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 9249	258.3 kW
Net power – ISO 9249 (DIN)	351 HP (metric units)
Engine power – ISO 14396	259 kW
Engine power – ISO14396 (DIN)	352 HP (metric units)
Bore	115 mm
Race	149 mm
Engine displacement	9.3 liters
Maximum pressure – Equipment	35,000 kPa
Maximum pressure – Equipment – Lifting mode	38,000 kPa
Maximum pressure – Translation	35,000 kPa
Maximum pressure – Orientation	29,400 kPa
Orientation speed	5.02 rpm
Orientation speed	8.84 rpm
Maximum orientation torque	143 kN·m
Operating weight	55,400 kg
Machine weight - Adaptable configuration	53,900 kg
UHD in cradle	9,230 kg
Adaptable boom in cradle - Arm R3.2 DB	6,050 kg
Adaptable boom in cradle - Arm R3.9 DB	6,220 kg
2-piece adaptable boom in cradle - R3.2 DB arm	7,910 kg
Fuel tank capacity	600 l
Cooling circuit	40 l
Engine oil	32 l
Orientation reducer	18 l
Reducer - Each	8 l
Hydraulic circuit – Tank included	550 l
Hydraulic reservoir	161 l
Shipping height – Top of cabin	134 inches
Cabin height - with OPG	3585 mm
Shipping length	18160 mm
Rear clearance radius	14 in
Counterweight ground clearance	55.5 inches
Ground clearance	510 mm
Length of chains	5770 mm
Length of chains to the center of the rollers	4770 mm
Transport indicator - Retracted position	95.25 inches
Work indicator - Output position	3400 mm
Transport width	3255 mm
Machine length – without front equipment, with counterweight	7077 mm
Machine length – without front equipment and counterweight	6954 mm
Chain width - Unfolded position	4000 mm
Chain width - Retracted position	3000 mm
Maximum height of the pin at the end of the arm	25 m
Maximum weight at the end of the arm	3,300 kg
Maximum working height of the pin at the end of the arm - 1/2	21270 mm
Maximum working range at the end of the arm - 1/2	51.1 inches
Maximum height at the end of the arm in the maximum reach position	15,900 mm
Maximum reach at the end of the arm	13330 mm
Maximum height of the pin at the end of the arm	12.76 m
Maximum weight at the end of the arm	4,200 kg
Maximum height at the end of the arm in the maximum reach position	91.5 inches
Maximum reach at the end of the arm	11320 mm
Maximum excavation depth	5640 mm
Maximum range - Ground level	12,910 mm
Maximum cutting height	14540 mm
Maximum loading height	10960 mm
Minimum loading height	4110 mm
Bucket digging force – ISO	210 kN
Arm excavation force – ISO	144 kN
Maximum excavation depth	7250 mm
Maximum range - Ground level	11920 mm
Maximum cutting height	43 feet
Maximum loading height	7940 mm
Minimum loading height	95.5 inches
Bucket digging force – ISO	210 kN
Arm excavation force – ISO	144 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.