340 Straight Boom

Operating Weight
87800 lb / 39800 kg
Maximum Pin Height at Stick Nose
39.4 ft / 12 m
Maximum Weight at Stick Nose
9170 lb / 4160 kg

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.

Engine
Engine Model C9.3B
Net Power - ISO 9249 346 hp / 258.3 kW
Net Power - ISO 9249 (DIN) 351 hp (metric)
Engine Power - ISO 14396 347 hp / 259 kW
Engine Power - ISO 14396 (DIN) 352 hp (metric)
Bore 5 in / 115 mm
Stroke 6 in / 149 mm
Displacement 568 in³ / 9.3 l
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 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).
Hydraulic System
Main System - Maximum Flow 560 l/min (148 gal/min)
Maximum Pressure - Equipment 5076 psi / 35000 kPa
Maximum Pressure - Equipment - Lift Mode 5511 psi / 38000 kPa
Maximum Pressure - Travel 5076 psi / 35000 kPa
Maximum Pressure - Swing 4264 psi / 29400 kPa
Swing Mechanism
Swing Speed 8.84 r/min
Maximum Swing Torque 10741 lbf·ft / 143 kN·m
Weights
Operating Weight 87800 lb / 39800 kg
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.
Service Refill Capacities
Fuel Tank Capacity 158.5 gal (US) / 600 l
Cooling System 10.5 gal (US) / 40 l
Engine Oil 8.5 gal (US) / 32 l
Swing Drive 4.8 gal (US) / 18 l
Final Drive - Each 2.1 gal (US) / 8 l
Hydraulic System - Including Tank 98.5 gal (US) / 373 l
Hydraulic Tank 42.5 gal (US) / 161 l
DEF Tank 21.1 gal (US) / 80 l
Dimensions
Boom Straight 6.9 m (22'8")
Stick Reach 3.9 m (12'10")
Bucket GD 2.27 m³ (2.97 yd³)
Shipping Height - Top of Cab 11 ft / 3360 mm
Cab Height - With OPG 11.4 ft / 3490 mm
Shipping Length 37.3 ft / 11390 mm
Tail Swing Radius 11.6 ft / 3530 mm
Counterweight Clearance 4.2 ft / 1260 mm
Ground Clearance 1.7 ft / 520 mm
Track Length 16.5 ft / 5030 mm
Track Length to Center of Rollers 13.3 ft / 4040 mm
Track Gauge 8.5 ft / 2590 mm
Transport Width 10.8 ft / 3290 mm
Working Ranges and Forces
Maximum Pin Height at Stick Nose 39.4 ft / 12 m
Maximum Weight at Stick Nose 9170 lb / 4160 kg
Boom Straight 6.9 m (22'8")
Stick Reach 3.9 m (12'10")
Bucket GD 2.27 m³ (2.97 yd³)
Maximum Digging Depth 21.8 ft / 6650 mm
Maximum Reach at Ground Level 40.5 ft / 12350 mm
Maximum Cutting Height 45.2 ft / 13770 mm
Maximum Loading Height 33.7 ft / 10250 mm
Minimum Loading Height 11 ft / 3360 mm
Maximum Depth Cut for 2440 mm (8'0") Level Bottom 21.4 ft / 6520 mm
Maximum Vertical Wall Digging Depth 18.5 ft / 5640 mm
Bucket Digging Force -ISO 47150 lbf / 210 kN
Stick Digging Force - ISO 32440 lbf / 144 kN
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).

Standard Equipment

  • 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

Optional Equipment

  • 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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