579C Knuckleboom Loader

Product Description

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. Like the smaller model, the Cat 579C, now has a right-side operator’s cab with a walk-up platform and enlarged doorway for safe access to the cab.

Specifications
Us
Metric
Engine
Gross Power
174.0 hp
129.5 kW
Engine Model
Cat® C6.6 ACERT™ Tier 4 Interim
Gross Power @ 1,800 rpm
174.0 hp
129.5 kW
Operating Specifications
Knuckleboom Length
32.0 ft
9.8 m
Swing Speed
9.5 RPM
9.5 RPM
Maximum Reach (standard boom)
32.0 ft
9.8 m
Standard Knuckleboom Reach to Pin
32.0 ft
9.8 m
Swing Bearing Diameter (ball path)
43.5 in
1105.0 mm
Swing Torque
73800.0 lb ft
100360.0 N·m
Tailswing
108.2 in
2750.0 mm
Weights
Operating Weight
36480.0 lb
16582.0 kg
Counterweight
1440.0 lb
653.0 kg
Operating Weight (less grapple)
36480.0 lb
16582.0 kg
Operating Weight without grapple
36480.0 lb
16582.0 kg
Hydraulic System
Cylinders - Main
two
Cylinders - Stick
one
Hydraulic Pressure - Swing
3500.0 psi
24131.0 kPa
Hydraulic Pressure - System
3500.0 psi
24131.0 kPa
Cylinders - Stabilizers
four
Hydraulic Oil Flow @ 1,800 rpm
230/230 L (60/60 gal)
Service Refill Capacities
Hydraulic Tank
80.0 gal
302.0 L
Fuel Tank
100.0 gal
378.0 L
Cooling System
7.5 gal
29.0 L
Engine Oil
4.0 gal
15.0 L
Swing Drive
2.6 gal
10.0 L
Dimensions
Stabilizer Pad Size
508 × 711 mm (20 × 28 in)
Stabilizer Reach Below Grade
12.8 in
324.0 mm
Stabilizer Spread at Maximum Down Reach
166.8 in
4237.0 mm
Stabilizer Spread at Grade
183.8 in
4670.0 mm
Height to Top of Cab
161.9 in
4112.0 mm
Standards
OFPS
cab meets SAE J2267
Shipping Dimensions (mounted trailer)
Height
161.9 in
4112.0 mm
Width
101.3 in
2573.0 mm
Standard/Optional

Standard Equipment

ELECTRICAL
OPERATOR ENVIRONMENT
POWER TRAIN
HYDRAULICS
STRUCTURE AND SUBFRAME
BOOMS AND STICKS
ANTIFREEZE

Optional Equipment

DS SYSTEMS
OTHER EQUIPMENT

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