PC450-8R

ABOUT THE NEW GENERATION OF KOMATSU CRAWLER EXCAVATOR

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.

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:

TECHNICAL DATA

DIMENSIONS
		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

WORKING RANGE
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)

LIFTING CAPACITY WITH LIFTING MODE A: Reach from swing center B: Bucket hook height C: Lifting capacity Cf: Rating over front Cs: Rating over side Rating at maximum reach

* 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

EQUIPMENTS

OPTIONS

HIGHLIGHTS

ECOLOGY, ECONOMY & PRODUCTIVITY

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.

COMFORT WITH KOMATSU PC450-8R

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

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

RELIABILITY & DURABILITY

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.

MAINTENANCE

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.

SPECIAL SPECS

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.

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.

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.

Crusher

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.

KOMATSU TOTAL SUPPORT

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).

KOMTRAX

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

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.

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.