The difference lies in the method of paving:
When using the WIRTGEN cold recyclers of the CR series, an asphalt paver is usually used. The homogeneous material prepared by the cold recycler is transferred directly to the asphalt paver’s material hopper, where it is paved and pre-compacted.
With the WR series of cold recyclers, an additional paver is not required. Before compaction, the material is finely profiled by a grader.
All cold recyclers are supplied by water and, if necessary, emulsion or bitumen tank trucks driving ahead of them.
Recycling with cold recyclers CR
The WIRTGEN cold recycler transfers the RAP directly to the paver's material hopper for paving. This is followed by compaction.