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521 Track Feller Buncher

Product Description

A robust undercarriage utilizes proven components, customized for demanding forestry conditions. The unique boom design provides industry leading lift capacity throughout full reach range, a benefit in large timber. Four models are available with just the right horsepower, track size and hydraulic configurations to fit your application needs.

Specifications
Us
Metric
Engine
Gross Power
284 hp
211.8 kW
Engine Model
Cat® C9 ACERT™
Rated Power
263 hp
196.1 kW
Displacement
537 in³
8.8 l
Operating Specifications
Maximum Reach - With Attachment
26.6 ft
8.1 m
Maximum Reach - With Attachment - Track Harvester Configuration
32 ft
9.8 m
Bare Pin Lift at Maximum Reach - Without Attachment
7100 kg (15600 lb) @ 6.1 m (20 ft)
Bare Pin Lift at Maximum Reach - Without Attachment - Track Harvester Configuration
4100 kg (9100 lb) @ 9 m (29.5 ft)
Track
Undercarriage Size
D6H HD
Undercarriage Pitch
8 in
203.2 mm
Track Gauge
102 in
2591 mm
Track Length
189 in
4801 mm
Ground Clearance
33 in
838 mm
Tractive Effort
70500 lb
31978 kg
Hydraulic System
Pump Size - Travel Circuit
12.2 in³
200 cm³
Pump Size - Boom, Implements
11.59 in³
190 cm³
Pump Size - Saw Motor
3.36 in³
55 cm³
Service Refill Capacities
Fuel Tank
140 gal (US)
530 l
Pony Fuel Tank - Optional
90 gal (US)
341 l
Cooling System
16.1 gal (US)
61 l
Engine Oil
10.3 gal (US)
39 l
Hydraulic Tank
69.2 gal (US)
262 l
Hydraulic System
79.3 gal (US)
300 l
Swing Drive
2.6 gal (US)
10 l
Weights
Operating Weight - Without Attachment
59710 lb
27084 kg
Operating Weight - Without Attachment - Track Harvester Configuration
57440 lb
26050 kg
Dimensions
Shipping Length - With Attachment
431 in
10947 mm
Shipping Length - Without Attachment
340 in
8636 mm
Height
140 in
3556 mm
Width - Minimum
126 in
3200 mm
Dimensions - Track Harvester Configuration
Width - Minimum - Without Attachment
126 in
3200 mm
Height - Without Attachment
140 in
3556 mm
Shipping Length - Without Attachment
453 in
11506 mm
Standard/Optional

Standard Equipment

Electrical
Guards
Operator Environment
Powertrain
Undercariage
Other Standard Equipment
Hydraulics
Antifreeze

Optional Equipment

Track Systems
Other Equipment
Field Installed Attachments
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Available Used

CAT 521B
Serial Number F7B00420
CAT 521B
Serial Number F7B00418
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