SPECS SUMMARY

Gross Power303 mm H2O (226 kg/mm)
Maximum Reach - With Attachment26.5 ft (8.1 m)
Operating Weight - Without Attachment60629 lb (27501 null)
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.


Specifications

-Gross Power303 mm H2O (226 kg/mm)
-Maximum Reach - With Attachment26.5 ft (8.1 m)
-Operating Weight - Without Attachment60629 lb (27501 null)
-Pitch8.5 in (215.9 mm)
-Track Feller Buncher - Lift Over Front of Tracks: Maximum Reach - With Head26.5 ft (8.1 m)
-Track Feller Buncher - Lift Over Front of Tracks: Bare Pin Lift at Maximum Reach - Without Head6100 kg @ 6.2 m (13,500 lb @ 20 ft 6 in)
-Rated Power - 2,100 rpm282 mm H2O (210.3 kg/mm)
-Size330 EX (D7)
-CabCab meets FOPS/OPS/ROPS/WCB/OR-OSHA requirements
-Ground Clearance35 in (889 mm)
-521B70500 lb (31978 null)
-Track Length191.1 in (4855 mm)
-521B102 in (2591 mm)
-Track Feller Buncher - 521B60629 lb (27501 null)
-Gross Power - 1,800 rpm303 mm H2O (226 kg/mm)
-Engine ModelCat® C9 ACERT™
-Pumps (4)Dedicated variable displacement pump for saw motor - 55 cc
-Pumps (3)Dedicated variable displacement pump for boom and implement functions - 200 cc
-Pumps (2)Dedicated variable displacement pump for travel circuit - 200 cc
-Pumps (1)Electric hydraulic oil fill pump
-Cooling System10.8 gal (US) (41 l)
-Engine Oil10.3 gal (US) (39 l)
-Displacement537 in³ (8.8 l)
-Swing Drive2.6 gal (US) (10 l)
-Hydraulic System118 gal (US) (448 l)
-Fuel Capacity226 gal (US) (856 l)
-Gross Power303 mm H2O (226 kg/mm)

Benefits and Features

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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