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Caterpillar 320D Excavator

The Caterpillar 320D is a hydraulic excavator in Caterpillar's 20-ton class, designed for general earthmoving, trenching, site preparation, and material handling. It is powered by a Caterpillar diesel engine and uses a hydraulic system matched to digging, lifting, and swing operations. The 320D is commonly configured with a standard boom, stick, and bucket, and may be fitted with auxiliary hydraulics for attachments. Typical applications include construction, utility work, road building, and quarry support. The machine is known for its tracked undercarriage, operator cab, and service access designed for routine maintenance and field operation.


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Boom/Stick Excavator Option 1

Max Cutting Height32.70 ft (9.97 m)
Max Digging Depth25.20 ft (7.68 m)
Max Loading Height22.80 ft (6.95 m)
Max Reach Along Ground35.40 ft (10.79 m)
Max Vertical Wall Digging Depth22.90 ft (6.98 m)
Shipping Height of Unit12.30 ft (3.75 m)
Shipping Length of Unit31.00 ft (9.45 m)

Boom/Stick Excavator Option 2

Max Cutting Height31.20 ft (9.51 m)
Max Digging Depth22.10 ft (6.74 m)
Max Loading Height22.80 ft (6.95 m)
Max Reach Along Ground32.40 ft (9.88 m)
Max Vertical Wall Digging Depth19.90 ft (6.07 m)
Shipping Height of Unit10.00 ft (3.05 m)
Shipping Length of Unit31.10 ft (9.48 m)

Boom/Stick Excavator Option 3

Max Cutting Height30.50 ft (9.30 m)
Max Digging Depth20.70 ft (6.31 m)
Max Loading Height20.70 ft (6.31 m)
Max Reach Along Ground31.10 ft (9.48 m)
Max Vertical Wall Digging Depth18.60 ft (5.67 m)
Shipping Length of Unit31.10 ft (9.48 m)

Boom/Stick Excavator Option 4

Max Cutting Height29.30 ft (8.93 m)
Max Digging Depth19.40 ft (5.91 m)
Max Loading Height18.80 ft (5.73 m)
Max Reach Along Ground29.40 ft (8.96 m)
Max Vertical Wall Dig Depth17.60 ft (5.36 m)
Shipping Length of Unit29.70 ft (9.05 m)

Boom/Stick Excavator Option 5

Max Cutting Height43.50 ft (13.26 m)
Max Digging Depth38.60 ft (11.77 m)
Max Loading Height36.60 ft (11.16 m)
Max Reach Along Ground51.20 ft (15.61 m)
Max Vertical Wall Dig Depth37.10 ft (11.31 m)
Shipping Height of Unit10.50 ft (3.20 m)
Shipping Length of Unit41.70 ft (12.71 m)

Bucket

Maximum Bucket Capacity1.60 cu yd (1.22 cu m)
Minimum Bucket Capacity0.60 cu yd (0.46 cu m)
Reference Bucket Capacity1.20 cu yd (0.92 cu m)

Dimensions

Ground Clearance1.50 ft (0.46 m)
Height - Top of Cab9.70 ft (2.96 m)
Length of Track on Ground10.80 ft (3.29 m)
Removal Counterweight Clearance3.40 ft (1.04 m)
Tail Swing Radius9.10 ft (2.77 m)
Width to Outside of Tracks9.20 ft (2.80 m)

Engine

AspirationTurbocharged
Displacement388.80 cu in (6,371.30 cu cm)
Engine Model3066 ATAAC
Net Power140.00 hp (104.40 kw)
Power Measured @1800 rpm

Operating Specifications

Cooling System Fluid Capacity6.70 gal (25.36 l)
Engine Oil Capacity8.00 gal (30.28 l)
Fuel Capacity108.40 gal (410.29 l)
Hydraulic Pump Flow Capacity54.00 gpm (204.39 lpm)
Hydraulic System Fluid Capacity68.70 gal (260.03 l)
Hydraulic System Relief Valve Pressure5076 psi
Operating Weight44,820.00 lbs (20,330.04 kg)
Swing Drive Fluid Capacity2.20 gal (8.33 l)

Swing Mechanism

Swing Speed11.5 rpm

Undercarriage

Drawbar Pull46,311.00 lbs (21,006.34 kg)
Max Travel Speed3.50 mph (5.63 kph)
Shoe Size23.70 in (60.20 cm)
Track Gauge7.30 ft (2.23 m)
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