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521B Track Felller Buncher

  • OVERVIEW
  • SPECIFICATIONS
  • STANDARD / OPTIONAL
PRODUCT DESCRIPTION

The new B Series track feller bunchers feature smoother hydraulic performance, increased engine HP, a more comfortable operator station and better right side operator visibility. The Cat 521B Series are zero tail swing machines designed for medium to high production clear cut and or select cut on rough terrain. These machines perform in a variety of small through larger tree size applications. A robust undercarriage utilizes proven components, customized for demanding forestry conditions. The unique boom design provides industry leading lift capacity throughout full reach range, a benefit in large timber.

Engine
  • Gross Power - 303 HP
  • Operating Specifications
  • Maximum Reach - With Attachment - 26.5 ft
  • Hydraulic System
  • Pumps (1) - Electric hydraulic oil fill pump
  • Pumps (2) - Dedicated variable displacement pump for travel circuit - 200 cc
  • Pumps (3) - Dedicated variable displacement pump for boom and implement functions - 200 cc
  • Pumps (4) - Dedicated variable displacement pump for saw motor - 55 cc
  • Service Refill Capacities
  • Cooling System - 10.8 gal (US)
  • Engine Oil - 10.3 gal (US)
  • Fuel Capacity - 226 gal (US)
  • Hydraulic System - 118 gal (US)
  • Swing Drive - 2.6 gal (US)
  • Weights
  • Operating Weight - Without Attachment - 60629 lb
  • Power Train
  • Displacement - 537 in³
  • Engine Model - Cat® C9 ACERT™
  • Gross Power - 303 HP
  • Gross Power - 1,800 rpm - 303 HP
  • Rated Power - 2,100 rpm - 282 HP
  • Boom System
  • Track Feller Buncher - Lift Over Front of Tracks: Bare Pin Lift at Maximum Reach - Without Head - 6100 kg @ 6.2 m (13,500 lb @ 20 ft 6 in)
  • Track Feller Buncher - Lift Over Front of Tracks: Maximum Reach - With Head - 26.5 ft
  • Undercarriage
  • Pitch - 8.5 in
  • Size - 330 EX (D7)
  • Standards
  • Cab - Cab meets FOPS/OPS/ROPS/WCB/OR-OSHA requirements
  • Operating Weights - Without Heads, Standard Counterweight
  • Track Feller Buncher - 521B - 60629 lb
  • Track Gauge
  • 521B - 102 in
  • Track Length
  • Track Length - 191.1 in
  • Ground Clearance
  • Ground Clearance - 35 in
  • Tractive Effort
  • 521B - 70500 lb
  • Standard Equipment
  • ELECTRICAL
  • GUARDS
  • OPERATOR ENVIRONMENT
  • POWER TRAIN
  • UNDERCARRIAGE
  • HYDRAULICS
  • ANTIFREEZE
  • OTHER STANDARD EQUIPMENT
  • Optional Equipment
  • LINKAGES
  • HYDRAULICS
  • FELLING HEADS
  • TRACK SYSTEMS
  • OTHER EQUIPMENT
  • FIELD INSTALLED ATTACHMENTS
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