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.
| Engine | |
|---|---|
| Engine Model | Cat C9.3B |
| Net Power - ISO 9249 | 346 hp / 258.3 kW |
| Net Power - ISO 9249 (DIN) | 351 hp (metric) |
| Engine Power - ISO 14396 | 347 hp / 259 kW |
| Engine Power - ISO 14396 (DIN) | 352 hp (metric) |
| Bore | 5 in / 115 mm |
| Stroke | 6 in / 149 mm |
| Displacement | 568 in³ / 9.3 l |
| 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 of manufacture. |
| Note (2) | ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 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. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). |
| Hydraulic System | |
|---|---|
| Main System - Maximum Flow | 560 l/min (148 gal/min) |
| Maximum Pressure - Equipment | 5076 psi / 35000 kPa |
| Maximum Pressure - Equipment - Lift Mode | 5511 psi / 38000 kPa |
| Maximum Pressure - Travel | 5076 psi / 35000 kPa |
| Maximum Pressure - Swing | 4264 psi / 29400 kPa |
| Swing Mechanism - UHD Fronts | |
|---|---|
| Swing Speed | 4.09 r/min |
| Swing Mechanism | |
|---|---|
| Swing Speed | 8 r/min |
| Maximum Swing Torque | 105000 lbf·ft / 143 kN·m |
| Weights | |
|---|---|
| Operating Weight | 122600 lb / 55600 kg |
| Note (1) | Hydraulic Variable Gauge undercarriage, 25 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 / 53800 kg |
| 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 / 8480 kg |
| Retrofit Boom in Cradle - R3.9 DB Stick | 13710 lb / 6220 kg |
| Retrofit Boom in Cradle - R3.2 DB Stick | 13340 lb / 6050 kg |
| Retrofit Boom in Cradle - R2.8 DB Stick | 13120 lb / 5950 kg |
| 2-Piece Retrofit Boom in Cradle - R3.2 DB Stick | 17440 lb / 7910 kg |
| Service Refill Capacities | |
|---|---|
| Fuel Tank Capacity | 158.5 gal (US) / 600 l |
| Cooling System | 10.5 gal (US) / 40 l |
| Engine Oil | 8.5 gal (US) / 32 l |
| Swing Drive | 4.8 gal (US) / 18 l |
| Final Drive - Each | 2.1 gal (US) / 8 l |
| Hydraulic System - Including Tank | 145.3 gal (US) / 550 l |
| Hydraulic Tank | 42.5 gal (US) / 161 l |
| DEF Tank | 21.1 gal (US) / 80 l |
| Dimensions | |
|---|---|
| Note (1) | 22 m (72'2") UHD Front |
| Shipping Height - Top of Cab | 11.1 ft / 3383 mm |
| Cab Height - With OPG | 11.8 ft / 3585 mm |
| Shipping Length | 49.8 ft / 15160 mm |
| Tail Swing Radius | 11.6 ft / 3521 mm |
| Counterweight Clearance | 4.6 ft / 1397 mm |
| Ground Clearance | 1.7 ft / 510 mm |
| Track Length | 18.9 ft / 5770 mm |
| Track Length to Center of Rollers | 15.7 ft / 4770 mm |
| Working Gauge - Extended Position | 11.2 ft / 3400 mm |
| Shipping Gauge - Retracted Position | 7.8 ft / 2400 mm |
| Transport Width | 10.7 ft / 3255 mm |
| Machine Length - without Front, with Counterweight | 23.3 ft / 7077 mm |
| Machine Length - without Front and Counterweight | 22.8 ft / 6954 mm |
| Track Width - Extended | 13.1 ft / 4000 mm |
| Track Width - Retracted | 9.8 ft / 3000 mm |
| Note (2) | 600 mm (24") Track Shoes |
| Working Ranges and Forces | |
|---|---|
| Maximum Pin Height at Stick Nose | 72.2 ft / 22 m |
| Maximum Weight at Stick Nose | 8160 lb / 3700 kg |
| Maximum Working Pin Height at Stick Nose - 1/2 | 61 ft / 18590 mm |
| Maximum Working Reach at Stick Nose - 1/2 | 38.4 ft / 11680 mm |
| Maximum Height at Stick Nose in Max Reach Position | 41.5 ft / 12640 mm |
| Maximum Reach at Stick Nose | 44.4 ft / 13550 mm |
| Note (1) | 22 m (72' 2") UHD Front (Over-the-Front) |
| Working Ranges and Forces - Retrofit Boom - Straight | |
|---|---|
| Note 1 | Straight - R3.2DB 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 / 12.13 m |
| Maximum Weight at Stick Nose | 9260 lb / 4200 kg |
| Maximum Height at Stick Nose in Max Reach Position | 7.6 ft / 2310 mm |
| Maximum Reach at Stick Nose | 34.8 ft / 10620 mm |
| Maximum Digging Depth | 16.1 ft / 4910 mm |
| Maximum Reach - Ground Level | 39.9 ft / 12160 mm |
| Maximum Loading Height | 34 ft / 10370 mm |
| Minimum Loading Height | 15.8 ft / 4790 mm |
| Bucket Digging Force - ISO | 47160 lbf / 210 kN |
| Stick Digging Force - ISO | 37300 lbf / 166 kN |
| 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 / 6520 mm |
| Maximum Reach - Ground Level | 36.7 ft / 11180 mm |
| Maximum Cutting Height | 35.4 ft / 10790 mm |
| Maximum Loading Height | 24.9 ft / 7600 mm |
| Minimum Loading Height | 10.4 ft / 3180 mm |
| Bucket Digging Force - ISO | 47160 lbf / 210 kN |
| Stick Digging Force - ISO | 37300 lbf / 166 kN |
| Air Conditioning System | |
|---|---|
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system contains 1.000 kg (2.205lb.) of refrigerant, which has a CO2 equivale of 1.430 metric tonnes (1.576 tons). If equipped with R1234yf (Global Warming Potential = 0.501), the system contains 0.790 kg (1.742 lb.) of refrigerant, which has a CO2 equivalent of 0.001 metric tonnes (0.001 tons). |
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