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Cat® 340 Hydraulic Excavator

The Cat® 340 is evidence of our time-proven engineering and manufacturing know-how for top-notch quality, reliability, and durability. In addition to a powerful engine with millions of hours of service and reinforced booms and sticks for taking on hard and heavy work, the standard, heavy-duty reinforced undercarriage expertly absorbs the stress between jobsite terrain and machine. Built for rugged conditions, this rock-solid machine will help you turn payloads into profit.

Engine

Net Power - ISO 9249 346hp
Net Power - ISO 9249 (DIN) 351hp (metric)
Engine Model Cat C9.3B
Engine Power - ISO 14396:2002 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 and 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