Oil Free Scroll Air Compressors - Hitachi America, Ltd.

Oil Free Scroll Air CompressorsHistory of HITACHI Air Technology1910 1930 1950 1970 1980 1990 2000 20101911: 75kW ReciprocatingFirst Compressor in Japan1977: Smallest 5.5kWOil Injected Rotary Screw1976: Oil Injected PackagedRotary Screw Series1968: First Oil Free Rotary Screw DS series1982: World's SmallestSingle StageOil Free Rotary2002: New Generation Oil InjectedHISCREW2000* 2 Series2009: New Multi-DriveOil Free Scroll1986: World's Smallest Air CooledOil Free Rotary1999: New Generation Oil Free1954: Oil Free 22kWRotary Screw DSP SeriesReciprocating1967: Oil Free Bebicon* 1 1984: World's SmallestSingle Stage Oil Free Rotary1980: First DSP Series Oil Free1Rotary Screw2000: World's FirstVariable Speed Drive Oil Free Rotary21946: First Bebicon* 11985: World's FirstOil InjectedScroll Bebicon* 11995: Oil Free ScrollSRL Series2005: New Oil Free ScrollSRL Series1969: First Vortex Blower2001: Package Scroll Bebicon* 11981: Vortex Blower E series Series1992: Vortex Blower G SeriesEstablishment in 1910 as a machine repair shop, HITACHI has evolved in providing a varietyof Innovative, Technologically Superior, and Value Oriented products for our customers.Founded in Harmony, Sincerity and a Pioneering Spirit, our ongoing mission is to “Contributeto Society through Technology”. The Past, Present, and Future of Hitachi Air TechnologyGroup Products represent our passion for continuing this mission.**1: Brand Name of Small Compressors2: Series Name of Oil Injected Rotary Screw Compressors

Oil Free Scroll Air CompressorsInnovation Through TechnologyEnvironmentally FriendlyScroll Compression PrincipleHITACHI’s history of success and proven experience inScroll Technologies has enabled Worldwide Innovationin building the World's First Scroll for air compression.With over 20+ years experience in scroll compression,our quest for improvement is evident in the design andour application. To initiate compression, two scrollmembers comprised of: 1) Orbiting scroll member and2) Fixed scroll member are mated to createcompression chambers. The continual rotary movementof the orbiting scroll member compresses air from theatmosphere creating Oil-Free and Contaminant-Free airfor the discriminating compressed air application.IntakeAirFixed ScrollOrbiting ScrollCompressionChamberOutletSuctionProcessCompressionProcessDischargingProcessOil-Less DesignHITACHI Oil-Free Scroll Technology is 100% Oil-Less -NO Oil At All !This results in a package that has zero harmful emissions into the environment.Proprietary Scroll Wrap(Patent USP 6808373)3 4Hitachi's patented wrap design with Labyrinthseal provides superior performance andreliability. Alumite surface treatment alsocontributes to extended scroll life.Multi-stage CoolingUsage of primary and secondaryair cooling stablizes dischargetemperature.Primary CoolerSecondary CoolerLow Sound and VibrationHITACHI Oil Free Scroll Compressors are designed forIndustry Leading Sound by providing:- Full Enclosure as Standard- Mechanical and Electrical Vibration Isolation- Design for the Minimization of Leak Paths

Oil Free Scroll Air CompressorsEnergy EfficiencyHITACHI Control MethodologyHitachi's Microproccessor control ensures the greatest efficiency of operation.Proprietary control logic provides package performance under a variety of conditions.Versatility of DesignCycle Control LogicHitachi’s unique pressure control method provides high reliability. When maximum pressureis set low for energy saving, short cycle of On-Off may occur. In that case, the maximumpressure is automatically raised to elongate the On-Off cycle and ease the excessive restartingfrequency.HITACHI Multi-Drive Control (applicable on 7.5 kW-16.5 kW models)Multi-Drive control method is added to the conventional Pressure Switch Control method.Rated Maximum(Unload / Stop) PressureCount Frequency ofRestartAutomatic settings of Max. pressureto avoid excessive ON/OFF freqency.It is also possible to easily change between Multi-Drive control and Pressure Switch controlby operation of switch button. Under Multi-Drive control mode, the operation of SRL heads ismodified automatically responding to the need of air. So, optimized operation which can keepthe necessary pressure is possible.User Setting Maximum(Unload / Stop) PressureAuto-SettingUser Setting Minimum(Load / Start) PressureMulti-Drive ModeConventional P-mode Multi-Drive mode Energy-SavingThe operation of the compressor is automaticallyOperationOperation Effectcontrolled to ensure that the pressure is kept at theON-OFF ON-OFF5 6necessary pressure (control pressure).Unnecessary power consumption is prevented by notallowing the pressure to reach the maximum pressure.Therefore energy-saving is realized.P-ModeOperates the same as the conventional Pressure SwitchControl method. If the pressure reaches the maximumpressure, the operation of compressor will stop.Then when the pressure decreases to the cut-in pressure,the operation of compressor will automatically restart.PressureConventional P-mode OperationMulti-Drive mode OperationTimeMax. PressureControl PressureCut-in PressureCycleCycle(elongated)Maintenance FriendlyHITACHI Oil Free Scroll Compressors are constructed to enable easy accessibility forinspection and maintenance. Incorporation of leading technologies allows the finalproduct to consume less space, enabling conservation of the work environment.Control PanelSecondary CoolerHITACHI Innovative DesignHitachi's unique tip seal with special material provides:- Increased Performance (Low Leakage)- Extended Service Intervals- High EfficiencySuctionFiltersScrollHeadDual AirReceiver TankStarter Panel (UL) Motor Ventilation FanPrimary Cooler

Oil Free Scroll Air CompressorsHITACHI Innovative Technologies enableReliable, Environmentally Friendlythe SRL Compressor Series to provideCompressed Air at the Lowest Energy Cost.Manufacturing Excellence- Hitachi Compressors (since 1911)- Hitachi Motors (since 1910)Oil-Less Design- Eliminates Environmental Emissions- Conserves natural resourcesMaintenance Friendly- Easy Accessability forInspection and MaintenanceMulti-stage Cooling- Stabilizes Discharge TemperatureProprietary Tip Seal andUnique Scroll Wrap7- Space Saving Structure- Increased Performance (Low Leakage)8- Extended Service Intervals- High EfficiencyIndustry Leading Sound- Quiet Enclosure Standard- Design for the Minimization of Leak PathsSpecial Alumite treatment- Extends Scroll Life- Limits life cycle costControl Design- Standard Microprocessor Control- Cycle Control Logic protects from rapid cycling.- Multi-Drive Control on 7.5 kW-16.5kW modelsSpace Saving- Unit is compact in overall dimension.- Panel accessibility promotes space conservation.

Oil Free Scroll Air CompressorsAftermarket ServicesHITACHI factory authorized service and maintenance available.Face Seal, Back TubeIntake Air Filter- Ensure high reliability of compression - Ensure high efficient filtration,and high quality of oil-free airVarious Applications in IndustriesPharmaceuticalFood & BeverageChemicalResearch and Development9 10V-Belt- Easy-to-MaintainTip Seal- Hitachi's unique technology to minimizeair leakageElectronicDiversified IndustrialBy applying our comprehensive abilities to the development, engineering,manufacturing, sales and service we are able to supply high value-addedproducts and solution systems which meet our customers’ needs.We know that we can contribute to our customers’ business by creating andproviding beneficial value-added solutions with our total competencies.