Shredder light fraction (SLF)

Experience is everything

ASR output material (magnetic)
ASR output material (magnetic)

Today, treating shredder light fraction (a common example being ASR: automotive shredder residues) requires compliance with a growing number of regulations. At the same time, cost-effectiveness for operators must be ensured. Cost-effectiveness depends on several parameters:

  • Price trends in the commodities market
  • Costs of landfill disposal or incineration
  • Quality of final products
  • Costs of operating the recycling plant

The goal of our plant technology, which is based on our Rotorshredder (type RS), is to separate heavily tangled composites and recover metal components. Next, the remaining fraction can be separated into mineral and organic components.

Our rotor impact mill (type RPMV) is a proven solution for processing particles up to approx. 25 mm. It ball-shapes metal components and subsequently enables extensive separation of throughput material into metal fractions and other materials.

Sorting shredder light fraction without first exposing it to mechanical stress will not produce the desired results. Fine-grained and dusty material have a high tendency to clog in foam or adhere to plastic or metal. Sorting or screening alone is not enough to counter these adhesion forces. In addition, these impurities are often extremely problematic for a range of disposal procedures.

Unsorted output material: shredder light fraction (SLF) after processing in the Rotorshredder

SLF output material (0-2 mm)
SLF output material (0-2 mm)
SLF output material (2-15 mm)
SLF output material (2-15 mm)
SLF output material (15-60 mm)
SLF output material (15-60 mm)
SLF output material (over 60 mm)
SLF output material (over 60 mm)

Video "Fine-grain treatment of shredder residue fractions"

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Brochure "Rotorshredder (RS)" (PDF / 1.6 MB)
Brochure "Rotorshredder (RS)"

Product brochure for the Rotoshredder (RS)

Size: 1.6 MB
Brochure “Rotary impact mill for recycling (RPMV & RPMX)” (PDF / 2.6 MB)
Brochure “Rotary impact mill for recycling (RPMV & RPMX)”

Product brochure for rotary impact mill (RPMV & RPMX) for recycling applications

Size: 2.6 MB

Advantages of BHS recycling technology

  • Excellent selectivity
  • High throughput rates
  • Low wear-related costs and energy costs
  • Well-proven technology
  • Trained service team
  • Fully automatic operation possible
  • Numerous references

BHS recycling technical center

Link to tests at BHS technical center

Technical article


recycling today Global Edition
November/December 2016
November 2016
PDF (6.3 MB)

Recyclers and equipment makers can work together to maximise the efficient recovery of metals from shredding plant fines fractions.

Finnish scrap processing firm Kajaanin Romu Oy has recently begun operating an automated sorting plant downstream of its shredder designed to thoroughly capture the metallic portion of automotive shredder residue (ASR). ...

Size: 6.3 MB

Saving Gold from Landfills - Recovery of metals from fine shredder fractions

bulk solids handling
No. 3 - 2014
September 2014
PDF (309 KB)
Saving Gold from Landfills - Recovery of metals from fine shredder fractions

Fine fractions of shredded automobile scrap and electronic equipment still contain considerable amounts of precious metals which until now have invariably been deposited in landfills. A new one-of-a-kind process allows to reclaim and sell these metals profitably.

Size: 309 KB
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