558 Forest Machine

558 Forest Machine

The 558 features enhanced performance coupled with ultimate machine efficiency. Cat® components, purpose built upper and lower frames, and application specific linkage configurations increase machine up time and lower machine operating costs.

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Engine

Engine Model
Cat C7.1 ACERT
Net Flywheel Power
239hp
Gross Power
239hp
Gross Power at 2,200 rpm
239hp
Engine Speed: Operation
1750rpm
Number of Cylinders
6
Engine Speed - Operation
1750r/min
Engine Speed - Travel
1800r/min
Engine Model
Cat C7.1 ACERT
Net Flywheel Power
239HP
Gross Power
239HP
Displacement
428in³
Gross Power at 2,200 rpm
239HP
Number of Cylinders
6

Weights

Estimated Operating Weight without Attachment: General Forestry (Reach)
85239lb
Estimated Operating Weight without Attachment: General Forestry (Reach)
85239lb

Service Refill Capacities

Cooling System
7.9gal
Engine Crankcase
6.3gal
Hydraulic Tank
46.2gal
Final Drive – Each
2.9gal
DEF Tank
12.2gal
Swing Drive
2.9gal
Fuel Tank - CWT
261.4gal (US)
Hydraulic System - Total
81.9gal (US)
Cooling System
7.9gal (US)
Swing Drive
2.9gal (US)
Hydraulic Tank
46.2gal (US)
DEF Tank
12.2gal (US)
Engine Crankcase
6.3gal (US)
Final Drive - Each
2.9gal (US)

Operating Specifications

Maximum Drawbar Pull
72164lbf
Swing Torque (GF)
74494lbf-ft
Maximum Swing Speed (GF)
7.5rpm
Maximum Speed - Turtle
1.5mile/h
Maximum Speed - Rabbit
2.3mile/h
Maximum Drawbar Pull
72164lbf
Maximum Swing Speed (GF)
7.5r/min
Swing Torque (GF)
74494ft·lbf

Hydraulic System

Auxiliary Pump – Reach with Rotate: Pump Drive Gear Ratio
1.28:1
Auxiliary Pump – Reach with Rotate: Maximum Flow
37.2gal/min
Auxiliary Pump – Reach with Rotate: Maximum Pressure
1499psi
Main Pumps - Maximum Flow - Per Pump
63.4gal/min
Main Pumps - Maximum Flow - Both Pumps
126.8gal/min
Maximum System Pressure - Implements
5076psi
Maximum System Pressure - Travel
5076psi
Maximum System Pressure - Swing
4641psi
Maximum System Pressure - Heavy Lift Mode
5511psi
Auxiliary Pump - Reach with Rotate: Maximum Flow
37.2gal/min
Auxiliary Pump - Reach with Rotate: Maximum Pressure
1499psi
Auxiliary Pump - Reach with Rotate: Pump Drive Gear Ratio
1.28:1

Undercarriage

Track Gauge
115.0in
Track Length
199.7in
Ground Clearance
29.5in
Undercarriage Pitch
8.5in
Ground Clearance
29.5in
Track Gauge
115in
Track Length
199.7in

Dimensions: General Forestry (boom stretched out)

Height of Tilted Side Entry Cab
137.7in
Boom Height
146.5in
Overall Height
164.5in
Overall Length (Reach)
499.2in
Tail Swing Radius
143.8in
Distance Between Idler and Sprocket Centerline
158.2in
Track Length
199.7in
Ground Clearance
29.5in
Track Gauge
115.0in
Width with 700 mm (28 in) Shoes
142.6in

Dimensions - General Forestry - Boom Stretched Out

Boom Height
146.5in
Distance Between Idler and Sprocket Centerline
158.2in
Ground Clearance
29.5in
Height of Tilted Side Entry Cab
137.7in
Overall Height
164.5in
Overall Length (Reach)
499.2in
Tail Swing Radius
143.8in
Track Gauge
115in
Track Length
199.7in
Width - With 700 mm (28 in) Shoes
142.6in