Komatsu PC55MR-3 Mini Excavator Specs

Category: Mini Excavators ➔
Manufacturer: Komatsu ➔
Model: PC55MR-3 ➔

The Komatsu PC55MR-3 Mini Excavator offers impressive capabilities in a compact package. With a maximum digging depth of 12.5 ft and a reach along the ground of 20 ft, this excavator is well-suited for various construction and landscaping tasks. Powered by a 38.2 hp engine and equipped with a hydraulic pump flow capacity of 37.2 gpm, the PC55MR-3 delivers efficient performance on the job site. Its compact dimensions, including a shipping height of 8.4 ft and width to outside of tracks of 6.5 ft, make it versatile and maneuverable in tight spaces. The operating weight of 11375.9 lbs and undercarriage features such as a ground pressure of 4.4 psi ensure stability and traction during operation.

Boom/Stick Excavator Option 1

Komatsu PC55MR-3 Mini Excavator Boom/Stick Excavator Option 1 specifications
Max Cutting Height	19.60 ft (5.97 m)
Max Digging Depth	12.50 ft (3.81 m)
Max Loading Height	13.90 ft (4.24 m)
Max Reach Along Ground	20.00 ft (6.10 m)
Max Vertical Wall Digging Depth	10.00 ft (3.05 m)
Shipping Height of Unit	8.40 ft (2.56 m)
Shipping Length of Unit	18.30 ft (5.58 m)

Dimensions

Komatsu PC55MR-3 Mini Excavator Dimensions specifications
Height - Top of Cab	8.40 ft (2.56 m)
Tail Swing Radius	3.50 ft (1.07 m)
Width to Outside of Tracks	6.50 ft (1.98 m)

Engine

Komatsu PC55MR-3 Mini Excavator Engine specifications
Displacement	134.00 cu in (2,195.87 cu cm)
Engine Model	4D88E-6
Net Power	38.20 hp (28.49 kw)
Power Measured @	2400 rpm

Operating Specifications

Komatsu PC55MR-3 Mini Excavator Operating Specifications specifications
Alternator Supplied Amperage	40 amps
Cooling System Fluid Capacity	2.30 gal (8.71 l)
Engine Oil Capacity	2.00 gal (7.57 l)
Fuel Capacity	17.20 gal (65.10 l)
Hydraulic Pump Flow Capacity	37.20 gpm (140.80 lpm)
Hydraulic System Fluid Capacity	5.30 gal (20.06 l)
Hydraulic System Relief Valve Pressure	3840 psi
Operating Voltage	12 V
Operating Weight	11,375.90 lbs (5,159.14 kg)

Swing Mechanism

Komatsu PC55MR-3 Mini Excavator Swing Mechanism specifications
Swing Speed	9 rpm

Undercarriage

Komatsu PC55MR-3 Mini Excavator Undercarriage specifications
Drawbar Pull	8,770.00 lbs (3,977.32 kg)
Ground Pressure	4.4 psi
Max Travel Speed	2.90 mph (4.67 kph)
Number of Carrier Rollers per Side	1
Number of Track Rollers per Side	4
Shoe Size	15.80 in (40.13 cm)
Track Gauge	5.20 ft (1.58 m)

Our Main Office

Construction Equipment Guide
470 Maryland Drive
Fort Washington, PA 19034
800-523-2200

About Us

Construction Equipment Guide covers the nation with its four regional newspapers, offering construction and industry news and information along with new and used construction equipment for sale from dealers in your area. Now we extend those services and information to the internet. Making it as easy as possible to find the news and equipment that you need and want.

Contents Copyrighted 2026, by Construction Equipment Guide, which is a Registered Trademark, registered in the U.S. Patent Office. Registration number 0957323. All rights reserved, nothing may be reprinted or reproduced (including framing) in whole or part without written permission from the publisher. All editorial material, photographs, drawings, letters, and other material will be treated as unconditionally assigned for publication and copyright purposes and are subject to Construction Equipment Guide’s unrestricted right to edit and comment editorially. Contributor articles do not necessarily reflect the policy or opinions of this publication.

Read our privacy policy here.
Mastodon