Operating principle in situ

A modern cold recycler - here`s how it works

  1. All-track drive for optimum traction

    Intelligent track speed control including hydraulic all-track drive for optimum traction.

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  2. Outstanding engine power

    Engine performance of 708 kW / 963 PS and intelligent machine management system for high advance rates.

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  3. Different working widths

    Different working widths for a wide range of applications.

  4. Recycling traffic lanes at full width in a single pass

    In-situ recycling of 3.8-m wide traffic lanes in a single pass.

  5. High precision injection systems

    Highly precise injection of water, water-cement slurry, bitumen emulsion or foamed bitumen for maximum flexibility in operation.

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  6. Cold milling machine and cold recycler in a single machine

    3800 CR suitable for operation as a powerful cold recycler with a working width of 3.8 m or as a high-performance cold milling machine.

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  7. Heavy-duty milling rotor unit

    Rotor housing, side plates and scraper blade from extremely wear-resistant materials for tough operating conditions.

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  8. Flexible conveyor system

    Hydraulically slewing and heightadjustable discharge conveyor for optimum material loading.

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  9. Clearly structured, ergonomically designed operator's platform

    Ergonomically designed operator‘s platform offering flexible positioning of the control panels on the left or right side as well as in both working directions for perfect visibility.

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  10. High milling and mixing performance

    Heavy-duty, high-performance milling and mixing rotor for the production of homogeneous cold mixes.

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  11. High-precision "LEVEL PRO" automatic levelling system

    LEVEL PRO levelling system including milling depth sensor for high-quality, highly accurate milling results.

When equipped with a paving screed, the “Rear Load” cold recycler is capable of using not only the standard up-cut process for recycling but also the down-cut process developed by WIRTGEN. When using the down-cut process, the milling and mixing rotor operates in the recycler’s direction of travel.

Where specified, cement is pre-spread by a Streumaster binder spreader which is followed by water and binder tanker trucks. The milling and mixing rotor granulates the asphalt layers to a depth of up to 15 cm. The pre-spread cement is mixed in at the same time while water and bitumen emulsion or foamed bitumen are injected into the mixing chamber via injection bars. The recycled material is spread across the entire working width by a spreading auger and placed true to line and level by the integrated VÖGELE paving screed. Compaction is then effected by HAMM rollers.

Highlights

  • Compact recycling train ideally suited to working in urban environments.
  • Short material handling times for ease of operation and full control of the work process.
  • Simple modification allows recycling in up-cut or down-cut mode.
  • The 3800 CR can also be used as a cold milling machine (with conveyor system).
  • Reduced labour requirements.

Where specified, cement is pre-spread by a Streumaster binder spreader which is followed by water and binder tanker trucks. The milling and mixing rotor granulates the asphalt layers to a depth of up to 18 cm. The pre-spread cement is mixed in at the same time while water and bitumen emulsion or foamed bitumen are injected into the mixing chamber via injection bars. The recycled material is picked up by the loading conveyor and transferred right into the material hopper of the VÖGELE asphalt paver which places it true to line and level. Compaction is then effected by HAMM rollers.

Highlights

  • Optimum material management thanks to flexible loading concept enables paving true to line and level.
  • State-of-the-art VÖGELE paving technology for highest quality standards.
  • High compaction thanks to the paver’s tamper and pressure bar.
  • The 3800 CR can also be used as a cold milling machine (in up-cut mode).

Key benefits of high-performance cold recyclers

As a pioneer in cold recycling, WIRTGEN is passionately committed to this environmentally-friendly and economically efficient method. The technological lead we have gained in this complex sector enables us to maintain the functional properties of roads in the long term.

Recyclers are capable of high production rates that significantly reduce construction times compared to most alternative rehabilitation methods.

Recyclers are capable of high production rates that significantly reduce construction times compared to most alternative rehabilitation methods.

The full recycling operation can be accommodated within the width of one traffic lane. On roads with two lanes, recycling is usually undertaken in half-widths with one-way traffic accommodated on the opposite half during working hours.

On roads with two lanes, recycling is usually undertaken in half-widths with one-way traffic accommodated on the opposite half during working hours.

Consistent, high quality mixing of the in-situ materials with water and stabilising agents is achieved using modern recyclers. Micro-processor controlled spraying systems ensure the accurate addition of fluids (water and stabilising agents).

Consistent, high quality mixing of the in-situ materials with water and stabilising agents is achieved using modern recyclers. Micro-processor controlled spraying systems ensure the accurate addition of fluids (water and stabilising agents).

Market-leading and cutting-edge products for the Road and Mineral Technologies business sectors are constructed at the WIRTGEN brand headquarters in Windhagen, Rhineland-Palatinate. With its innovative, high-performance and cost-efficient products and technologies for cold milling, soil stabilization, hot and cold recycling, concrete paving and surface mining, WIRTGEN leads the world market in road construction and repair, as well as in mining natural rock and pay minerals.

© 2017 WIRTGEN GmbH