{"product_id":"castair-7hp-3-phase-industrial-air-compressor-horizontal-tank-i733hc1","title":"Castair 7HP 3-Phase Industrial Air Compressor  Horizontal Tank - I733HC1","description":"\u003ch2\u003eCastair I733HC1: 7 HP Three-Phase Industrial Air Compressor, Horizontal Tank\u003c\/h2\u003e\n\u003cp\u003eThe Castair I733HC1 is a 7 horsepower, three-phase industrial reciprocating air compressor on a horizontal ASME tank, C1 pump configuration. This is the three-phase equivalent of the I713HC1 single-phase model — same HP class, same horizontal tank orientation, but with a three-phase motor that runs more efficiently and requires less current per phase than the single-phase version.\u003c\/p\u003e\n\u003cp\u003eIf your shop has three-phase power, the I733HC1 is the right choice over the I713HC1. Three-phase motors at 7 HP draw balanced current across all three phases, which means less voltage drop on your panel, cooler motor operation, and longer motor life compared to a single-phase unit of the same HP rating. For shops that already have three-phase service wired in, there is no reason to run single-phase at this power level.\u003c\/p\u003e\n\u003ch2\u003eWho This Compressor Is For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eShops with three-phase electrical service that need a horizontal-mount industrial compressor\u003c\/li\u003e\n\u003cli\u003eOperations running one to two technicians with moderate-to-high air demand on three-phase power\u003c\/li\u003e\n\u003cli\u003eFacilities where the horizontal tank profile fits the available floor and ceiling layout\u003c\/li\u003e\n\u003cli\u003eBuyers who want a standalone starter installed separately rather than a factory-mounted version\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIndustrial Cast Iron Pump — C1 Configuration\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll cast iron construction:\u003c\/strong\u003e Cylinder, head, crankcase — not aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlow pump RPM:\u003c\/strong\u003e C1 configuration — consistent with the industrial series range of 420 to 995 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered roller bearings:\u003c\/strong\u003e At both ends of the crankshaft for superior load support and reduced friction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision steel connecting rods:\u003c\/strong\u003e Automotive-type insert bearings at crankshaft and wrist pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc and spring valves:\u003c\/strong\u003e More serviceable and reliable than reed valves, designed for industrial duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-ring pistons:\u003c\/strong\u003e Four rings per piston for better compression efficiency and less oil carryover\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal unloader:\u003c\/strong\u003e Starts unloaded every cycle — no cranking against full head pressure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTank, Motor, and Controls\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank type:\u003c\/strong\u003e Horizontal ASME-rated tank with channel base, powder-coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e 7 HP three-phase, 1725 RPM industrial motor, 15% service factor or higher\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e Three-phase (3-phase)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME safety valve:\u003c\/strong\u003e Factory installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt guard:\u003c\/strong\u003e Metal, totally enclosed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor starter:\u003c\/strong\u003e Not factory-mounted — field-installed separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eI733HC1 vs. I713HC1: Three-Phase vs. Single-Phase\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eI713HC1:\u003c\/strong\u003e 7 HP single-phase, 230V — for shops with only single-phase service available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI733HC1 (this unit):\u003c\/strong\u003e 7 HP three-phase — more efficient motor, lower current per phase, longer motor life. Choose this if three-phase power is available.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe pump configuration, tank, and output specs are the same between the two. The motor and wiring requirements differ. If you are not sure which power type is wired in your shop, have your electrician check before ordering.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e I733HC1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 7 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e Three-phase (3-phase)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank type:\u003c\/strong\u003e Horizontal (HC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump configuration:\u003c\/strong\u003e C1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor starter:\u003c\/strong\u003e Not included — field-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM, PSI, RPM, dimensions, weight:\u003c\/strong\u003e Manufacturer specifications pending — contact us at 866-217-0063 for confirmed data\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFactory Options Available\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Oil Control (#6304M):\u003c\/strong\u003e Automatic shutdown on low oil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHour Meter (#HRM460M for 460V or #HRM75M for 230V three-phase):\u003c\/strong\u003e Runtime tracking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Operated Auto Drain (#ADVSM):\u003c\/strong\u003e Automatic condensate drain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Auto Drain (#SDV03M):\u003c\/strong\u003e Timer-based drain valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Control (#DC1 for C1):\u003c\/strong\u003e Start\/stop and constant speed modes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Noise Silencer (#SA100M for C1):\u003c\/strong\u003e Reduces pump inlet noise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration Pads (#VP1004):\u003c\/strong\u003e Four 4x4x1 inch isolation pads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRight from the Start Kit (#RFS001 for C1):\u003c\/strong\u003e Startup accessories bundle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeltguard Aftercooler (#BGAC1M, 35 CFM):\u003c\/strong\u003e Moisture control — recommended for painting and blasting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h2\u003e\n\u003cp\u003eWe carry the full Castair industrial series across both single-phase and three-phase configurations. If you are deciding between the I713HC1 and I733HC1, call us — we can confirm your power service type matches the motor, verify the voltage configuration, and make sure you are getting the right starter specification for field installation. Free shipping on qualifying orders. Free tech support before and after the sale. Full manufacturer warranty on every Castair industrial unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342569070805,"sku":"I733HC1","price":6006.6,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-7hp-3-phase-industrial-air-compressor-horizontal-tank-i733hc1","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}