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..
| Operating Weight | 122600lb |
| 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 | 118600lb |
| 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 | 18700lb |
| Retrofit Boom in Cradle - R3.9 DB Stick | 13710lb |
| Retrofit Boom in Cradle - R3.2 DB Stick | 13340lb |
| Retrofit Boom in Cradle - R2.8 DB Stick | 13120lb |
| 2-piece Retrofit boom in cradle - R3.2 DB stick | 17440lb |
| Maximum Pin Height at Stick Nose | 72.2ft |
| 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 |
| Maximum Height at Stick Nose in Max Reach Position | 41.5ft |
| Maximum Reach at Stick Nose | 44.4ft |
| Note (1) | 22 m (72' 2") UHD Front (Over-the-Front) |
| Engine Model | Cat C9.3B |
| Net Power - ISO 9249 | 346HP |
| Engine Power - ISO 14396 (DIN) | 351hp (metric) |
| Engine Power - ISO 14396 | 347HP |
| Net Power - ISO 9249 (DIN) | 352hp (metric) |
| Bore | 5in |
| Stroke | 6in |
| Displacement | 568in³ |
| Biodiesel Capability | Up to B20¹ |
| Emissions | 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 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 |
| Main System - Maximum Flow | 560 l/min (148 gal/min) |
| Maximum Pressure - Equipment | 5076psi |
| Maximum Pressure - Equipment - Lift Mode | 5511psi |
| Maximum Pressure - Travel | 5076psi |
| Maximum Pressure - Swing | 4264psi |
| Swing Speed | 4.09r/min |
| Swing Speed | 8r/min |
| Maximum Swing Torque | 105000ft·lbf |
| Fuel Tank Capacity | 159gal (US) |
| Cooling System | 11gal (US) |
| Engine Oil | 9gal (US) |
| Swing Drive | 5gal (US) |
| Final Drive - Each | 2gal (US) |
| Hydraulic System - Including Tank | 145gal (US) |
| Hydraulic Tank | 43gal (US) |
| DEF Tank | 21gal (US) |
| Note (1) | 22 m (72'2") UHD Front |
| Shipping Height - Top of Cab | 11.1ft |
| Cab Height - With OPG | 11.8ft |
| Shipping Length | 49.9ft |
| Tail Swing Radius | 11.6ft |
| Counterweight Clearance | 4.6ft |
| Ground Clearance | 1.7ft |
| Track Length | 18.9ft |
| Track Length to Center of Rollers | 15.6ft |
| Working Gauge - Extended Position | 11.1ft |
| Shipping Gauge - Retracted Position | 7.8ft |
| Transport Width | 10.7ft |
| Machine Length - without Front, with Counterweight | 23.3ft |
| Machine Length - without Front and Counterweight | 22.9ft |
| Track Width - Extended | 13.1ft |
| Track Width - Retracted | 9.8ft |
| Note (2) | 600 mm (24") Track Shoes |
| 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 | 39.8ft |
| Maximum Weight at Stick Nose | 9260lb |
| Maximum Height at Stick Nose in Max Reach Position | 7.6ft |
| Maximum Reach at Stick Nose | 34.8ft |
| Maximum Digging Depth | 16.1ft |
| Maximum Reach - Ground Level | 39.9ft |
| Maximum Loading Height | 34ft |
| Minimum Loading Height | 15.7ft |
| Bucket Digging Force - ISO | 47160lbf |
| Stick Digging Force - ISO | 37300lbf |
| Note 1 | Bent - R3.2DB (10'6") Stick - HVG Undercarriage |
| Bucket | GD 2.27 m³ (2.97 yd³) |
| Maximum Digging Depth | 21.4ft |
| Maximum Reach - Ground Level | 36.7ft |
| Maximum Cutting Height | 35.4ft |
| Maximum Loading Height | 24.9ft |
| Minimum Loading Height | 10.4ft |
| Bucket Digging Force - ISO | 47160lbf |
| 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). |
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340 UHD Ultra High Demolition Hydraulic Excavator