WILLIBALD Shredder Flex-Star 3000


The new Flex-Star 3000 star screen was designed to remove biomass, compost, pre-crushed waste wood, bark mulch and wood chips precisely in three fractions and separately in a single operation.

Where it becomes difficult for conventional screening technology, the Flex-Star 3000 demonstrates its true strength. Moist and sticky bulk materials, which tend to quickly bond the sieve trays, are sieved efficiently and cost-effectively. A discharge height of the material discharge belts of approx. 3.80 m enables a large storage capacity under the screen and thus an optimised use of wheel loaders.

The Flex-Star 3000 is mounted on an 80 km/h chassis with standard compressed air system and ABS and is powered by a powerful 4-cylinder Perkins diesel engine with an output of 75 KW (102 HP). This develops its maximum torque at 1,600 rpm and corresponds to the current exhaust emission level. The low consumption values and a large diesel tank with 150 l guarantee a long working life in one piece.  The compact size of only 10.30 m offers the necessary mobility to work optimally even in difficult space conditions. The generously dimensioned feed hopper guarantees uniform feeding and thus a high throughput of up to 160 cbm per hour with exact material separation.   The heart of the screening plant are the screen decks with flexible shaft finger rails developed by J. Willibald GmbH. Due to its modular design, the sieve can be used as a 2 or 3 fraction sieve. The changeover is carried out quickly and easily hydraulically via the remote control.


Price on request Your Request
  • Technical Data
  • Equipment
  • Fields of application
 Transport measurements    
   l/w/h  10300/2550/4000
Manufacturer   Perkins
Type   854E-E34TA
Power kW/HP 75/100
Number of cylinders   R4
Displacement cm³ 3400
Nominal speeds rpm 2400
Speed at max. torque rpm 1600
max. Torgue Nm 450
Emission standard   Stufe III B
fuel supply l 150
2 axle central chassis for 50 m/h
 Charging hopper
Height mm 2800
Width mm 4300
Capacity ca. 8
Speed infinitely variable
 Screening stage coarse (completely replaceable)
Speed infinitely variable
Screen surface 5
Flexible shafts pcs. 12
Finger ribs (different sizes available) pcs. 8
Weight kg 1600
 Screening stage fine (completely replaceable)
Speed infinitely variable    
Screen surface 7,5
Flexible shafts pcs. 18
Finger ribs (different sizes available) pcs. 8
Gewicht kg 2700
 Oversize particle belt    
Abwurfhöhe mm 4500
Weight mm 1500
 Medium and fine grain belt    
Overloading height mm 3800
Width mm 850
  m³/h  up to 200


  • Flexible use (applicable in different materials)

  • Good function even with moist material

  • Short design can also be used in confined spaces

  • Quick& easy to convert from transport to working position

  • Diesel-hydraulic drive (currently 102 HP Perkins engine)

  • Chassis with 80 km/h road approval - ABS standard

  • Large material feed hopper - material feed is effected by means of rolling floor with high drivers - speed continuously adjustable by means of potentiometer

  • Stepless adjustment of the individual screen decks (speed of the star shafts) - grain size and selectivity can be determined by this

  • Both screen decks easily replaceable (approx. 2h per screen deck)

  • Metal finger bars can be replaced individually

  • Easy to maintain by swivelling the components away

  • Easy operation> automatic start - stop

  • All components can be operated via radio (optional)

  • Machine can be moved via creep speed

  • Higher discharge height possible due to longer belts

  • Modular design (optionally applicable as 3-fractions or on request as 2-fractions screening plant)


 Screen materials
  • Composting
  • Bio mass
  • Bark & Peat processing
  • Production of wood chips
    from residual wood & old wood materials