SPECS SUMMARY

Engine ModelCat C7.1 ACERT
Net Flywheel Power239 HP (178 kW)
Gross Power239 HP (178 kW)
Displacement428 in³ (7.01 l)
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.


Specifications

Engine ModelCat C7.1 ACERT
Net Flywheel Power239 HP (178 kW)
Gross Power239 HP (178 kW)
Displacement428 in³ (7.01 l)
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: General Forestry (Reach)85239 lb (38664 kg)
Cooling System7.9 gal (US) (30 l)
Swing Drive2.9 gal (US) (11 l)
Hydraulic Tank46.2 gal (US) (175 l)
DEF Tank12.2 gal (US) (46 l)
Engine Crankcase6.3 gal (US) (24 l)
Final Drive - Each2.9 gal (US) (11 l)
Fuel Tank - CWT261.4 gal (US) (989.3 l)
Hydraulic System - Total81.9 gal (US) (310 l)
Auxiliary Pump - Reach with Rotate: Maximum Flow37.2 gal/min (141 l/min)
Auxiliary Pump - Reach with Rotate: Maximum Pressure1499 psi (10335 kPa)
Auxiliary Pump - Reach with Rotate: Pump Drive Gear Ratio1.28:1
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 (321 kN)
Maximum Speed - Rabbit2.3 mile/h (3.7 km/h)
Maximum Speed - Turtle1.5 mile/h (2.4 km/h)
Maximum Swing Speed (GF)7.5 r/min (7.5 r/min)
Swing Torque (GF)74494 ft·lbf (101 kN·m)
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 Height146.5 in (3720 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 Height164.5 in (4178 mm)
Overall Length (Reach)499.2 in (12680 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)