its intelligent design...

2 // 3 Low fuel consumption, high performance Flawless mixing results and perfect levelling are the hallmarks of the tractor-towed stabilizer Soil stabilization is gentle on both the environment and the climate Because of the low capital expenditure involved, the combination of towed stabilizer and tractor is ideally suited in particular for small to medium-sized construction projects. The solid drive concept with high efficiency considerably reduces fuel consumption rates. The milling and mixing rotor homogeneously mixes the soil with the binding agent, guaranteeing powerful operation that...

Ready to get started in no time at all How to easily convert a tractor into a state-of-the-art soil stabilizer Simple mounting principle … attach top link, and here goes! Hook up via three-point hitch, connect power take-off … It happens every day: The tractor, used as a towing unit just a minute ago, needs to be converted into a soil stabilizer as quickly as possible. This requirement necessitates a simple yet practical attachment system for the milling and mixing rotor unit: Being geared to flexible and effective operation, the tractor-towed stabilizer from Wirtgen offers the ideal...

4 // 5 Variable stone guard The rotor housing is additionally equipped with a variable stone guard at the front. The stone guard protects against flying stones and reduces the development of dust. The stone guard is hydraulically adjustable in height and can be individually adapted to prevailing conditions. Reducing the development of dust The stone guard is proving its worth in operation: no flying stones and less dust … and can be adjusted to the stabilizer’s current working depth The stone guard consists of fatigue-resistant hard rubber …

Maximum efficiency through mechanical belt drive High efficiency guarantees low thirst for fuel The success of our tractor-towed stabilizers is guaranteed by their being able to thoroughly mix even the heaviest soils. This is ensured by the powerful, mechanically driven milling and mixing rotor, which homogenizes the material effectively across the full working width and evenly mixes in the pre-spread binding agents like lime or cement. Belt drives are arranged on both sides of the milling and mixing rotor. This dual drive concept translates engine power into optimum milling performance. In...

6 // 7 Dual mechanical belt drives make full use of the engine power to achieve high efficiency. The stabilizer’s intelligent drive concept has the positive side effect of reducing the tractor’s fuel consumption. The spring-loaded belt tensioner ensures optimum transmission of power at all times. Translating power into productivity Powerful belt drive for full power at working depths of up to 500 mm Low-maintenance belt tensioner

Lots of know-how in the milling and mixing rotor HT11 – an option that will pay for itself quickly Alternative solution with welded toolholders The HT11 quick-change toolholder system significantly reduces operating costs of the machine The milling and mixing rotor – heart of the tractortowed stabilizer – can optionally be equipped with the tried-and-tested HT11 quick-change toolholder system for tough everyday use on the construction site. With this system, Wirtgen builds on its experience of many years in cutting technology. A precisely defined arrangement of the cutting tools on the...

8 // 9 Ideal for tough operation Strong retaining bolt prevents unwanted loosening of upper part Conical pressure stud for reliable transmission of clamping force Seal to allow simple and quick insertion/ removal of upper part Chip breaking rib for additional crushing of milled material Optimized shaft angle geometry for improved component strength Wear markers at 5 mm intervals for improved monitoring Upper part covers bottom part completely to minimize deformation of contact surface Contact surface increased by 75% for improved durability of bottom part Protective plug prevents soiling of...

Perfect running characteristics – whatever the ground Difficult ground conditions – no stumbling block for the “WS” Height-adjustable side plates enable the milling and mixing rotor to penetrate the soil to the specified working depth right from the start. During the stabilizing operation, the side plates move over the surface on skids. This intelligent design prevents the side plates from being pulled through the recycled material idly and sapping power needlessly. In addition, the compact machine is distinctive for its robust, weight-saving design. The hydraulically height-adjustable side...

10 // 11 Going smoothly all the way Highly wear-resistant steel used in the production of the machine guarantees robustness and a long life in tough everyday operation on the job site. Side plates moving over the surface guarantee that the available power is fully used for driving the milling and mixing rotor. The operator can raise the side plates via hydraulic cylinders, if required. The current working depth can be monitored conveniently from the tractor’s cab at all times via the optional digital milling depth indicator. Ultrasonic sensor (option) of the digital milling depth indicator...

Homogeneous mixing quality guaranteed High conveying capacity and material flow The WS 220 and WS 250 tractor-towed stabilizers from Wirtgen are the most powerful stabilizers in their class. This is attributable, to a significant extent, to the highly practical mixing chamber design, which greatly contributes to the homogeneous mixing of binding agents and soil. The shape of the rotor housing and the high-set drum flap have been adapted to the milling rotor so as to enable powerful conveying of the stabilized material. The excellent material flow results in a tremendous boost in...