559C Knuckleboom Loader

Request a Quote

  • This field is for validation purposes and should be left unchanged.

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.
  • Standard Equipment
  • Optional Equipment
  • Specs

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

Specs

Overview

Long Name:
559C Knuckleboom Loader
Name:
559C
Brand:
Caterpillar
Status:
Noncurrent

Engine

Gross Power:
174 HP / 129.5 kW
Engine Model:
Cat® C6.6 ACERT™ Tier 4 Interim
Gross Power - 1,800 rpm:
174 HP / 129.5 kW

Weights

Operating Weight:
34100 lb / 15500 kg
Operating Weight - Less Grapple:
34100 lb / 15500 kg
Operating Weight - Without Grapple:
34100 lb / 15500 kg

Operating Specifications

Knuckleboom Length:
32 ft / 9.8 m
Swing Speed:
11 r/min / 11 r/min
Maximum Reach - Standard Boom:
32 ft / 9.8 m
Standard Knuckleboom Reach to Pin:
32 ft / 9.8 m
Swing Bearing - Diameter - Ball Path:
43.5 in / 1105 mm
Swing Torque:
49173 ft-lb / 66870 N·m
Tail Swing:
106 in / 2692 mm

Service Refill Capacities

Hydraulic Tank:
80 gal (US) / 302 l
Fuel Tank:
100 gal (US) / 378 l
Cooling System:
7.5 gal (US) / 29 l
Engine Oil:
4 gal (US) / 15 l
Swing Drive:
1 gal (US) / 4 l

Hydraulic System

Cylinders - Main:
two
Cylinders - Stick:
one
Hydraulic Pressure - Swing:
3500 psi / 24131 kPa
Hydraulic Pressure - System:
3500 psi / 24131 kPa
Cylinders - Stabilizers:
four
Hydraulic Oil Flow at 1,800 rpm:
230/174 L (60/46 gal)

Dimensions

Stabilizer Pad Size:
508 × 711 mm (20 × 28 in)
Stabilizer Reach Below Grade:
17 in / 433 mm
Stabilizer Spread - Maximum Down Reach:
166.8 in / 4237 mm
Stabilizer Spread - Grade:
187.3 in / 4758 mm
Height - Top of Cab:
157.6 in / 4002 mm

Standards

OFPS:
cab meets SAE J2267

Shipping Dimensions - Mounted Trailer

Height:
157.6 in / 4002 mm
Width:
101.3 in / 2573 mm