345C Ultra High Demolition (UHD) Hydraulic Excavator

Caterpillar engineers have designed and produced specialized machines with the objective of increasing productivity at every stage of the process. Added to that, our machines have been developed with an emphasis on stability, durability and ease of use. They also come with the backing of your local Cat® dealer. They can help you with finding the right machine and tools for the job and advise you how to get the most out of your equipment.








Units:  US 

Engine Model

Cat® C13 ACERT

Cat® C13 ACERT

Net Power

325 hp

239 kW


1800 RPM

1800 RPM


Operating weight

147710 lb

67000 kg

Machine weight (UHD configuration)

141537 lb

64200 kg

Machine weight (retrofit configuration)

135364 lb

61400 kg

Max tool weight (over the front)

5512 lb

2500 kg

Max tool weight (360°)

5512 lb

2500 kg

Max tool weight (over the side)

5512 lb

2500 kg


Shipping gauge (retracted position)

95 in

2400 mm

Working gauge (extended position)

119 in

3010 mm

Ground clearance

18 in

460 mm

Shipping length

701 in

17800 mm

Boom height

123 in

3120 mm

Cab height (with FOGS)

147 in

3720 mm

Working Range

Max horizontal reach

16 400-18 150 mm 646-715 in

16 400-18 150 mm 646-715 in

Maximum allowable angle from vertical

25 Degrees

25 Degrees

Max pin height

26 100-27 900 mm 1,028-1,098 in

The Attachments Idea Book
Landscapers use a variety of attachments for doing everything from snow removal to jobsite cleanup, and regardless of how often they are used, every landscaper has a favorite attachment.
Attachments Idea Book Cover