340F UHD Ultra High Demolition Hydraulic Excavator

The 340F Ultra High Demolition reaches where other machines cannot, with its unique boom coupling system, you can easily and quickly install or remove high-reach and short front parts, making your demo jobs safer and faster. Where the real power comes in is through the hydraulic system. You can literally rip up and tear down structures all day long with a great deal of speed, precision, and control. Caterpillar offers the best-in-class work tool capability – bigger and more versatile work tools for bigger and more versatile demolition applications. When you add in a quiet and comfortable tilting cab, easy-to-reach maintenance points, and legendary product support, you simply won’t find a better 40-ton choice for demolition.

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Operating Weight 117103lb
Note (1) Operating Weight includes Cat MP324 Multiporcessor with Demolition Jaws and Quick Coupler
Machine Weight - UHD Configuration 112014lb
Note (2) UHD Front, counterweight, quick coupler and no Work Tool with 600 mm (24") TG track shoes
Machine Weight - Retrofit Configuration 109368lb
Note (3) Retrofit boom and R3.9 m (12' 10") stick and 2.12 M3 (2.77 yd3) HD Bucket, 600 mm (24") TG track shoes
UHD in Cradle 20163lb

Working Ranges and Forces

Maximum Pin Height at Stick Nose 71.2ft
Maximum Weight at Stick Nose 7938lb
Maximum Reach at Stick Nose 46ft
Maximum Height at Stick Nose in Max Reach Position 40ft
Maximum Working Pin Height at Stick Nose - 1/2 61ft
Maximum Working Reach at Stick Nose - 1/2 33.8ft


Engine Model Cat C9.3
Engine Power - ISO 14396 313HP
Bore 4.5in
Stroke 5.9in
Displacement 567.5in³

Hydraulic System

Main System - Maximum Flow 570 l/min (150.6 gal/min)
Maximum Pressure - Equipment 5076psi
Maximum Pressure - Travel 5076psi
Maximum Pressure - Swing 4061psi

Swing Mechanism - UHD Fronts

Swing Speed 4.4r/min

Swing Mechanism

Swing Speed 8.9r/min
Maximum Swing Torque 101042ft·lbf

Service Refill Capacities

Fuel Tank Capacity 163.8gal (US)
Cooling System 11.4gal (US)
Engine Oil 8.5gal (US)
Swing Drive 5gal (US)
Final Drive - Each 2.1gal (US)
Hydraulic System - Including Tank 111gal (US)
Hydraulic Tank 46.2gal (US)
DEF Tank 10.8gal (US)


Note (1) UHD Front
Shipping Height - Top of Cab 11.8ft
Shipping Length 49.9ft
Tail Swing Radius 11.5ft
Counterweight Clearance 4.2ft
Ground Clearance 1.5ft
Track Length to Center of Rollers 13.3ft
Track Gauge 9.3ft
Transport Width 9.9ft
Machine Length - without Front, with Counterweight 23.5ft
Cab Height - With FOGS 11.75ft
Note (2) 600 mm (24") track shoes
Track Width - Retracted 9.83ft
Track Width - Extended 11.25ft

Working Ranges and Forces - Retrofit Boom - Straight

Note 1 R3.9 m (12' 10") DB stick
Bucket 2.28 m3 (3 yd3) HD
Maximum Digging Depth 19.7ft
Maximum Reach - Ground Level 42.3ft
Maximum Loading Height 35.2ft
Minimum Loading Height 12.8ft
Bucket Digging Force - ISO 44530lbf
Stick Digging Force - ISO 32110lbf

Working Ranges and Forces - Retrofit Boom - Bent

Note 1 R3.9 m (12' 10") DB Stick Over-the-Front
Bucket 2.28 m3 (3 yd3) HD
Maximum Digging Depth 24.9ft
Maximum Reach - Ground Level 39.1ft
Maximum Cutting Height 35.7ft
Maximum Loading Height 25.2ft
Minimum Loading Height 7.3ft
Bucket Digging Force - ISO 44530lbf
Stick Digging Force - ISO 32110lbf

Standard Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • 80 amp alternator
  • Circuit breaker
  • Battery, standard
  • Beacon
  • Cat C9.3 diesel engine
  • Meets Japan 2014 (Tier 4 Final) emission standards
  • 2300 m altitude capability with no derate
  • Auto engine speed control
  • Electric priming pump
  • Water separator in fuel line including water level sensor and indicator
  • High, economy and standard power modes
  • Air cleaner
  • Radial seal air filter
  • Side-by-side cooling system
  • Primary filter with water separator and water separator indicator switch
  • Starting kit, cold weather, –18° C
  • Fuel differential indicator switch in fuel line
  • 2×4 micron main filters and 1×10 micron primary filter in fuel line
Hydraulic System
  • Reverse swing damping valve
  • Auto swing parking brake
  • High-performance hydraulic return filter
  • Regeneration circuit for boom and stick
  • QC Control
Front Linkage
  • UHD boom nose with left/right lights:
    – Fore boom with left/right lights
    – UHD 7.1 m stick
    – CB linkage with lifting eye
    – Cylinder bucket
  • Demolition cab with P5A glass (front and top)
  • Parallel wiper and washer (front and top)
  • Mirrors
  • Pressurized operator station with positive filtration
  • Sliding upper door window (left-hand cab door)
  • Interior:
    – Coat hook
    – Beverage holder
    – Literature holder
    – Interior lighting
    – AM/FM radio mounting (DIN size)
    – Two 12V stereo speakers
    – Storage shelf suitable for lunch or toolbox
    – Power supply with 12V, two power outlets (10 amp)
    – Thumb wheel modulation joysticks for use with combined auxiliary control
    – Air conditioner, heater and defroster with climate control
  • Seat:
    – Adjustable high-back, heated/ventilated seat with air suspension
    – Seat belt, 51 mm
    – Adjustable armrest
    – Height adjustable joystick consoles
    – Neutral lever (lock out) for all controls
    – Travel control pedals with removable hand levers
    – Two speed travel
    – Floor mat, washable
  • Monitor:
    – Clock
    – Video ready
    – Color LCD display with warning, filter/fluid change, and working hour information
    – Language display (full graphic and full color display)
    – Machine condition, error code and tool mode setting information
    – Start-up level check for engine oil, engine coolant and hydraulic oil
    – Warning, filter/fluid change and working hour information
    – Fuel consumption meter
  • Windshield:
    – One-piece, fixed
  • Sun screen
  • Grease Lubricated Track GLT2, resin seal
  • HD track roller
  • Towing eye on base frame
  • HD bottom guard
  • HD travel motor guard
  • Swivel guard
  • Counterweight, 8.45 mt on UHD, 7.0 mt on 2PB
  • Cab and boom lights with time delay (halogen)
  • Exterior lights integrated into storage box
Safety And Security
  • Cat one key security system
  • Door locks
  • Cap locks on fuel and hydraulic tanks
  • Lockable external tool/storage box
  • Signaling/warning horn
  • Secondary engine shutoff switch
  • Mirrors
  • Rearview and side-view cameras
Cat Connect Technologies
  • Product Link
  • Rear vision and side vision cameras
  • FOGS (Falling Object Guard System) including overhead and windshield guards

Optional Equipment

  • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Quick drains, engine and hydraulic oil (QuickEvac)
Hydraulic System
  • HP hydraulic lines for stick
  • MP hydraulic lines for stick
  • QC hydraulic lines for stick
Electrical System
  • Premium surround lighting package
Front Linkage
  • Retrofit Reach boom nose with left/right lights
  • R2.8DB stick
  • R3.2DB stick
  • R3.9DB stick
  • DB linkage with lifting eye
  • Cradle for UHD front parts
  • Cradle for Retrofit front parts
  • 600 mm double grouser tracks
  • 600 mm triple grouser HD tracks
  • 700 mm triple grouser tracks
  • Cold weather starting package, 240V, –32° C
  • Rubber bumpers on upperframe
  • Track guiding guards:
    – Full length
    – Center