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Caterpillar 551 Feller Buncher

The Caterpillar 551 Feller Buncher is a robust and powerful machine designed for efficiently clearing and harvesting trees. With a maximum reach of 28.3 feet and a bare pin lift capacity of over 11,000 pounds at max reach, this machine is capable of handling large and heavy loads with ease. The Cat C9 ACERT engine provides a gross power of 305 horsepower, ensuring reliable performance in challenging forestry environments. With a range of operating specifications and service refill capacities, this Feller Buncher is designed to tackle tough forestry tasks with precision and efficiency.


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General Specifications

Boom

Bare Pin Lift at Max Reach11,023 lbs (5,000 kg)
Lift Capacity at Max Reach11,023 lbs (5,000 kg)
Max Reach w/ Head37 ft (11 m)

Dimensions

Ground Clearance3 in (8 cm)
Height12 ft (4 m)
Height - Top of Cab12 ft (4 m)
Max Reach28 ft (9 m)
Overall Length31 ft (9 m)
Overall Width11 ft (3 m)
Shipping Length - non tilt45 ft (14 m)
Shipping Length - With Attachment461 in (1,171 cm)
Shipping Length - Without Attachment371 in (942 cm)
Width 1131 in (333 cm)
Width 2142 in (361 cm)

Dimensions - Track Harvester Configuration

Height - Without Attachment144 in (366 cm)
Shipping Length - Without Attachment536 in (1,361 cm)
Width 1 - Without Attachment131 in (333 cm)
Width 2 - Without Attachment142 in (361 cm)

Engine

Displacement537 cu in (8,802 cu cm)
Engine ModelCat C9 ACERT
Gross Power305 hp (227 kw)
Net Power282 hp (210 kw)
Power Measured @2100 rpm
Rated Power282 hp (210 kw)

Hydraulic System

Pump Size - Boom, Implements110 cu in (1,803 cu cm)
Pump Size - Saw Motor30 cu in (492 cu cm)
Pump Size - Travel Circuit110 cu in (1,803 cu cm)

Operating Specifications

Alternator Supplied Amperage95 amps
Bare Pin Lift at Maximum Reach - Without Attachment9400 kg (21800 lb) @ 6.6 m (21.5 ft)
Bare Pin Lift at Maximum Reach - Without Attachment - Long Felling Linkage7400 kg (16300 lb) @ 8.2 m (27 ft)
Bare Pin Lift at Maximum Reach - Without Attachment - Track Harvester Configuration5000 kg (11000 lb) @ 10.7 m (35 ft)
Cooling System Fluid Capacity16 gal (61 l)
Engine Oil Capacity10 gal (39 l)
Fuel Capacity312 gal (1,181 l)
Hydraulic System Fluid Capacity98 gal (370 l)
Maximum Drawbar Pull101,540 lbs (46,058 kg)
Maximum Reach - With Attachment28 ft (9 m)
Maximum Reach - With Attachment - Track Harvester Configuration37 ft (11 m)
Operating Voltage24 volts
Operating Weight69,175 lbs (31,377 kg)
Operating Weight w/o Attachment68,469 lbs (31,057 kg)

Service Refill Capacities

Cooling System16 gal (61 l)
Engine Oil10 gal (39 l)
Fuel Tank312 gal (1,181 l)
Hydraulic System98 gal (370 l)
Hydraulic Tank85 gal (323 l)
Swing Drive3 gal (10 l)

Track

Ground Clearance35 in (89 cm)
Number of Rollers9 per side
Track Length193 in (490 cm)
Tractive Effort104,000 lbs (47,174 kg)
Undercarriage Pitch9 in (22 cm)
Undercarriage Size345 HEX

Undercarriage

Shoe Size28 in (71 cm)
Track Gauge9 ft (3 m)
Track Length16 ft (5 m)
Track Pitch9 in (22 cm)
Tractive Effort104,001 lbs (47,174 kg)

Weights

Operating Weight - With Attachment - Track Harvester Configuration - Long Felling Linkage79,339 lbs (35,988 kg)
Operating Weight - Without Attachment68,468 lbs (31,057 kg)
Operating Weight - Without Attachment - Track Harvester Configuration69,175 lbs (31,377 kg)