New CAT Equipment

Cat® 340 Straight Boom Excavator

Perfect for low-level demolition, sorting, and excavating.

With an upgraded cab, long maintenance intervals, and power system that helps improve fuel efficiency, the Cat® 340 is the perfect choice for low-level demolition, sorting, and other excavation tasks.

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Benefits

High fuel efficiency

Leverage advanced engine and electrohydraulic control to help get more work done.

Improved cab with more comfort and safety

Deluxe cab with ISO-certified ROPS protection makes for a safer, quieter work environment.

Low maintenance costs

Extended maintenance intervals help increase uptime and reduce costs.

Learn more about the Cat® 340 Straight Boom Excavator

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  • Air Conditioning System
    Air Conditioning
    The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system contains 1.000 kg (2.205lb.) of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons). If equipped with R1234yf (Global Warming Potential = 0.501), the system contains 0.790 kg (1.742 lb.) of refrigerant, which has a CO2 equivalent of 0.001 metric tonnes (0.001 tons).
  • Dimensions
    Boom
    Straight 6.9 m (22'8")
    Bucket
    GD 2.27 m³ (2.97 yd³)
    Cab Height - With OPG
    11.4 ft
    Counterweight Clearance
    4.2 ft
    Ground Clearance
    1.7 ft
    Shipping Height - Top of Cab
    11 ft
    Shipping Length
    37.3 ft
    Stick
    Reach 3.9 m (12'10")
    Tail Swing Radius
    11.6 ft
    Track Gauge
    8.5 ft
    Track Length
    16.5 ft
    Track Length to Center of Rollers
    13.3 ft
    Transport Width
    10.8 ft
  • Engine
    Biodiesel Capability
    Up to B20¹
    Bore
    5 in
    Displacement
    568 in³
    Emissions
    Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
    Engine Model
    C9.3B
    Engine Power - ISO 14396
    347 hp
    Engine Power - ISO 14396 (DIN)
    352 hp (metric)
    Net Power - ISO 9249
    346 hp
    Net Power - ISO 9249 (DIN)
    351 hp (metric)
    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 1,900 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
    Note (2)
    ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
    Stroke
    6 in
  • Hydraulic System
    Main System - Maximum Flow
    560 l/min (148 gal/min)
    Maximum Pressure - Equipment
    5076 psi
    Maximum Pressure - Equipment - Lift Mode
    5511 psi
    Maximum Pressure - Swing
    4264 psi
    Maximum Pressure - Travel
    5076 psi
  • Service Refill Capacities
    Cooling System
    10.5 gal (US)
    DEF Tank
    21.1 gal (US)
    Engine Oil
    8.5 gal (US)
    Final Drive - Each
    2.1 gal (US)
    Fuel Tank Capacity
    158.5 gal (US)
    Hydraulic System - Including Tank
    98.5 gal (US)
    Hydraulic Tank
    42.5 gal (US)
    Swing Drive
    4.8 gal (US)
  • Swing Mechanism
    Maximum Swing Torque
    10741 lbf·ft
    Swing Speed
    8.84 r/min
  • Weights
    Note (1)
    Long Narrow undercarriage, Straight boom, R3.2DB (10'6") stick, GD 2.27 m³ (2.97 yd³) bucket, 600 mm (24") triple grouser shoes, and 9.0 mt (19,800 lb) counterweight.
    Operating Weight
    87800 lb
  • Working Ranges and Forces
    Boom
    Straight 6.9 m (22'8")
    Bucket
    GD 2.27 m³ (2.97 yd³)
    Bucket Digging Force -ISO
    47150 lbf
    Maximum Cutting Height
    45.2 ft
    Maximum Depth Cut for 2440 mm (8'0") Level Bottom
    21.4 ft
    Maximum Digging Depth
    21.8 ft
    Maximum Loading Height
    33.7 ft
    Maximum Pin Height at Stick Nose
    39.4 ft
    Maximum Reach at Ground Level
    40.5 ft
    Maximum Vertical Wall Digging Depth
    18.5 ft
    Maximum Weight at Stick Nose
    9170 lb
    Minimum Loading Height
    11 ft
    Stick
    Reach 3.9 m (12'10")
    Stick Digging Force - ISO
    32440 lbf
NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
BOOM AND STICKS
  • 6.9 m (22'8") Straight boom
CAB
  • ROPS, advanced sound suppression
  • High-resolution 254 mm (10") LCD touch screen monitor
  • Heated seat with air-adjustable suspension
CAT TECHNOLOGY
  • VisionLink™
  • Remote Flash
  • Remote Troubleshoot
  • Cat Grade with 2D
  • Cat Payload
ELECTRICAL SYSTEM
  • Maintenance-free 1,000 CCA batteries (x2)
  • Centralized electrical disconnect switch
  • LED chassis light
ENGINE
  • Three selectable modes: Power, Smart, Eco
  • Auto engine speed control
  • 3300 m (10,830 ft) altitude capability
  • 52° C (126° F) high-ambient cooling capacity
  • -18° C (0° F) cold start capability
  • Double element air filter with integrated pre-cleaner
HYDRAULIC SYSTEM
  • Boom and stick regeneration circuit
  • Electronic main control valve
  • Heavy lift mode
  • Auto hydraulic oil warmup
  • Reverse swing damping valve
  • Auto swing parking brake
  • High performance hydraulic return filter
  • Two speed travel
  • Bio hydraulic oil capability
SAFETY AND SECURITY
  • 2D E-fence
  • Auto hammer stop
  • 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 and recessed bolts
  • Right-hand handrail and hand hold
  • Standard visibility mirror package
  • Signaling / warning horn
  • Ground-level secondary engine shutoff switch
  • Rear and sideview cameras
  • Boom lowering check valve (optional in North America)
  • Stick lowering check valve (optional in North America)
SERVICE AND MAINTENANCE
  • Grouped location of engine oil & fuel filters
  • Sampling ports for Scheduled Oil Sampling (S·O·S℠)
  • Integrated vehicle health management system
UNDERCARRIAGE AND STRUCTURES
  • Towing eye on base frame
  • 9.0 mt (19,842 lb) counterweight
NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
BOOM AND STICKS
  • 3.2 m (10'6") Reach stick
  • 3.9 m (12'10") Reach stick
CAT TECHNOLOGY
  • Cat Grade 2D with Attachment Ready Option (ARO)
  • Cat Grade with 3D (single or dual GNSS)
ELECTRICAL SYSTEM
  • Premium surround lighting package
ENGINE
  • Cold start block heaters
  • Hydraulic reversing fan
  • -32° C (-25° F) cold start capability
HYDRAULIC SYSTEM
  • SmartBoom™ (Europe only)
  • Combined two-way auxiliary circuit with direct return filter
  • Medium-pressure auxiliary circuit
  • Quick coupler circuit for Cat Pin Grabber and CW Dedicated
SAFETY AND SECURITY
  • Cat Command (remote control)
  • Travel alarm (standard in North America)
  • Swing alarm
  • 360° visibility
SERVICE AND MAINTENANCE
  • Preventative maintenance ready (Quick Evac™)
  • Electric refueling pump with auto shutoff (Europe only)
UNDERCARRIAGE AND STRUCTURES
  • Long undercarriage
  • Long Narrow undercarriage
  • 600 mm (24") HD triple grouser track shoes
  • 700 mm (28") triple grouser track shoes
  • 850 mm (33") HD triple grouser track shoes

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