The Caterpillar 320B L is a hydraulic excavator in Caterpillar's 320 series, designed for general earthmoving, trenching, site preparation, and material handling. The "L" designation typically indicates a long undercarriage configuration, providing improved stability and ground contact for digging and lifting applications. The 320B L is commonly used in construction, utility work, and excavation projects where balanced digging performance and machine stability are required. It features a crawler undercarriage, hydraulic boom and stick system, and a cab layout intended for operator control and visibility. The model is part of Caterpillar's B-series excavator line.
Boom/Stick 1
Caterpillar 320B L Excavator Boom/Stick 1 specifications
Boom/Stick 1
Boom 18\'7\" (5680mm) / Stick 12\'8\" (3900mm)
Max Cutting Height
31.99 ft (9.75 m)
Max Digging Depth
24.87 ft (7.58 m)
Max Loading Height
22.74 ft (6.93 m)
Max Reach Along Ground
34.88 ft (10.63 m)
Max Vertical Wall Digging Depth
22.35 ft (6.81 m)
Shipping Height Of Unit
11.26 ft (3.43 m)
Shipping Length Of Unit
30.91 ft (9.42 m)
Boom/Stick 2
Caterpillar 320B L Excavator Boom/Stick 2 specifications
Boom/Stick 2
Boom 18\'7\" (5680mm) / Stick 9\'7\" (2900mm)
Max Cutting Height
31.07 ft (9.47 m)
Max Digging Depth
21.79 ft (6.64 m)
Max Loading Height
21.56 ft (6.57 m)
Max Reach Along Ground
32.09 ft (9.78 m)
Max Vertical Wall Digging Depth
19.82 ft (6.04 m)
Shipping Height Of Unit
9.62 ft (2.93 m)
Shipping Length Of Unit
30.98 ft (9.44 m)
Boom/Stick 3
Caterpillar 320B L Excavator Boom/Stick 3 specifications
Boom/Stick 3
Boom 18\'7\" (5680mm) / Stick 8\'2\" (2500mm)
Max Cutting Height
30.06 ft (9.16 m)
Max Digging Depth
20.18 ft (6.15 m)
Max Loading Height
21.20 ft (6.46 m)
Max Reach Along Ground
30.55 ft (9.31 m)
Max Vertical Wall Digging Depth
17.49 ft (5.33 m)
Shipping Height Of Unit
9.88 ft (3.01 m)
Shipping Length Of Unit
31.04 ft (9.46 m)
Boom/Stick 4
Caterpillar 320B L Excavator Boom/Stick 4 specifications
Boom/Stick 4
Boom 18\'7\" (5680mm) / Stick 6\'3\" (1900mm)
Max Cutting Height
28.81 ft (8.78 m)
Max Digging Depth
18.48 ft (5.63 m)
Max Loading Height
19.56 ft (5.96 m)
Max Reach Along Ground
28.75 ft (8.76 m)
Max Vertical Wall Dig Depth
15.36 ft (4.68 m)
Shipping Height Of Unit
10.01 ft (3.05 m)
Shipping Length Of Unit
31.14 ft (9.49 m)
Boom/Stick 5
Caterpillar 320B L Excavator Boom/Stick 5 specifications
Boom/Stick 5
Mass Boom 17\'1\" (5200mm) / Stick 7\'10\" (2400mm)
Max Cutting Height
28.78 ft (8.77 m)
Max Digging Depth
18.71 ft (5.70 m)
Max Loading Height
19.43 ft (5.92 m)
Max Reach Along Ground
28.75 ft (8.76 m)
Max Vertical Wall Dig Depth
16.11 ft (4.91 m)
Shipping Height Of Unit
10.01 ft (3.05 m)
Shipping Length Of Unit
29.53 ft (9.00 m)
Buckets
Caterpillar 320B L Excavator Buckets specifications
Maximum Bucket Capacity
2 cu yd
Minimum Bucket Capacity
0.5 cu yd
Reference Bucket Capacity
1.2 cu yd
Dimensions
Caterpillar 320B L Excavator Dimensions specifications
Ground Clearance
1.56 ft (0.48 m)
Height
11.25 ft (3.43 m)
Height To Top Of Cab
9.65 ft (2.94 m)
Length
31.00 ft (9.45 m)
Length Of Track On Ground
11.98 ft (3.65 m)
Removal Counterweight Clearance
3.43 ft (1.05 m)
Tail Swing Radius
9.03 ft (2.75 m)
Weight
46,000.00 lbs (20,865.27 kg)
Width
10.42 ft (3.18 m)
Width To Outside Of Tracks
10.44 ft (3.18 m)
Drive
Caterpillar 320B L Excavator Drive specifications
Maximum Drawbar Pull
39,800.00 lbs (18,053.00 kg)
Maximum Travel Speed
3.40 mph (5.47 kph)
Engine
Caterpillar 320B L Excavator Engine specifications
Aspiration
Turbocharged
Bore
4.10 in (10.41 cm)
Displacement
389.00 cu in (6,374.58 cu cm)
Engine Make
2236
Engine Model
3066T
Gross Power
134.00 hp (99.93 kw)
Net Flywheel Power
128.00 hp (95.45 kw)
Net Power
128.00 hp (95.45 kw)
Net Power - Eec 80/1269
128.00 hp (95.45 kw)
Net Power - Iso 9249
128.00 hp (95.45 kw)
Net Power - Sae J1349
128.00 hp (95.45 kw)
Number Of Cylinders
6
Power Measured @
1800 rpm
Stroke
5.20 in (13.21 cm)
Hydraulic System
Caterpillar 320B L Excavator Hydraulic System specifications
B1 Family Bucket Cylinder - Bore
5.00 in (12.70 cm)
B1 Family Bucket Cylinder - Stroke
41.00 in (104.14 cm)
Boom Cylinder - Bore
5.00 in (12.70 cm)
Boom Cylinder - Stroke
50.00 in (127.00 cm)
C Family Bucket Cylinder - Bore
5.10 in (12.95 cm)
C Family Bucket Cylinder - Stroke
46.00 in (116.84 cm)
Main Implement System - Maximum Flow (2x)
48.90 gpm (185.09 lpm)
Maximum Pressure - Equipment
4980 psi
Maximum Pressure - Swing
3340 psi
Maximum Pressure - Travel
4980 psi
Pilot System - Maximum Flow
10.80 gpm (40.88 lpm)
Pilot System - Maximum Pressure
600 psi
Operational
Caterpillar 320B L Excavator Operational specifications
Alternator Supplied Amperage
50 amps
Cooling System Fluid Capacity
6.70 gal (25.36 l)
Engine Oil Capacity
5.50 gal (20.82 l)
Fuel Capacity
89.90 gal (340.27 l)
Hydraulic Pump Flow Capacity
97.80 gpm (370.17 lpm)
Hydraulic System Fluid Capacity
58.20 gal (220.29 l)
Hydraulic System Relief Valve Pressure
4980 psi
Operating Voltage
24 V
Operating Weight
42,769.70 lbs (19,400.03 kg)
Swing Drive Fluid Capacity
1.60 gal (6.06 l)
Service Refill Capacities
Caterpillar 320B L Excavator Service Refill Capacities specifications
Cooling System
6.60 gal (24.98 l)
Engine Oil
5.10 gal (19.30 l)
Final Drive - Each
2.60 gal (9.84 l)
Fuel Tank Capacity
90.00 gal (340.65 l)
Hydraulic System - Including Tank
58.00 gal (219.53 l)
Swing Drive
1.60 gal (6.06 l)
Swing Mechanism
Caterpillar 320B L Excavator Swing Mechanism specifications
Swing Torque
42,050.00 lbs ft (57,011.39 nm)
Undercarriage
Caterpillar 320B L Excavator Undercarriage specifications
Drawbar Pull
39,800.00 lbs (18,053.00 kg)
Max Travel Speed
3.42 mph (5.50 kph)
Shoe Size
31.50 in (80.01 cm)
Track Gauge
7.81 ft (2.38 m)
Weights
Caterpillar 320B L Excavator Weights specifications
Operating Weight - Standard Undercarriage
45,459.30 lbs (20,620.02 kg)
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