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.

Gross Power - 1,800 rpm 204 HP

Estimated Operating Weight without Attachment - General Forestry, Processor 77942 lb

Dimensions - General Forestry - Processor - Boom Stretched Out
Height of Tilted Side Entry Cab 137 in
Boom Height 147.4 in
Overall Height 164 in
Overall Length (Reach) 495.7 in
Tail Swing Radius 137.8 in
Distance Between Idler and Sprocket Centerline 158.2 in
Track Length 198.2 in
Ground Clearance 30.5 in
Track Gauge 110.6 in
Width - With 700 mm (28 in) Shoes 138.1 in

Engine Model Cat C7.1 ACERT
Gross Power 204 HP
Engine Speed - Operation 1600 r/min
Engine Speed - Travel 1800 r/min
Displacement 428 in³
Number of Cylinders 6

Service Refill Capacities
Fuel Tank - CWT 261.4 gal (US)
DEF Tank 12.2 gal (US)
Engine Crankcase 6.3 gal (US)
Cooling System 7.9 gal (US)
Final Drive - Each 2.9 gal (US)
Hydraulic Tank 46.2 gal (US)
Hydraulic System - Total 75.3 gal (US)
Swing Drive 2.4 gal (US)

Hydraulic System
Main Pumps - Maximum Flow - Per Pump 59.7 gal/min
Main Pumps - Maximum Flow - Both Pumps 119.4 gal/min
Maximum System Pressure - Implements 5076 psi
Maximum System Pressure - Travel 5076 psi
Maximum System Pressure - Swing 4424 psi
Maximum System Pressure - Heavy Lift Mode 5511 psi
Auxiliary Pump - Reach with Rotate: Pump Drive Gear Ratio 1.28:1
Auxiliary Pump - Reach with Rotate: Maximum Flow 34.1 gal/min
Auxiliary Pump - Reach with Rotate: Maximum Pressure 1499 psi

Operating Specifications
Maximum Speed - Turtle 1.6 mile/h
Maximum Speed - Rabbit 3 mile/h
Maximum Drawbar Pull 70320
Swing Torque (GF) 64441 ft·lbf
Maximum Swing Speed (GF) 9.3 r/min

Undercarriage Pitch 8.5 in
Track Gauge 110.6 in
Track Length 198.2 in
Ground Clearance 30.5 in


  • 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 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
  • 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


  • Cat 152 kW (204 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 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
  • 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

Application Versatility

  • Boom arrangements and hydraulic systems for specific applications enable more effective road building, loading, processing, shoveling, or millyard stacking
  • New track options meet shovel logging and low ground pressure application requirements
  • Ground saw hydraulics are available for log loader applications
  • 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
  • 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 capability increased 12 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 (336 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
  • 0.56 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
  • 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 improved access on 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 software 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