PC45MR-5M Komatsu excavator specs & dimensions (2017 - 2019)

Komatsu PC45MR-5M is a mini excavator manufactured from 2017 to 2019. It has a weight of 4.95 tons and a track width of 400 mm. Th…

Komatsu PC45MR-5M is a mini excavator manufactured from 2017 to 2019. It has a weight of 4.95 tons and a track width of 400 mm. The transport dimensions are 5.22 meters in length, 1.96 meters in width, and 2.59 meters in height. The machine features a tear-out force of 33.9 kN, a dredging depth of 3.3 meters, and a maximum horizontal reach of 5.575 meters. The bucket capacity ranges from 0.055 m³ to 0.16 m³. Special equipment includes a blade and rubber tracks.

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PC45MR-5M

Years of manufacture: 2017—2019

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Technical specs - PC45MR-5M Komatsu

Specification

Notice: Every data listed is verified by LECTURA Specs team experts. However, incomplete data and mistakes might occur. Contact our team with any change suggestion.

Weight: 4.95 t

Transport length: 5.22 m

Transport width: 1.96 m

Transport height: 2.59 m

Bucket capacity: 0.16 m³

Bucket capacity min.: 0.055 m³

Bucket capacity max.: 0.16 m³

Track width: 400 mm

Max. Reach horizontal: 5.575 m

Dredging depth: 3.3 m

Tear-out force: 33.9 kN

Model series: PC

Engine manuf.: Komatsu

Engine type: 4D88E-6

Engine power: 29.5 kW

Displacement: 2.18 l

Revolutions at max torque: 1440 rpm

Max. torque: 137 Nm

No. of cylinders: 4

Cylinder bore x stroke: 88x90 mm

Emission level: IIIA

More technical details, like: bucket width, standard tyres, driver protection, dimension lxwxh are available in the full technical specs.

Basic model with standard bucket

Special equipment

Track adjustment: No
Rubber track: Yes
Blade: Yes
Aircondition: No
Quick hitch hydr.: No
Quick hitch mech.: No

Download datasheets (PDF)

Komatsu PC45MR-5M FAQ

When was the Komatsu PC45MR-5M manufactured?

The Komatsu PC45MR-5M was manufactured from 2017 to 2019.

How much does the Komatsu PC45MR-5M weigh?

The Komatsu PC45MR-5M weighs 4.95 tons.

What are the transport dimensions of the Komatsu PC45MR-5M mini excavator?

The Komatsu PC45MR-5M has a transport length of 5.22 meters, a transport width of 1.96 meters, and a transport height of 2.59 meters.

What is the track width of the Komatsu PC45MR-5M's undercarriage?

The Komatsu PC45MR-5M has a track width of 400 mm.

What are the excavation performance specifications of the Komatsu PC45MR-5M?

The Komatsu PC45MR-5M has a dredging depth of 3.3 meters and a maximum horizontal reach of 5.575 meters.

What is the tear-out force of the Komatsu PC45MR-5M?

The Komatsu PC45MR-5M has a tear-out force of 33.9 kN.

What are the bucket capacity specifications of the Komatsu PC45MR-5M mini excavator?

The Komatsu PC45MR-5M has a bucket capacity of 0.16 cubic meters, with a maximum capacity of 0.16 cubic meters and a minimum capacity of 0.06 cubic meters.

How much is a Komatsu PC45MR-5M Mini excavator (2017u20132019) worth?

The residual value of the Komatsu PC45MR-5M depends on the machine's individual parameters. Visit the LECTURA Valuation to check it.

Komatsu PC45MR-5M overview

Komatsu PC45MR-5M features overview

Maximized Efficiency
Powertilt option (PC55MR-5), Many configurations for the job at hand.
Work in tight spaces
The new PC45/55MR-5 short tail delivers optimum performance and digging speed, even in confined spaces where traditional machines can't work: yards, road works, demolition sites, sewerage etc. Rugged and very stable it guarantees maximum safety and offers complete operator confidence in any working conditions.
Customisation
Many configurations are available so that you can choose the perfect machine for use: long or short arm, rubber, steel or roadliner shoes. The 1 / 2 way auxiliary hydraulic circuit allows to use a wide range of work tools such as a hammer, clamshell bucket, etc.
Powertilt option (PC55MR-5)
The machine features special piping for power tilt operation and a hydraulic quick coupler line with one effect. Powertilt installation enhances the versatility of the machine through a flexible tool proven reliability. Piping is routed over the arm for better protection and long-term design.

Engine / Driveline and transmission

Powerful and Environmentally Friendly
Komatsu fuel saving technology, 6 selectable working modes, auto retardation and idle shutdown, Dial type fuel control.
Komatsu CLSS
The CLSS (Closed Center Load Sensing System) hydraulic circuit guarantees power, speed and perfect control for all movements, including simultaneous. Combining the variable displacement pump and CLSS allows operators to perform all required movements with maximum efficiency regardless of load or RPM.
6 working modes
Depending on the load, operators can conveniently choose between 6 working modes matched to engine rpm, pump delivery and system pressure. Priority can be given either to speed, for greater productivity or fuel consumption for lighter applications.
Electronic control system
Fuel consumption on the PC45/55MR-5 is up to 5% lower. Engine and hydraulic system are optimally controlled according to operating conditions. Hydraulic loss reductions also help reduce fuel consumption as well as environmental impact.
Auto deceleration and auto idle shutdown
Both functions are available as standard. Auto deceleration automatically reduces engine rpm for a few seconds after the work equipment lever is moved to neutral position. Automatic idle shutdown automatically stops the engine after a predetermined time to reduce unnecessary fuel consumption.
Perfect operator convenience
Proportional controls are fitted as standard for safe and precise operation of attachments. Dial type fuel control makes operation and engine speed adjustment simple. The automatic travel speed shift function allows smooth and efficient operation. Pressing a rpm selector button on the blade lever chooses auto 2-speed or fixed 1st speed travel for easy shifting during blade operation. A 12-volt power port is also included in the cab.

Hydraulics

Easier repairs
ORFS hydraulic canopy seal connectors and DT electrical plug increase machine reliability, making repairs faster and easier. High durability bushings and a 500 hour engine oil change interval further reduce operating costs.

Environment

An optimal work environment
Despite its compact size, the PC45/55MR-5 offers unparalleled comfort. The spacious cab has been designed with exceptional care for details, and the working environment is quiet and comfortable. Special attention is given to the operator: ergonomic and dedicated PPC controls as well as optional efficient air conditioning and ventilation system ensuring optimum thermal comfort. A much larger cabin door greatly facilitates cab access.

Tyres / Tracks

X-frame
The X-frame ensures maximum stress resistance and optimum stress distribution. Its shape makes the machine much stiffer and more reliable. In addition, it facilitates regular undercarriage cleaning process and spoiling process.
Smallest swing radius
The extra-small swing radius with minimal rear heading from the tracks (60 mm for PC45MR-5 and 140 mm for PC55MR-5) allows the operator to concentrate on working in confined areas.

Dimensions and weight

Type	Komatsu CLSS
Main pump	2 × variable displacement pump
Maximum pump flow,"53,5	× 2 + 33,8 + 12 l/min"
Max. operating pressure			26	5 MPa (265 bar)"
Hydraulic motors
Travel	2	× variable displacement motor
Swing		1 ×	fixed displacement motor
Hydraulic cylinders (bore × stroke)
Boom					90 × 691 mm
Arm
PC45MR-5M0				80 × 649 mm
PC55MR-5M0					85 × 733 mm
Bucket
PC45MR-5M0					70 × 580 mm
PC55MR-5M0					75 × 580 mm
Boom swing
PC45MR-5M0				90 × 630 mm
PC55MR-5M0					95 × 630 mm
Blade					110 × 140 mm
Bucket digging force (ISO 6015)
PC45MR-5M0					3.390 daN (3.460 kg)
PC55MR-5M0					3.900 daN (3.980 kg)
Arm crowd force (ISO 6015)
PC45MR-5M0
1.375 mm arm				2.160 daN (2.220 kg)
1.770 mm arm				2.010 daN (2.050 kg)
PC55MR-5M0
1.640 mm arm			2.392 daN (2.440 kg)
2.000 mm arm		2.226 daN (2.270 kg)

Boom length	mm	2.640		2.900
Arm length	mm	1.375 1.770	1.640	2.000
A Overall length	mm	5.220 5.300	5.550	5.615
B Overall height	mm	2.590		2.590
C Overall width	mm	1.960		1.960
D Clearance under counterweight	mm	610		610
E Ground clearance	mm	290		290
F Tail swing radius	mm	1.040	1.120
G Track length on ground	mm	2.000		2.000
H Track length	mm	2.520		2.520
I Track gauge	mm	1.560		1.560
J Shoe width	mm	400		400
K Overall width of upper structure	mm	1.835		1.835
L Distance	swing center to rear end"	mm	1.265	1.265
M/N Boom swing angle	°	85 / 50	85 / 50
O Boom offset LH	mm	630		630
P Boom offset RH	mm	880	880
Q Max. digging height	mm	5.500 5.780	5.915	6.180
R Max. dumping height	mm	3.775 4.060	4.200	4.470
S Max. digging depth	mm	3.300 3.705	3.770	4.130
T Max. vertical wall digging depth	mm	2.730 3.145	3.030	3.380
U Max. digging reach	mm	5.735 6.130	6.220	6.570
V Max. digging reach at ground level	mm	5.575 5.980	6.075	6.435
W Min. swing radius	mm	2.290 2.410	2.285	2.390
Min. swing radius at boom swing	mm	1.760 1.860	1.760	1.855

Other features

First-Class Comfort
Newly designed cab, Improved ease of use, multi-function monitor with high resolution 3.5 LCD colour display, Multiple accessories around the operator's seat.
Easy Maintenance
Tilting cab, wide-opening engine hood, maintenance information displayed on the
New multi-function monitor with more Information
A high-resolution 3.5 LCD monitor provides excellent visibility. Less affected is the HighDefinition LCD panel through the viewing angle and surrounding brightness, ensuring excellent visibility. Various alerts and machine information are displayed in a simple format.
Tilting cab
The wide-opening engine hoods provide quick access to the daily inspection points. The fuel and hydraulic oil tanks are located under the side bonnet, in a safe and easily accessible position. In addition, the cab tilts back for vital maintenance tasks without any problems.
Maintenance monitoring
Maintenance and service activities are tracked on the monitor. When time falls below 30 hours before a maintenance interval, a maintenance reminder light is displayed on the display.

Safety

Safety First
neutral position detection system, engine emergency brake switch, seat belt safety indicator, Large transport locking points.

Tables

	PC45MR-5M0	PC55MR-5M0
Rubber shoes	4.950 kg	5.280 kg
Roadliner shoes	5.020 kg	5.350 kg
Steel shoes	5.020 kg	5.350 kg

Fuel tank	65 l
Radiator	8	8 l"
Engine oil (refill)	7	5 l"
Hydraulic system	55 l

Model	Komatsu 4D88E-6
Type	Water-cooled	4-cycle direct injection"
Engine power
at rated engine speed	2.400 rpm
ISO 14396	29	5 kW / 39	6 HP"
ISO 9249 (net engine power)	28	5 kW / 38	2 HP"
No. of cylinders	4
Bore × stroke	88 × 90 mm
Displacement	2.189 cm³
Max. torque / engine speed	137 Nm / 1.440 rpm
Air filter type	Dry

Type	Electro-welded	single unit structure"
Width × height	1.960 × 355 mm
Blade	max. lifting height"	430 mm
Blade	max. digging depth"	330 mm

Construction	X-frame centre section with box section track frames
Rollers
Track rollers (each side)	4
Carrier rollers (each side)	1
Shoe width	400 mm
Ground pressure (standard)	0	28 kg/cm²"

Drive method	Hydrostatic
Hydraulic motors	2 × axial piston motor
Reduction system	Planetary gear
Max. travel speeds
Lo / Hi	2	6 / 4	6 km/h"
Maximum drawbar pull	4.200 daN (4.280 kgf)

Arm length,,Max.,"4,0 m	3,0 m	2,0 m"
B
1.640 mm	4	0 m kg"	810	750	770	770
3	0 m kg"	830	570	780	780
2	0 m"	kg	870	490	960	810	1.170	1.170
1	0 m"	kg	920	460	1.220	760	1.830	1.170
0	0 m"	kg	980	460	1.420	720	2.230	1.090	1.270	1.270
1	0 m -"	kg	1.050	510	1.480	700	2.270	1.070	2.450	2.070
2.000 mm	4	0 m"	kg	720	620	600	600
3	0 m"	kg	740	490	630	630
2	0 m"	kg	750	430	820	810
1	0 m"	kg	800	400	1.090	760	1.570	1.190
0	0 m"	kg	870	400	1.330	710	2.090	1.090	1.320	1.320
1	0 m -"	kg	930	430	1.450	680	2.250	1.050	2.150	2.020

Arm length,A,Max.,"4,0 m	3,0 m	2,0 m"
B

1.375 mm	4	0 m kg"	950	890
3	0 m"	kg	930	640	920	740
2	0 m"	kg	930	510	1.060	720	1.240	1.160
1	0 m"	kg	1.010	480	1.300	680	1.900	1.060
0	0 m"	kg	1.150	480	1.480	650	2.300	1.000	1.210	1.210
1	0 m -"	kg	1.250	550	1.500	640	2.310	980	2.510	1.900
1.770 mm	4	0 m"	kg	780	690	770	750
3	0 m"	kg	710	520	730	730
2	0 m"	kg	700	440	890	730
1	0 m"	kg	750	410	1.160	680	1.620	1.080
0	0 m"	kg	860	410	1.400	640	2.160	990	1.250	1.250
1	0 m -"	kg	1.080	460	1.500	620	2.320	960	2.100	1.850

Arm length,A,Max.,"4,0 m	3,0 m	2,0 m"
B

1.640 mm with Powertilt	4	0 m"	kg	500	640
3	0 m"	kg	460	650
2	0 m"	kg	380	700	990
1	0 m"	kg	360	670	960
0	0 m"	kg	380	620	920
1	0 m –"	kg	400	610	920	970

WORK EQUIPMENT
Boom
Blade
1.375 mm digging arm (PC45MR-5)
1.640 mm digging arm (PC55MR-5)
Boom cylinder protection guard
Protection for boom safety valve
1.770 mm digging arm (PC45MR-5)
2.000 mm digging arm (PC55MR-5)

Travel acoustic alarm
Electric horn
Rear-view mirrors (left and right side	right rear)"
Hose burst valves on boom and arm cylinders
Overload warning device
Emergency engine stop switch
Neutral position detection system
Seat belt caution indicator
Bucket linkage with lifting eye
Blade cylinder safety valve

Working light on boom
Two front working lights on cab
Rear working light on cab
Rotating beacon

belt
Monitor panel 3	5” colour display"
12 Volt power supply
Beverage holder and magazine rack
Air conditioning
Radio equipment + radio	O

SERVICE AND MAINTENANCE
Multi-function video compatible colour monitor with Equipment Management and Monitoring
System (EMMS) and efficiency guidance
Battery main switch
KOMTRAX – Komatsu wireless monitoring system (3G)

Events

Visit Komatsu live at

SteinExpo 2026

Homberg/Nieder-Ofleiden, Germany

September 2 — 5

NordBau 2026

Holstenhallen Neumünster, Germany

September 9 — 13

Machine inspection

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Use this service to minimise the risk when buying used equipment. An inspection by Mevas costs less than repairing a defective hydraulic cylinder.

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Weight:: 4.95 t

Transport length:: 5.22 m

Transport width:: 1.96 m

Transport height:: 2.59 m

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News

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