PC450 PC450LC - Komatsu Ltd.

1 SPECIAL PURPOSE BUCKET OPTIONAL EQUIPMENTSTANDARD and specifications are subject to change without a trademark of Komatsu Ltd. in Japan 200807 (10) Alternator, 50 Ampere, 24V Anti-slip plates Auto-decel Automatic engine warm-up system Batteries, 110 Ah/2 x 12V Boom holding valve Cab, capable OPG (OPG) with optionalbolt-on top guard Corrosion resistor Counterweight, 9220kg20,330lb Dry type air cleaner, double element Electric horn Engine, Komatsu SAA6D125E-5 Engine overheat prevention system Fan guard structure Fuel pre- filter (with water separator) Hydraulic track adjusters (each side) Long lubricating intervals for implement bushings Multi-function color monitor Power maximizing system PPC hydraulic control system Radiator & oil cooler dust proof net Rear reflector Rear view mirror (RH, LH)

2 Seat belt, retractable Track roller guards (full length) Track roller PC450 -8, 7 each side PC450LC -8, 8 each side Track shoe PC450 -8, 600 mm24" triple grouser PC450LC -8, 600 mm24" triple grouser Travel alarm Two settings for boom Working light, 2 (boom and RH) Working mode selection system Air conditioner with defroster, hot & cool box Alternator, 60 ampere, 24 V Arm, 3380 mm11'1" arm assembly Batteries, 140 Ah/2 x 12 V Bolt-on top guard, (Operator ProtectiveGuards level 2 (OPG)) Boom, 7060 mm23'2" Cab accessories Rain visor Sun visor Cab front guard Full height guard Half height guard Heater with defroster Rear view mirror (rear and sidewise) Rear view monitoring system Seat, suspension Service valve Seat, suspension with heater Shoes, triple grouser shoes PC450 -8700 mm28" PC450LC -8700 mm28" Track frame undercover Variable track gauge Working lights (2 on cab) Ripper bucketfor hard and rock ground CapacitySAE yd3 CECE heaped yd3 Width 1250 mm " Single-shank ripperis recommended forrock-digging and crushing, hard soil digging, pavement removal works, may include optional HORSEPOWERG ross: 270 kW362 HP @ 1900 rpm Net: 257 kW345 HP @ 1900 rpm OPERATING WEIGHTPC450-8: 43320 43740 kg95,500 96,430 lbPC450LC-8.

3 44320 44770 kg97,710 98,700 lbHYDRAULIC EXCAVATOR3 Photo may include optional Maintenance Long replacement interval of engine oil,engine oil filter , hydraulic oil andhydraulic filter . Equipped with fuel pre- filter as standard(with water separator) Side-by-side radiator and oil cooler configuration enables independent removaland installation of those two components. Equipped with the EMMS monitoring system. Easy access to engine oil filter and fueldrain valve Large fuel tank capacity High pressure in-line filterSee page and Economy Features Low emission engineA powerful turbocharged and air to air aftercooled Komatsu SAA6D125E-5engine provides 257 kW 345 HP. This engine meets EPA Tier 3 and EU Stage 3 Aemission regulations, without sacrificing power or machine productivity.

4 Economy mode saves fuel consumption. Low operation noise See pages 4 and 5. High Production and Low Fuel ConsumptionHigh power, working performance andfuel efficiency improve production andfuel costs. Excellent Machine Stability Large counterweight offers superiormachine stability and balance. Large Digging Force Pressing the Power Max function button temporarily increases the digging force 7%. Two-mode Setting for Boom Switch selection allows either powerfuldigging or smooth boom page FeaturesWALK-AROUNDHYDRAULIC EXCAVATORHYDRAULIC EXCAVATORPC450-8PC450-80 Large Comfortable Cab Low-noise cab Low vibration with cab damper mounting Highly pressurized cab with optional air conditioner Operator seat and console with armrest that enables operations in the appropriate operational page : 270 kW362 HP @ 1900 rpmNet: 257 kW345 HP @ 1900 rpmOPERATING WEIGHTPC450-8: 43320 43740 kg 95,500 96,430 lbPC450LC-8.

5 44320 44770 kg 97,710 98,700 lbBUCKET yd3 Variable Track Gauge (optional) Greatly increases lateral stability Compliant with transportation regulationsSee page BucketQuarry Cab StrengthenedRevolving Framewith Deck GuardFull Roller Guards and Double-flange Track RollersHeavy-duty ArmHeavy-duty BoomSafety Design Cab dedicated to hydraulic excavator for protecting the operator in the event of machine of a rolls over accident. Anti-slip plates for safe work on machine Rear view monitoring system for easy checking behind the machine (optional)See page TFT LCD Monitor Easy-to-see and use 7" largemulti-function color monitor Can be displayed in 12 languagesfor global F T : Thin Film TransistorLCD : Liquid Crystal DisplaySee page & ECOLOGYFEATURESE nvironment-friendly Clean EngineThe PC450 -8 gets its exceptional power and work capacityfrom a Komatsu SAA6D125E-5 engine.

6 Output is 257 kW345 HP, providing increased hydraulic power and improvedfuel SAA6D125E-5 engine meets EPA Tier 3 and EUStage 3A emission regulations with NOx emission reducedby 40%.The SAA6D125E-5 engine adopts the electronically controlled Heavy Duty HPCR* fuel injection system andcooled EGR system with electronically controlled bypass-assist type venturi.*HPCR : High Pressure Common RailLow Operation NoiseEnables a low noise operation using the low-noise engineand methods to cut noise at source. Ambient noise meetsthe EU Stage 2 noise control unit for engineHydraulic system controllerHydraulic control valveMain pumpSeven-inch TFT liquid crystal displayEngineHeavy duty HPCR (High Pressure Common Rail) systemElectronically controlled cooledEGR systemKomatsu TechnologyKomatsu develops and produces all majorcomponents, such as engines, electronicsand hydraulic components, in this Komatsu Technology, and addingcustomer feedback, Komatsu is achievinggreat advancements in achieve both high levels of productivity and economical performance, Komatsu hasdeveloped the main components with a totalcontrol system.

7 The result is a new genera-tion of high performance and environmentfriendly Digging ForceWith the one-touch Power Max. function digging force hasbeen further increased. ( seconds of operation)Maximum arm crowd force (ISO):218 kN ( )233 kN ( )(with Power Max.)Maximum bucket digging force (ISO):259 kN ( )278 kN ( )(with Power Max.)*Measured with Power Max function, 3380 mm11'1" arm and ISO rating7%UP7%UPLarge counterweight offers superior machine stability and Machine StabilityHYDRAULIC EXCAVATORPC450-80 HYDRAULIC EXCAVATORPC450-8 Working Modes SelectableTwo established work modes are further mode Power orwork priority mode haslow fuel consumption,but fast equipmentspeed and maximumproduction and powerare mode Economy orfuel priority mode further reduces fuelconsumption, butmaintains the P-mode-like working equipment speed for lightduty can select Power or Economy modes using a one-touchoperation on the monitor panel depending on priorityE modeWork priorityP modeIdling Caution To prevent unnecessaryfuel consumption, an idlingcaution is displayed on themonitor.

8 If the engine idlesfor 5 minutes or that Assists Energy-saving Operations Equipped with the Eco-gauge that can be recognized at aglance on the right of the multi-function color monitor forenvironment-friendlyenergy-saving opera-tions. Allows focus onoperation in the greenrange with reduced CO2emissions and efficientfuel Loading OperationTwo return hoses improvehydraulic performance. In the armout function, a portion of the oil isreturned directly to the tank providing smooth floats upward, reducing lifting of machine front. This facilitates gathering blasted rockand scraping down pushing force isincreased, ditch digging andbox digging operation on hardground are Setting for BoomSmooth mode provides easy operation for gathering blastedrock or scraping down operation. When maximum diggingforce is needed, switch to Power mode for more modePower modeReturn hosesVariable Track Gauge (optional) Lateral stability is significantly improved when operatingwith the gauge extended.

9 Lateral stability is increased by 30% (compared with thefixed gauge version). With trackframes retracted, overall width complies withmany local transportation and Fan GuardsThermal and fan guards areplaced around high-temperature parts of theengine and fan ENVIRONMENTHYDRAULIC EXCAVATORPC450-80 HYDRAULIC EXCAVATORPC450-8 Large Serrated StepsLarge HandrailLock LeverLocks the hydraulicpressure to preventunintentional move-ment. Neutral startfunction allowsmachine to be startedonly in lock Cab Noise The newly-designed cab is highly rigidand has excellent sound absorptionability. Thorough improvement of noisesource reduction and use of low noiseengine, hydraulic equipment, and airconditioner allows this machine togenerate a low level of Vibration with Cab DamperMountingPC450-8 uses viscous damper mount-ing for cab that incorporates longerstroke and the addition of a new cab damper mounting combined with high rigidity deck aidsvibration reduction at operator Newly-designed CabNewly-designed wide spacious cabincludes seat with reclining seat height and longitudinal incli-nation are easily adjusted using a pull-up lever.

10 You can set the appropriateoperational posture of armrest togetherwith the the seat further enables youto place it into the fully flat state withthe headrest CabOptional air conditioner, air filter and ahigher internal air pressure (+ mmAq+ "Aq) prevent external dustfrom entering the Air Conditioner(optional)Enables youto easily andprecisely setcab atmos-phere withthe instru-ments on the large bi-level control function keeps theoperator's head and feet cool andwarm respectively. This improved airflow function keeps the inside of thecab comfortable throughout the function keeps front FeaturesRubberSilicon OilSpringAnti-slip PlatesHighly durable anti-slip plates maintain superiortraction performance for the long Dedicated to Hydraulic Excavator The cab is designed specifically for hydraulic excavators andgains reinforced strength from the pipe-structured cab frame-work.