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 patented 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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Product brochure-double-shaft shredder-VVZ-EN
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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
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

Can be used for following material

Wood
Biomass
Domestic and industrial waste
Alternative fuel
All