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Caterpillar 525 Skidder

Introducing the Caterpillar 525 Skidders / Yarders - a powerful and versatile machine designed to handle heavy-duty logging operations with ease. With a range of impressive features and specifications, the Caterpillar 525 is equipped to lift, reach, and maneuver through challenging terrains with precision and efficiency. From its impressive lifting capabilities to its advanced hydraulic system and robust powertrain, the Caterpillar 525 is ready to tackle any logging task with reliability and performance. Explore the detailed specs below to discover the full potential of this exceptional skidder/yarder.


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General Specifications

Arch

Arch Types44.3
Dual Function - Lift Highest, Farthest106 in (269 cm)
Dual Function - Lift Highest, Retracted15 in (38 cm)
Dual Function - Lift Lowest, Farthest44 in (113 cm)
Dual Function - Lift Lowest, Retracted107 in (273 cm)
Dual Function - Lift Maximum Reach72 in (183 cm)
Dual Function - Reach Highest, Farthest49 in (124 cm)
Dual Function - Reach Highest, Retracted105 in (265 cm)
Dual Function - Reach Lowest, Farthest59 in (149 cm)
Dual Function - Reach Lowest, Retracted107 in (273 cm)
Dual Function - Reach Maximum74 in (187 cm)
Single Function - Lift Highest, Retracted99 in (252 cm)

Dimensions

Drum Capacity at Cable Width19,800 ft (6,035 m)
Grapple Capacity - tongs tip to tip10 cu ft (3 cu m)
Height - Top of Cab2 ft (1 m)
Length12 ft (4 m)
Max Blade Height9 in (23 cm)
Max Height of Boom8 ft (3 m)
Max Line Pull - bare drum96 lbs (44 kg)
Max Line Speed5 ft/min (1 m/min)
Overall Length10 ft (3 m)
Overall Width10 ft (3 m)
Wheel Base68 ft (21 m)

Engine

Air Cleaner24 V
Aspiration33510.3
Battery - Volts93 Amp-hr
Battery Capacityblower
Battery Quantity12 V
Bore6 in (15 cm)
Derating Altitude2,200 ft (671 m)
Displacementturbocharged cu in
Electrical System2
Engine Model175
Fan Speedhydraulic actuated oil disc rpm
Fan Type24 V
Governed Speed at Rated Powerdry dual element rpm
Gross Power160 hp (119 kw)
Gross Power - SAE J1995160 hp (119 kw)
Net Flywheel Power7,500 hp (5,593 kw)
Net Power2,200 hp (1,641 kw)
Net Power - EEC 80/1269160 hp (119 kw)
Net Power - ISO 9249158 hp (118 kw)
Net Power - SAE J1349179 hp (133 kw)
Power Measured @425 rpm
Stroke160 in (406 cm)
Torque Measured @70.1 rpm

Grapple

Bunching - Capacity9 cu ft (3 cu m)
Bunching - Full Open Height60 in (153 cm)
Bunching - Fully Closed Height5 in (13 cm)
Bunching - Minimum Stem Diameter89 in (226 cm)
Bunching - Tip to Tip Height120 in (305 cm)
Bunching - Tong Opening62 in (156 cm)
Sorting - Full Open Height72 in (183 cm)
Sorting - Fully Closed Height3 in (8 cm)
Sorting - Minimum Stem Diameter87 in (220 cm)
Sorting - Tip to Tip Height100 in (254 cm)
Sorting - Tong Opening13 in (32 cm)
Sorting Capacity38,200 cu ft (11,644 cu m)

Hydraulic System

Circuit Typedirect link non-follow
Dozer Cylinder - Bore14 in (36 cm)
Dozer Cylinder - Rod Diameter3 or 4 stack pilot in (8 cm)
Dozer Cylinder - Stroke2 in (5 cm)
Dozer Valve4
Grapple Valve45.5
Pump Output13 gpm (49 lpm)
Pump Type3000
Relief Valve Pressure11.5 psi
Relief Valve Settingclosed-cntr var flow
Reservoir Tank Capacity10 gal (39 l)
Steering Cylinder - Bore17 in (43 cm)
Steering Cylinder - Rod Diameterdirect linkage in
Steering Cylinder - Stroke2 in (5 cm)
Steering Valve3

Operating Specifications

Axle Oscillation85.4 degrees
Cooling System Fluid Capacity5 gal (19 l)
Engine Oil Capacity11 gal (42 l)
Front Diff Fluid Capacity11 gal (42 l)
Fuel Capacity10 gal (36 l)
Operating Voltage75 amps
Operating Weight24 V lbs (11 kg)
Rear Diff Fluid Capacity14 gal (53 l)
Steering Angle23.1 - 26 volts
Tire Size7.1
Transmission Fluid Capacity20 gal (74 l)

Power Train

Brakes - Parking Typefully hydraulic control
Brakes - Service Typemechanical shoe
Maximum Drawbar Pull4 lbs (2 kg)
Steering, Frame Articulation43500
Torque Converter Type29891
Transmission Cooler Type4 fwd/3 rev
Travel Speed - Forward 17 mph (10 kph)
Travel Speed - Forward 29 mph (15 kph)
Travel Speed - Forward 316 mph (26 kph)
Travel Speed - Forward 44 mph (6 kph)
Travel Speed - Reverse 17 mph (10 kph)
Travel Speed - Reverse 212 mph (19 kph)
Travel Speed - Reverse 3plate mph

Service Refill

Cooling System18 gal (68 l)
Differential - Final Drives - Front11 gal (42 l)
Differential - Final Drives - Rear14 gal (53 l)
Engine Oil14 gal (53 l)
Fuel Tank11 gal (42 l)
Hydraulic System - Tanksingle/dual/cable gal
Hydraulic System - Total4 gal (15 l)
Mechanical Winch9 gal (34 l)
Transmission - Torque Converter5 gal (19 l)

Transmission

Max Speed - Forward12 mph (19 kph)
Number of Forward Gears3
Number of Reverse Gears16.9
Transmission Type4

Undercarriage

Length of Track on GroundCat 3304 DIT Diesel ft

Weights

Dozer - Extended Width100 lbs (45 kg)
Enclosed Cab1,550 lbs (703 kg)
Est. Operating Weight630 lbs (286 kg)
Grapple - Sorting .84 m2 / 9.0 ft2710 lbs (322 kg)
Open ROPSaxial piston lbs
Tires - 24.5 x 32, 16 PR1,476 lbs (670 kg)
Tires - 30.5L x 32, 16 PR1,630 lbs (739 kg)

Winch - Grapple Skidder

Drum Capacity - 19.0 mm (3/4 in)12 ft (4 m)
Drum Capacity - 25.4mm (1 in)15 degrees
Drum Diameter8 in (20 cm)
Maximum Line Pull - Bare Drum502 lbs (228 kg)
Maximum Line Speed199 ft/min (61 m/min)

  • Caterpillar 525s currently for sale
  • A 1995 Caterpillar 525 From Purple Wave, Inc. for Auction Pricing