525D

Heavy Equipment

525D

Gross Power
203 HP / 151 kW
Grapple Capacity
14.4 ft² / 1.34 m²
Weight - Dual Function
45249 lb / 20525 kg

Building on Caterpillar's 40+ years' experience designing and manufacturing skidders, the Cat® D Series Wheel Skidder delivers more productivity at lower operating cost. Get more wood to the landing faster in a stable machine with a roomy, comfortable environment for the operator. Advanced hydraulics speed up multi-functioning and cycle times and give you more lift capacity. The D Series runs cool and is designed to keep debris from collecting inside the machine. Tilting cab and other access points cut the time needed for daily maintenance and servicing.

Engine
Gross Power 203 HP / 151 kW
Displacement 428 in³ / 7 l
Bore 4.13 in / 105 mm
Stroke 5.31 in / 135 mm
Maximum Torque at Rated Speed 922 N-m at 1,400 RPM
Derating Altitude 9843 ft / 3000 m
Electrical System 24V
Battery Quantity 2
Battery - Volts 12V
Battery Capacity 950 CCA
Number of Cylinders 6
Engine Model Cat C7.1 ACERT™
Power Train
Travel Speed - Forward 1 3.5 mile/h / 5.6 km/h
Travel Speed - Forward 2 4.7 mile/h / 7.6 km/h
Travel Speed - Forward 3 6.5 mile/h / 10.4 km/h
Travel Speed - Forward 4 8.8 mile/h / 14.1 km/h
Travel Speed - Forward 5 11.8 mile/h / 18.9 km/h
Travel Speed - Reverse 1 3.5 mile/h / 5.6 km/h
Travel Speed - Reverse 2 6.5 mile/h / 10.4 km/h
Travel Speed - Reverse 3 11.8 mile/h / 18.9 km/h
Travel Speed - Forward 6 12.4 mile/h / 20 km/h
Transmission Countershaft Powershift
Transmission Cooler Type Water to Oil
Hydraulic System
Type Load sense, closed center
Pump Type Variable displacement piston pump
Pump Output 58 gal/min / 220 l/min
Dimensions
Overall Width - 30.5L-32 133.3 in / 3386 mm
Overall Width - 35.5L-32 NOAW 139.1 in / 3533 mm
Overall Width - 30.5L-32 2X Ring 126.6 in / 3216 mm
Weight - Cable 41745 lb / 18935 kg
Overall Width - 35.5L-32 145.8 in / 3703 mm
Weight - Dual Function 45249 lb / 20525 kg
Weight - Single Function 44235 lb / 20065 kg
Ground Level to Top Arch/Boom* - Cable 109.6 in / 2785 mm
Ground Level to Top Arch/Boom* - Single Function 145.8 in / 3702 mm
Ground Level to Top Arch/Boom* - Dual Function 162.8 in / 4136 mm
Ground Level to Axle Centerline* 33.2 in / 843 mm
Overall Length - Cable 287.3 in / 7297 mm
Overall Length - Single Function 356.3 in / 9051 mm
Overall Length - Dual Function 327.6 in / 8322 mm
Ground Clearance* 21.7 in / 550 mm
Blade Lift Height* 56.1 in / 1426 mm
Blade Dig Depth* 20.8 in / 529 mm
Height - Top of Cab* 133.3 in / 3386 mm
Blade Width - Standard 105.4 in / 2678 mm
Blade Width - Wide 123.5 in / 3138 mm
Overall Width - 30.5L-32 NOAW 126.6 in / 3216 mm
Wheel Base 143.8 in / 3652 mm
Grapple Dimensions
Grapple Capacity 14.4 ft² / 1.34 m²
Tip to Tip Height 82 in / 2083 mm
Tong Ppening 126.2 in / 3205 mm
Full Open Height 71.3 in / 1811 mm
Minimum Stem Diameter 6.9 in / 176 mm
Full Closed Height 54.4 in / 1382 mm
Lift Chart
Lift Height, Retracted - Single Function 86.9 in / 2208 mm
Lift Lowest, Furthest - Single Function 23.5 in / 596 mm
Ground Level to Axle Centerline* - Single Function 33.2 in / 843 mm
Reach - Highest, Retracted - Single Function 70.3 in / 1786 mm
Reach - Lowest, Furthest - Single Function 105 in / 2668 mm
Ground Level to Axle Centerline* - Dual Function 33.2 in / 843 mm
Lift Height, Furthest - Dual Function 75.9 in / 1928 mm
Lift Height, Retracted - Dual Function 104.4 in / 2652 mm
Lift Lowest, Furthest - Dual Function 11 in / 280 mm
Lift Lowest, Retracted - Dual Function 36.1 in / 918 mm
Reach - Highest, Furthest - Dual Function 114.8 in / 2917 mm
Reach - Highest, Retracted - Dual Function 64.7 in / 1643 mm
Reach - Lowest, Furthest - Dual Function 99.1 in / 2518 mm
Reach - Lowest, Retracted - Dual Function 60.7 in / 1541 mm
Winch - Retrival Winch
Type Hydraulically driven
Maximum Line Speed 134 ft/min / 41 m/min
Drum Capacity - 19.0 mm (3/4 in) 195 ft / 59 m
Drum Capacity - 25.4 mm (1 in) 85 ft / 26 m
Maximum Line Pull - Bare Drum 40016  / 178 kN
Drum Diameter 9 in / 229 mm
Drum Width 10 in / 254 mm
Winch - Logging Winch
Maximum Line Pull - Bare Drum 40016  / 178 kN
Maximum Line Speed 280 ft/min / 85.3 m/min
Drum Capacity - 19.0 mm (3/4 in) 195 ft / 59 m
Drum Capacity - 25.4mm (1 in) 85 ft / 26 m
Type Hydraulically driven
Drum Diameter 9 in / 229 mm
Drum Width 10 in / 254 mm
Service Refill
Fuel Tank 83.2 gal (US) / 315 l
Cooling System 15.1 gal (US) / 57 l
Differential - Final Drives - Front 13.7 gal (US) / 52 l
Differential - Final Drives - Rear 13.7 gal (US) / 52 l
Engine Oil 7.1 gal (US) / 27 l
Transmission - Torque Converter 14.3 gal (US) / 54 l
DEF Tank 5 gal (US) / 19 l
Differential - Final Drives - Tank 17.2 gal (US) / 65 l
Differential - Final Drives - Total 32.5 gal (US) / 123 l
Parking Brake 14.4 oz / 425 ml
Brakes
Service Enclosed wet single disc
Transmission Cooler Type Spring applied, hydraulically released

Standard Equipment

  • Electrical
    • 24V electrical system
    • Alarm, back-up
    • Alternator, 115-amp
    • Batteries, maintenance free (2-1000CCA)
    • Lighting system, halogen (4 total)
    • Main disconnect switch with Diesel Exhaust Fluid (DEF) purge indicator light
    • Starter, electric, heavy duty
    • Starting and charging system
    • Diagnostic connector
  • Operator Environment
    • Cab, enclosed ROPS, FOPS, and OPS certified
    • HVAC system, high performance
    • Seat, High back air suspension with lap seat belt
    • Power port, 12V
    • Converter, 24V to 12V
    • Beverage holder (2)
    • Headliner with dome light
    • Floormat, non permeable and removable
    • Mirror, rear view
    • Computerized Monitoring System
  • Powertrain
    • Engine, Cat C7 with ACERT Technology
    • Fuel priming pump, electric
    • Fuel transfer pump (electric)
    • Fuel filters, inline, primary and secondary
    • Air Precleaner, Turbine
    • Air Cleaner, 2-stage
    • Cooling, cross-flow system with stationary cores and swing out panel
    • Reversing cooling fan, hydraulically driven on demand
    • Transmission, countershaft powershift (6F/3R)
    • Lock-up torque converter
    • Lubed for life driveline slipjoint and universal joints
    • Axles, heavy duty Cat inboard planetary approved for wide tires up to 73-44 with chains
    • Differential locks, independent front and rear
    • Four-wheel enclosed disc service brakes
    • Parking brake, hydraulically released, spring applied
    • Fuel tank, high capacity
  • Hydraulics
    • Load Sense Hydraulics
    • Pumps, variable displacement main and fan
    • Main control valve, high performance and multifuntioning
    • Filter, in-tank return
    • CAT ToughGuard hoses
  • Other standard equipment
    • Access panels, hinged or removable
    • Articulation lock link
    • Center Hitch, dual tapered roller bearing upper and lower
    • Ecology drains (engine oil, engine coolant, hyd tank, axles, transmission)
    • Fuel fill, ground level
    • Frames, heavy duty
    • Limb risers, heavy duty
    • Segregated compartments, engine/CEM and cooling
    • Product Link
    • Single side engine service
    • S·O·SSM sampling ports
    • Tilt Cab
    • Vandalism protection, lockable doors and cap locks

Optional Equipment

  • Arch / Boom
    • Cable
    • Single function
    • Dual Function
  • Winch
    • Retrieval
    • Logging
  • Blade
    • Standard
    • Wide
  • Starting Aids
    • Receptacle, jump start
    • Starting, cold weather
  • Tires
    • 30.5L-32 20PR, NOAW *
    • 30.5L-32 26PR , NOAW*
    • 30.5L-32 20PR , 2X Ring**
    • 30.5L-32 26PR , 2X Ring**
    • 30.5L-32 20PR
    • 30.5L-32 26PR
    • 35.5LB-32 20PR, NOAW*
    • 35.5LB-32 24PR, NOAW*
    • 35.5L-32 20PR
    • 35.5L-32 24PR
    • * NOAW – Narrow Overall Width
    • ** 2X Ring – Inner dual tire rim with integrated dual ring mounting of 24.5L-32 outer tire
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