There’s simply a demand for this type

From Bauma 2016 into the field: the new MBRG 2000 granulator from BENNINGHOVEN went straight from the trade fair to its first job sites – in the service of Heitbrink GmbH & Co. KG.

The new BENNINGHOVEN granulator generation: the mobile MBRG 2000 granulator (shown here) and the stationary SBRG 2000 prepare RAP for reuse.

It is becoming ever more important to use resources responsibly. With more roads being rehabilitated than built from scratch, this also applies to the recycling of asphalt. Heitbrink Recycling is a pioneer in the processing of RAP and operates a total of 8 BENNINGHOVEN granulators. The company was also the first to buy the new, improved MBRG 2000 granulator. Thanks to BENNINGHOVEN‘s innovative parallel drum with hot gas generator, RAP material rates of more than 90% are now possible. This requires that the milled material or asphalt blocks are granulated as precisely as possible into separate aggregate fractions for each type of layer while minimizing fines. It is little wonder, then, that “there‘s simply a demand for this type,“ as Managing Director Martin Heitbrink reports: since its handover after Bauma 2016, the trade fair exhibit has been in uninterrupted service.

"The more gently the granulate is processed, the more RAP remains in the cycle."
Martin Heitbrink, Geschäftsführer Heitbrink GmbH & Co. KG

Heitbrink Recycling is a contractor that operates the MBRG 2000 on behalf of a number of mixing plants.

130,000t in six months

“Even just six or so months down the line, it‘s clear that the investment is paying off,” says Martin Heitbrink. His team has already taken the new MBRG 2000 on a tour of Germany: the unit tackled 11 jobs on behalf of eight different mixing plants, granulating 130,000t of RAP. That corresponds to an average output of 135t/h – a compelling figure for the contractor. Martin Heitbrink is suitably enthusiastic: “Our new granulator has been in constant use. The unit has mainly travelled to a number of asphalt mixing plants in Germany, most of them in the southern part of the country.“

MBRG 2000 granulator impresses customers

„Wherever the granulator appears, it always wins fans,“ Heitbrink adds. The effective hourly output and the high RAP material rates speak for themselves. He points out another important benefit of the MBRG 2000: “The more gently the granulate is processed, the more RAP remains in the cycle.“ That is one of the great strengths of the new granulator, which has already proven its worth in a very wide range of applications: “Whether it‘s tackling blocks removed by excavators or asphalt milled off separately for each type of layer, the MBRG granulates RAP with maximum precision.“

Highlights of the BENNINGHOVEN MBRG 2000 Granulator

  • Gentle granulation in defined grain sizes (0–8, 8–16, 16–22mm)
  • Coarse grain structure and low fines content
  • Reduced caking of material in the mixing plant
  • High output of up to 200t/h
  • Low dust and noise generation
  • Integrated self-regulating control system supports one-man operation by the wheeled loader driver
  • Low operating costs and low degree of wear and tear

Precise granulation in defined grain sizes

The RAP proportion depends to a large extent on its grading curve, i.e. its constituents in terms of quantity, size and composition. The aim is to bring the grading curve of the granulated RAP as close as possible to the desired grading curve of the end product, finished asphalt. The BENNINGHOVEN granulator is the technology of choice because it generates a very low fines content. Thanks to the integrated 2-deck screen, two grain sizes can be produced – and with a particularly high coarse content (16–22mm).