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320 Hydraulic Excavator
340 UHD Ultra High Demolition Hydraulic Excavator

Engine

Net Power - ISO 9249 172 HP 346 HP -
Net Power - ISO 9249 (DIN) 175 hp (metric) 352 hp (metric) -
Engine Model Cat C4.4 Cat C9.3B -
Engine Power - ISO 14396 174 HP 347 HP -
Engine Power - ISO 14396 (DIN) 176 hp (metric) 351 hp (metric) -
Bore 4 in 5 in -
Stroke 5 in 6 in -
Displacement 269 in³ 568 in³ -
Biodiesel Capability Up to B20¹ Up to B20¹ -
Emissions Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. 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 2,200 rpm. Advertised power is tested per the specified standard in effect at the time 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 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 -

Weights

Operating Weight 49800 lb 121000 lb -
Note Reach boom, R2.9 (9'6") stick, Heavy Duty (HD) 1.19 m ³ (1.56 yd³) bucket 790 mm (31") triple grouser shoes, 4200 kg (10,400 lb) counterweight. - -
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. -
Machine Weight - Retrofit Configuration - 118600 lb -
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. -
UHD in Cradle - 18700 lb -
Retrofit Boom in Cradle - R3.9 DB Stick - 13710 lb -
Retrofit Boom in Cradle - R3.2 DB Stick - 13340 lb -
Retrofit Boom in Cradle - R2.8 DB Stick - 13120 lb -
2-piece Retrofit boom in cradle - R3.2 DB stick - 17440 lb -

Working Ranges & Forces

Maximum Digging Depth 22 ft - -
Boom Reach 5.7 m (18'8") - -
Stick Reach 2.9 m (9'6") - -
Bucket 1.19 m ³ (1.56 yd³) - -
Maximum Reach at Ground Level 32.3 ft - -
Maximum Cutting Height 30.7 ft - -
Maximum Loading Height 21.3 ft - -
Minimum Loading Height 7.1 ft - -
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 21.5 ft - -
Maximum Vertical Wall Digging Depth 17 ft - -
Bucket Digging Force - ISO 38811 lbf - -
Stick Digging Force - ISO 23911 lbf - -

Hydraulic System

Main System - Maximum Flow 429 l/min (113 gal/min) 560 l/min (148 gal/min) -
Maximum Pressure - Equipment 5075 psi 5076 psi -
Maximum Pressure - Travel 4974 psi 5076 psi -
Maximum Pressure - Swing 3988 psi 4264 psi -
Maximum Pressure - Equipment - Lift Mode - 5511 psi -

Swing Mechanism

Maximum Swing Torque 60300 ft·lbf 105000 ft·lbf -
Swing Speed - 8 r/min -

Service Refill Capacities

Fuel Tank Capacity 86.6 gal (US) 159 gal (US) -
Cooling System 6.6 gal (US) 11 gal (US) -
Engine Oil 4 gal (US) 9 gal (US) -
Swing Drive - Each 1.6 gal (US) - -
Final Drive - Each 1.1 gal (US) 2 gal (US) -
Hydraulic System - Including Tank 61.8 gal (US) 145 gal (US) -
Hydraulic Tank 30.4 gal (US) 43 gal (US) -
DEF Tank 10.3 gal (US) 21 gal (US) -
Swing Drive - 5 gal (US) -

Dimensions

Boom Reach 5.7 m (18'8") - -
Stick Reach 2.9 m (9'6") - -
Bucket 1.19 m ³ (1.56 yd³) - -
Shipping Height - Top of Cab 9.7 ft 11.1 ft -
Handrail Height 9.7 ft - -
Shipping Length 31.3 ft 49.9 ft -
Tail Swing Radius 9.3 ft 11.6 ft -
Counterweight Clearance 3.4 ft 4.6 ft -
Ground Clearance 1.5 ft 1.7 ft -
Track Length 14.6 ft 18.9 ft -
Length to Center of Rollers 11.7 ft - -
Track Gauge 7.8 ft - -
Transport Width 9.8 ft 10.7 ft -
Note (1) - 22 m (72'2") UHD Front -
Cab Height - With OPG - 11.8 ft -
Track Length to Center of Rollers - 15.6 ft -
Working Gauge - Extended Position - 11.1 ft -
Shipping Gauge - Retracted Position - 7.8 ft -
Machine Length - without Front, with Counterweight - 23.3 ft -
Machine Length - without Front and Counterweight - 22.9 ft -
Track Width - Extended - 13.1 ft -
Track Width - Retracted - 9.8 ft -
Note (2) - 600 mm (24") Track Shoes -

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 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons). 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). -

Sustainability

Recyclability 97% - -

Working Ranges and Forces

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

Swing Mechanism - UHD Fronts

Swing Speed - 4.09 r/min -

Working Ranges and Forces - Retrofit Boom - Straight

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

Working Ranges and Forces - Retrofit Boom - Bent

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