The Cat® FM548 forest machine can load trucks, process logs, build roads, and more with a choice of configurations and attachments.

Forest Machines FM548 GF/FM548 LL

Cat® FM548 GF/FM548 LL

Request A Price Find Dealer

Key Specs

Engine Model
Cat C7.1
Cat C7.1
Net Power - ISO 9249
271 hp
202.4 kW
Engine Power - ISO 14396
275 hp
205 kW

Overview

Make Logging Simple, Secure and Satisfying

The Cat® FM548 is simply the best choice in its size class for doing roadbuilding, processing, and log-loading work. With 275 HP and significant hydraulic flow and swing torque increases, the superior performance and exceptional operator comfort and safety of the FM548 will help you produce day in and day out.

Benefits

Built for the Operator

The Certified Forestry ROPS cab is sound-suppressed and sealed. Its exceptional, unobstructed jobsite view confidently supports and secures the operator when taking on challenging tree-moving work.

Ready to Work

This versatile machine features multiple configurations up to 23” class processing heads, heel and grapple, powerclam/butt-n-top grapple, and roadbuilding gets the job done no matter the tasks at hand. 


 

Saves Time and Money

Experience increased uptime and low maintenance costs with longer-life fuel and hydraulic oil filters. Cat® fuel filters have double the life of the previous filters, and the hydraulic oil return filter provides up to 50% more service life.

Product Specifications for FM548 GF/FM548 LL

Engine Model Cat C7.1 Cat C7.1
Net Power - ISO 9249 271 hp 202.4 kW
Engine Power - ISO 14396 275 hp 205 kW
Net Power - ISO 9249 (DIN) 275 hp (metric) 275 hp (metric)
Engine Power - ISO 14396 (DIN) 279 hp (metric) 279 hp (metric)
Bore 4.13 in 105 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 Travel Speed 3 mile/h 4.8 km/h
Maximum Drawbar Pull 66319 lbf 295 kN
Main System - Maximum Flow 132.6 gal/min 502 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 4061 psi 28000 kPa
Swing Speed 8.1 r/min 8.1 r/min
Maximum Swing Torque 100308 lb/ft 136 kN·m
General Forestry 83300 lb 37800 kg
Log Loader (U/U) 89290 lb 40500 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
Note (1) General Forestry General Forestry
Shipping Height - Tilted Cab 138 in 3500 mm
Handrail Height 138 in 3500 mm
Length: General Forestry - Boom Stretched Out 469 in 11920 mm
Length: Log Loader - Boom Stretched Out 595 in 15120 mm
Tail Swing Radius 139 in 3530 mm
Counterweight Clearance 59 in 1500 mm
Ground Clearance 31 in 800 mm
Track Length 199 in 5050 mm
Track Length to Center of Rollers 158 in 4020 mm
Track Gauge 110 in 2790 mm
Transport Width 139 in 3530 mm
Max Reach at Stick Nose at Ground Level - General Forestry Road Builder 395 in 10040 mm
Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under 450 in 11440 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 as 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 as a CO2 equivalent of 3.003/3.146 metric tonnes.

FM548 GF/FM548 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
  • 115-amp alternator
  • 24-volt electric starting
  • Horn and travel alarm
  • Pre-start monitoring system
  • Tool control software
  • Secondary engine shutoff switch
  • Cold start package with block heaters

ENGINE

  • Electric fuel priming pump
  • Three selectable modes: Power, Smart, Eco
  • Automatic engine speed control
  • Automatic engine idle shutdown
  • Up to 4600 m (15,092 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 disconnect switch
  • Lockable fuel cap and hydraulic tank
  • Service platforms with anti-skid plate and countersunk bolts
  • Right-hand rail and hand hold
  • Signaling/warning horn
  • Ground-level secondary engine shutoff switch
  • Rearview camera
  • Travel alarm

SERVICE AND MAINTENANCE

  • Side-entry to service platforms
  • Grouped location for engine oil and fuel filters
  • Scheduled Oil Sampling (S·O·S) ports
  • Integrated vehicle health management system

UNDERCARRIAGE AND STRUCTURES

  • High Wide undercarriage
  • 8.5" pitch Cat grease lubricated track chain with pressed fit pin
  • Catwalks
  • Tie down points
  • Counterweight fuel tank
  • Heavy-duty track rollers and frames
  • 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

FM548 GF/FM548 LL Optional Equipment

BOOMS AND STICKS

  • 5.9 m (19'6") Reach boom - General Forestry
  • 6.55 m (21'6") boom - Log Loader
  • 2.95 m (9'6") Reach stick
  • 3.71 m (12'2") Goose Neck stick
  • 3.76 m (12'4") Under/Under stick
  • 4.05 m (13'3") Over/Under stick
  • 4.05 m (13'3") Power Clam stick
  • CB2 family bucket linkage

CAB

  • Side entry with 559 mm (22") tilting riser
  • Rear entry with 1219 mm (48") tilting riser
  • Rear entry with 1829 mm (72") tilting riser

ELECTRICAL SYSTEM

  • Premium General Forestry lighting package
  • Premium Log Loader lighting package

ENGINE

  • Cold start package with block heaters and ether assist

HYDRAULIC SYSTEM

  • Medium pressure circuit

SAFETY AND SECURITY

  • Right-hand-sideview cameras
  • Inspection lighting

UNDERCARRIAGE AND STRUCTURES

  • 900 mm (36") triple grouser Tri Link shoes
  • 850 mm (33") triple grouser shoes
  • 700 mm (28") double or single grouser shoes

See how FM548 GF/FM548 LL compares against frequently compared products.

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

Compare All Models

Media Gallery

FM548 General Forestry and Log Loader Machine

FM548 General Forestry and Log Loader Machine

FM548 General Forestry and Log Loader Machine

FM548 General Forestry and Log Loader Machine

FM548 General Forestry and Log Loader Machine
FM548 General Forestry and Log Loader Machine
FM548 General Forestry and Log Loader Machine
FM548 General Forestry and Log Loader Machine

Cat® Next Generation FM548 Forestry Machines: Logging Made Simple, Secure, And Satisfying

Cat® Forestry Machines Help A Family Business Grow

Cat® Next Generation FM548 Forestry Machines: Logging Made Simple, Secure, And Satisfying
Cat® Forestry Machines Help A Family Business Grow

360 View