PC228US PC228USLC - 小松製作所

1 And specifications are subject to change without a trademark of Komatsu Ltd. in Japan 201309 may include optional may include optional EX C AVATO RFLYWHEEL HORSEPOWERG ross: 116 kW155 HP @ 2000 rpm Net: 110 kW148 HP @ 2000 rpm OPERATING WEIGHTPC228US-8: 21900 22530 kg48,280 49,670 lbPC228 USLC-8: 22830 23380 kg50,330 51,540 lb2 Productivity Features Fuel-saving TechnologyPC228US-8 introduces new engine and hydraulic pumpcontrol technology. High StabilityThe PC228US -8 offers exceptional lifting capacity andhigh stability with a large counterweight. Mode SelectionFive working modes are designed to match engine speed,pump delivery and system pressure to the page may include optional EXCAVATORHYDRAULIC EXCAVATORPC228US-8PC228US-80 HORSEPOWERG ross: 116 kW155 HP @ 2000 rpmNet: 110 kW148 HP @ 2000 rpmOPERATING WEIGHTPC228US-8: 21900 22530 kg 48,280 49,670 lbPC228 USLC-8: 22830 23380 kg 50,330 31,540 lbBUCKET yd3 Komatsu s PC228US -8 Series Hydraulic Excavators have a short tailswing profile, designed specifically for work in confined areas.

2 By reducing tail swing, thePC228US-8 can work in areas where conventional profile excavators would pose a safety and Economy Features Low Emission EngineA powerful, turbocharged and air-to-air aftercooled Komatsu SAA6D107E-1provides 110 kW148 HP. This engine is EPA Tier 3 and EU Stage 3 Aemissions certified, without sacrificing power or machine productivity. Economy Mode improves Fuel Consumption Low Operation NoiseThe reduced dynamic noise provides low page Structure Features Slip resistant surfaces forimproved foot traction Rear view monitoring system(optional)See page Features Small Tail Swing Excellent operation in tight quarters with small tail swing radius design Round profile provides short protrusion of front and rear portion of theupper structure. Occupies small range for operation on narrow pages 6 and Comfortable Cab Low noise cab design withviscous cab mounting Sliding convex door allows easyentrance in confined areas. Large cab improves page Maintenance Long replacement interval of hydraulic oil and hydraulic filter Remote mounted engine oil filter and fuel drain valve for easy access Equipped with the fuel pre-filter as standard (with water separator) Side-by-side cooling concept enables individual cooling modules to be serviced.

3 Equipped with the Equipment Management Monitoring System (EMMS) See pages 10 and TFT LCDM onitor Easy-to-see and use 7" largemulti-function color monitor Can be displayed in 12languages for F T : Thin Film TransistorLCD : Liquid Crystal DisplaySee page 11. Wide Working RangesJob sites that require a long upper reach,such as demolition and slope cutting alsobenefit from the wide digging and dumpingranges of the page TechnologyKomatsu develops and produces all majorcomponents in house such as engines,electronics and hydraulic Komatsu Technology , andcustomer feedback, Komatsu is achievinggreat advancements in achieve both high levels of productivityand economical performance, Komatsuhas developed the main components witha total control system. The result is a newgeneration of high performance andenvironment-friendly & ECOLOGYFEATURESHYDRAULIC EXCAVATORE lectronic control unit for engineHydraulic system controllerEngineHeavy duty HPCR (High Pressure Common Rail) systemHydraulic control valveFlow divide/merge control with EPCMain pumpTwo pump independent controlSeven-inch TFT liquid crystal display5 Low Operation NoiseEnables low noise operation using the low-noise engine and methods to cut noise at controlledcommon rail type engine Multi-staged injection Highly-rigid cylinder blockLow noise design Optimal arrangement of sound absorbing materials Partition between the cab and engine room Airtight valve roomHYDRAULIC EXCAVATORPC228US-8PC228US-80 Eco-gauge that Assists Energy-saving Operations The Eco-gauge on the right side of the multi-function colormonitor provides environment-friendly energy-savingoperation.

4 Focus on operation in the green range allowsreduction of CO2emissions and efficient fuel Caution To prevent unnecessaryfuel consumption, an idlingcaution is displayed on themonitor, if the engine idlesfor 5 minutes or Emission EngineKomatsu SAA6D107E-1 engine is EPATier 3 and EU Stage 3A emissionscertified, without sacrificing power ormachine Fuel ConsumptionThe newly-developed KomatsuSAA6D107E-1 [ecot3] engine enablesNOx emissions to be significantlyreduced with the accurate multi-stagedfuel injection by the engine controller. Itimproves total engine durability usingthe high-pressure fuel injection systemdeveloped specifically for constructionmachinery. This excavator significantlyreduces hourly fuel consumption usingthe highly-efficient matching techniquesof the engine and hydraulic unit andalso provides features that promoteenergy-saving operations such as the Emode and Eco-gauge. Fuel-saving TechnologyNew technology of Engine and Pump control PC228US -8 introduces new technology of Engine andHydraulic Pump control, providing further fuel savings withsuffcient oil flow at lower Engine ModeApplicationAdvantagePower mode Maximum production/powerP Fast cycle timesEEconomy Good cycle timesmode Better fuel economyLLifting mode Suitable attachment speedBreaker Optimum engine rpm,Bmodehydraulic flowAttachment Optimum engine rpm,ATTmodehydraulic flow, 2wayWorking Modes SelectableThe PC228US -8 excavator is equipped with five workingmodes (P, E, L, B and ATT mode).

5 Each mode is designed tomatch engine speed and pump output to the application. Thisprovides the flexibility to match equipment performance tothe job at hand. Large Digging ForceThe machine has a digging force equal to that of , the operator can increase the power by 8 %using single-touch power increase function when requiringan extra StabilityThe PC228US -8 offers exceptional lifting capacity and highstability with a large cast-iron priorityE modeWork priorityP modeLL modeBB modeAT TATT modeLogging and forest roadworkSince the protrusion of the rear portion of the upperstructure is kept minimal, there is less possibility of thecounterweight hitting against atree or a slope, allowing theoperator to operate themachine at ease. Furthermore,large digging height facilitatesslope finishing work. Largedrawbar pull assures smooth and powerfultraveling even on machine needs less working space and can performefficient demolition work since it has large and ampledigging road width4 m 13'1"Wide Working RangesWide angle of PC228US -8 boom operation enhancesoverall working sites that require a long upper reach, such asdemolition and slope cutting, also benefit from thewide digging and dumping ranges of the Operation with Small Tail Swing Even in Confined AreasOPERATION FEATURESHYDRAULIC EXCAVATORHYDRAULIC EXCAVATORPC228US-8PC228US-80PC228US-8PC2 00-8PC228US-8PC228US-810700 mm 35 1"6620 mm 21 9"Max.

6 Digging depthMax. digging heightPC228US-89875 mm 32 5"Max. digging reachRoadworkWhen performing roadwork, protrusion of the machine into theunoccupied lane is kept minimal since the rear portion of theupper structure protrudes slightly from the track at swing. Thisallows a dump truck to be positioned closer to the track of themachine. The operator is able to load materials efficiently ontothe front of the dump body at ease since ample dumping reachis assured for the loading. Large working space is not requiredfor the Profile of both Front and Rear Portion of theUpper StructureKomatsu hydraulic excavators with short tail swing radius designadopt the round profile for both left and right corners of the frontportion of the upper structure as well as its rear portion that featuresless protrusion from the track at swing. The round profile designcontributes to the prevention of contact accident at swing and allowsthe machine to work in tight quarters or job sites where there are some digging height10700 mm9500 mm35'1"31'2"Maximum digging depth6620 mm5380 mm21'9"17'8"Maximum dumping height7825 mm6630 mm25'8"21'9"7 Photo may include optional Implement SwingRadius:2310 mm7'7" Boom raisingangle of the PC228US -8 is largerthan the PC200-8, while frontimplement protrusion is Tail Swing Radius.

7 1680 mm5'6" Because the tailof the PC228US -8 is morecompact than conventionalmodels, the PC228US -8 reducesthe operator s need to checkbehind him for swing mm 13'1"Minimum implementswing radius2310 mm 7'7"Tail swing radius1680 mm 5'6"Reducedtail swingradius1070 mm3'6"Reducedimplementswingradius730 mm2'5"Lane m 3990 mm13'1" 525 mm 330 mm 89 WORKING ENVIRONMENTHYDRAULIC EXCAVATORHYDRAULIC EXCAVATORPC228US-8PC228US-80 Automatic Air Conditioner The automatic air conditioner uses abi-level control function to keep theoperator's head and feet cool andwarm respectively. This improved airflow function keeps the inside of thecab comfortable throughout the function keeps cab glass Convex DoorThe sliding convex door provides easyentrance in confined areas. Large Cab Large cab provides ample operationspace. The cab has wide doorway foreasy cab interior is spacious and provides a comfortable ComfortableCabMulti-position ControlsThe multi-position, PPC (pressureproportional control) levers allow theoperator to work in comfort whilemaintaining precise control.

8 A double-slide mechanism allows theseat and controllers to move togetheror independently, allowing the operatorto position the seat and controllers formaximum productivity and Cab Noise The cab is highly rigid and hasexcellent sound in noise sourcereduction combined with the use of alow noise engine, hydraulic equipment,and air conditioner allows the operatorto work in a quiet Ride with Viscous Cab MountsViscous mounts are used for the cabmounting system. The cab mountsystem absorbs shocks and aids vibration reduction to providea comfortable CabThe machine is equipped with aROPS cab that conforms to ISO12117-2 for excavators as standardequipment. The ROPS cab has highshock-absorption performance,featuring excellent durability andimpact strength. It also satisfies therequirements of ISO OPG top guardlevel 1 for falling objects. Combinedwith the retractable seat belt, theROPS cab protects the operator incase of tipping over and against Seat Belt (optional)Easy-to-use retractable seat belt isemployed.

9 Tempered and Tinted GlassThe glass features high strength andblocks ultraviolet Escape HammerThe cab is equipped with anemergency escape hammer forbreaking the rear window glass in caseof an AlarmAn alarm is installed as standardequipment to give other workers awarning when the machine travels inforward or Room PartitionPump/engine room partition preventsoil from spraying on the engine if ahydraulic hose should PlatesHighly durable slip resistant platesmaintain superior foot LeverWhen lock lever is placed in lockposition all hydraulic controls (travel,swing, boom,arm andbucket) View Monitoring System(optional)The operator canview the rear ofthe machine with acolor VisibilityThe right side window pillar has beenremoved and the rear pillar reshapedto provide improved Skylight withwindow can beopened view image on monitorPressurized CabAuto air conditioner, air filter and ahigher internal air pressure preventexternal dust from entering the shown in lockpositionPhoto may include optional may include optional equipment.

10 ! ! " !# " !$ % & !' " ( ) ! * + ,- )- " * . !/ ( ! ! 0$ !1 ") - ") ! ) * * 2 ) ! 2 ) !/ ( ) * * !/ ( ! 10 Easy MaintenanceKomatsu designed the PC228US -8 tohave easy service access. By doing so,routine maintenance and servicing areless likely to be skipped, which canreduce costly downtime later on. Hereare some of the many service featuresfound on the FEATURESHYDRAULIC EXCAVATORPC228US-8 Side-by-side CoolingThe oil cooler, aftercooler and radiatorare installed side by side. As a result,it is very easy to clean the radiator, addition, the operator can removeand install theaftercooler,radiator andoil cooler in ashort Costs ReducedEco-white Filter ElementHigh performance filters are used in the hydraulic circuit andengine. Longer hydraulic oil, hydraulic oil filter, engine oil andengine oil filter element replacement intervals significantly reducemaintenance netAftercoolerOil coolerLarge TFT LCD MonitorBasic operationswitchesAir conditioneroperationswitchesFunction switches8123456756123467812345123456 IndicatorsBasic operation switchesLarge Multi-lingual LCD Monitor A large user-friendly color monitor enables safe, accurate and smooth screen visibility is achieved by the use of TFT liquid crystal display that caneasily be read at various angles and lighting conditions.