340 UHD Ultra High Demolition Hydraulic Excavator

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The Cat® 340 UHD provides optimum machine solutions for building demolition up to 8 stories. With its unique coupling system, you can switch between two lengths of Ultra High Demolition fronts and two types of Retrofit booms and sticks with no special tools in 15 minutes. You simply won’t find a better 50-ton class choice for demolition..

From: $443,382.66*

* Taxes, shipping & handling, surcharges, assembly charges, destination, freight and/or delivery charges are not included. This is not an offer for sale. Displayed pricing is for informational purposes only. The pricing shown above utilizes the Manufacturer's Suggested Retail Price (MSRP) that is published for the machine (without any attachments or protection plans) as described above. The actual prices and terms and conditions of sale for all products are to be solely determined by the selling

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2-piece Retrofit boom in cradle - R3.2 DB stick 17440lb
Machine Weight - Retrofit Configuration 118600lb
Note (1) Hydraulic Variable Gauge undercarriage, 22 m (72'2") UHD front, 600 mm (24") Heavy Duty (HD) triple grouser shoes and 9.0 mt (19,842 lb) counterweight. No work tool.
Note (2) Hydraulic Variable Gauge undercarriage, Retrofit boom, R3.2DB (10'6") stick, General Duty (GD) 2.27 m³ (2.97 yd³) bucket, 600 mm (24") HD triple grouser shoes and 9.0 mt (19,842 lb) counterweight.
Operating Weight 121000lb
Retrofit Boom in Cradle - R2.8 DB Stick 13120lb
Retrofit Boom in Cradle - R3.2 DB Stick 13340lb
Retrofit Boom in Cradle - R3.9 DB Stick 13710lb
UHD in Cradle 18700lb
Maximum Height at Stick Nose in Max Reach Position 41.5ft
Maximum Pin Height at Stick Nose 72.2ft
Maximum Reach at Stick Nose 44.4ft
Maximum Weight at Stick Nose 8160lb
Maximum Working Pin Height at Stick Nose - 1/2 61ft
Maximum Working Reach at Stick Nose - 1/2 38.4ft
Note (1) 22 m (72' 2") UHD Front (Over-the-Front)
Biodiesel Capability Up to B20¹
Bore 5in
Displacement 568in³
Emissions Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Engine Model Cat C9.3B
Engine Power - ISO 14396 347HP
Engine Power - ISO 14396 (DIN) 351hp (metric)
Net Power - ISO 9249 346HP
Net Power - ISO 9249 (DIN) 352hp (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
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
Stroke 6in
Main System - Maximum Flow 560 l/min (148 gal/min)
Maximum Pressure - Equipment 5076psi
Maximum Pressure - Equipment - Lift Mode 5511psi
Maximum Pressure - Swing 4264psi
Maximum Pressure - Travel 5076psi
Swing Speed 4.09r/min
Maximum Swing Torque 105000ft·lbf
Swing Speed 8r/min
Cooling System 11gal (US)
DEF Tank 21gal (US)
Engine Oil 9gal (US)
Final Drive - Each 2gal (US)
Fuel Tank Capacity 159gal (US)
Hydraulic System - Including Tank 145gal (US)
Hydraulic Tank 43gal (US)
Swing Drive 5gal (US)
Cab Height - With OPG 11.8ft
Counterweight Clearance 4.6ft
Ground Clearance 1.7ft
Machine Length - without Front and Counterweight 22.9ft
Machine Length - without Front, with Counterweight 23.3ft
Note (1) 22 m (72'2") UHD Front
Note (2) 600 mm (24") Track Shoes
Shipping Gauge - Retracted Position 7.8ft
Shipping Height - Top of Cab 11.1ft
Shipping Length 49.9ft
Tail Swing Radius 11.6ft
Track Length 18.9ft
Track Length to Center of Rollers 15.6ft
Track Width - Extended 13.1ft
Track Width - Retracted 9.8ft
Transport Width 10.7ft
Working Gauge - Extended Position 11.1ft
Bucket GD 2.27 m³ (2.97 yd³)
Bucket Digging Force - ISO 47160lbf
Maximum Digging Depth 16.1ft
Maximum Height at Stick Nose in Max Reach Position 7.6ft
Maximum Loading Height 34ft
Maximum Pin Height at Stick Nose 39.8ft
Maximum Reach - Ground Level 39.9ft
Maximum Reach at Stick Nose 34.8ft
Maximum Weight at Stick Nose 9260lb
Minimum Loading Height 15.7ft
Note 1 Straight - R3.2 m (10' 6") Stick (Over-the-Front) - HVG Undercarriage
Stick Digging Force - ISO 37300lbf
Bucket GD 2.27 m³ (2.97 yd³)
Bucket Digging Force - ISO 47160lbf
Maximum Cutting Height 35.4ft
Maximum Digging Depth 21.4ft
Maximum Loading Height 24.9ft
Maximum Reach - Ground Level 36.7ft
Minimum Loading Height 10.4ft
Note 1 Bent - R3.2DB (10'6") Stick - HVG Undercarriage
Stick Digging Force - ISO 37300lbf
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).

Standard Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cab
    • Tilt-up demolition cab with P5A laminated front and roof glass
    • High-resolution 254 mm (10") LCD touchscreen monitor
    • Premium heated and cooled auto adjustable suspension seat
    • Bluetooth® integrated radio
    • 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
    • Cat Stick Steer
    • Auxiliary relay
    • Tilt rocker switch
    • Sky wiper switch
    • LED interior lights
    • Roller front sunscreen
    • P5A fixed windshield
  • Cat Technology
    • VisionLink®
    • Remote Flash
    • Stability monitoring system
    • Electronic pitch and roll indicator
    • Travel direction indicator
    • Operator Coaching
    • Electronic joystick pattern changer
    • Cat Grade with 2D and offset memory (Retrofit boom only)
    • Cat Payload (Retrofit boom only)
  • Electrical System
    • Maintenance-free 1,000 CCA batteries (x 4)
    • Centralized electrical disconnect switch
    • LED lights
  • Engine
    • Three selectable modes: Power, Smart, ECO
    • Auto engine speed control
    • Up to 4500 m (14,760 ft) altitude capability
    • Reverse fan
    • 52° C (126° F) high-ambient cooling
    • -18° C (0° F) cold start capability
    • Double element air filter with integrated pre-cleaner
  • Hydraulic System
    • Boom lowering check valve (BLCV) for UHD front
    • Stick lower check valve (SLCV) for UHD front
    • Electronic main control valve
    • Heavy lift mode
    • Auto hydraulic oil warmup
    • Auto swing parking brake
    • High Performance hydraulic return filter
    • Two-speed travel
    • Bio hydraulic oil capability
  • Safety And Security
    • 2D E-Fence (swing)
    • Cat One Key security system
    • Lockable external tool/storage box
    • Lockable door, fuel, and hydraulic tanks
    • Lockable fuel drain compartment
    • Lockable disconnect switch
    • Service platform with anti-skid plate and recessed bolts
    • Rear and right-hand side cameras
    • Operator Protective Guards (OPG)
  • Service And Maintenance
    • Integrated vehicle health management system
    • Grouped location of engine oil and fuel filters
    • Scheduled Oil Sampling (S·O·S℠) ports
  • Undercarriage And Structures
    • 9.0 mt (19,842 lb) counterweight
    • Full-length track guiding guards
    • Travel motor guard
    • Bottom guard

Optional Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Booms And Sticks
    • 22 m (72'2") UHD front
    • 25 m (82'0") UHD front
    • Two-piece Retrofit Variable Adjustment boom
    • 7.4 m (24'3") Retrofit boom
    • 3.9 m (12'10") Retrofit stick
    • 3.2 m (10'6") Retrofit stick
    • 2.8 m (9'2") Retrofit stick
    • Advanced tool control, UHD
    • Cradle for UHD front parts
    • Cradle for Retrofit front parts
  • Cab
    • Roller rear sunscreen
  • Cat Technology
    • VisionLink Productivity
  • Electrical System
    • Premium surround lighting package
  • Engine
    • -32° C (-25° F) cold start capability
    • Cold start block heaters
    • Ether starting aid
  • Hydraulic System
    • SmartBoom with BLCV and Overload Warning Device for UHD front
    • Bio hydraulic oil capability
    • Combined two-way auxiliary circuits
    • High and medium-pressure auxiliary circuits
    • Quick coupler circuit
  • Safety And Security
    • 360° visibility
  • Service And Maintenance
    • QuickEvac maintenance ready
    • Electric refueling pump with auto shutoff
  • Undercarriage And Structures
    • Hydraulic Variable Gauge undercarriage
    • Fixed Gauge undercarriage
    • 600 mm (24 in) double grouser track shoes
    • 600 mm (24 in) HD triple grouser track shoes
    • 700 mm (28 in) triple grouser track shoes
    • 700 mm (28") HD triple grouser track shoes