621ST Mobile Shredder Trommel

The 621ST Shredder Trommel is a self-contained, diesel-powered, track-mounted portable screening plant designed to separate topsoil, compost and green waste type products.It features wireless remote controls and a direct open-feed hopper with a large 6′ x 21′ (1.8m x 6.4m) trommel drum, creating 340 square feet (31.6m2) of screening area.

The 621ST comes standard with a hammermill shredder that can be raised out of the way when not needed. It also features an adjustable, removable and remote-controlled tipping grizzly. It is truly a landscaper’s ultimate high-capacity processing plant.

Features Overview:

  • Trommel Deck Screen
    • 6′-0” x 21′-0” (1.8m x 6.4m) heavy-duty trommel screen
    • 340 square feet (31.6m2) of actual screening surface area
    • Four wheel driven trommel drum
    • Unique rapid change screen cloth system
    • Self-cleaning drum brushes, adjustable from the ground
  • Engine / Controls
    • CAT® C4.4 110 HP (82kw) Tier IV Final diesel engine
    • 80 gallon (302L) fuel tank = approx 16 hours of run time
    • Wireless remote control operation
  • Conveyors
    • 42″ (1,067mm) wide side conveyor
    • Side conveyor discharge height 13′-7′ (4.2m)
    • Oversize material conveyor discharge height 11′-5″ (3.5m)
    • Guide rollers for conveyor belt centering
    • Hydraulic fold-over side conveyor for easy portability
  • Hopper Feeder
    • 6.5 Cu. Yard hopper (5 Cu. Meter)
    • 42’’ (1,067mm) belt
    • Remote tipping grizzly included — removable, adjustable angle, remote-controlled
    • Temporary feeder shut-off on trommel overload
  • Unique / Patented Features
    • Hammermill shredder (U.S. Patent #7,121,487)
    • Centralized lubrication — 5 grease points for the entire machine!

Highlights (Click To Enlarge)

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