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.
- Technical Specs
- Standard Equipment
- Optional Equipment
- Gross Power
- 203 hp
- Displacement
- 428 in3
- Bore
- 4.13 in
- Stroke
- 5.31 in
- Max Torque @ Rated Speed
- 922 N-m at 1,400 RPM
- Derating Altitude
- 9843 ft
- Electrical System
- 24V
- Battery - Quantity
- 2
- Battery - Volts
- 12V
- Battery - Capacity
- 950 CCA
- Number of Cylinders
- 6
- Engine Model
- Cat C7.1 ACERT™
- Travel Speed - Fwd. 1st
- 3.5 mph
- Travel Speed - Fwd. 2nd
- 4.7 mph
- Travel Speed - Fwd. 3rd
- 6.5 mph
- Travel Speed - Fwd. 4th
- 8.8 mph
- Travel Speed - Fwd. 5th
- 11.8 mph
- Travel Speed - Rev. 1st
- 3.5 mph
- Travel Speed - Rev. 2nd
- 6.5 mph
- Travel Speed - Rev. 3rd
- 11.8 mph
- Travel Speed - Fwd. 6th
- 12.4 mph
- Transmission
- Countershaft Powershift
- Transmission Cooler Type
- Water to Oil
- Type
- Load sense, closed center
- Pump Type
- Variable displacement piston pump
- Pump Output
- 58 gal/min
- Overall width - 30.5L-32
- 133.3 in
- Overall width - 35.5L-32 NOAW
- 139.1 in
- Overall width - 30.5L-32 2X Ring
- 126.6 in
- Weight - Cable
- 41745 lb
- Overall width - 35.5L-32
- 145.8 in
- Weight - Dual Function
- 45249 lb
- Weight - Single Function
- 44235 lb
- 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 center line*
- 33.2 in
- Overall length - Cable
- 287.3 in
- Overall length - Single Function
- 356.3 in
- Overall length - Dual Function
- 327.6 in
- Ground clearence*
- 21.7 in
- Blade lift height*
- 56.1 in
- Blade dig depth*
- 20.8 in
- Height to 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
- Wheelbase
- 143.8 in
- Grapple capacity
- 14.4 ft2
- Tip to tip height
- 82.0 in
- Tong opening
- 126.2 in
- Full open height
- 71.3 in
- Minimum stem diameter
- 6.9 in
- Full closed height
- 54.4 in
- Lift height, retracted - Single Function
- 86.9 in
- Lift lowest, furthest - Single Function
- 23.5 in
- Ground level to axle center line* - Single Function
- 33.2 in
- Reach highest, retracted - Single Function
- 70.3 in
- Reach lowest, furthest - Single Function
- 105.0 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 - Dual Function
- 11.0 in
- Ground level to axle center line* - Dual Function
- 33.2 in
- Reach highest, retracted - Dual Function
- 64.7 in
- Reach lowest, retracted - Dual Function
- 60.7 in
- Reach lowest, furthest - Dual Function
- 99.1 in
- Reach highest, furthest - Dual Function
- 114.8 in
- Type
- Hydraulically driven
- Max Line Speed
- 134 ft/min
- Drum Capacity 19.0mm (3/4in)
- 195 ft
- Drum Capacity 25.4mm (1in)
- 85 ft
- Max Line Pull - Bare Drum
- 40016 lbf
- Drum Diameter
- 9 in
- Drum Width
- 10 in
- Max Line Pull - Bare Drum
- 40016 lbf
- Max Line Speed
- 280 ft/min
- Drum Capacity 19.0mm (3/4in)
- 195 ft
- Drum Capacity 25.4mm (1 in)
- 85 ft
- Type
- Hydraulically driven
- Drum Diameter
- 9 in
- Drum Width
- 10 in
- Fuel Tank
- 83.2 gal
- Cooling System
- 15.1 gal
- Differential, Final Drive - Front
- 13.7 gal
- Differential, Final Drive - Rear
- 13.7 gal
- Engine Oil
- 7.1 gal
- Transmission, Torque Converter
- 14.3 gal
- DEF Tank
- 5.0 gal
- Differential, Final Drive - Tank
- 17.2 gal
- Differential, Final Drive - Total
- 32.5 gal
- Parking Brake
- 14.4 oz
- Service
- Enclosed wet single disc
- Transmission Cooler Type
- Spring applied, hydraulically released
-
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
-
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