Model PC450-8R
Type Crawler Excavator
Weight Operation 43 320 - 43 740 kg
Bucket 1.30 - 2.80 m3
Engine Rated Powe 257 / 1 900 kW/rpm
Brand Komatsu
Country of Manufacture Japan
Location Viet Nam




Currently, motorized machines and especially excavators are an indispensable part in the field of civil, industrial and irrigation construction. In the market with many famous machine manufacturers such as Hitachi excavators, Catterpillar excavators, Kobelco excavators,... Besides, it would be remiss not to mention Komatsu crawler excavator PC450-8R.


Máy đào bánh xích Komatsu PC450-8R


Komatsu crawer excavator PC450-8R


Komatsu is the world's second largest supplier of construction and mining equipment, after Caterpillar. However, Komatsu has a larger market share than Caterpillar in some regions such as Japan and China. The company currently has many factories and branches in Japan, Asia, America and Europe and is still planning to continue to expand.


Komatsu excavator brand originated from Japan, appeared on the market since 1917. It can be said that this is one of the world's leading brands of excavators, currently competing fiercely with rivals. as big as Hitachi or Catterpillar. Komatsu excavator is considered as a machine with high durability, good working performance and common use. Perhaps that is also the reason why Vietnam and other countries around the world are very fond of the Komatsu line.


Komatsu excavators are specially designed for heavy duty applications. With a powerful engine, sturdy boom and bucket design, bearing iron material ensures workability and productivity in all cases. Along with compact structure and superior features, the company's machine can be widely applied such as: bridge construction, road construction, construction work in residential areas. The machine has many working modes with different engine speed and hydraulic system pressure to meet different conditions. In the fuel-saving mode, the machine still works effectively, in the heavy-duty mode, the machine can operate with the largest capacity, helping the digging and lifting force of the machine can be increased many times.


Below is the detailed product information of Komatsu crawler excavator PC450-8R:




Máy đào bánh xích Komatsu PC450-8R
Boom Length mm 7 060
Arm Length mm 3 380
A Overall length mm 12 040
B Length on ground (Transport) mm 6 560
C Overall height (To top of boom) mm 3 660
D Overall width mm 3 430
E Overall height (To top of cab) mm 3 285
F Ground clearance, counterweight mm 1 320
G Ground clearance (Minimum) mm 550
H Tail swing radius mm 3 645
I Track length on ground mm 4 020
J Track length mm 5 055
K Track gauge mm 2 740
L Width of crawler mm 3 340
M Shoe width mm 600
N Grouser height mm 37
O Machine cab height mm 2 920
P Machine cab width mm 3 165
Q Distance, swing center to rear end mm 3 605


Máy đào bánh xích Komatsu PC450-8R
Boom Length mm 7 060
Arm Length mm 3 380
A Max. digging height mm 10 925
B Max. dumping height mm 7 625
C Max. digging depth mm 7 790
D Max. vertical wall digging depth mm 6 600
E Max. digging reach (ground 2440 mm) mm 7 650
F Tầm với đào lớn nhất mm 12 005
F Max. digging reach at ground level mm 11 800
G Min. swing radius mm 4 805
SAE 1179 Rating    
Bucket digging force kN (kg) 243 (24 800)
Arm crowd force kN (kg) 225 (22 900)
SO 6015 Rating    
Bucket digging force kN (kg) 278 (28 300)
Arm crowd force kN (kg) 233 (23 800)




A: Reach from swing center


B: Bucket hook height


C: Lifting capacity


Cf: Rating over front


Cs: Rating over side


Rating at maximum reach

Máy đào bánh xích Komatsu PC450-8R
komatsu pc450-8R
* Load is limited by hydraulic capacity rather than tipping. Ratings are based on SAE J1097. Rated loads do not exceed 87% of hydraulic lift capacity or 75% of tipping load


Model Komatsu SAA6D125E-5
Type Water-cooled, 4-cycle, direct injection
Aspiration Turbocharged, and air-to-air aftercooled
Number of cylinders 6
SAE J1995, Gross kW 270 kW (362 HP) at 1 900 rpm
ISO 9249 / SAE J1349, Net kW 257 kW (257 HP) at 1 900 rpm
Fan drive method for radiator cooling Mechanical
Piston displacement l 11.04
Bore x Stroke mm 125 x 150
Governor All-speed control, electronic
Type HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load sensing valves and pressure compensated valves
Number of selectable working modes 4
Main pump Variable displacement piston type
Pumps for Boom, arm, bucket, swing, and travel circuits
Maximum flow l/min 690
Supply for control circuit Self-reducing valve
Hydraulic motors    
Travel 2 x axial piston motor with parking brake
Swing 1 x axial piston motor with swing holding brake
Relief valve setting    
Implement circuits MPa (kgf/cm2) 37.3 (380)
Swing circuit  MPa (kgf/cm2) 27.9 (285)
Travel circuit MPa (kgf/cm2) 37.3 (380)
Pilot circuit MPa (kgf/cm2) 3.2 (33)
Center frame X-frame
Track frame Box-section
Seal of track Sealed track
Track adjuster Hydraulic
Number of shoes (Each side) 46
Number of carrier rollers (Each side) 2
Number of track rollers (Each side) 7
Steering control Two levers with pedals
Drive method Hydrostatic
Maximum drawbar pull kN (kg) 330 (33 700)
Gradeability % (°) 70 ( 35 )
Maximum travel speed km/h

High: 5.5

Mid: 4.0

Low: 3.0

Service brake Hydraulic lock
Parking brake Mechanical disc brake
Fuel tank l 650
Coolant l 36
Engine  l 37
Final drive (Each side)  l 10.5
Swing drive l 20
Hydraulic tank l 248
Drive method Hydrostatic
Swing reduction Planetary gear
Swing circle lubrication Grease-bathed
Service brake Hydraulic lock
Holding brake/Swing lock Mechanical disc brake
Swing speed min-1 9.1


    Number Bore Stroke Rod Diameter
Boom mm 2 160 1 570 110
Std mm 1 185 1 985 130
SE mm 1 185 1 820 120
Std mm 1 160 1 270 110
SE mm 1 185 1 160 120


Shoe Type Shoe kg kPa (kgf / cm2)
  600 mm 43 320 80.7 (0.82)
  700 mm 43 740 69.9 (0.71)
Operating weight including 7060 mm one-piece boom, 3380 mm arm, ISO 7451 heaped 1.90 m3 bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.




Máy đào bánh xích Komatsu PC200-8MO






komatsu pc450-8r


Komatsu Technology


Komatsu develops and produces all major components, such as engines, electronics and hydraulic components, in house. With this “Komatsu Technology” and adding customer feedback, Komatsu is achieving great advancements in technology. To achieve both high levels of productivity and economical performance, Komatsu has developed the main components with a total control system. The result is a new generation of high performance and environment-friendly excavators.


High Power Komatsu SAA6D125E-5 Engine


The PC450-8R gets its exceptional power and work capacity from a Komatsu SAA6D125E-5 engine. Output is 257 kW 345 HP, providing increased hydraulic power and improved fuel efficiency. The SAA6D125E-5 engine is U.S. EPA Tier 2 and EU Stage 2 emissions equivalent. The SAA6D125E-5 engine adopts the electronically controlled Heavy Duty High Pressure Common Rail (HPCR) fuel injection system.


Low Operation Noise


Enables a low noise operation using the low-noise engine and methods to cut noise at source. Ambient noise meets the EU Stage 2 noise regulation


Excellent Machine Stability


Large counterweight offers superior machine stability and balance.


Idling Caution


To prevent unnecessary fuel consumption, an idling caution is displayed on the monitor, if the engine idles for 5 minutes or more.



ECO Gauge that Assists Energy-saving Operations


Equipped with the ECO gauge that can be recognized at a glance on the right of the multifunction color monitor for environmentfriendly energy-saving operations. Allows focus on operation in the green range with reduced CO2 emissions and efficient fuel consumption.


Working Modes Selectable


The PC450-8R excavator is equipped with six working modes (P, E, L, B, ATT mode). Each mode is designed to match engine speed and pump output to the application. This provides the fexibility to match equipment performance to the job at hand.


- P:  Maximum production/power, fast cycle times.


- E: Good cycle times, better fuel economy, adjustable in 4 stages.


- L: Suitable attachment speed


- B: Optimum engine rpm, hydraulic flow.


- ATT: Optimum engine rpm, hydraulic flow, 2 way


Large Digging Force


When press the left knob switch which is called the one-touch power max. switch and when it is kept pressed, this function temporarily increases digging force for 8.5 seconds of operation. Large Digging Force


- Maximum arm crowd force (ISO 6015): 218 kN (22.2 t) => 233 kN (23.8 t) (With Power Max.)


- Maximum bucket digging force (ISO 6015): 259 kN (26.4 t) => 278 kN (28.3 t) (With Power Max.)


Measured with Power Max. function, 3380 mm arm and ISO 6015 rating


Smooth Loading Operation


Two return hoses improve hydraulic performance. In the arm out function, a portion of the oil is returned directly to the tank providing smooth operation.


Two-mode Setting for Boom


Smooth mode provides easy operation for gathering blasted rock or scraping down operation. When maximum digging force is needed, switch to Power mode for more effective excavating.


- Boom floats upward, reducing lifting of machine front. This facilitates gathering blasted rock and scraping down operations.


- Boom pushing force is increased, ditch digging and box digging operation on hard ground are improved.


Variable Track Gauge (Optional)


- Lateral stability is significantly improved when operating with the gauge extended.


- Lateral stability is increased by 30% (Compared with the fixed gauge version).


- With trackframes retracted, overall width complies with many local transportation regulations.




komatsu pc450-8r


Máy đào bánh xích Komatsu PC200-8MO

Low-noise Cab


The newly-designed cab is highly rigid and has excellent sound absorption ability. Thorough improvement of noise source reduction and use of low noise engine, hydraulic equipment, and air conditioner allows this machine to generate a low level of noise similar to that of a passenger car.


Wide Newly-designed Cab


Newly-designed wide spacious cab includes seat with reclining backrest. The seat height and longitudinal inclination are easily adjusted using a pullup lever. You can set the appropriate operational posture of armrest together with the console. Reclining the seat further enables you to place it into the fully flat state with the headrest attached.


Low Vibration with Cab Damper Mounting


PC450-8R uses viscous damper mounting for cab that incorporates longer stroke and the addition of a spring. The new cab damper mounting combined with high rigidity deck aids vibration reduction at operator seat.


Pressurized Cab


A/C, air filter and a higher internal air pressure prevent external dust from entering the cab.


Automatic Air Conditioner (A/C) (Optional)


Enables you to easily and precisely set cab atmosphere with the instruments on the large LCD. The bi-level control function keeps the operator’s head and feet cool and warm respectively. This improved air flow function keeps the inside of the cab comfortable throughout the year. Defroster function keeps front glass clear


komatsu pc450-8r


ROPS Cab (ISO 12117-2)


The machine is equipped with a ROPS cab (ISO 12117-2) for excavators as standard equipment. The ROPS cab has high shock-absorption performance, featuring excellent durability and impact strength. It also satisfies the requirements of OPG top guard level 1 (ISO 10262) for falling objects. Combined with the retractable seat belt, The ROPS cab protects the operator in case of tipping over and against falling objects


Lock Lever


Locks the hydraulic pressure to prevent unintentional movement. Neutral start function allows machine to be started only in lock position.


Slip-resistant Plates


Highly durable slip-resistant plates maintain superior traction performance for the long term.


Rear View Monitor System (Optional)


The operator can view the rear of the machine with a color monitor screen.


Thermal and Fan Guards


Thermal and fan guards are placed around high-temperature parts of the engine and fan drive


Pump/engine Room Partition


Pump/engine room partition prevents oil from spraying onto the engine if a hydraulic hose should burst.


Large Serrated Steps and Handrail




komatsu pc450-8r


High Pressure In-line Filter


In-line filters are provided at outlet port (Pressure side) of each pump to protect hydraulic system contamination


Metal Guard Rings


Metal guard rings protect all the hydraulic cylinders and improve reliability


Sealed Connectors


Sealed connectors seal tight and have higher reliability


O-ring Face Seal


The hydraulic hose seal method has been changed from a conventional taper seal to an O-ring seal. This provides improved sealing performance


Water Separator


Removes water from the fuel and improves the reliability of fuel systems


Fuel Main-filter


The reliability of fuel systems is improved, because fuel main-filter removes contamination and sludge contained in fuel.




komatsu pc450-8r


Easy Access to Engine Oil Filter, Engine Main Fuel Filter and Fuel Drain Valve


Engine oil filter, engine main fuel filter and fuel drain valve are remote mounted to improve accessibility.


Electric Priming Pump


Bleeding air from fuel system is easily accomplished with the electric priming pum


Long-life Oil, Filter


Uses high-performance filtering materials and long-life oil. Extends the oil and filter replacement interval


- Engine oil & Engine oil filter every 500 hours.


- Hydraulic oil every 5000 hours.


- Hydraulic oil filter every 1000 hours


Large Capacity Air Cleaner


Large capacity air cleaner is comparable to that of larger machines. The larger air cleaner can extend air cleaner life during long-term operation and prevents early clogging and resulting power decrease. Reliability is improved by a new seal design.


Long Work Equipment Greasing Interval (Optional)


High quality bushings are optionally available for work equipment pins except arm top pin. All bushing lubrication intervals of work equipment except arm top bushings are 500 hours, reducing maintenance cost.


Large-size Steps


On both right and left track frames are fixed with wider steps for easier maintenance.


Large Fuel Tank Capacity


Large fuel tank capacity extends operating hours before refueling. Fuel tank is treated for rust prevention and improved corrosion resistance


Easy Radiator Cleaning


Since radiator and oil cooler are arranged side-by-side, it is easy to clean, remove and install them.




The PC450-8R is a specially designed for heavy-duty applications. The PC450-8R has strengthened work equipment and reinforced body parts for use in severe job sites such as quarry and gravel gathering, etc.


komatsu pc450-8r


komatsu pc350-8M0


PC450LC-8R SE spec. is equipped with a large reinforced Me bucket for quarrying work. It increases the efficiency of loading a dump truck with large amounts of loose materials such as blasted rock.


phụ kiện


Komatsu Genuine Attachment Tool


Komatsu-recommended attachment tools for hydraulic excavators. A wide range of attachment tools are provided to suit customers’ specific applications


Hydraulic breaker


The hydraulic breaker is an attachment tool used for crushing rock beds and paved surfaces, demolishing concrete structures, etc. The large gas chamber, ideal gas pressure ratio, and long-stroke piston deliver
a powerful impact force. Since the breaker unit does not require an accumulator, the number of parts has been reduced, resulting in lower maintenance costs.




This attachment tool is used for demolishing concrete structures. Since it does not have a striking mechanism and features low noise and low vibration, it is suitable for work in urban areas. The openclose cylinder is equipped with a speed-up valve for increasing work speed.




máy xúc lật Komatsu WA150-6


Komatsu Total Support


To keep your machine available and minimize operation cost when you need it, Komatsu Distributor is ready to provide a variety of supports before and after procuring the machine.


Technical support


Komatsu product support service (Technical support) is designed to help customer. Komatsu Distributor offers a variety of effective services to show how much Komatsu is dedicated to the maintenance and support of Komatsu machine.


- Preventive Maintenance (PM) clinic


- Oil & Wear analysis program


- Undercarriage inspection service, etc.


Fleet recommendation


Komatsu Distributor can study the customer’s job site and provide the most optimum fleet recommendation with detailed information to meet all of your application needs when you are considering to buy new machines or replace the existing ones from Komatsu.


Product support


Komatsu Distributor gives the proactive support and secures the quality of the machinery that will be delivered.


Parts availability


Komatsu Distributor is available for emergency inquiry by the customers for genuine, quality guaranteed Komatsu parts.


Repair & maintenance service


Komatsu Distributor offers quality repair and maintenance service to the customer, utilizing and promoting Komatsu developed programs.


Komatsu Reman (Remanufactured) components


Komatsu Reman products are the result of the implementation of the Komatsu global policy which establishes and agrees to reduce the owning, operating and total Life Cycle Costs (LCC) to Komatsu’s customer through high quality, prompt delivery and competitively priced in own remanufactured products (QDC).




The Komatsu remote monitoring and management technology provides insightful data about your equipment and fleet in user-friendly format.


Máy đào bánh xích Komatsu PC200-8MO


Energy Saving Operation Report


KOMTRAX delivers the energy-saving operation report based on the operating information such as fuel consumption, load summary and idling time, which helps you efficiently run a business.


Equipment Management Support


Through the web application, a variety of search parameters are available to quickly find information about specific machines based on key factors. Moreover, KOMTRAX finds out machines with problems from your fleet and shows you through an optimal interface.


dịch vụ komatsu


Optimal Strategy for Efficient Work


The detailed information that KOMTRAX puts at your fingertips helps you manage your fleet conveniently on the web anytime, anywhere. It gives you the power to make better daily and long-term strategic decisions.



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