Hammer mills

The champions for hard-brittle materials.

Hammer mills are particularly suitable for metal scrap, electrical and electronic scrap or swarf made of steel, aluminium, but also other materials. And due to the easy adjustability during operation, also the baling of non-ferrous metals is no problem. The resultant size is variable and can be changed during operation. This product feature in particular is the best example of its high practicability in use.

The distinguishing features of the HA600 and HA800 hammer mills are

► Easy maintenance

       | Due to two quick-opening housing accesses.
       | Through easily replaceable grinding tools on the beater rotor.

Savings on operating costs

       | Due to long service life of the reversible grinding tools.
       | Due to highly wear-resistant mill rotor.

Controllable throughput of the particle size

       | Through individual adjustment of the grinding gap opening
         and easy change of grinding tools.
       | Through adjustable rotor speeds.

Processing of moist materials possible

       | No ingress of mill material or dust into the bearings
         due to external shaft bearing and special housing sealing.

Low noise and dust generation

       | Due to optional noise-insulating housing.
       | Special shaft and housing sealing and
         corresponding extraction point.

Efficient and safe operation

       | PLC control with overload protection to protect the
         machine from damage in case of overload or from solid parts.

Experience our shredders at first hand

Testing material under real conditions, making fine adjustments,
showing alternatives - that is the world at the Erdwich Test Centre.
For you as our customer, this means a secure basis
for your investment decision.

Advantages of the hammer mill

Using conventional technology, many materials are very difficult to break down or subject the equipment to heavy wear. The use of a variety of tools allows us to process a very wide spectrum of a wide range of materials. A range of various sieve containers and grinding bars is used to determine the size of the output fractions as well as forming the composite materials into bales. Different rotor speeds can be adopted to fit the material being processed. The well-engineered welded construction and the divisible machine housing enable quick and easy access to the tools. Due to the additionally integrated hydraulic system, the housing can be opened with minimal effort. The installation of different baffle plates allows us to define precisely the grain size of the materials being processed. Thanks to the automatic overload protection device, we achieve a high level of safety in respect of foreign matter contained in the material, so that the baffle plate can move aside automatically in the case of excessive load.

Wide range of application and highest variability

The flexible design of the shock and impact principle, adapted to the different materials being processed, can be constructed both for the breaking-up of materials and as baling machines, thereby offering a wide-ranging scope of applications.

  • Refrigerator recycling as well as electrical and electronic scrap processing as a pre- or post-stage after standard shredding 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 baling
  • Processing of large-volume metal swarf
  • Preparation of tyre wires for subsequent separation of rubber and iron
  • Slag processing
  • and much more

Top technology for selective processing of hard-brittle materials

► Integrated explosion protection

       | Highest safety standards.
 

Openings for grinding plate maintenance

       | Direct access for fast maintenance.
 

Automatic positioning of the grinding track

       | Protection against overload through stable spring assemblies.
       | Emergency ejection system for massive parts and extraneous materials.

Hydraulic housing opening

       | For easy accessibility during maintenance and inspection work.

Housing designed to be dust- and gas-tight

       | Special shaft and housing sealing.
       | Allows inerting with nitrogen or other gases.

Controllable throughput of the particle size

       | Individual adjustment of grinding gap opening and
         easy change of grinding tools.
       | Adjustable rotor speed

External shaft bearing

       | For protecting the bearings from contamination.

Hydraulically extendable sieve basket

       | for easy accessibility.

HA600 - Technical Data

Number of rotors                1
Drive power 11 kW to 45 kW
Rotor diameter 150 mm
Weight 1.500 kg to 1.650 kg
Sieve grate opening 4 mm to 65 mm

HA800 - Technical Data

Number of rotors                1
Drive power 45 kW to 132 kW
Rotor diameter 610 mm
Weight 9.000 kg to 13.000 kg
Sieve grate opening 8 mm to 100 mm

Experience our shredders at first hand

Testing material under real conditions, making fine adjustments,
showing alternatives - that is the world at the Erdwich Test Centre.
For you as our customer, this means a secure basis
for your investment decision.