US
Metric

Overview

Engine

Gross Power
173.00 hp
129.30 kW
Engine Model
Cat C4.4 ACERT
Gross Power at 1,800 rpm
173.00 hp
129.30 kW

Operating Specifications

Knuckleboom Length
32.00 ft
9.80 m
Swing Speed
11.00 rpm
11.00 rpm
Maximum Reach - Standard Boom
32.00 ft
9.80 m
Note
*Theoretical
Swing Bearing - Diameter - Ball Path
43.50 in
1105.00 mm
Swing Torque*
49173.00 ft·lbf
66870.00 N·m
Tail Swing
106.00 in
2692.00 mm

Weights

Operating Weight
33800.00 lb
15331.00 kg
Operating Weight - Without Grapple
33800.00 lb
15331.00 kg
Counterweight
N/A

Hydraulic System

Cylinders – Main
one
Cylinders – Stick
one
Hydraulic Pressure – Swing
3625.00 psi
24994.00 kPa
Hydraulic Pressure – System
3625.00 psi
24994.00 kPa
Cylinders - Stabilizers
four
Hydraulic Oil Flow at 1,800 rpm
230/174 L/min (60/46 gal/min)

Service Refill Capacities

Fuel Tank
100.00 gal
378.00 L
Hydraulic Tank
80.00 gal
302.00 L
Engine Oil
2.10 gal
8.00 L
Cooling System
7.50 gal
29.00 L
Swing Drive
1.00 gal
4.00 L

Dimensions

Stabilizer Pad Size
508 × 711 mm (20 × 28 in)
Stabilizer Reach Below Grade
17.00 in
433.00 mm
Stabilizer Spread - Maximum Down Reach
166.80 in
4237.00 mm
Stabilizer Spread - Grade
187.30 in
4758.00 mm
Height to Top of Cab
157.60 in
4003.00 mm

Standards

OFPS
OFPS cab meets SAE J2267

Shipping Dimensions - Mounted Trailer

Width
101.30 in
2573.00 mm
Height
157.60 in
4003.00 mm

Service Refill Capacities

DEF Tank
5.00 gal
19.00 L

Dimensions

Note
559D dimensions are on non-suspension trailer.

GLK Series Grapples - GLK55

Height - Open - Excluding Rotation
46.70 in
1186.00 mm
Height - Open - Including Rotation
68.00 in
1724.00 mm
Weight - Excluding Rotation
1411.00 lb
640.00 kg
Weight - Including Rotation
1911.00 lb
867.00 kg
Area (tip to tip)
3.80 ft²
1.15 m²
Open
54.00 in
1372.00 mm
Close
5.00 in
127.00 mm
Note
All specifications are approximate.

GLK Series Grapples - GLK48

Height - Open - Excluding Rotation
45.10 in
1146.00 mm
Height - Open - Including Rotation
66.00 in
1685.00 mm
Weight - Excluding Rotation
1407.00 lb
638.00 kg
Weight - Including Rotation
1907.00 lb
865.00 kg
Area (tip to tip)
3.00 ft²
0.91 m²
Open
48.00 in
1219.00 mm
Close
4.50 in
114.00 mm
Note
All specifications are approximate.

Engine

Gross Power
173.00 HP
129.30 kW
Engine Model
Cat C4.4 ACERT
Gross Power - 1,800 rpm
173.00 HP
129.30 kW

Weights

Operating Weight
33800.00 lb
15331.00 kg

Operating Specifications

Knuckleboom Length
32.00 ft
9.80 m
Swing Speed
11.00 r/min
11.00 r/min
Note
*Theoretical

Service Refill Capacities

Hydraulic Tank
80.00 gal (US)
302.00 l
Fuel Tank
100.00 gal (US)
378.00 l
Cooling System
7.50 gal (US)
29.00 l
Engine Oil
2.10 gal (US)
8.00 l
Swing Drive
1.00 gal (US)
4.00 l

Hydraulic System

Cylinders - Main
one
Cylinders - Stick
one
Hydraulic Pressure - Swing
3625.00 psi
24994.00 kPa
Hydraulic Pressure - System
3625.00 psi
24994.00 kPa

Dimensions

Height - Top of Cab
157.60 in
4003.00 mm
Note
559D dimensions are on non-suspension trailer.

Service Refill Capacities

DEF Tank
5.00 gal (US)
19.00 l
Features

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

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

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

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

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

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