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