558 LL Forest Machine 558 LL Forest Machine
558 LL Forest Machine Testimonial 558 LL Forest Machine Testimonial

SPECS SUMMARY

Engine ModelCat C7.1 ACERT
Net Flywheel Power239 HP (178 kW)
Gross Power239 HP (178 kW)
Displacement428 r/min (7.01 r/min)
The 558 LL 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.


Specifications

Engine ModelCat C7.1 ACERT
Net Flywheel Power239 HP (178 kW)
Gross Power239 HP (178 kW)
Displacement428 r/min (7.01 r/min)
Engine Speed - Operation1750 r/min (1750 r/min)
Engine Speed - Travel1800 r/min (1800 r/min)
Gross Power at 2,200 rpm239 HP (178 kW)
Number of Cylinders6
Estimated Operating Weight without Attachment - Log Loader (O/U)93004 lb (42186 kg)
Estimated Operating Weight without Attachment - Log Loader (U/U)93176 lb (42264 kg)
Cooling System7.9 gal (US) (30 B)
Swing Drive2.9 gal (US) (11 B)
Hydraulic Tank46.2 gal (US) (175 B)
DEF Tank12.2 gal (US) (46 B)
Engine Crankcase6.3 gal (US) (24 B)
Final Drive - Each2.9 gal (US) (11 B)
Fuel Tank - CWT261.4 gal (US) (989.3 B)
Hydraulic System - Total81.9 gal (US) (310 B)
Auxiliary Pump - Bnt/Power Clam: Maximum Flow37.2 gal/min (141 l/min)
Auxiliary Pump - Bnt/Power Clam: Maximum Pressure1499 psi (10335 kPa)
Auxiliary Pump - Bnt/Power Clam: Pump Drive Gear Ratio1.28:1
Auxiliary Pump - U/U and O/U - Maximum Flow14 gal/min (53 l/min)
Auxiliary Pump - U/U and O/U - Maximum Pressure1499 psi (10335 kPa)
Main Pumps - Maximum Flow - Both Pumps126.8 gal/min (480 l/min)
Main Pumps - Maximum Flow - Per Pump63.4 gal/min (240 l/min)
Maximum System Pressure - Heavy Lift Mode5511 psi (38000 kPa)
Maximum System Pressure - Implements5076 psi (35000 kPa)
Maximum System Pressure - Swing4641 psi (32000 kPa)
Maximum System Pressure - Travel5076 psi (35000 kPa)
Maximum Drawbar Pull72164 lbf (321 kN)
Maximum Speed - Rabbit2.3 mile/h (3.7 km/h)
Maximum Speed - Turtle1.5 mile/h (2.4 km/h)
Maximum Swing Speed7.5 r/min (7.5 r/min)
Swing Torque86295 ft·lbf (117 )
Ground Clearance29.5 in (749 mm)
Track Gauge115 in (2921 mm)
Track Length199.7 in (5072 mm)
Undercarriage Pitch8.5 in (215.9 mm)
Boom Height115 in (2921 mm)
Distance Between Idler and Sprocket Centerline158.2 in (4019 mm)
Ground Clearance29.5 in (749 mm)
Height of Tilted Side Entry Cab137.7 in (3498 mm)
Overall Height194.2 in (4932 mm)
Overall Length (U/U)628.6 in (15967 mm)
Tail Swing Radius143.8 in (3653 mm)
Track Gauge115 in (2921 mm)
Track Length199.7 in (5072 mm)
Width - With 700 mm (28 in) Shoes142.6 in (3621 mm)

Benefits and Features

  • Cat 178 kW (239 hp) C7.1 ACERT™ Tier 4 Final engine with increased horsepower maintains maximum performance under load
  • Strong hydraulic horsepower for efficient implement performance and greater productivity
  • An increase in swing torque of 35 percent on Log Loader models, provides added power to move trees, which enables more efficiency and productivity
  • Heavy lift mode features increased lift capacity to handle larger payloads with improved control
  • 989 L (261 gal) counterweight fuel tank for extended machine operation and maximum uptime
  • Machine width and track length designed for stability in varied logging applications

  • Engine, hydraulics, and work tool integration are optimized to minimize power losses and increase overall machine efficiency
  • Steady state high idle speed and U.S. EPA Tier 4 Final technology reduce fuel consumption
  • Larger hydraulic pump allows engine to operate at lower rpms with increased performance to maximize efficiency
  • Component layout and back-to-back main hydraulic control valve reduce oil flow restrictions and aid in greater fuel economy
  • Machine designed for integration and optimization with Cat grapples
  • Powerful, multi-functioning hydraulics, combined with strong machine performance ensure work tools function quickly and smoothly to complete work faster

  • Boom arrangements and hydraulic systems for specific applications enable more effective road building, loading, processing, shoveling, or millyard stacking
  • New track option meets shovel logging application requirements
  • Two new premium rear entry cab choices, available on the Log Loader, include a 1219 mm (48 in) straight riser or a 1829 mm (72 in) cab forward riser
  • Purpose built processor cab option that includes 19 mm (0.75 in) front windows

  • Variable pitch, reversing cooling fan maintains optimum fluid temperature in heavy duty forestry applications
  • Cooling capacity increased 33 percent for trouble-free operation
  • Purpose built upper frame, high-wide carbody, robust linkage configurations, and heavy-duty enclosures are reinforced with thick doubler plates, extra gussets, and other reinforcements for structural integrity in severe applications
  • Large, 216 mm (8.5 in) pitch (349 HEX), grease lubricated tracks, provide excellent life in variable forestry working conditions
  • Validated and proven excavator technologies ensure overall machine reliability

  • One-piece engine hood design, with two opening angles, allows easy access to engine and cooling compartments
  • Side-by-side engine and hydraulic coolers are easy to access for cleaning, while reduced cooling fins per inch allows better debris flow-through and reduced clogging potential
  • 0.71 m3 (25 ft3) of storage space at ground level, provides ready access to tools, equipment, and supplies that operators use daily

  • Premium fit and finishes to maximize operator experience
  • Fully adjustable, air ride cab seat that includes heating and cooling capability for comfort and reduced operator fatigue
  • LED lights increase visibility
  • Rear entry cab option provides safe access through a fully lit platform through the use of a key FOB
  • Rear entry cab window design improves visibility for shovel logging and other applications
  • Rear entry cab includes a new innovative cab lock down system that minimizes transport time and improves uptime
  • Tool control as standard equipment for swapping and selecting tools quickly and efficiently
  • Cat Product Link™ allows for remote location of a machine and enables tracking of fuel consumption and other events