Cat Forest Machines 558

Performance

• 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 17 percent on General Forestry 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

 

Efficiency

• 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

Application Versatility

• 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

• Purpose built processor cab option that includes 19 mm (0.75 in) front windows

Reliability and Durability

• 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

Serviceability

• 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

Operator Comfort and Technology

• 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

Overview

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.

Engine

Units:

• US

• Metric

Weights

Service Refill Capacities

Hydraulic System

Operating Specifications

Undercarriage

Dimensions - General Forestry - Boom Stretched Out