Cat

Cat® 340 Hydraulic Excavator

Name: Cat® 340 Hydraulic Excavator
Brand: Cat

Net Power – ISO 9249

346 hp

258.3 kW

Operating Weight

83100 lb

37700 kg

Maximum Digging Depth

26.9 ft

8210 mm

Overview

The Cat® 340 is evidence of our time-proven engineering and manufacturing know-how for top-notch quality, reliability, and durability. In addition to a powerful engine with millions of hours of service and reinforced booms and sticks for taking on hard and heavy work, the standard, heavy-duty reinforced undercarriage expertly absorbs the stress between jobsite terrain and machine. Built for rugged conditions, this rock-solid machine will help you turn payloads into profit.

Media

Stick Steer for Cat® Excavators

Exterior

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Interior

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Features

Latest Features

High Performance

Efficiency Through Technology

Take The Guesswork Out of Managing Your Equipment

Cat® 340 Hydraulic Excavator Less Maintenance

Easy Maintenance

Dedicated Service and Superior Support

Work in Comfort

Safely Home Every Day

Simple to Operate

Sustainability

340 Variable Angle Boom (VAB) Configuration

340 Variable Angle Boom Configuration

Specifications

US Metric

Engine

Spec	Value
Net Power – ISO 9249	346 hp 258.3 kW
Net Power – ISO 9249 (DIN)	351 hp (metric) 351 hp (metric)
Engine Model	Cat C9.3B Cat C9.3B
Engine Power – ISO 14396	347 hp 259 kW
Engine Power – ISO 14396 (DIN)	352 hp (metric) 352 hp (metric)
Bore	5 in 115 mm
Stroke	6 in 149 mm
Displacement	568 in³ 9.3 l
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 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. 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 2,000 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. 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.

Hydraulic System

Spec	Value
Main System – Maximum Flow	148 gal/min 560 l/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

Spec	Value
Swing Speed	8.84 r/min 8.84 r/min
Maximum Swing Torque	105214 ft·lbf 143 kN·m

Weights

Spec	Value
Operating Weight	83100 lb 37700 kg

Service Refill Capacities

Spec	Value
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 – Each	4.8 gal (US) 18 l
Final Drive – Each	2.1 gal (US) 8 l
Hydraulic System – Including Tank	98.5 gal (US) 373 l
Hydraulic Tank	42.5 gal (US) 161 l
DEF Tank	21.1 gal (US) 80 l

Dimensions

Spec	Value
Boom	Reach 6.5 m (21'4") Reach 6.5 m (21'4")
Stick	Reach 3.9 m (12'10") Reach 3.9 m (12'10")
Bucket	HD 2.36 m³ (3.08 yd³) HD 2.36 m³ (3.08 yd³)
Shipping Height – Top of Cab	10.5 ft 3180 mm
Handrail Height	10.5 ft 3180 mm
Shipping Length	36.8 ft 11180 mm
Tail Swing Radius	11.7 ft 3530 mm
Counterweight Clearance	4.2 ft 1260 mm
Ground Clearance	1.8 ft 510 mm
Track Length	16.6 ft 5030 mm
Track Length to Center of Rollers	13.3 ft 4040 mm
Track Gauge	9 ft 2740 mm
Transport Width – 850 mm (33”) Shoes	11.9 ft 3590 mm

Working Ranges & Forces

Spec	Value
Maximum Digging Depth	26.9 ft 8210 mm
Boom	Reach 6.5 m (21'4") Reach 6.5 m (21'4")
Stick	Reach 3.9 m (12'10") Reach 3.9 m (12'10")
Bucket	HD 2.36 m³ (3.08 yd³) HD 2.36 m³ (3.08 yd³)
Maximum Reach at Ground Level	38.6 ft 11760 mm
Maximum Cutting Height	35.3 ft 10740 mm
Maximum Loading Height	24.5 ft 7470 mm
Minimum Loading Height	6.2 ft 1890 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	26.5 ft 8080 mm
Maximum Vertical Wall Digging Depth	21.1 ft 6420 mm
Bucket Digging Force – ISO	47190 lbf 210 kN
Stick Digging Force – ISO	32480 lbf 145 kN

Air Conditioning System

Spec	Value
Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.00 kg of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.00 kg of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes.