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525D Wheel Skidder

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.

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SPECIFICATION SUMMARY
  • Gross Power 203 hp
  • Fuel Tank 83.2 gal
  • Displacement 428 in3
  • Bore 4.13 in

PRICE (USD)
Call 800-637-5000 for rate information

Engine

  • Gross Power
    203 hp
  • Displacement
    428 in3
  • Bore
    4.13 in
  • Stroke
    5.31 in
  • Derating Altitude
    9843 ft
  • Number of Cylinders
    6
  • Engine Model
    Cat C7.1 ACERT™
  • Maximum Torque at Rated Speed
    922 N-m at 1,400 RPM
  • Electrical System
    24V
  • Battery Quantity
    2
  • Battery - Volts
    12V
  • Battery Capacity
    950 CCA
  • Gross Power
    203 HP
  • Displacement
    428 in³
  • Bore
    4.13 in
  • Stroke
    5.31 in
  • Derating Altitude
    9843 ft
  • Number of Cylinders
    6
  • Engine Model
    Cat C7.1 ACERT™

Service Refill

  • Fuel Tank
    83.2 gal
  • Cooling System
    15.1 gal
  • Engine Oil
    7.1 gal
  • DEF Tank
    5.0 gal
  • Transmission - Torque Converter
    14.3 gal (US)
  • Parking Brake
    14.4 oz
  • Differential - Final Drives - Front
    13.7 gal (US)
  • Differential - Final Drives - Rear
    13.7 gal (US)
  • Differential - Final Drives - Tank
    17.2 gal (US)
  • Differential - Final Drives - Total
    32.5 gal (US)
  • Fuel Tank
    83.2 gal (US)
  • Cooling System
    15.1 gal (US)
  • Engine Oil
    7.1 gal (US)
  • DEF Tank
    5 gal (US)

Power Train

  • Transmission
    Countershaft Powershift
  • Transmission Cooler Type
    Water to Oil
  • Travel Speed - Forward 1
    3.5 mile/h
  • Travel Speed - Forward 2
    4.7 mile/h
  • Travel Speed - Forward 3
    6.5 mile/h
  • Travel Speed - Forward 4
    8.8 mile/h
  • Travel Speed - Forward 5
    11.8 mile/h
  • Travel Speed - Forward 6
    12.4 mile/h
  • Travel Speed - Reverse 1
    3.5 mile/h
  • Travel Speed - Reverse 2
    6.5 mile/h
  • Travel Speed - Reverse 3
    11.8 mile/h
  • Transmission
    Countershaft Powershift

Hydraulic System

  • Type
    Load sense, closed center
  • Pump Type
    Variable displacement piston pump
  • Pump Output
    58 gal/min
  • Type
    Load sense, closed center
  • Pump Type
    Variable displacement piston pump
  • Pump Output
    58 gal/min

Dimensions

  • Ground clearence*
    21.7 in
  • Wheelbase
    143.8 in
  • Ground Level to Top Arch/Boom* - Cable
    109.6 in
  • Ground Level to Top Arch/Boom* - Single Function
    145.8 in
  • Ground Level to Top Arch/Boom* - Dual Function
    162.8 in
  • Ground Level to Axle Centerline*
    33.2 in
  • Overall Length - Cable
    287.3 in
  • Overall Length - Single Function
    356.3 in
  • Overall Length - Dual Function
    327.6 in
  • Blade Lift Height*
    56.1 in
  • Blade Dig Depth*
    20.8 in
  • Height - Top of Cab*
    133.3 in
  • Blade Width - Standard
    105.4 in
  • Blade Width - Wide
    123.5 in
  • Overall Width - 30.5L-32 NOAW
    126.6 in
  • Overall Width - 30.5L-32 2X Ring
    126.6 in
  • Overall Width - 30.5L-32
    133.3 in
  • Overall Width - 35.5L-32 NOAW
    139.1 in
  • Overall Width - 35.5L-32
    145.8 in
  • Weight - Cable
    41745 lb
  • Weight - Single Function
    44235 lb
  • Weight - Dual Function
    45249 lb
  • Ground Clearance*
    21.7 in
  • Wheel Base
    143.8 in

Brakes

  • Service
    Enclosed wet single disc
  • Transmission Cooler Type
    Spring applied, hydraulically released
  • Service
    Enclosed wet single disc

Winch - Retrival Winch

  • Type
    Hydraulically driven
  • Maximum Line Pull - Bare Drum
    40016 lbf
  • Maximum Line Speed
    134 ft/min
  • Drum Diameter
    9 in
  • Drum Width
    10 in
  • Drum Capacity - 19.0 mm (3/4 in)
    195 ft
  • Drum Capacity - 25.4 mm (1 in)
    85 ft

Winch - Logging Winch

  • Type
    Hydraulically driven
  • Maximum Line Pull - Bare Drum
    40016 lbf
  • Maximum Line Speed
    280 ft/min
  • Drum Diameter
    9 in
  • Drum Width
    10 in
  • Drum Capacity - 19.0 mm (3/4 in)
    195 ft
  • Drum Capacity - 25.4mm (1 in)
    85 ft

Lift Chart

  • Lift Height, Retracted - Single Function
    86.9 in
  • Lift Height, Retracted - Dual Function
    104.4 in
  • Lift Height, Furthest - Dual Function
    75.9 in
  • Lift Lowest, Retracted - Dual Function
    36.1 in
  • Lift Lowest, Furthest - Single Function
    23.5 in
  • Lift Lowest, Furthest - Dual Function
    11 in
  • Ground Level to Axle Centerline* - Single Function
    33.2 in
  • Ground Level to Axle Centerline* - Dual Function
    33.2 in
  • Reach - Highest, Retracted - Single Function
    70.3 in
  • Reach - Highest, Retracted - Dual Function
    64.7 in
  • Reach - Lowest, Retracted - Dual Function
    60.7 in
  • Reach - Lowest, Furthest - Single Function
    105 in
  • Reach - Lowest, Furthest - Dual Function
    99.1 in
  • Reach - Highest, Furthest - Dual Function
    114.8 in

Grapple Dimensions

  • Grapple Capacity
    14.4 ft²
  • Tip to Tip Height
    82 in
  • Tong Ppening
    126.2 in
  • Full Open Height
    71.3 in
  • Minimum Stem Diameter
    6.9 in
  • Full Closed Height
    54.4 in

Cooling System

Power Train

Hydraulics

Structures

Winches

Operator Station

Serviceability

Integrated Technologies

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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