Piscataway Campus
732-885-5555
Bensalem Campus
877-726-7663

Demolition Excavators

340 Straight Boom Excavator

  • Engine Model
    C9.3B
  • Net Power
    346 HP
  • Net Power
    351 hp (metric)
  • Engine Power
    347 HP
Engine
Engine Model
C9.3B
Net Power
346 HP
Net Power
351 hp (metric)
Engine Power
347 HP
Engine Power
352 hp (metric)
Bore
5 in
Stroke
6 in
Displacement
568 in³
Biodiesel Capability
Up to B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Note
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
Note
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
Hydraulic System
Main System
560 l/min (148 gal/min)
Maximum Pressure
5076 psi
Maximum Pressure
5511 psi
Maximum Pressure
5076 psi
Maximum Pressure
4264 psi
Swing Mechanism
Swing Speed
8.84 r/min
Maximum Swing Torque
10741 ft·lbf
Weights
Operating Weight
87800 lb
Note
Long undercarriage, Straight boom, R3.9DB (12'10") stick, GD 2.27 m³ (2.97 yd³) bucket, 700 mm (28") triple grouser shoes, and 9.0 mt (19,800 lb) counterweight.
Service Refill Capacities
Fuel Tank Capacity
158.5 gal (US)
Cooling System
10.5 gal (US)
Engine Oil
8.5 gal (US)
Swing Drive
4.8 gal (US)
Final Drive
2.1 gal (US)
Hydraulic System
98.5 gal (US)
Hydraulic Tank
42.5 gal (US)
DEF Tank
21.1 gal (US)
Dimensions
Note
340 SB with R3.9 m DB stick (12' 10"), 2.27 m3 (2.97 yd3) GD bucket, long undercarriage with 600 mm (24") TG HD tracks
Boom
Straight 6.9 m (22'8")
Stick
Reach 3.9 m (12'10")
Bucket
GD 2.27 m³ (2.97 yd³)
Shipping Height
11 ft
Cab Height
11.5 ft
Shipping Length
37.4 ft
Tail Swing Radius
11.6 ft
Counterweight Clearance
4.1 ft
Ground Clearance
1.7 ft
Track Length
16.5 ft
Track Length to Center of Rollers
13.3 ft
Track Gauge
8.5 ft
Transport Width
10.9 ft
Cab Height
11.5 ft
Note
700 mm (28") Track Shoe
Working Ranges and Forces
Maximum Pin Height at Stick Nose
39.4 ft
Maximum Weight at Stick Nose
9170 lb
Boom
Straight 6.9 m (22'8")
Stick
Reach 3.9 m (12'10")
Bucket
GD 2.27 m³ (2.97 yd³)
Note
340 SB with R3.9 m DB stick (12' 10"), 2.27 m3 (2.97 yd3) GD bucket, long undercarriage with 600 mm (24") TG HD tracks
Maximum Digging Depth
21.8 ft
Maximum Reach at Ground Level
40.5 ft
Maximum Cutting Height
45.2 ft
Maximum Loading Height
33.6 ft
Minimum Loading Height
11 ft
Maximum Depth Cut for 2440 mm
21.4 ft
Maximum Vertical Wall Digging Depth
18.5 ft
Bucket Digging Force
47150 lbf
Stick Digging Force
32440 lbf
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 1.0 kg (2.2 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons).
  • 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 2D
    • Cat Assist
    • 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
    • 2300 m (7,546 ft) altitude capability with no engine power de-rating
    • 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
    • VisionLink Productivity
    • Cat Grade 2D with Attachment Ready Option (ARO)
    • Cat Grade 3D single GNSS
    • Cat Grade 3D dual GNSS
  • ELECTRICAL SYSTEM
    • Premium surround lighting package
  • ENGINE
    • Cold start block heaters
    • Auto reverse fan
    • -32° C (-25° F) cold start capability
  • HYDRAULIC SYSTEM
    • SmartBoom (Europe only)
    • Combined two-way auxiliary circuit with direct return
    • Medium-pressure auxiliary circuit
    • Cooling 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
  • 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