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Crush + Size Technology

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ACR Asphalt Crusher

Asphalt Processing – A New Level

ACR TECHNOLOGY

Target grain sizes of < 80 mm

Handling asphalt slabs and chunks puts processors in a difficult position: the material needs time-consuming pre-crushing before it can be fed into a crusher. At the same time, recycling asphalt or tar demands gentle, reliable processes that preserve the valuable matrix aggregates.


With the ACR, Crush + Size Technology took on both challenges at once: combining the complex handling of milled material, broken-up asphalt and asphalt slabs with gentle crushing – in a single machine. The goal: processing road reclaim in all its forms – slabs, chunks or milled material – continuously and at high quality, producing a coarse end product below 80 mm.

ACR Crush + Size
ARC Asphalt Crusher Crush + Size at work

EFFECIENT AND GENTLE CRUSHING TECHNOLOGY

Depending on machine size, edge lengths up to 1,200 mm and thicknesses of 400 mm can be processed efficiently. Even with a high proportion of asphalt slabs, the integrated multi roller sizer prevents bridging and actively feeds the slabs toward the pre-crushing roller. Its large-protruding rip teeth break slabs directly into coarse fragments – pre-sized optimally for the integrated secondary roller crusher.

When the feed contains a high proportion of milled material, most of it is already gently processed to target grain size by the multi-roller sizer before reaching the crushing stage. This means the feed material – in all its different forms – can be processed reliably and simultaneously.

Feed material can be loaded directly or via a separate feeding system. The complete unit meters the material flow to downstream conveying equipment.

The gentle crushing process of the ACR produces an end product with minimal increase in fines and sand fractions – achieving the highest possible recycling rate by preserving the valuable aggregate structure.

EFFICIENT DOWN TO
0–8 MM WITH
SGC-SAND AND GRIT CRUSHER

For further gentle processing of asphalt granulate in the 0–63/80 mm range, our SGC technology is the ideal next step. In a single pass, grain sizes <22mm, in a closed circuit even <8mm can be produced. Feed grain of 0–63 mm is processed into granulate fractions. Depending on the target grain, coarse gravel with good grain shape is also produced. This processing step uses two rollers – gentle on the material and with minimal increase in fines.

THE ADVANTAGES AT A GLANCE

direct feed capability

handling and crushing combined in one machine

gentle crushing process

low fines, coarse end product

low dust generation

low dust and noise emissions

hydraulic gap adjustment with overload

easy maintenance via hydraulic upper roller lift

efficient drive technology

low energy consumption

At a glance

Technical Characteristics

Crushing gap

Adjustable

Flexible adjustment of the crushing gap to define the final grain sizes and compensate for wear

Overload protection

Integrated

Each crushing section is individually protected via hydraulic gap adjustment, slipping clutch, and automatic reverse operation

Reversing operation

Automated

Blockages are removed automatically

Crushing tools

Quick-Change System

Crushing segments and chisels can be changed individually

Control system

Fully automated

The machine is fully automated and can be integrated into the higher-level control system

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