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 M318 Wheeled Excavator |
 340 UHD Ultra High Demolition Hydraulic Excavator |
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Engine |
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| Engine Power - ISO 14396 | 174 HP | 347 HP | - |
| Engine Power - ISO 14396 (DIN) | 176 hp (metric) | 351 hp (metric) | - |
| Engine Model | C4.4 | Cat C9.3B | - |
| Net Power - ISO 9249 | 171 HP | 346 HP | - |
| Net Power - ISO 9249 (DIN) | 174 hp (metric) | 352 hp (metric) | - |
| Bore | 4 in | 5 in | - |
| Displacement | 285.5 in³ | 568 in³ | - |
| Stroke | 5 in | 6 in | - |
| Biodiesel Capability | Up to B20¹ | Up to B20¹ | - |
| Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V, 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 cleaner, CEM exhaust gas aftertreatment, alternator, and cooling fan with engine speed at 2,200 rpm. Advertised power is tested per the specified standar | 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 | - |
Machine Weight |
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| Operating Weight Maximum | 43980 lb | - | - |
| Operating Weight Minimum | 38580 lb | - | - |
| Note (1) | Operating weight includes full fuel tank, operator, bucket 610 kg (1,340 lb), and dual pneumatic tires. Weight varies depending on configuration. | - | - |
| Note (2) | Typical configurations include 2500 mm (8'2") medium stick and 3700 kg (8,157 lb) counterweight. | - | - |
Drive |
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| Maximum Travel Speed | 21.7 mile/h | - | - |
Hydraulic System |
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| Main System - Maximum Flow - Implement | 67 gal/min | - | - |
| Maximum Pressure - Equipment | 5366 psi | 5076 psi | - |
| Maximum Pressure - Swing | 5149 gal/min | 4264 psi | - |
| Maximum Pressure - Travel | 5076 gal/min | 5076 psi | - |
| Main System - Maximum Flow | - | 560 l/min (148 gal/min) | - |
| Maximum Pressure - Equipment - Lift Mode | - | 5511 psi | - |
Service Refill Capacities |
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| Cooling System | 8.5 gal (US) | 11 gal (US) | - |
| Diesel Exhaust Fluid (DEF) | 5.3 gal (US) | - | - |
| Hydraulic System - Including Tank | 68.7 gal (US) | 145 gal (US) | - |
| Hydraulic Tank | 31.7 gal (US) | 43 gal (US) | - |
| Final Drive | 0.7 gal (US) | - | - |
| Fuel Tank | 92.5 gal (US) | - | - |
| Fuel Tank Capacity | - | 159 gal (US) | - |
| Engine Oil | - | 9 gal (US) | - |
| Swing Drive | - | 5 gal (US) | - |
| Final Drive - Each | - | 2 gal (US) | - |
| DEF Tank | - | 21 gal (US) | - |
Dimensions |
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| Boom | 5205 mm (17'1") | - | - |
| Bucket | 0.91 m³ GD (1.19 yd³) | - | - |
| Stick | 2.5 m (8' 2") | - | - |
| Shipping Height - Top of Cab | 11 ft | 11.1 ft | - |
| Shipping Length | 27.8 ft | 49.9 ft | - |
| Counterweight Clearance | 4.3 ft | 4.6 ft | - |
| Ground Clearance | 1.1 ft | 1.7 ft | - |
| Support Point | 11.5 ft | - | - |
| Tail Swing Radius | 7.7 ft | 11.6 ft | - |
| Wheel Base | 8.9 ft | - | - |
| Note (1) | - | 22 m (72'2") UHD Front | - |
| Cab Height - With OPG | - | 11.8 ft | - |
| Track Length | - | 18.9 ft | - |
| Track Length to Center of Rollers | - | 15.6 ft | - |
| Working Gauge - Extended Position | - | 11.1 ft | - |
| Shipping Gauge - Retracted Position | - | 7.8 ft | - |
| Transport Width | - | 10.7 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 | - |
Working Ranges and Forces |
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| Boom Type | VA Boom | - | - |
| Bucket | 0.91 m³ GD (1.19 yd³) | - | - |
| Digging Height | 19.3 ft | - | - |
| Stick | 2.5 m (8' 2") | - | - |
| Reach at Ground Level | 30.2 ft | - | - |
| Vertical Wall Digging Depth | 15.1 ft | - | - |
| Note (1) | Range values are with dual pneumatic tires (10.00-20). Range values are calculated with a GD bucket (CW) and CW-30 quick coupler with a tip radius of 1484 mm (4'10"). Force values are calculated with heavy lift on, a GD bucket (pin-on), and a tip radius o | 22 m (72' 2") UHD Front (Over-the-Front) | - |
| Bucket Forces (ISO) | 26752 lbf | - | - |
| Stick Forces (ISO) | 16861 lbf | - | - |
| Cutting Height | 33.7 ft | - | - |
| 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 | - |
Swing Mechanism |
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| Maximum Swing Speed | 32560 ft·lbf | - | - |
| Swing Speed | 9.4 r/min | 8 r/min | - |
| Maximum Swing Torque | - | 105000 ft·lbf | - |
Service Refill |
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| Engine Oil | 2.9 gal (US) | - | - |
Air Conditioning System |
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| Note | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg of refrigerant which has a CO2 equivalent of 1.216 metric tonnes. | - | - |
| 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). | - |
Sustainability |
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| Recyclability | 92% | - | - |
Weights |
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| Operating Weight | - | 121000 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. | - |
| 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 | - |
Swing Mechanism - UHD Fronts |
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| Swing Speed | - | 4.09 r/min | - |
Working Ranges and Forces - Retrofit Boom - Straight |
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| 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 |
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| 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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