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Wheel Skidders(Non Current)

For log skidding applications, Cat builds a full line of both track and wheel skidders. Whether you're working on steep terrain or in poor underfoot conditions, you'll find a Cat skidder to match your needs.

525C Wheel Skidder

New Cat C-Series Wheel Skidders with ACERT™ Technology offers maximum productivity, reliability and lower owner and operating cost while meeting Tier3 emission standard regulations.

Product Details

Engine

Net Flywheel Power 136.0 kW
Engine Model Cat© C7 ACERT™
Net Power - ISO 9249 136.0 kW
Net Power - SAE J1349 136.0 kW
Gross Power 146.0 kW
Displacement 7.2 L
Bore 110.0 mm
Stroke 127.0 mm
Max Torque @ Rated Speed 896 N-m at 1400 RPM
Derating Altitude 2285.0 m
Air Cleaner Dry precleaner
Alternator 80 amp
Fan Speed 1620.0 RPM
Fan Type Blower
Electrical System 24V
Battery - Quantity 2
Battery - Volts 12V
Battery - Capacity 950 CCA
Starting System Direct electric
Number of Cylinders 6
Engine Make Caterpillar

Dimensions

Wheelbase 3534.0 mm
Length 8369.0 mm
Overall width 3398.0 mm
Height 3184.0 mm
Ground Clearance 581.0 mm
Top roller height (cable) 2794.0 mm
Axle height 843.0 mm
Rear axle to pin 1798.0 mm
Length - overall, grapple, dual 7626.0 mm
Decking blade lift height 1381.0 mm
Decking blade dig depth 456.0 mm
Height - top of cab 3184.0 mm
Decking blade width 3138.0 mm
Tread width 2622.0 mm
Turning radius over tires 6000.0 mm

Weights

Weight - Dual Function 17711.0 kg

Grapple

Grapple Capacity 1.16 m2
Thinning Capacity 1.34 m2
Sorting Capacity 0.83 m2

Service Refill

Fuel Tank 315.0 L
Cooling System 56.7 L
Differential, Final Drive - Front 52.0 L
Differential, Final Drive - Rear 52.0 L
Engine Oil 27.0 L
Transmission, Torque Converter 54.0 L
Mechanical Winch 24.5 L
Hydraulic System - Tank 54.0 L
Hydraulic System - Total 112.0 L

Power Train

Travel Speed - Fwd. 1st 6.4 km/h
Travel Speed - Fwd. 2nd 9.0 km/h
Travel Speed - Fwd. 3rd 10.9 km/h
Travel Speed - Fwd. 4th 15.3 km/h
Travel Speed - Fwd. 5th 27.5 km/h
Travel Speed - Rev. 1st 6.2 km/h
Travel Speed - Rev. 2nd 10.5 km/h
Travel Speed - Rev. 3rd 18.6 km/h
Torque Converter - Type Lock-up clutch
Transmission 5 fwd / 3 rev countershaft, powershift
Steering, frame articulation +/- 45°
Brakes - Service Type Single disc WET enclosed
Brakes - Parking Type Drum brake on rear output of transmission drop box
Transmission Cooler Type Plate

Hydraulic System

Circuit Type Closed center, variable flow
Pump Type Axial piston
Pump Output 174.0 L/min
Relief Valve Setting 21000.0 kPa
Reservoir Tank Capacity 54.0 L
Steering Valve Direct link, non-follow
Steering Cylinder - Bore 88.9 mm
Steering Cylinder - Stroke 437.5 mm
Steering Cylinder - Rod Diameter 50.8 mm
Dozer Valve Electro-hydraulic
Dozer Cylinder - Bore 101.6 mm
Dozer Cylinder - Stroke 470.0 mm
Dozer Cylinder - Rod Diameter 57.15 mm
Grapple Valve 4 or 5 stack, pilot

Arch

Dual Function - Reach Max 1336.0 mm
Single Function - Reach Max 1336.0 mm

Arch, Dual Function

Lift highest, retracted 2623.0 mm
Lift highest, farthest 1944.0 mm
Lift maximum reach 1336.0 mm
Lift lowest, retracted 752.0 mm
Lift lowest, farthest 259.0 mm
Loaded tire radius 843.0 mm
Reach highest, retracted 1513.0 mm
Reach lowest, retracted 1469.0 mm
Reach lowest, farthest 2488.0 mm
Reach highest, farthest 2765.0 mm
Reach maximum 2880.0 mm

Arch, Single Function

Lift highest, retracted 2212.0 mm
Lift lowest, farthest 600.0 mm
Loaded tire radius 843.0 mm
Reach highest, retracted 1630.0 mm
Reach lowest, farthest 2521.0 mm

Grapple, CR - Bunching

Grapple capacity 1.16 m2
Tip to tip height 1920.0 mm
Tong opening 3050.0 mm
Full open height 1677.0 mm
Minimum stem diameter 155.0 mm
Full closed height 1285.0 mm

Grapple, CR - Thinning

Grapple capacity 1.34 m2
Tip to tip height 1981.0 mm
Tong opening 3124.0 mm
Full open height 1832.0 mm
Minimum stem diameter 190.0 mm
Full closed height 1371.0 mm

Winch - Grapple Skidder

Max Line Pull - Bare Drum 175.0 kN
Max Line Speed 40.2 m/min
Drum Capacity 19.0mm (3/4in) 47.0 m
Drum Capacity 22.2mm (7/8in) 30.0 m
Drum capacity 25.4mm (1in) 28.0 m
Drum Diameter 229.0 mm
Drum Width 279.0 mm

Winch - Cable Skidder

Max Line Pull - Bare Drum 183.5 kN
Max Line Speed 110.0 m/min
Drum Capacity 19.0mm (3/4in) 45.0 m
Drum Capacity 22.2mm (7/8in) 32.0 m
Drum capacity 25.4mm (1in) 25.0 m
Drum Diameter 254.0 mm
Drum Width 279.0 mm

MSC Comments

Spec Date 5/06
  • Electrical
    •  24V electrical system
    •  Alarm, back-up
    •  Alternator, 80 amp
    •  Batteries, maintenance free (2-1000CCA)
    •  Lighting system, exterior lights (4 total)
    •  Main disconnect switch
    •  Starter, electric, heavy duty
    •  Starting and charging system
    •  Diagnostic connector
    •  Horn, warning
  • 24V electrical system
    • Alarm, back-up
      • Alternator, 80 amp
        • Batteries, maintenance free (2-1000CCA)
          • Lighting system, exterior lights (4 total)
            • Main disconnect switch
              • Starter, electric, heavy duty
                • Starting and charging system
                  • Diagnostic connector
                    • Horn, warning
                      • Operator Environment
                        •  12V accessory power port
                        •  Seat, air suspension
                        •  Beverage holder
                        •  Cab, ROPS/FOPS certified
                        •  Computerized Monitoring System
                      • Power Train
                        •  Air cleaner, 2-stage with precleaner
                        •  Brakes
                        •  Differential locks (front, rear)
                        •  Driveline slipjoint, lubed for life
                        •  Engine, Cat C7, ACERT Technology, ATAAC
                        •  Fan, blower
                        •  Filters, fuel/engine air, primary/secondary
                        •  Final drives, inboard planetary
                        •  Fuel transfer pump (electric)
                        •  Fuel tank, high capacity
                        •  Lock-up torque converter
                        •  Muffler
                        •  Radiator with clean-out doors
                        •  Steering, variable flow-modulated 1/4 turn
                        •  Transmission, countershaft powershift (5F/3R)
                        •  Universal joints, lubed for life
                      • Hydraulics
                        •  Closed center-load sensing system
                        •  Hitch hoses, Caterpillar ToughGuard™
                        •  Line filter, full flow return
                        •  Hydraulic oil cooler, Spin-on filters
                        •  Variable displacement piston pump, 46 gal/min (174.1 L/min)
                      • Closed center-load sensing system
                        • Hitch hoses, Caterpillar ToughGuard™
                          • Line filter, full flow return
                            • Hydraulic oil cooler, Spin-on filters
                              • Variable displacement piston pump, 46 gal/min (174.1 L/min)
                                • Other standard equipment
                                  •  Articulation lock link
                                  •  Brush sweeps, front
                                  •  Decking blade with replaceable bolt-on cutting edge
                                  •  Ecology drains (engine, hyd tank, axles, transmission)
                                  •  Engine enclosures, hinged
                                  •  Guards, hinged - bottom and radiator
                                  •  SOSSM sampling ports
                                  •  Vandalism protection, lockable doors and cap locks
                                • Power Train
                                  •  Standard Gross Power - 146 kW (196 hp)
                                  •  Dual Gross Power
                                • Standard Gross Power - 146 kW (196 hp)
                                  • Dual Gross Power
                                    • Arch
                                      •  Dual function
                                      •  Single function
                                      •  Cable skidding
                                      •  Industrial arrangement
                                    • Axles
                                      •  Heavy duty (wide tire/chains)
                                      •  Standard duty
                                    • Heavy duty (wide tire/chains)
                                      • Standard duty
                                        • Blade
                                          •  Narrow decking
                                          •  Wide decking
                                          •  Extended decking
                                        • Cab, enclosed, with window screens
                                          •  ROPS, open
                                          •  ROPS, enclosed with heat/AC
                                          •  Window screens
                                          •  Wipers, front and rear
                                        • Electrical
                                          •  Converter, high capacity 12V, 10A continuous, 15A peak
                                          •  Jump start receptacle
                                        • Fenders, heavy duty
                                          • Grapples - Cat Continuous Rotation
                                            •  Bunching
                                            •  Sorting
                                            •  Thinning
                                          • Bunching
                                            • Sorting
                                              • Thinning
                                                • Lights
                                                  •  Additional 8 (2 front, 2 rear, 2 per side)
                                                • Additional 8 (2 front, 2 rear, 2 per side)
                                                  • Pre-cleaner, turbine
                                                    • Starting aid package, cold weather
                                                      • Steering, secondary
                                                        • Tires and Tubes, set of four, logger (LS-2)
                                                          •  30.5L-32, 20 PR
                                                          •  30.5L-32, 26 PR
                                                          •  35.5L-32, 20 PR
                                                          •  35.5L-32, 26 PR
                                                          •  Dual ring capable
                                                          •  Narrow overall width options
                                                        • 30.5L-32, 20 PR
                                                          • 30.5L-32, 26 PR
                                                            • 35.5L-32, 20 PR
                                                              • 35.5L-32, 26 PR
                                                                • Dual ring capable
                                                                  • Narrow overall width options
                                                                    • Water tank
                                                                      • Winch
                                                                        •  Grapple
                                                                        •  Cable skidding
                                                                      • Grapple
                                                                        • Cable skidding
                                                                          Built for it