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559C Knuckleboom Loader

Cat knuckleboom loaders are known for superior multifunction capability, excellent visibility and heavy-duty booms and structures. Now the Cat C Series knuckleboom loaders feature a new more fuel efficient power system, an upgraded hydraulic system for greater reliability and significantly more lift at full reach than previous models.

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SPECIFICATION SUMMARY
  • Gross Power 174.0 hp
  • Knuckleboom Length 32.0 ft
  • Operating Weight 34100.0 lb
  • Engine Model Cat® C6.6 ACERT™ Tier 4 Interim

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

Engine

  • Gross Power
    174.0 hp
  • Engine Model
    Cat® C6.6 ACERT™ Tier 4 Interim
  • Gross Power @ 1,800 rpm
    174.0 hp
  • Gross Power
    174 HP
  • Engine Model
    Cat® C6.6 ACERT™ Tier 4 Interim
  • Gross Power - 1,800 rpm
    174 HP

Operating Specifications

  • Knuckleboom Length
    32.0 ft
  • Swing Speed
    11.0 RPM
  • Swing Torque
    49173.0 lb ft
  • Maximum Reach - Standard Boom
    32 ft
  • Standard Knuckleboom Reach to Pin
    32 ft
  • Swing Bearing - Diameter - Ball Path
    43.5 in
  • Tail Swing
    106 in
  • Knuckleboom Length
    32 ft
  • Swing Speed
    11 r/min
  • Swing Torque
    49173 ft-lb

Weights

  • Operating Weight
    34100.0 lb
  • Operating Weight without grapple
    34100.0 lb
  • Operating Weight - Without Grapple
    34100 lb
  • Operating Weight
    34100 lb
  • Operating Weight - Less Grapple
    34100 lb

Hydraulic System

  • Cylinders - Main
    two
  • Cylinders - Stick
    one
  • Hydraulic Pressure - Swing
    3500.0 psi
  • Hydraulic Pressure - System
    3500.0 psi
  • Cylinders - Stabilizers
    four
  • Hydraulic Oil Flow at 1,800 rpm
    230/174 L (60/46 gal)
  • Cylinders - Main
    two
  • Cylinders - Stick
    one
  • Hydraulic Pressure - Swing
    3500 psi
  • Hydraulic Pressure - System
    3500 psi

Service Refill Capacities

  • Hydraulic Tank
    80.0 gal
  • Fuel Tank
    100.0 gal
  • Cooling System
    7.5 gal
  • Engine Oil
    4.0 gal
  • Swing Drive
    1.0 gal
  • Hydraulic Tank
    80 gal (US)
  • Fuel Tank
    100 gal (US)
  • Cooling System
    7.5 gal (US)
  • Engine Oil
    4 gal (US)
  • Swing Drive
    1 gal (US)

Dimensions

  • Height to Top of Cab
    157.6 in
  • Stabilizer Pad Size
    508 × 711 mm (20 × 28 in)
  • Stabilizer Reach Below Grade
    17 in
  • Stabilizer Spread - Maximum Down Reach
    166.8 in
  • Stabilizer Spread - Grade
    187.3 in
  • Height - Top of Cab
    157.6 in

Standards

  • OFPS
    cab meets SAE J2267
  • OFPS
    101.3 in

Shipping Dimensions - Mounted Trailer

  • Height
    157.6 in
  • Width
    101.3 in

Hydraulics

Power Train

Operator Station

Electronics

Structure and Subframe

Boom and Stick

Grapples

Delimber/Slasher Package

Owning and Operating Costs

Serviceability

Customer Support

Sustainability

Standard Equipment:

  • Electrical
    • 24V system
    • Master disconnect
    • Circuit breaker protection
    • 95 Amp alternator
    • Two (2) 12V maintenance free batteries
    • Standard lighting package: - Two (2) cab mounted halogen light fixtures
    • Electronic engine/machine monitoring system
    • Two (2) 12V power points
    • 20 circuit electric swivel
  • Operator Environment
    • Cab with swing out front window guard (meets SAE J2267)
    • Isolation mountings
    • Dual joystick control (pilot hydraulic actuation) with foot pedal swing
    • Electric stabilizer controls
    • Integrated trailer landing gear control
    • Pilot shut-off button
    • Push button throttle control
    • Reverse slope windshield
    • Skylight
    • Tinted safety glass
    • Sunshade - dual position for front window/skylight
    • High back suspension seat with lumbar support
    • High capacity AC/heater system with outside air intake
    • Defroster fan
    • Windshield wiper/washer
    • Dome light
    • Horn
    • Radio ready - includes speakers and AM/FM antennas
    • CB Radio ready - includes mounting bracket, power and ground wires, antenna cable and antenna mount bracket
    • Product Link ready
    • Cup holder
    • Fire extinguisher mounting bracket
    • Diagnostic port
    • Cell phone storage tray
  • Power Train
    • Cat C6.6 ACERT engine meets U.S. EPA Tier 4 Interim/EU Stage IIIB emission standards
    • Electric fuel priming pump
    • Air precleaner
    • 2-stage air cleaner
    • Enlarged cooling package with isolated cores
    • 378 L (100 U.S. gal) fuel tank
    • Fuel water separator
    • Variable speed fan
  • Hydraulics
    • Twin 140 cm3 (8.54 in3) variable displacement pumps
    • Excavator style “Negacon” system
    • Bar slasher/delimber hydraulic package
    • 302 L (80 U.S. gal) hydraulic tank
    • Electric hydraulic oil fill pump
  • Structure And Subframe
    • Fabricated heavy-duty, extended length center mount subframe
    • Flat top subframe deck with bolt-on skid resistant fenders
    • Bolt-on subframe ladder
  • Booms And Sticks
    • 9.8 m (32 ft) reach knuckleboom
    • 229 mm (9 in) grapple mounting knuckle
  • Antifreeze
    • 50% concentration extended life coolant

Optional Equipment:

  • Ds Systems
    • Non-suspension trailer with hydraulic landing gear
    • Suspension trailer with hydraulic landing gear
    • CTR 320 three-knife delimber
    • CTR 426 four-knife delimber
  • Other Equipment
    • Cat Product Link
    • AM/FM/CD/Satellite radio receiver
    • Long-range front lights on cab
    • Engine compartment lights
    • Additional subframe ladders
    • Auxiliary light package
    • Slasher port adapter fittings
    • Single “V” and double “VV” bolt on heels
    • Single “V” extended and double “VV” extended bolt on heels
    • 305 mm (12 in) grapple mounting knuckle
    • Grapples