525D Wheel Skidder

525D Wheel Skidder

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.

Benefits & Features

Product Specs

Engine

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

Dimensions

Weight - Dual Function
45249lb
Overall width - 30.5L-32
133.3in
Overall width - 35.5L-32 NOAW
139.1in
Weight - Cable
41745lb
Overall width - 35.5L-32
145.8in
Weight - Single Function
44235lb
Weight - Dual Function
45249lb
Ground level to top arch/boom* - Single Function
145.8in
Ground level to top arch/boom* - Dual Function
162.8in
Ground level to axle center line*
33.2in
Wheelbase
143.8in
Overall length - Cable
287.3in
Overall length - Single Function
356.3in
Overall length - Dual Function
327.6in
Ground clearence*
21.7in
Blade lift height*
56.1in
Blade dig depth*
20.8in
Height to top of cab*
133.3in
Blade width - Standard
105.4in
Blade width - Wide
123.5in
Overall width - 30.5L-32 NOAW
126.6in
Wheelbase
143.8in
Overall width - 30.5L-32 2X Ring
126.6in
Ground level to top arch/boom* - Cable
109.6in

Service Refill

Fuel Tank
83.2gal
Cooling System
15.1gal
Differential, Final Drive - Front
13.7gal
Differential, Final Drive - Rear
13.7gal
Engine Oil
7.1gal
Transmission, Torque Converter
14.3gal
DEF Tank
5.0gal
Differential, Final Drive - Tank
17.2gal
Differential, Final Drive - Total
32.5gal
Parking Brake
14.4oz

Power Train

Travel Speed - Fwd. 1st
3.5mph
Travel Speed - Fwd. 2nd
4.7mph
Travel Speed - Fwd. 3rd
6.5mph
Travel Speed - Fwd. 4th
8.8mph
Travel Speed - Fwd. 5th
11.8mph
Travel Speed - Rev. 1st
3.5mph
Travel Speed - Rev. 2nd
6.5mph
Travel Speed - Rev. 3rd
11.8mph
Travel Speed - Fwd. 6th
12.4mph
Transmission
Countershaft Powershift
Transmission Cooler Type
Water to Oil

Hydraulic System

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

Lift Chart

Lift height, retracted - Single Function
86.9in
Lift lowest, furthest - Single Function
23.5in
Ground level to axle center line* - Single Function
33.2in
Reach highest, retracted - Single Function
70.3in
Reach lowest, furthest - Single Function
105.0in
Lift height, retracted - Dual Function
104.4in
Lift height, furthest - Dual Function
75.9in
Lift lowest, retracted - Dual Function
36.1in
Lift lowest, furthest - Dual Function
11.0in
Ground level to axle center line* - Dual Function
33.2in
Reach highest, retracted - Dual Function
64.7in
Reach lowest, retracted - Dual Function
60.7in
Reach lowest, furthest - Dual Function
99.1in
Reach highest, furthest - Dual Function
114.8in

Grapple Dimensions

Grapple capacity
14.4ft2
Tip to tip height
82.0in
Tong opening
126.2in
Full open height
71.3in
Minimum stem diameter
6.9in
Full closed height
54.4in

Winch - Retrival Winch

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

Winch - Logging Winch

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

Brakes

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

Worktool Attachments

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
    • Array
  • Powertrain
    • Array
    • Fuel priming pump, electric
    • Fuel transfer pump (electric)
    • Fuel filters, inline, primary and secondary
    • Air Precleaner, Turbine
    • Air Cleaner, 2-stage
    • Array
    • 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
  • Fenders, heavy duty
  • Winch
    • Retrieval
    • Logging
  • Blade
    • Standard
    • Wide
  • Starting Aids
    • Receptacle, jump start
    • Starting, cold weather
  • Lights, LED working (additional 8 lights)
  • Screens, window & wiper protection
  • Wipers, front and rear
  • Water tank
  • Steering, secondary
  • 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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1 (800) 845-9188

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