Your Rental Location
  • Request A Quote

521 Track Feller Buncher

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. Four models are available with just the right horsepower, track size and hydraulic configurations to fit your application needs.

Videos not available for this product.

360 View not available for this product.

Add to Cart
SPECIFICATION SUMMARY
  • Gross Power 284.0 hp
  • Engine Model Cat® C9 ACERT™
  • Rated Power 263.0 hp
  • Displacement 537.0 in3

PRICE (USD)
Call 800-637-5000 for rate information

Engine

  • Gross Power
    284.0 hp
  • Engine Model
    Cat® C9 ACERT™
  • Rated Power
    263.0 hp
  • Displacement
    537.0 in3
  • Gross Power
    284 HP
  • Engine Model
    Cat® C9 ACERT™
  • Rated Power
    263 HP
  • Displacement
    537 in³

Hydraulic System

  • Pump Size - Travel Circuit
    12.2 in3
  • Pump Size - Boom, Implements
    11.59 in3
  • Pump Size - Saw Motor
    3.36 in3
  • Pump Size - Travel Circuit
    12.2 in³
  • Pump Size - Boom, Implements
    11.59 in³
  • Pump Size - Saw Motor
    3.36 in³

Track

  • Track Gauge
    102.0 in
  • Track Length
    189.0 in
  • Ground Clearance
    33.0 in
  • Undercarriage Size
    D6H HD
  • Undercarriage Pitch
    8 in
  • Tractive Effort
    70500 lb
  • Track Gauge
    102 in
  • Track Length
    189 in
  • Ground Clearance
    33 in
  • Undercarriage Size
    126 in

Service Refill Capacities

  • Fuel Tank
    140.0 gal
  • Cooling System
    16.1 gal
  • Engine Oil
    10.3 gal
  • Hydraulic Tank
    69.2 gal
  • Hydraulic System
    79.3 gal
  • Swing Drive
    2.6 gal
  • Pony Fuel Tank - Optional
    90 gal (US)
  • Fuel Tank
    140 gal (US)
  • Cooling System
    16.1 gal (US)
  • Engine Oil
    10.3 gal (US)
  • Hydraulic Tank
    69.2 gal (US)
  • Hydraulic System
    79.3 gal (US)
  • Swing Drive
    2.6 gal (US)

Dimensions

  • Height
    140.0 in
  • Shipping Length - With Attachment
    431 in
  • Shipping Length - Without Attachment
    340 in
  • Width - Minimum
    126 in
  • Height
    140 in

Operating Specifications

  • Maximum Reach - With Attachment
    26.6 ft
  • Maximum Reach - With Attachment - Track Harvester Configuration
    32 ft
  • Bare Pin Lift at Maximum Reach - Without Attachment
    7100 kg (15600 lb) @ 6.1 m (20 ft)
  • Bare Pin Lift at Maximum Reach - Without Attachment - Track Harvester Configuration
    4100 kg (9100 lb) @ 9 m (29.5 ft)

Weights

  • Operating Weight - Without Attachment
    59710 lb
  • Operating Weight - Without Attachment - Track Harvester Configuration
    57440 lb

Dimensions - Track Harvester Configuration

  • Shipping Length - Without Attachment
    453 in
  • Height - Without Attachment
    140 in
  • Width - Minimum - Without Attachment
    126 in

Powertrain

Hydraulic Packages

Operator Comfort

Leveling System

Undercarriage

Boom and Stick

Versatility

Owning and Operating Costs

Serviceability

Customer Focus

Standard Equipment:

  • Electrical
    • 24-volt electrical system
    • 2-12 volt maintenance free batteries with 950 CCA
    • 95 Amp alternator
    • IQAN programmable controls
    • MDL large display screen
  • Guards
    • Hydraulically actuated hinged engine enclosure with warning alarm
    • Engine fan guard
    • Bottom guards
    • Isolation mounted cab and engine
    • Heavy duty radiator guard door
  • Operator Environment
    • OPS/FOPS/ROPS cab
    • Dual joystick control
    • Reverse slope windshield
    • Air ride seat
    • Skylight - alternate escape hatch
    • Top escape hatch
    • 3 inch retractable seat belt
    • Heater/air conditioner w/climate control
    • DIN mount radio ready
    • Operator sound suppression to standards
    • Travel alarm
    • Cup holders (2)
    • 2-l2volt and 1-24 volt power outlets
    • Front Window, 1.25 in Thick Margard
  • Powertrain
    • C9 ACERT engine meets Tier 2 emissions requirements
    • Infinitely variable travel speed
    • Under hood centrifugal precleaner and primary air filter
    • 43C degree ambient temperature cooling package
    • Electric fuel priming pump
    • Fuel water separator
  • Undercariage
    • Track roller guards with access holes
    • Hydraulic track adjusters
    • Double flange track rollers
    • GFT80 Lohmann final drives
    • Caterpillar D6H HD grease lubricated and swaged undercarriage components
    • Welded, non-leveling carbody
  • Other Standard Equipment
    • Vandalism protection
    • Spare hose storage area
    • Grease gun bracket and storage area
    • 140 US gallon fuel tank
  • Hydraulics
    • Dedicated pilot pump
    • Two dedicated variable displacement track pump and implement pump
    • 30 gpm dedicated saw pump
    • Cat® 325C swing drive and swing motor
    • Electric hydraulic oil fill pump
    • 70 US gal hydraulic tank
  • Antifreeze
    • 50% concentration extended life coolant

Optional Equipment:

  • Track Systems
    • 24" SG pads, clipped corners, with mud/snow reliefs
    • 24" DG pads, clipped corners, with mud/snow reliefs
    • 28" SG pads, clipped corners, with mud/snow reliefs
    • 28" DG pads, clipped corners, with mud/snow reliefs
    • 36" Tri-track, clipped corners, with mud/snow reliefs
    • Star Carrier Rollers
  • Other Equipment
    • Starting Aid, Cold Weather
    • Starting Aid, Arctic
    • Pony Tank, additional 90 US gal (341 L) fuel capacity
    • Flexxaire™ Fan
  • Field Installed Attachments
    • CD Player with AM/FM Stereo - remote capable
    • Skylight, peaked, removable
    • Loose Linkage Arrangements