ERS / Erdwich Hammer Mills

ERS / Erdwich Hammer Mills
ERS / Erdwich Hammer Mills

Our hammer mills are the answer to the challenge of selectively shredding hard and brittle materials. Hammer mills also take the pelletization of rubbery materials – as preparation for downstream separation systems – in their stride.

A tough customer? Just so.

ERS / Erdwich hammer mills are especially suited to metal, electrical and electronic scrap or swarf from steel or aluminum – and many other materials besides. Simple  adjustability during operation also makes short work of the pelletization of non-ferrous metals. The final fragment size is variable and can be changed during operation. That’s also a great example of the product’s flexibility in catering to a wide range of applications.

Technical features:

  • Extremely hard-wearing, separate grinding elements and inner lining – replaceable
  • Fully-enclosed construction, dust-tight construction guaranteed by special shaft and housing seals, plus corresponding extraction points
  • Mechanical overload protection with emergency reject mechanism in case of solid materials and contaminants
  • Housing wall pivots hydraulically to enable easy access for maintenance and inspection work
  • Inert atmospheres possible using nitrogen or other gases
  • Application-specific drive and grinding element models
  • PLC control unit with automated power down and optional frequency-driven motor speed controller

The flexible design of the rotor-stator principle, adapted to the different materials being processed, can be installed both for the breaking-up of materials and as ball-forming machine, offering therefore a wideranging scope of applications:

  • Processing of electronic waste as a preliminary stage or a subsequent stage after the customary ripper technology
  • Processing of aluminium profiles and composite materials
  • Preparation of shredder light fraction for subsequent separation
  • Recycling of printed circuit boards, IC components and small electronic equipment
  • Grinding of non-ferrous composite materials with subsequent ball forming
  • Processing of large-volume metal swarf
  • Preparation of tyre wires for subsequent separation of rubber and iron
  • Slag processing
  • and much more...


Erdwich USA Hammer Mills_ENG_web.pdf (443.7 KiB)