Cold recycler WR 2500 S

High-performance cold recycler for recycling entire carriageway structures while adding various binding agents, such as cement, bitumen emulsion or foamed bitumen. The WR 2500 S is also eminently suitable for stabilizing non-cohesive soils with lime or cement. It is optionally available with a working width of 3,048 mm.

Many options for binding agents

The microprocessor-controlled injection system is capable of drawing water, bitumen emulsion, and hot bitumen for the production of foamed bitumen from preceding tanker trucks to inject them into the cold recycler's mixing chamber in precisely metered quantities.

Injection bars for binding agents

Binding agents are added via special injection bars in accordance with the machine's advance speed. The injection bars distribute water, bitumen emulsion or cement slurry evenly across the full working width.

Injection system for binding agents

The operator keys in the specified quantities of the binding agents to be added at the clearly structured control panel of the electronically governed injection system, which is entirely controlled by the microprocessor.

Foamed bitumen system

Foamed bitumen is produced by injecting water and compressed air into hot bitumen in special expansion chambers, and is then injected into the cold recycler's mixing chamber in precisely metered quantities. All components transporting hot bitumen are heated.

Automatic cleaning of nozzles

The injection nozzles are cleaned automatically, thus ensuring process safety. Tappets clean the nozzles in the injection bars at pre-determined, short intervals. This feature prevents clogging of the spraying nozzles.

Highly precise flow meters

Non-contact flow meters govern the quantities of hot bitumen, water and bitumen emulsion to be added. A mass flow meter determines the hot bitumen quantities, while volumetric flow meters are available for water and bitumen emulsion.