New CAT Equipment

558 Forest Machine

Performance and availability describe the Cat® 558 Forest Machine. Purpose built, it features extreme-duty component frames that can handle the machine's powerful engine and hydraulics systems ensuring productivity, durability and lower operating costs. Options are available to fit the 538 to your specific forestry tasks.

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Product Specs

Engine

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

Weights

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

Service Refill Capacities

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

Hydraulic System

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

Operating Specifications

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

Undercarriage

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

Dimensions - General Forestry - Boom Stretched Out

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