FM558 GF/FM558 LL

Forest Machines FM558 GF/FM558 LL

Request A Price Find Dealer

Key Specs

Engine Model
Cat C7.1
Cat C7.1
Net Power - ISO 9249
298 HP
222.5 kW
Engine Power - ISO 14396
302 HP
225.1 kW

Overview

Woods Work Made More Productive, Profitable and Pleasant

Put the Cat® FM558 to work and experience superior performance and extraordinary bottom-line results. In its size class, there’s no better machine for moving timber. The FM558 has advanced safety and comfort features to make your shovel logging, loading, roadbuilding, and processing work more productive and enjoyable.

Benefits

Increased Power and Efficiency

Easily move heavy timber with up to 25% more engine power and up to 30% more swing power. Heavy lift mode gives an additional boost for larger logs. Up to 15% more travel power gets you to work faster than ever.

Best-In-Class Cab Comfort

Sites where the FM558 typically works are rugged and challenging. That’s why it’s important that the cab keeps the operator comfortable and protected from fatigue, stresses, sounds, and outside temperatures.

Reduced Maintenance Costs

The FM558’s extended and synchronized service intervals mean you’ll be able to spend more time working and up to 15% less in maintenance costs than the previous model.

Product Specifications for FM558 GF/FM558 LL

Engine Model Cat C7.1 Cat C7.1
Net Power - ISO 9249 298 HP 222.5 kW
Engine Power - ISO 14396 302 HP 225.1 kW
Net Power - ISO 9249 (DIN) 303 hp (metric) 303 hp (metric)
Engine Power - ISO 14396 (DIN) 306 hp (metric) 306 hp (metric)
Bore 4.13 in 115 mm
Stroke 5.31 in 135 mm
Displacement 433.3 r/min 7.1 r/min
Biodiesel Capability B20¹ B20¹
Emissions Meets U.S. EPA Tier 4 Final, EU Stage V emission standards. Meets U.S. EPA Tier 4 Final, EU Stage V emission standards.
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,800 rpm. Advertised power is tested per the specified standard in effect at time of manufacture. Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,800 rpm. Advertised power is tested per the specified standard in effect at time of manufacture.
Note (2) ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or Caterpillar Machine Fluids Recommendations (SEBU6250) for details. *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or Caterpillar Machine Fluids Recommendations (SEBU6250) for details. *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
Maximum Drawbar Pull 78638 lbf 350 kN
Maximum Travel Speed 2.8 mile/h 4.4 km/h
Main System - Maximum Flow 142 gal/min 538 l/min
Maximum Pressure - Equipment 5076 psi 35000 kPa
Maximum Pressure - Equipment - Lift Mode 5511 psi 38000 kPa
Maximum Pressure - Travel 5076 psi 35000 kPa
Maximum Pressure - Swing 3945 psi 27200 kPa
Swing Speed 7.4 r/min 7.4 r/min
Maximum Swing Torque 113584 lb/ft 154 kN·m
General Forestry 91490 lb 41500 kg
Log Loader (U/U) 98550 lb 44700 kg
Fuel Tank 262 gal (US) 990 l
Cooling System 10 gal (US) 38 l
Engine Oil 7 gal (US) 25 l
Swing Drive 4 gal (US) 13.5 l
Final Drive - Each 3 gal (US) 9.5 l
Hydraulic System - Including Tank 92 gal (US) 348 l
Hydraulic Tank 49 gal (US) 185 l
DEF Tank 11 gal (US) 41 l
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under 472 in 11980 mm
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder 418 in 10620 mm
Note (1) General Forestry General Forestry
Length: General Forestry - Boom Stretched Out 554 in 14060 mm
Length: Log Loader - Boom Stretched Out 619 in 15730 mm
Track Gauge 115 in 2920 mm
Shipping Height - Tilted Cab 148 in 3760 mm
Track Length 203 in 5160 mm
Track Length to Center of Rollers 162 in 4120 mm
Tail Swing Radius 139 in 3530 mm
Transport Width 144 in 3650 mm
Counterweight Clearance 60 in 1520 mm
Handrail Height 138 in 3510 mm
Ground Clearance 30 in 770 mm
Note (1) The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.1 (22" Riser CAB)/2.2 (48"/72" Riser CAB) kg of refrigerant, which has a CO2 equivalent of 3.003/3.146 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.1 (22" Riser CAB)/2.2 (48"/72" Riser CAB) kg of refrigerant, which has a CO2 equivalent of 3.003/3.146 metric tonnes.

FM558 GF/FM558 LL Standard Equipment

CAB

  • ROPS Forestry cab with polycarbonate windows
  • 4-point harness seat belt
  • Heated and cooled seat with air-adjustable suspension
  • Integrated joysticks
  • Tilt-up left-side console (side-entry cab only)
  • High-resolution touchscreen monitor
  • Bluetooth integrated radio (including USB, aux port and microphone)
  • 12V DC outlets
  • Keyless push-to-start engine control
  • Automatic bi-level air conditioner
  • LED dome and floor lights
  • Windshield wiper and washer
  • Behind seat storage
  • Retractable sunshade

CAT TECHNOLOGIES

  • VisionLink®
  • Remote Services capability

ELECTRICAL SYSTEM

  • Maintenance-free 1000 CCA batteries (x4)
  • Centralized electrical disconnect switch
  • LED chassis, boom (GF), stick (LL) and cab lights

ENGINE

  • Electric fuel priming pump
  • Three selectable modes: Power, Smart, Eco
  • Automatic engine speed control
  • Automatic engine idle shutdown
  • Up to 4500m (14,764 ft) altitude capability
  • 52° C (126° F) high-ambient cooling capacity
  • -32° C (-25° F) cold start capability
  • Hydraulic reverse fan
  • Two-stage fuel filter system
  • Double element air filter with integrated pre-cleaner

HYDRAULIC SYSTEM

  • Boom and stick regeneration circuits
  • Boom and stick drift reduction valve
  • Electronic main control valve
  • Automatic hydraulic oil warmup
  • Automatic swing parking brake
  • High performance hydraulic return filter
  • Automatic two speed travel
  • Bio hydraulic oil capability
  • High torque swing drive
  • Swing cushion valve
  • Tool control software

SAFETY AND SECURITY

  • Caterpillar One Key security system
  • Lockable service doors
  • Lockable external tool/storage box
  • Lockable fuel caps and hydraulic tank
  • Service platforms with anti-skid plate and countersunk bolts
  • RH handrail and handhold
  • Signaling/warning horn
  • Ground-level secondary engine shutoff switch
  • Rearview camera
  • Travel alarm

SERVICE AND MAINTENANCE

  • Side-entry service platform
  • Left/right-side fuel fill locations
  • Grouped location for engine oil and fuel filters
  • S·O·S sampling ports

UNDERCARRIAGE AND STRUCTURES

  • High Wide undercarriage
  • Grease lubricated track with positive pin retention
  • Catwalks
  • Tie down points
  • Counterweight fuel tank
  • Heavy-duty track rollers
  • Heavy-duty travel motor guards
  • Heavy-duty bottom guards
  • Track guiding guards
  • High drawbar final drives
  • Heavy-duty recoil springs
  • Heavy-duty hydraulic swivel
  • Heavy-duty hydraulic swivel guard

FM558 GF/FM558 LL Optional Equipment

BOOMS AND STICKS

  • 6.15 m (20'2") Reach boom - General Forestry
  • 6.08 m (22'4") boom - Log Loader
  • 3.2 m (10'6") Reach stick
  • 4.05 m (13'3") over/under stick
  • 4.05 m (13'3") under/under
  • 4.35 m (14'3") power clam

CAB

  • Rear entry
  • Side entry
  • 559 mm (22") tilting riser
  • 1219 mm (48") tilting riser
  • 1829 mm (72") tilting riser
  • CB radio mounts
  • Cat Stick Steer
  • Auxiliary relay

ELECTRICAL SYSTEM

  • Premium lighting - General Forestry - 6 additional LED lights
  • Premium lighting - Log Loader - 10 additional LED lights

ENGINE

  • Cold start package with block heater and ether assist

HYDRAULIC SYSTEM

  • Medium pressure circuit

SAFETY AND SECURITY

  • Easy lock cab tilting system (rear-entry cab only)
  • Cab riser light
  • Inspection lighting
  • Right-hand sideview camera
  • Swing alarm

SERVICE AND MAINTENANCE

  • Integrated vehicle health management system

UNDERCARRIAGE AND STRUCTURES

  • 850 mm (33") triple grouser shoes
  • 700 mm (28") double and single grouser shoes

See how FM558 GF/FM558 LL compares against frequently compared products.

Use the comparison tool to compare detailed specs of Cat and competitor models.

COMPARE ALL MODELS

Product Brochures and More Are Ready to Download!

Take the interactive virtual product tour to explore the great features and benefits of the FM558 GF/FM558 LL

Start FM558 GF/FM558 LL Tour
close
warning

Internet Explorer users may experience issues with certain features of our site.
Please try a current version of an alternate browser (i.e. Google Chrome, Microsoft Edge, Mozilla Firefox) for the full Cat.com experience.