Categories ↠ Skidders / Yarders ↠ Caterpillar 525B

Caterpillar 525B Skidder

Category: Skidders / Yarders ➔
Manufacturer: Caterpillar ➔
Model: 525B ➔

Introducing the Caterpillar 525B Skidder/Yarder, a versatile and powerful machine designed for handling heavy-duty logging operations. With its impressive lifting and reaching capabilities, the 525B offers unmatched efficiency and productivity in challenging forestry environments. Equipped with a robust hydraulic system and a durable powertrain, this skidder/yarder is engineered to tackle tough tasks with ease. Explore the detailed specifications below to discover the superior performance and reliability that the Caterpillar 525B brings to the forestry industry.

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General Specifications

Arch

Arch Types	45.3
Dual Function - Lift Highest, Farthest	106 in (269 cm)
Dual Function - Lift Highest, Retracted	107 in (273 cm)
Dual Function - Lift Lowest, Farthest	44 in (113 cm)
Dual Function - Lift Lowest, Retracted	105 in (265 cm)
Dual Function - Lift Maximum Reach	72 in (183 cm)
Dual Function - Reach Highest, Farthest	49 in (124 cm)
Dual Function - Reach Highest, Retracted	107 in (273 cm)
Dual Function - Reach Lowest, Farthest	59 in (149 cm)
Dual Function - Reach Lowest, Retracted	110 in (280 cm)
Dual Function - Reach Maximum	74 in (187 cm)
Single Function - Lift Highest, Retracted	99 in (252 cm)

Dimensions

Cable Width	148 in (375 cm)
Drum Capacity at Cable Width	39,342 ft (11,991 m)
Grapple Capacity - tongs tip to tip	10 cu ft (3 cu m)
Height	6 ft (2 m)
Height - Top of Cab	2 ft (0 m)
Length	12 ft (4 m)
Max Blade Height	9 in (23 cm)
Max Height of Boom	9 ft (3 m)
Max Line Pull - bare drum	340 lbs (154 kg)
Max Line Speed	4 ft/min (1 m/min)
Overall Length	11 ft (3 m)
Overall Width	11 ft (3 m)
Wheel Base	83 ft (25 m)
Wheelbase	10 ft (3 m)

Engine

Air Cleaner	24 V
Aspiration	35800
Battery - Volts	950 CCA
Battery Capacity	blower
Battery Quantity	12 V
Bore	5 in (13 cm)
Derating Altitude	2,200 ft (671 m)
Electrical System	2
Engine Model	180
Fan Speed	hydraulic wet disc rpm
Fan Type	direct electric
Governed Speed at Rated Power	dry centrifugal precleaner rpm
Gross Power	160 hp (119 kw)
Maximum Torque at Rated Speed	1909
Net Flywheel Power	10,663 hp (7,952 kw)
Net Power - EEC 80/1269	160 hp (119 kw)
Net Power - ISO 9249	160 hp (119 kw)
Net Power - SAE J1349	180 hp (134 kw)
Power Measured @	441.8 rpm
Starting System	779.1 @ 1400 Nm
Stroke	160 in (406 cm)
Torque Measured @	83.2 rpm

Grapple

Bunching - Capacity	9 cu ft (3 cu m)
Bunching - Full Open Height	60 in (153 cm)
Bunching - Fully Closed Height	5 in (13 cm)
Bunching - Minimum Stem Diameter	89 in (226 cm)
Bunching - Tip to Tip Height	120 in (305 cm)
Bunching - Tong Opening	62 in (156 cm)
Sorting - Full Open Height	72 in (183 cm)
Sorting - Fully Closed Height	3 in (8 cm)
Sorting - Minimum Stem Diameter	87 in (220 cm)
Sorting - Tip to Tip Height	100 in (254 cm)
Sorting - Tong Opening	13 in (32 cm)
Sorting Capacity	39,300 cu ft (11,979 cu m)

Hydraulic System

Circuit Type	direct link non-follow
Dozer Cylinder - Bore	18 in (47 cm)
Dozer Cylinder - Rod Diameter	3or4 stack pilot control in (8 cm)
Dozer Cylinder - Stroke	2 in (6 cm)
Dozer Valve	4
Grapple Valve	50
Pump Output	17 gpm (62 lpm)
Pump Type	3045
Relief Valve Pressure	11.6 psi
Relief Valve Setting	closed cntr load sensing psi
Reservoir Tank Capacity	11 gal (40 l)
Steering Cylinder - Bore	17 in (43 cm)
Steering Cylinder - Rod Diameter	direct linkage control in
Steering Cylinder - Stroke	2 in (5 cm)
Steering Valve	3

Operating Specifications

Axle Oscillation	85.4 degrees
Cooling System Fluid Capacity	7 gal (27 l)
Engine Oil Capacity	14 gal (52 l)
Front Diff Fluid Capacity	14 gal (52 l)
Fuel Capacity	13 gal (50 l)
Rear Diff Fluid Capacity	14 gal (54 l)
Steering Angle	30.5 volts
Tire Size	8.8
Transmission Fluid Capacity	33 gal (123 l)

Power Train

Brakes - Parking Type	hydraulic control
Brakes - Service Type	drum
Maximum Drawbar Pull	4 lbs (2 kg)
Steering, Frame Articulation	38730
Torque Converter Type	35800
Transmission	17.1
Transmission Cooler Location	sngl stg rotating housing
Transmission Cooler Type	Countershaft 5fwd/3rev
Travel Speed - Forward 1	6 mph (9 kph)
Travel Speed - Forward 2	7 mph (11 kph)
Travel Speed - Forward 3	10 mph (15 kph)
Travel Speed - Forward 4	4 mph (6 kph)
Travel Speed - Forward 5	3308 Lock-up
Travel Speed - Reverse 1	7 mph (10 kph)
Travel Speed - Reverse 2	12 mph (19 kph)
Travel Speed - Reverse 3	Plate mph

Service Refill

Cooling System	33 gal (123 l)
Differential - Final Drives - Front	14 gal (52 l)
Differential - Final Drives - Rear	14 gal (54 l)
Engine Oil	17 gal (62 l)
Fuel Tank	14 gal (52 l)
Hydraulic System - Total	7 gal (27 l)
Mechanical Winch	13 gal (50 l)
Transmission - Torque Converter	7 gal (25 l)

Transmission

Max Speed - Forward	12 mph (19 kph)
Number of Forward Gears	3
Number of Reverse Gears	17.1
Transmission Type	5

Undercarriage

Ground Contact Area	Axial Piston cu in
Length of Track on Ground	Cat 3126 DITA diesel ft

Weights

Open ROPS

axial piston lbs

Winch - Grapple Skidder

Drum Capacity - 19.0 mm (3/4 in)	10 ft (3 m)
Drum Capacity - 22.2 mm (7/8 in)	82 ft (25 m)
Drum Diameter	7 in (17 cm)
Drum Width	106 in (269 cm)
Maximum Line Pull - Bare Drum	340 lbs (154 kg)
Maximum Line Speed	148 ft/min (45 m/min)

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