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Caterpillar 345B L II Excavator Specs

The Caterpillar 345B L II is a large hydraulic excavator in Caterpillar's 345B series, designed for heavy-duty earthmoving, mass excavation, and site development work. It features a long undercarriage for improved stability and a large-capacity boom and stick configuration suited to demanding digging and loading applications. Commonly used in mining, quarrying, road construction, and large-scale civil projects, the 345B L II is known for its high breakout force, strong lifting capability, and durable construction. As an excavator, it is typically configured with a bucket and can also support various attachments for specialized material handling tasks.


Boom/Stick 1

Caterpillar 345B L II Excavator Boom/Stick 1 specifications
Boom/Stick 1 Boom 10500mm / Stick 6000mm
Max Cutting Height 47.41 ft (14.45 m)
Max Digging Depth 40.10 ft (12.22 m)
Max Loading Height 38.16 ft (11.63 m)
Max Reach Along Ground 57.75 ft (17.60 m)
Shipping Height Of Unit 18.38 ft (5.60 m)
Shipping Length Of Unit 48.99 ft (14.93 m)

Boom/Stick 2

Caterpillar 345B L II Excavator Boom/Stick 2 specifications
Boom/Stick 2 Boom 11500mm / Stick 8250mm
Max Cutting Height 54.04 ft (16.47 m)
Max Digging Depth 43.80 ft (13.35 m)
Max Loading Height 45.31 ft (13.81 m)
Max Reach Along Ground 64.51 ft (19.66 m)
Shipping Height Of Unit 12.31 ft (3.75 m)
Shipping Length Of Unit 53.32 ft (16.25 m)

Buckets

Caterpillar 345B L II Excavator Buckets specifications
Maximum Bucket Capacity 2.3 cu yd
Minimum Bucket Capacity 1.8 cu yd
Reference Bucket Capacity 2.3 cu yd

Dimensions

Caterpillar 345B L II Excavator Dimensions specifications
Ground Clearance 2.33 ft (0.71 m)
Height 12.67 ft (3.86 m)
Height To Top Of Cab 12.01 ft (3.66 m)
Length 38.67 ft (11.79 m)
Length Of Track On Ground 14.24 ft (4.34 m)
Removal Counterweight Clearance 4.89 ft (1.49 m)
Tail Swing Radius 11.98 ft (3.65 m)
Weight 107,966.00 lbs (48,972.61 kg)
Width 11.92 ft (3.63 m)
Width To Outside Of Tracks 14.18 ft (4.32 m)

Drive

Caterpillar 345B L II Excavator Drive specifications
Maximum Drawbar Pull - Long Undercarriage 74,412.00 lbs (33,752.76 kg)
Maximum Travel Speed 2.80 mph (4.51 kph)

Engine

Caterpillar 345B L II Excavator Engine specifications
Aspiration Turbocharged
Bore 5.00 in (12.70 cm)
Displacement 628.60 cu in (10,300.93 cu cm)
Engine Make 2236
Engine Model Cat 3176C ATAAC
Gross Power 345.00 hp (257.27 kw)
Net Flywheel Power 321.00 hp (239.37 kw)
Net Power 321.00 hp (239.37 kw)
Net Power - Iso 9249 321.00 hp (239.37 kw)
Net Power - Sae J1349 321.00 hp (239.37 kw)
Power Measured @ 2000 rpm
Stroke 5.60 in (14.22 cm)

Hydraulic System

Caterpillar 345B L II Excavator Hydraulic System specifications
Boom Cylinder - Bore 6.30 in (16.00 cm)
Boom Cylinder - Stroke 62.00 in (157.48 cm)
Main System - Maximum Flow - Total 95.10 gpm (359.95 lpm)
Maximum Pressure - Equipment - Normal 4980 psi
Maximum Pressure - Swing 4130 psi
Maximum Pressure - Travel 4980 psi
Pilot System - Maximum Flow 10.80 gpm (40.88 lpm)
Stick Cylinder - Bore 7.50 in (19.05 cm)
Stick Cylinder - Stroke 69.20 in (175.77 cm)

Operating Specifications

Caterpillar 345B L II Excavator Operating Specifications specifications
Maximum Digging Depth 30.60 ft (9.33 m)
Maximum Reach - Ground Level 42.70 ft (13.01 m)

Operational

Caterpillar 345B L II Excavator Operational specifications
Alternator Supplied Amperage 70 amps
Cooling System Fluid Capacity 17.50 gal (66.24 l)
Engine Oil Capacity 8.00 gal (30.28 l)
Fuel Capacity 190.30 gal (720.29 l)
Hydraulic Pump Flow Capacity 190.30 gpm (720.29 lpm)
Hydraulic System Fluid Capacity 137.40 gal (520.06 l)
Hydraulic System Relief Valve Pressure 4977.7 psi
Operating Voltage 24 V
Operating Weight 113,097.20 lbs (51,300.09 kg)
Swing Drive Fluid Capacity 2.70 gal (10.22 l)

Service Refill Capacities

Caterpillar 345B L II Excavator Service Refill Capacities specifications
Cooling System 12.00 gal (45.42 l)
Engine Oil 7.90 gal (29.90 l)
Final Drive - Each 4.00 gal (15.14 l)
Fuel Tank Capacity 190.00 gal (719.15 l)
Hydraulic System - Including Tank 137.00 gal (518.55 l)
Hydraulic Tank 55.00 gal (208.18 l)
Swing Drive - Each 2.60 gal (9.84 l)

Sound Performance

Caterpillar 345B L II Excavator Sound Performance specifications
Performance ANSI/SAE J1166 MAY90 Meets OSHA and MSHA Requirements

Standards

Caterpillar 345B L II Excavator Standards specifications
Brakes SAE J1026 APR90
Cab/Fogs SAE J1356 FEB 88 and ISO 10262-1998

Swing Mechanism

Caterpillar 345B L II Excavator Swing Mechanism specifications
Swing Speed 8.6 rpm
Swing Torque 110,260.00 lbs ft (149,490.51 nm)

Track

Caterpillar 345B L II Excavator Track specifications
Number Of Carrier Rollers - Each Side 2
Number Of Track Rollers - Each Side - Standard Undercarriage 9
Optional For Long Undercarriage 30.00 in (76.20 cm)
Standard With Long Undercarriage 36.00 in (91.44 cm)

Undercarriage

Caterpillar 345B L II Excavator Undercarriage specifications
Drawbar Pull 74,411.76 lbs (33,752.65 kg)
Ground Pressure 13.08 psi
Max Travel Speed 2.74 mph (4.41 kph)
Shoe Size 23.63 in (60.02 cm)
Track Gauge 12.21 ft (3.72 m)

Weights

Caterpillar 345B L II Excavator Weights specifications
Operating Weight - Long Undercarriage 98,017.00 lbs (44,459.82 kg)
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