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340 Hydraulic Excavator

With up to 10 percent more productivity than the model it replaces, the Cat® 340 is the best in its class for moving tons per hour. Add in the excavator’s low owning and operating costs and you will profit like nobody’s business.

Net Power - ISO 9249
346 HP
Operating Weight
83100 lb
Maximum Digging Depth
26.9 ft
Net Power - ISO 9249 (DIN)
351 hp (metric)

Engine

Net Power - ISO 9249
346HP
Net Power - ISO 9249 (DIN)
351hp (metric)
Engine Model
Cat C9.3B
Engine Power - ISO 14396
347HP
Engine Power - ISO 14396 (DIN)
352hp (metric)
Bore
5in
Stroke
6in
Displacement
568in³
Biodiesel Capability
Up to B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Note (1)
Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 2,000 rpm. Advertised power is tested per the specified standard in effect at the time
Note (2)
¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO

Weights

Operating Weight
83100lb

Working Ranges & Forces

Maximum Digging Depth
26.9ft
Boom
Reach 6.5 m (21'4")
Stick
Reach 3.9 m (12'10")
Bucket
HD 2.36 m³ (3.08 yd³)
Maximum Reach at Ground Level
38.6ft
Maximum Cutting Height
35.3ft
Maximum Loading Height
24.5ft
Minimum Loading Height
6.2ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
26.5ft
Maximum Vertical Wall Digging Depth
21.1ft
Bucket Digging Force - ISO
47190lbf
Stick Digging Force - ISO
32480lbf

Hydraulic System

Main System - Maximum Flow
148gal/min
Maximum Pressure - Equipment
5076psi
Maximum Pressure - Equipment - Lift Mode
5511psi
Maximum Pressure - Travel
5076psi
Maximum Pressure - Swing
4264psi

Swing Mechanism

Swing Speed
8.84r/min
Maximum Swing Torque
105214ft·lbf

Service Refill Capacities

Fuel Tank Capacity
158.5gal (US)
Cooling System
10.5gal (US)
Engine Oil
8.5gal (US)
Swing Drive - Each
4.8gal (US)
Final Drive - Each
2.1gal (US)
Hydraulic System - Including Tank
98.5gal (US)
Hydraulic Tank
42.5gal (US)
DEF Tank
21.1gal (US)

Dimensions

Boom
Reach 6.5 m (21'4")
Stick
Reach 3.9 m (12'10")
Bucket
HD 2.36 m³ (3.08 yd³)
Shipping Height - Top of Cab
10.5ft
Handrail Height
10.5ft
Shipping Length
36.8ft
Tail Swing Radius
11.7ft
Counterweight Clearance
4.2ft
Ground Clearance
1.8ft
Track Length
16.6ft
Track Length to Center of Rollers
13.3ft
Track Gauge
9ft
Transport Width - 850 mm (33”) Shoes
11.9ft

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.00 kg of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes.

Standard Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cat Technology
    • VisionLink®
    • Remote Flash
    • Remote Troubleshoot
    • Compatibility with radios and base stations from Trimble, Topcon, and Leica
    • Capability to install 3D grade systems from Trimble, Topcon, and Leica
    • Cat Grade 2D
    • Cat Assist
    • Cat Payload
    • Auto hammer stop
    • Work tool recognition (PL161)
    • Work tool tracking (PL161)
  • Electrical System
    • Maintenance-free 1,000 CCA batteries (x2)
    • Centralized electrical disconnect switch
    • LED exterior chassis and boom lights
  • Engine
    • Three selectable modes: Power, Smart, Eco
    • Auto engine speed control
    • - 18° C (0° F) cold start capability
    • Double element air filter with integrated pre-cleaner
    • Remote disable
  • Hydraulic System
    • Boom and stick regeneration circuit
    • Electronic main control valve
    • Auto heavy lift
    • Auto dig boost
    • Auto hydraulic oil warmup
    • Bio hydraulic oil capability
    • Fine swing
    • Reverse swing damping valve
    • Auto swing parking brake
    • High performance hydraulic return filter
    • Two speed travel
  • Safety And Security
    • Cat E-Fence
    • Caterpillar One Key security system
    • Lockable external tool / storage box
    • Lockable door, fuel, and hydraulic tank locks
    • Lockable fuel drain compartment
    • Lockable disconnect switch
    • Service platform with anti-skid plate & recessed bolts
    • RH handrail and handhold
    • Signaling / warning horn
    • Ground-level secondary engine shutoff switch
    • Rearview camera
    • Inspection Lighting
  • Service And Maintenance
    • Integrated vehicle health management system
    • Grouped location of engine oil & fuel filters
    • Sampling ports for Scheduled Oil Sampling (S·O·S℠)
  • Undercarriage And Structures
    • Towing eye on base frame
    • Swivel guard
    • HD bottom guard
    • HD travel motor guards
    • Grease lubricated track
    • HD swing frame
    • HD swing bearing
    • 7.56 mt (16,667 lb) counterweight
  • Deluxe Cab
    • High-resolution 203 mm (8") LCD touchscreen monitor
    • Auto bi-level air conditioner
    • Jog dial and shortcut keys for monitor control
    • Keyless push-to-start engine control
    • Height-adjustable console
    • Tilt-up left-side console
    • Heated air-suspension seat
    • Monitor integrated Bluetooth radio with USB/Aux ports
    • 12V DC outlets
    • Document storage
    • Overhead storage and rear storage with nets
    • Beverage holder
    • Cup holder
    • Openable two-piece front window
    • Rear window emergency exit
    • Radial wiper with washer
    • Openable polycarbonate skylight hatch
    • LED dome light
    • Floor welcome light
    • Roof sunscreen
    • Roller front sunscreen
    • Washable floor mat
    • Beacon ready
  • Premium Cab
    • High-resolution 254 mm (10") LCD touchscreen monitor
    • Auto bi-level air conditioner
    • Jog dial and shortcut keys for monitor control
    • Keyless push-to-start engine control
    • Height-adjustable console
    • Tilt-up left-side console
    • Heated and ventilated air-suspension seat
    • Monitor integrated Bluetooth radio with USB/Aux ports
    • 12V DC outlets
    • Document storage
    • Overhead storage and rear storage with nets
    • Beverage holder
    • Cup holder
    • Openable two-piece front window
    • Rear window emergency exit
    • Parallel wiper
    • Openable polycarbonate skylight hatch
    • LED dome light
    • Floor welcome light
    • Roof sunscreen
    • Roller front sunscreen
    • Washable floor mat
    • Beacon ready

Optional Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Booms And Sticks
    • 6.18 m (20'3") Mass boom
    • 6.5 m (21'4") HD Reach boom
    • 2.55 m (8'4") Mass stick
    • 2.8 m (9'2") HD Reach stick
    • 3.2 m (10'6") HD Reach stick
    • 3.9 m (12'10") HD Reach stick
    • TB family bucket linkage with/without lifting eye
    • DB family bucket linkage with/without lifting eye
  • Cat Technology
    • Cat Grade Connectivity
    • Cat Grade 2D with Attachment Ready Option (ARO)
    • Cat Grade with 3D single GNSS
    • Cat Grade with 3D dual GNSS
    • Cat Tilt Rotator (TRS) Integration
    • Operator Coaching
  • Electrical System
    • Maintenance-free 1,000 CCA batteries (x4)
  • Engine
    • Oil level sensor
    • Battery-operated engine heater
    • Cold start block heater
    • 52°C (126°F) high-ambient cooling
    • Hydraulic reverse fan
    • -32°C (-25°F) cold start capability
  • Hydraulic System
    • Single one-way circuit
    • Combined two-way circuit
    • Hydraulic efficiency monitoring
  • Safety And Security
    • Cat Detect - People Detection
    • Cat Command remote control
    • Swing alarm
    • Boom lowering check valve
    • Stick lowering check valve
  • Undercarriage And Structures
    • Full-length track guiding guards
    • Segmented two-piece track guiding guards
    • HD rollers
    • 600 mm (24") double grouser, triple grouser, HD triple grouser track shoes
    • 700 mm (28") triple grouser track shoes
    • 800 mm (31") triple grouser track shoes
    • 850 mm (33") triple grouser track shoes
  • Deluxe Cab
    • High-resolution 254 mm (10") LCD touchscreen monitor
    • Roller rear sunscreen
    • Cat Stick Steer
    • Auxiliary relay
  • Premium Cab
    • One-piece front windshield
    • Cat Stick Steer
    • Auxiliary relay

Severe Duty Bucket 1900 mm (75 in)

Width
75 in
Capacity
3.64 yd³
Weight
838 lb

Severe Duty Bucket 1850 mm (74 in)

Width
74 in
Capacity
3.52 yd³
Weight
5705 lb

Severe Duty Bucket 1700 mm (67 in)

Width
67 in
Capacity
3.15 yd³
Weight
5309 lb

Severe Duty Bucket 1750 mm (69 in)

Width
69 in
Capacity
3.14 yd³
Weight
974 lb

Severe Duty Bucket 1500 mm (59 in)

Width
59 in
Capacity
2.5 yd³
Weight
3549 lb

Heavy Duty Bucket 1850 mm (72 in)

Width
72 in
Capacity
3.08 yd³
Weight
3882 lb

Heavy Duty Bucket 1650 mm (66 in)

Width
66 in
Capacity
2.77 yd³
Weight
3668 lb

Heavy Duty Bucket 900 mm (36 in)

Width
36 in
Capacity
1.24 yd³
Weight
2480 lb

General Duty Bucket 1650 mm (66 in)

Width
66 in
Capacity
3.33 yd³
Weight
3252 lb

Extreme Duty Bucket 1550 mm (61 in)

Width
61 in
Capacity
2.59 yd³
Weight
888 lb

MP332 Tank Shear

Cycle Time - Open
1.9 s
Excavator Minimum
32 tons
Cycle Time - Close
1.3 s

MP332 Universal Jaw

Cycle Time - Open
1.6 s
Excavator Minimum
32 tons
Cycle Time - Close
1 s

MP324 Shear Jaw

Cycle Time - Open
1.9 s
Excavator Minimum
32 tons
Cycle Time - Close
1.3 s

MP324 Pulverizer Jaw

Cycle Time - Open
1.9 s
Excavator Minimum
32 tons
Cycle Time - Close
1.3 s

MP332 Demolition Jaw

Cycle Time - Open
1.9 s
Excavator Minimum
32 tons
Cycle Time - Close
1.3 s

MP332 Concrete Cutter Jaw

Cycle Time - Open
1.9 s
Excavator Minimum
32 tons
Cycle Time - Close
1.3 s

H180 GC S Hammer

Impact Energy Class
10750 ft-lb
Blows per Minute
200-400
Maximum Operating Weight
5471.4 lb

H160 GC S Hammer

Impact Energy Class
7500 ft-lb
Blows per Minute
200-450
Maximum Operating Weight
5471.4 lb

GSH440-1550-5

Capacity
2 yd³
Maximum Lift Capacity
22046 lb
Shell Type Options
Semi-open

GSH440-1150-S

Capacity
1.5 yd³
Maximum Lift Capacity
22046 lb
Shell Type Options
Semi-open

S80 S Type Excavator Coupler: 573-3169

Weight
939 lb
Lifting Hook Capacity
10 ton (US)
Width
23.23 in

Specifications

Standard/Optional Features

Attachments