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340 UHD Ultra High Demolition Hydraulic Excavator

340 UHD Ultra High Demolition Hydraulic Excavator

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More Comfort – More Performance – More Versatility

  • MAXIMIZE MACHINE UTILIZATION

    Hydraulic quick disconnect requires no tools to swap booms in 15 minutes; choose your front - work up to 22 m with a 3.7 T tool (72 ft with 8,160 lb tool) or up to 25 m with a 3.3 T tool (82 ft with 7,275 lb tool) front or basement to 2 story work and truckloading with Retrofit.

  • MAXIMIZE JOBSITE EFFICIENCY

    Variable gauge undercarriage provides excellent stability exteneded and ease of transportation retracted.

  • COMFORT & SAFETY

    Deluxe cab tilts 30 degrees for a more ergonomic operator station includes P5A high resistance glass for safety and premium seat for comfort while 254 mm (10 in) color touchscreen indicates easy to read stability monitoring system information.

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 Cat C9.3B
Engine Power - ISO 14396 347 HP
Engine Power - ISO 14396 (DIN) 351 hp (metric)
Net Power - ISO 9249 346 HP
Net Power - ISO 9249 (DIN) 352 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) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 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. *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
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

Swing Mechanism - UHD Fronts

Swing Speed 4.09 r/min

Swing Mechanism

Maximum Swing Torque 105000 ft·lbf
Swing Speed 8 r/min

Weights

2-piece Retrofit boom in cradle - R3.2 DB stick 17440 lb
Machine Weight - Retrofit Configuration 118600 lb
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 122600 lb
Retrofit Boom in Cradle - R2.8 DB Stick 13120 lb
Retrofit Boom in Cradle - R3.2 DB Stick 13340 lb
Retrofit Boom in Cradle - R3.9 DB Stick 13710 lb
UHD in Cradle 18700 lb

Service Refill Capacities

Cooling System 11 gal (US)
DEF Tank 21 gal (US)
Engine Oil 9 gal (US)
Final Drive - Each 2 gal (US)
Fuel Tank Capacity 159 gal (US)
Hydraulic System - Including Tank 145 gal (US)
Hydraulic Tank 43 gal (US)
Swing Drive 5 gal (US)

Dimensions

Cab Height - With OPG 11.8 ft
Counterweight Clearance 4.6 ft
Ground Clearance 1.7 ft
Machine Length - without Front and Counterweight 22.9 ft
Machine Length - without Front, with Counterweight 23.3 ft
Note (1) 22 m (72'2") UHD Front
Note (2) 600 mm (24") Track Shoes
Shipping Gauge - Retracted Position 7.8 ft
Shipping Height - Top of Cab 11.1 ft
Shipping Length 49.9 ft
Tail Swing Radius 11.6 ft
Track Length 18.9 ft
Track Length to Center of Rollers 15.6 ft
Track Width - Extended 13.1 ft
Track Width - Retracted 9.8 ft
Transport Width 10.7 ft
Working Gauge - Extended Position 11.1 ft

Working Ranges and Forces

Maximum Height at Stick Nose in Max Reach Position 41.5 ft
Maximum Pin Height at Stick Nose 72.2 ft
Maximum Reach at Stick Nose 44.4 ft
Maximum Weight at Stick Nose 8160 lb
Maximum Working Pin Height at Stick Nose - 1/2 61 ft
Maximum Working Reach at Stick Nose - 1/2 38.4 ft
Note (1) 22 m (72' 2") UHD Front (Over-the-Front)

Working Ranges and Forces - Retrofit Boom - Straight

Bucket GD 2.27 m³ (2.97 yd³)
Bucket Digging Force - ISO 47160 lbf
Maximum Digging Depth 16.1 ft
Maximum Height at Stick Nose in Max Reach Position 7.6 ft
Maximum Loading Height 34 ft
Maximum Pin Height at Stick Nose 39.8 ft
Maximum Reach - Ground Level 39.9 ft
Maximum Reach at Stick Nose 34.8 ft
Maximum Weight at Stick Nose 9260 lb
Minimum Loading Height 15.7 ft
Note 1 Straight - R3.2 m (10' 6") Stick (Over-the-Front) - HVG Undercarriage
Stick Digging Force - ISO 37300 lbf

Working Ranges and Forces - Retrofit Boom - Bent

Bucket GD 2.27 m³ (2.97 yd³)
Bucket Digging Force - ISO 47160 lbf
Maximum Cutting Height 35.4 ft
Maximum Digging Depth 21.4 ft
Maximum Loading Height 24.9 ft
Maximum Reach - Ground Level 36.7 ft
Minimum Loading Height 10.4 ft
Note 1 Bent - R3.2DB (10'6") Stick - HVG Undercarriage
Stick Digging Force - ISO 37300 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).

Download resources

Demolition Excavators 330, 340, 352 SB | 340, 352 UHD - Product Brochure (Europe, N Am, Japan)
340 UHD Excavator - Technical Specifications (Europe, N Am, Japan)

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