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548

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Overview

The 548 features ultimate machine efficiency coupled with enhanced performance. Cat® components, purpose built upper and lower frames, and application specific linkage configurations increase machine up time and lower machine operating costs.

Service Refill Capacities

  • Fuel Tank - CWT 261.4 gal (US) 989.3 l
  • DEF Tank 12.2 gal (US) 46.0 l
  • Engine Crankcase 6.3 gal (US) 24.0 l
  • Cooling System 7.9 gal (US) 30.0 l
  • Final Drive - Each 2.9 gal (US) 11.0 l
  • Hydraulic Tank 46.2 gal (US) 175.0 l
  • Hydraulic System - Total 75.3 gal (US) 285.0 l
  • Swing Drive 2.4 gal (US) 9.0 l

Hydraulic System

  • Main Pumps - Maximum Flow - Per Pump 59.7 gal/min 226.0 l/min
  • Main Pumps - Maximum Flow - Both Pumps 119.4 gal/min 452.0 l/min
  • Maximum System Pressure - Implements 5076.0 psi 35000.0 kPa
  • Maximum System Pressure - Travel 5076.0 psi 35000.0 kPa
  • Maximum System Pressure - Swing 4424.0 psi 30500.0 kPa
  • Maximum System Pressure - Heavy Lift Mode 5511.0 psi 38000.0 kPa
  • Auxiliary Pump - Reach with Rotate: Pump Drive Gear Ratio 1.28:1 1.28:1
  • Auxiliary Pump - Reach with Rotate: Maximum Flow 34.1 gal/min 129.0 l/min
  • Auxiliary Pump - Reach with Rotate: Maximum Pressure 1499.0 psi 10335.0 kPa

Operating Specifications

  • Maximum Speed - Turtle 1.6 mile/h 2.6 km/h
  • Maximum Speed - Rabbit 3.0 mile/h 4.8 km/h
  • Maximum Drawbar Pull 70320.0 lbf 313.0 kN
  • Swing Torque (GF) 64441.0 ft·lbf 87.4 kN·m
  • Maximum Swing Speed (GF) 9.3 r/min 9.3 r/min

Undercarriage

  • Undercarriage Pitch 8.5 in 215.9 mm
  • Track Gauge 110.6 in 2809.0 mm
  • Track Length 198.2 in 5035.0 mm
  • Ground Clearance 30.5 in 774.0 mm

Engine

  • Engine Model Cat C7.1 ACERT Cat C7.1 ACERT
  • Gross Power 204.0 HP 152.0 kW
  • Gross Power - 1,800 rpm 204.0 HP 152.0 kW
  • Engine Speed - Operation 1600.0 r/min 1600.0 r/min
  • Engine Speed - Travel 1800.0 r/min 1800.0 r/min
  • Displacement 428.0 in³ 7.01 l
  • Number of Cylinders 6 6

Weights

  • Estimated Operating Weight without Attachment - General Forestry, Processor 77942.0 lb 35354.0 kg

Dimensions - General Forestry - Processor - Boom Stretched Out

  • Height of Tilted Side Entry Cab 137.0 in 3479.0 mm
  • Boom Height 147.4 in 3745.0 mm
  • Overall Height 164.0 in 4166.0 mm
  • Overall Length (Reach) 495.7 in 12592.0 mm
  • Tail Swing Radius 137.8 in 3501.0 mm
  • Distance Between Idler and Sprocket Centerline 158.2 in 4019.0 mm
  • Track Length 198.2 in 5035.0 mm
  • Ground Clearance 30.5 in 774.0 mm
  • Track Gauge 110.6 in 2809.0 mm
  • Width - With 700 mm (28 in) Shoes 138.1 in 3509.0 mm

Efficiency

        
  • Engine, hydraulics, and work tool integration are optimized to minimize power losses and increase overall machine efficiency
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  • Steady state high idle speed and U.S. EPA Tier 4 Final technology reduce fuel consumption
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  • Larger hydraulic pumps allow 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
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  • Machine designed for integration and optimization with Cat grapples
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  • Powerful, multi-functioning hydraulics, combined with strong machine performance ensure work tools function quickly and smoothly to complete work faster

Performance

        
  • Cat 152 kW (204 hp) C7.1 ACERT™ Tier 4 Final engine with increased horsepower maintains maximum performance under load
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  • Strong hydraulic horsepower for efficient implement performance and greater productivity
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  • An increase in swing torque of 19 percent on General Forestry models and 18 percent on Log Loader models, provides added power to move trees, which enables more efficiency and productivity
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  • Heavy lift mode features increased lift capacity to handle larger payloads with improved control
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  • 989 L (261 gal) counterweight fuel tank for extended machine operation and maximum uptime
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  • Machine width and track length designed for stability in varied logging applications

Application Versatility

        
  • Boom arrangements and hydraulic systems for specific applications enable more effective road building, loading, processing, shoveling, or millyard stacking
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  • New track options meet shovel logging and low ground pressure application requirements
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  • Ground saw hydraulics are available for log loader applications
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  • Two premium rear entry cab choices, available on the Log Loader, include a 1219 mm (48 in) or a 1829 mm (72 in) cab forward riser
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  • 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
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  • Cooling capability increased 12 percent for trouble-free operation
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  • 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
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  • Large, 216 mm (8.5 in) pitch (336 HEX), grease lubricated tracks, provide excellent life in variable forestry working conditions
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  • 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
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  • 0.56 m3 (19.8 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
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  • Fully adjustable, air ride cab seat that includes heating and cooling capability for comfort and reduced operator fatigue
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  • LED lights increase visibility
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  • Rear entry cab option provides improved access on a fully lit platform through the use of a key FOB
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  • Rear entry cab window design improves visibility for shovel logging and other applications
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  • Rear entry cab includes a new innovative cab lock down system that minimizes transport time and improves uptime
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  • Tool control software as standard equipment for swapping and selecting tools quickly and efficiently
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  • Cat Product Link™ allows for remote location of a machine and enables tracking of fuel consumption and other events

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