340 UHD hydraulic excavator

Hydraulic excavators (CAT)

Demolition work has never been easier than with the Cat® 340 UHD hydraulic excavator. Greater reach with larger attachments for optimized performance. Enjoy the versatility, precision, and efficiency offered by standard Cat technologies. Equipped with a stability monitoring system and a cab with operator protective guards (OPG), the 340 UHD allows you to work longer and in a safer environment.

Net power – ISO 9249258.3 kW
Net power – ISO 9249 (DIN)351 HP (metric units)
Engine power – ISO 14396259 kW
Engine power – ISO14396 (DIN)352 HP (metric units)
Bore115 mm
Race149 mm
Engine displacement9.3 liters
Maximum pressure – Equipment35,000 kPa
Maximum pressure – Equipment – Lifting mode38,000 kPa
Maximum pressure – Translation35,000 kPa
Maximum pressure – Orientation29,400 kPa
Orientation speed5.02 rpm
Orientation speed8.84 rpm
Maximum orientation torque143 kN·m
Operating weight55,400 kg
Machine weight - Adaptable configuration53,900 kg
UHD in cradle9,230 kg
Adaptable boom in cradle - Arm R3.2 DB6,050 kg
Adaptable boom in cradle - Arm R3.9 DB6,220 kg
2-piece adaptable boom in cradle - R3.2 DB arm7,910 kg
Fuel tank capacity600 l
Cooling circuit40 l
Engine oil32 l
Orientation reducer18 l
Reducer - Each8 l
Hydraulic circuit – Tank included550 l
Hydraulic reservoir161 l
Shipping height – Top of cabin134 inches
Cabin height - with OPG3585 mm
Shipping length18160 mm
Rear clearance radius14 in
Counterweight ground clearance55.5 inches
Ground clearance510 mm
Length of chains5770 mm
Length of chains to the center of the rollers4770 mm
Transport indicator - Retracted position95.25 inches
Work indicator - Output position3400 mm
Transport width3255 mm
Machine length – without front equipment, with counterweight7077 mm
Machine length – without front equipment and counterweight6954 mm
Chain width - Unfolded position4000 mm
Chain width - Retracted position3000 mm
Maximum height of the pin at the end of the arm25 m
Maximum weight at the end of the arm3,300 kg
Maximum working height of the pin at the end of the arm - 1/221270 mm
Maximum working range at the end of the arm - 1/251.1 inches
Maximum height at the end of the arm in the maximum reach position15,900 mm
Maximum reach at the end of the arm13330 mm
Maximum height of the pin at the end of the arm12.76 m
Maximum weight at the end of the arm4,200 kg
Maximum height at the end of the arm in the maximum reach position91.5 inches
Maximum reach at the end of the arm11320 mm
Maximum excavation depth5640 mm
Maximum range - Ground level12,910 mm
Maximum cutting height14540 mm
Maximum loading height10960 mm
Minimum loading height4110 mm
Bucket digging force – ISO210 kN
Arm excavation force – ISO144 kN
Maximum excavation depth7250 mm
Maximum range - Ground level11920 mm
Maximum cutting height43 feet
Maximum loading height7940 mm
Minimum loading height95.5 inches
Bucket digging force – ISO210 kN
Arm excavation force – ISO144 kN

Whether you're digging, trenching, or loading trucks in Peoria, Illinois, or on job sites around the world, Cat® excavators deliver reliable performance, versatility, and fuel efficiency. Available in a variety of sizes and configurations, they are designed for ease of use, long-term durability, and advanced technology that promotes productivity and safety, helping you work efficiently every day.

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