VVZ - Pre-shredder

Robust and powerful pre-shredding, even of difficult materials

With our VVZ series, you get robust and powerful pre-shredders that can easily pre-shred even difficult and contaminated material, such as household, bulky and commercial waste, production residues or waste wood, straw and root wood for further processing. Two solid steel rotors with their large flywheel masses achieve smooth machine operation and high penetrating power. Due to the interaction of the two rotors with the common counter knife and the screen webs, you benefit from a very well separable and homogeneous output.

VVZ - Double-shaft pre-shredder

The strongest among the double-shaft pre-shredders

The Vecoplan double-shaft shredder is a pre shredder for difficult material and material containing extraneous materials, e. g. municipaland commercial solid waste, residual productionmaterials or wood waste, straw and root wood. With different cutting units, counter-knife variants and the specially adapted screen rod  sizes, we can cater for the widest variety of input materials and customer requirements.

The highlights of the VVZ - Pre-shredder

Resilient power

The machine housing is a thick-walled, ribbed construction with optimal functional machine geometry for powerful and trouble-free operation with a maximum service life. This means maximum and continuous availability over many years at the highest level. With their large flywheel mass, the two solid steel rotors ensure quiet machine running yet have a high cut-through power. The interplay of the two rotors with the same counter-knife combined with the screen rods produces a high separation quality and homogeneous output. The two large hydraulic maintenance doors make it easy to change wearing parts and allow taking out tramp material even if the hopper is completely full.

 

Your advantages at a glance

  • Robust and durable design for extreme conditions 
  • Highest reliability and availability 
  • Cost minimisation through energy efficiency 
  • Best added value through consistently high, high-quality output
  • Intuitive machine operation via VSC.control 
  • Online support and optimisation via the Vecoplan Smart Center 

Features

The HiTorc drive is a frequency-controlled, powerful high-torque motor with a variably adjustable speed range that can also start up under load. The virtually maintenance-free and noiseless drive has an energy saving of up to 60% compared to conventional drives.

The maintenance doors of the machine are equipped with a hydraulic locking system. The heavy guided locking bolt withstands even the highest pressure without any problems.

The cutting unit is equipped with two U-rotors for maximum cutting performance and high throughput. Each knife can be used up to 4 times. This means you benefit from a long service life and a homogeneous output material.

The multi-part counter knife is available in hardened or armoured version. The multi-part screen rods/screen grids promise low wear thanks to the armouring of the rods. In addition, the stripping combs on the maintenance doors prevent material entanglement on the rotor.

The output particle size can be easily adjusted thanks to screen rods extensions.

Large maintenance doors allow good access for changing wear parts or for discharging tramp materials.

Successfully implemented projects with international clients
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Which model suits your needs?

Specification
VVZ 1900
VVZ 2100
VVZ 2500
VVZ 3100
Type of drive Direct drive HiTorc Direct drive HiTorc Direct drive HiTorc Direct drive HiTorc
Motor power 2 x 155 kW 2 x 155 kW 2 x 155 kW 2 x 155 kW
Speed range 20 - 100 1/min 20 - 100 1/min 20 - 100 1/min 20 - 100 1/min
Rotor length 1,900 mm 2,100 mm 2,500 mm 3,100 mm
Rotor diameter 640-765 mm 720 mm 720 mm 720 mm
Weight 18.5 to 22 to 26 to 31 to
Dimension (Length) 4,960 mm 5,160 mm 5,560 mm 6,160 mm
Dimension (Width) 2,450 mm 2,450 mm 2,450 mm 2,450 mm
Dimension (Height) 1,750 mm 1,750 mm 1,750 mm 1,750 mm

Products

Discover more advantages

Can be used for following material

Wood
Biomass
Domestic and industrial waste
Alternative fuel
All

Waste wood

The processing of waste wood transforms wood waste of various types into a valuable secondary raw material. Besides the recovery of materials, efficient energy recovery is becoming increasingly important as a renewable energy source.

Bark

Bark can be thermally recycled as fuel and further processed into bark mulch or bark litter.

Straw bales

Direct feeding of entire strawballs to shredders for downstream processes in energy and materials recovery offers several advantages. The work of unravelling the strawballs in advance is no longer necessary. Systems for the storage, conveyance and metred feeding round off the product portfolio for processing technology.

Domestic waste

Residual waste is optimally handled by shredding it in mechanical-biological waste treatment plants (MBT) and separating the various recyclable materials from each other. Another use of residual waste is thermal utilisation in a waste incineration plant. The heat released is used both to generate electricity and to provide heat.

Bulky waste

Bulky waste chiefly includes discarded furniture, mattresses, wallpaper remnants and old carpets. Nowadays, most bulky waste can be recycled for materials and energy.

Industrial waste

Commercial municipal waste (also abbreviated to commercial waste) is municipal waste from sources other than private households, in particular commercial and industrial waste as well as waste from private and public institutions. This waste is similar to waste from private households due to its nature or composition and must be disposed of in the same way.

However, commercial municipal waste also includes other production-specific waste from other sources, such as workshop waste, cleaning rags containing mineral oil, paint buckets or non-infectious waste, leather waste, metal waste, including shavings from metalworking and metal processing.

Domestic waste

Typical residual waste from households offers little potential for material recycling. However, in the cement industry, the high-calorific fractions from the waste can be used as an alternative fuel. RDF manufacturers filter out these fractions by shredding and separating them.

Bulky waste

Largely homogeneous RDFs with good combustion and low pollutant properties can be produced, even from bulky waste.

Industrial waste

The non-recyclable materials from waste generated in industry and commerce can be processed into RDFs and used in power plants or the cement industry.

Sorting residues

In sorting plants for light packaging (LVP), the packaging items pass through various packaging items pass through various stations, at each of which a specific fraction of the material is sorted out of the material flow. Pressed into bales, the individual material fractions are then sent for recycling. Waste designation Sorting residues: Sorting residues from facilities for sorting lightweight packaging, so-called DSD sorting residues. These can be processed into alternative fuels in substitute fuel processing plants.

Waste wood, used wood

Wood waste or even old pallets can be used as a renewable raw material for energy production. Effective processing is essential to produce a waste-based RDF.

Biomass

Residual materials are chiefly used as solid biogenic fuels – in other words, biomass that is hardly suitable for purposes other than incineration. For example, these materials include forest and industrial residual wood, waste wood, garden and park waste and straw.

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