Caterpillar 551 Feller Buncher

Boom

Bare Pin Lift at Max Reach 11,023 lbs (5,000 kg)

Dimensions

Ground Clearance 3 in (8 cm)
Height 12 ft (4 m)
Height – Top of Cab 12 ft (4 m)
Max Reach 28 ft (9 m)
Overall Length 31 ft (9 m)
Overall Width 11 ft (3 m)
Shipping Length – With Attachment 461 in (1,171 cm)
Shipping Length – Without Attachment 371 in (942 cm)
Width 1 131 in (333 cm)
Width 2 142 in (361 cm)

Dimensions – Track Harvester Configuration

Height – Without Attachment 144 in (366 cm)
Shipping Length – Without Attachment 536 in (1,361 cm)
Width 1 – Without Attachment 131 in (333 cm)
Width 2 – Without Attachment 142 in (361 cm)

Engine

Displacement 537 cu in (8,802 cu cm)
Engine Model Cat C9 ACERT
Gross Power 305 hp (227 kw)
Net Power 282 hp (210 kw)
Power Measured @ 2100 rpm
Rated Power 282 hp (210 kw)

Hydraulic System

Pump Size – Boom, Implements 110 cu in (1,803 cu cm)
Pump Size – Saw Motor 30 cu in (492 cu cm)
Pump Size – Travel Circuit 110 cu in (1,803 cu cm)

Operating Specifications

Alternator Supplied Amperage 95 amps
Bare Pin Lift at Maximum Reach – Without Attachment 9400 kg (21,800 lb) @ 6.6 m (21.5 ft)
Bare Pin Lift at Maximum Reach – Without Attachment – Long Felling Linkage 7400 kg (16,300 lb) @ 8.2 m (27 ft)
Bare Pin Lift at Maximum Reach – Without Attachment – Track Harvester Configuration 5000 kg (11,000 lb) @ 10.7 m (35 ft)
Cooling System Fluid Capacity 16 gal (61 l)
Engine Oil Capacity 10 gal (39 l)
Fuel Capacity 312 gal (1,181 l)
Hydraulic System Fluid Capacity 98 gal (370 l)
Maximum Drawbar Pull 101,540 lbs (46,058 kg)
Maximum Reach – With Attachment 28 ft (9 m)
Maximum Reach – With Attachment – Track Harvester Configuration 37 ft (11 m)
Operating Voltage 24 volts
Operating Weight w/o Attachment 68,469 lbs (31,057 kg)

Service Refill Capacities

Cooling System 16 gal (61 l)
Engine Oil 10 gal (39 l)
Fuel Tank 312 gal (1,181 l)
Hydraulic System 98 gal (370 l)
Hydraulic Tank 85 gal (323 l)
Swing Drive 3 gal (10 l)

Track

Ground Clearance 35 in (89 cm)
Number of Rollers 9 per side
Track Length 193 in (490 cm)
Tractive Effort 104,000 lbs (47,174 kg)
Undercarriage Pitch 9 in (22 cm)
Undercarriage Size 345 HEX

Undercarriage

Shoe Size 28 in (71 cm)
Track Gauge 9 ft (3 m)
Track Pitch 9 in (22 cm)
Tractive Effort 104,001 lbs (47,174 kg)

Weights

Operating Weight – With Attachment – Track Harvester Configuration – Long Felling Linkage 79,339 lbs (35,988 kg)
Operating Weight – Without Attachment 68,468 lbs (31,057 kg)
Operating Weight – Without Attachment – Track Harvester Configuration 69,175 lbs (31,377 kg)
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