559D Knuckleboom Loader

Overview
Gross Power
173 hp
Knuckleboom Length
32 ft
Operating Weight
33,800 lb
  • Exterior View

Engine

Gross Power
173 hp
Engine Model
Cat C4.4 ACERT
Gross Power at 1,800 rpm
173 hp
Gross Power
173 HP
Engine Model
Cat C4.4 ACERT
Gross Power - 1,800 rpm
173 HP

Operating Specifications

Knuckleboom Length
32 ft
Swing Speed
11 rpm
Note
*Theoretical
Maximum Reach - Standard Boom
32 ft
Swing Bearing - Diameter - Ball Path
44 in
Swing Torque*
49,173 ft·lbf
Tail Swing
106 in
Knuckleboom Length
32 ft
Swing Speed
11 r/min
Note
*Theoretical

Weights

Operating Weight
33,800 lb
Operating Weight - Without Grapple
33,800 lb
Counterweight
N/A
Operating Weight
33,800 lb

Hydraulic System

Cylinders – Main
one
Cylinders – Stick
one
Hydraulic Pressure – Swing
3,625 psi
Hydraulic Pressure – System
3,625 psi
Cylinders - Stabilizers
four
Hydraulic Oil Flow at 1,800 rpm
230/174 L/min (60/46 gal/min)
Cylinders - Main
one
Cylinders - Stick
one
Hydraulic Pressure - Swing
3,625 psi
Hydraulic Pressure - System
3,625 psi

Service Refill Capacities

Hydraulic Tank
80 gal
Fuel Tank
100 gal
Engine Oil
2 gal
Cooling System
8 gal
Swing Drive
1 gal
DEF Tank
5 gal
Hydraulic Tank
80 gal (US)
Fuel Tank
100 gal (US)
Cooling System
8 gal (US)
Engine Oil
2 gal (US)
Swing Drive
1 gal (US)
DEF Tank
5 gal (US)

Dimensions

Height to Top of Cab
158 in
Stabilizer Pad Size
508 × 711 mm (20 × 28 in)
Stabilizer Reach Below Grade
17 in
Stabilizer Spread - Maximum Down Reach
167 in
Stabilizer Spread - Grade
187 in
Note
559D dimensions are on non-suspension trailer.
Height - Top of Cab
158 in
Note
559D dimensions are on non-suspension trailer.

Standards

OFPS
OFPS cab meets SAE J2267

Shipping Dimensions - Mounted Trailer

Width
101 in
Height
158 in

GLK Series Grapples - GLK55

Height - Open - Excluding Rotation
47 in
Height - Open - Including Rotation
68 in
Weight - Excluding Rotation
1,411 lb
Weight - Including Rotation
1,911 lb
Area (tip to tip)
4 ft²
Open
54 in
Close
5 in
Note
All specifications are approximate.

GLK Series Grapples - GLK48

Height - Open - Excluding Rotation
45 in
Height - Open - Including Rotation
66 in
Weight - Excluding Rotation
1,407 lb
Weight - Including Rotation
1,907 lb
Area (tip to tip)
3 ft²
Open
48 in
Close
5 in
Note
All specifications are approximate.

Performance

  • The Cat® C4.4 ACERT™ U.S. EPA Tier 4 Final engine provides equivalent power (129.3 kW/173 hp) and optimized performance compared to C Series while minimizing overall fluid consumption
  • Advanced controls manage pump and engine interface to optimize performance and fuel efficiency
  • Leading hydraulic multi-functioning capability enables operator to lift, swing, and rotate grapple simultaneously without impairing performance
  • The Cat® C4.4 ACERT™ U.S. EPA Tier 4 Final engine provides equivalent power (129.3 kW/173 hp) and optimized performance compared to C Series while minimizing overall fluid consumption
  • Advanced controls manage pump and engine interface to optimize performance and fuel efficiency
  • Leading hydraulic multi-functioning capability enables operator to lift, swing, and rotate grapple simultaneously without impairing performance

Efficiency

  • Auto idle minimizes fuel consumption when machine is on and not actively working
  • High capacity cooling system only pulls in cool external air to maximize efficiency
  • Electrically controlled variable speed fan is modulated to provide cooling only as required, reducing fluid consumption
  • Auto idle minimizes fuel consumption when machine is on and not actively working
  • High capacity cooling system only pulls in cool external air to maximize efficiency
  • Electrically controlled variable speed fan is modulated to provide cooling only as required, reducing fluid consumption

Comfort

  • Smooth hydraulic controls and superior balance provide market leading comfort and controllability
  • High capacity HVAC system provides dependable cooling and heating for maximum comfort
  • Improved stabilizer controls to equalize stabilizer actuation resulting in optimized uniformity of footing in varying ground conditions
  • Smooth hydraulic controls and superior balance provide market leading comfort and controllability
  • High capacity HVAC system provides dependable cooling and heating for maximum comfort
  • Improved stabilizer controls to equalize stabilizer actuation resulting in optimized uniformity of footing in varying ground conditions

Safety

  • Stabilizer movement alarm alerts bystanders of stabilizer movement
  • Pilot enable alarm alerts bystanders when pilot function is engaged
  • Ground level access of engine, fuel, pilot, and case drain filters as well as electrical service box
  • Stabilizer movement alarm alerts bystanders of stabilizer movement
  • Pilot enable alarm alerts bystanders when pilot function is engaged
  • Ground level access of engine, fuel, pilot, and case drain filters as well as electrical service box

Durability

  • Reinforced fabricated booms with optimized cross sections designed to withstand heavy side-to-side delimbing applications and maximize lift capability
  • Field proven cooling system keeps engine and robust hydraulic system cool, extending component life
  • Larger diameter pins feature heavy-duty plating for improved durability and excluder seals to retain grease and keep free of SP contaminant
  • Reinforced fabricated booms with optimized cross sections designed to withstand heavy side-to-side delimbing applications and maximize lift capability
  • Field proven cooling system keeps engine and robust hydraulic system cool, extending component life
  • Larger diameter pins feature heavy-duty plating for improved durability and excluder seals to retain grease and keep free of SP contaminant

Serviceability

  • Single cylinder main boom has fewer parts to service than traditional dual cylinder lift system
  • Standard electric fill pump for hydraulic oil is at ground level for safe, easy service
  • Hinged doors provide industry-leading access to core components, daily check points, and service locations
  • Single cylinder main boom has fewer parts to service than traditional dual cylinder lift system
  • Standard electric fill pump for hydraulic oil is at ground level for safe, easy service
  • Hinged doors provide industry-leading access to core components, daily check points, and service locations

Cat Work Tools

  • Optimized Cat XT™-6 ToughGuard™ hose routings on GLK Series grapple designed to minimize loosening of fittings and improve hose life
  • Larger GLK Series cylinder pins and bushings reduce bearing stress by 25 percent
  • Available now in both a TW “Tapered Wide” and SN “Straight Narrow,” the GLK Series grapple is suitable for additional applications
  • Standard hold valves on GLK Series log grapples improve log retention
  • GLK Series grapples feature optional three port swivel which allows mounting of grapple saw
  • DLK426 delimber knives now have larger diameter pins that reduce bearing stress by 12 percent
  • Optimized Cat XT™-6 ToughGuard™ hose routings on GLK Series grapple designed to minimize loosening of fittings and improve hose life
  • Larger GLK Series cylinder pins and bushings reduce bearing stress by 25 percent
  • Available now in both a TW “Tapered Wide” and SN “Straight Narrow,” the GLK Series grapple is suitable for additional applications
  • Standard hold valves on GLK Series log grapples improve log retention
  • GLK Series grapples feature optional three port swivel which allows mounting of grapple saw
  • DLK426 delimber knives now have larger diameter pins that reduce bearing stress by 12 percent
×