521B Track Harvester

Product Description

The new B Series track feller bunchers feature smoother hydraulic performance, increased engine HP, a more comfortable operator station and better right side operator visibility. The Cat 521B Series are zero tail swing machines designed for medium to high production clear cut and or select cut on rough terrain. These machines perform in a variety of small through larger tree size applications. 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.

Specifications
Us
Metric
Engine
Gross Power
303 HP
226 kW
Hydraulic System
Pumps (1)
Dedicated variable displacement pump for travel circuit - 200 cc
Pumps (2)
Dedicated variable displacement pump for boom and implement functions - 200 cc
Pumps (3)
Electric hydraulic oil fill pump
Operating Specifications
Maximum Reach - With Head
32.5 ft
9.9 m
Service Refill Capacities
Cooling System
10.8 gal (US)
41 l
Engine Oil
10.3 gal (US)
39 l
Hydraulic System
118 gal (US)
448 l
Swing Drive
2.6 gal (US)
10 l
Fuel Capacity
226 gal (US)
856 l
Weights
Operating Weight - Without Head
59450 lb
26966 kg
Standards
Cab
Cab meets FOPS/OPS/ROPS/WCB/OR-OSHA requirements
Undercarriage
Pitch
8.5 in
215.9 mm
Size
330 EX (D7)
Power Train
Displacement
537 in³
8.8 l
Engine Model
Cat® C9 ACERT™
Gross Power
303 HP
226 kW
Gross Power - 1,800 rpm
303 HP
226 kW
Rated Power - 2,100 rpm
282 HP
210.3 kW
Boom System
Track Harvester Configuration - Lift Over Front of Tracks: Bare Pin Lift at Maximum Reach - Without Head
4000 kg @ 9.8 m (8,800 lb @ 32 ft 5 in)
Track Harvester Configuration - Lift Over Front of Tracks: Maximum Reach - With head
32.5 ft
9.9 m
Operating Weights - Without Heads, Standard Counterweight
Track Harvester Configuration - 521B
59450 lb
26966 kg
Track Gauge
521B
102 in
2591 mm
Track Length
Track Length
191.1 in
4855 mm
Ground Clearance
Ground Clearance
35 in
889 mm
Tractive Effort
521B
70500 lb
31978 kg
Standard/Optional

Standard Equipment

ELECTRICAL
GUARDS
OPERATOR ENVIRONMENT
POWER TRAIN
UNDERCARRIAGE
HYDRAULICS
ANTIFREEZE
OTHER STANDARD EQUIPMENT

Optional Equipment

LINKAGES
HYDRAULICS
TRACK SYSTEMS
OTHER EQUIPMENT
FIELD INSTALLED ATTACHMENTS

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