{"product_id":"castair-i738vc1-s","title":"Castair I738VC1-S","description":"\u003cp\u003eThe Castair I738VC1 is a 7.5 HP, 3-phase industrial air compressor on an 80-gallon vertical ASME tank with the C1 pump — without the factory-mounted magnetic motor starter. Identical to the I738VC1-S in all mechanical respects: same C1 pump at 895 RPM, same 32.4 CFM at 0 PSI, same 24.8 CFM at 175 PSI, same 32x24x74-inch vertical tank, same 625 lb shipping weight. The starter is not included.\u003c\/p\u003e\n\n\u003cp\u003eOrder this model when your existing panel handles motor overload protection, or when your electrician will source and mount the magnetic starter as part of the installation. For the factory-mounted-starter version, see I738VC1-S. Compatible starters: S72 with B36 heaters at 208\/230V, or S74 with B22 heaters at 460V.\u003c\/p\u003e\n\n\u003ch3\u003ePump Features — Cast Iron C1 Two-Stage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll cast iron construction:\u003c\/strong\u003e Cylinders, heads, and crankcase — cast iron throughout, not aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlow 895 RPM operation:\u003c\/strong\u003e Belt-drive reduction from the 1,725 RPM motor keeps heat low and pump life long\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered roller bearings at both crankshaft ends:\u003c\/strong\u003e Handles radial and thrust loads better than ball bearings under continuous service\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision steel connecting rods:\u003c\/strong\u003e Automotive-type rod insert bearings at crankshaft, needle bearings at wrist pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc and spring valves:\u003c\/strong\u003e Easy to service, reliable under sustained pressure cycling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-ring pistons:\u003c\/strong\u003e Reduced oil carry-over into the discharge air\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal unloader:\u003c\/strong\u003e No-load start on every cycle — head pressure releases before the motor cranks up\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTank and Frame Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e80-gallon vertical ASME-rated tank:\u003c\/strong\u003e Powder coated, four-leg base for stable floor installation — takes less floor space than a horizontal of the same capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME safety valve:\u003c\/strong\u003e Factory installed, rated for working pressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal belt guard:\u003c\/strong\u003e Fully enclosed — not a plastic clip-on\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper discharge and unloader tube:\u003c\/strong\u003e Better heat dissipation than rubber or plastic lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMotor\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,725 RPM heavy-duty industrial motor:\u003c\/strong\u003e Full 15% service factor — continuous duty rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-phase:\u003c\/strong\u003e Requires magnetic motor starter for overload protection (not included — see -S version for factory-mounted starter)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCastair I738VC1 compressor assembly (C1 pump, motor, 80-gal vertical tank, belt drive, belt guard)\u003c\/li\u003e\n\u003cli\u003eASME safety valve (installed)\u003c\/li\u003e\n\u003cli\u003eCopper discharge and unloader tube (installed)\u003c\/li\u003e\n\u003cli\u003ePressure switch (installed)\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eMagnetic motor starter not included — order I738VC1-S for the starter-included version\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAvailable Configurations — 7.5HP 3-Phase Industrial Lineup\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eI738HC1-S:\u003c\/strong\u003e 7.5HP, 3-phase, 80-gal horizontal, C1 pump, 895 RPM, 24.8 CFM@175PSI, 64x20x48 in., 625 lbs, magnetic starter included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI738HC1:\u003c\/strong\u003e Same as above without factory-mounted magnetic starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI738HC2-S:\u003c\/strong\u003e 7.5HP, 3-phase, 80-gal horizontal, C2 pump, 585 RPM, 28.1 CFM@175PSI, 64x20x46 in., 730 lbs, magnetic starter included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI738HC2:\u003c\/strong\u003e Same as above without factory-mounted magnetic starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI738VC1-S:\u003c\/strong\u003e 7.5HP, 3-phase, 80-gal vertical, C1 pump, 895 RPM, 24.8 CFM@175PSI, 32x24x74 in., 625 lbs, magnetic starter included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI738VC1:\u003c\/strong\u003e Same as above without factory-mounted magnetic starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI738VC2-S:\u003c\/strong\u003e 7.5HP, 3-phase, 80-gal vertical, C2 pump, 585 RPM, 28.1 CFM@175PSI, 40x24x74 in., 730 lbs, magnetic starter included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI738VC2:\u003c\/strong\u003e Same as above without factory-mounted magnetic starter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI7312HC2-S:\u003c\/strong\u003e 7.5HP, 3-phase, 120-gal horizontal, C2 pump — maximum reserve for high-demand shops\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen Does a Shop Need This vs. Stepping Up or Down\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe I738VC1-S is the right call if:\u003c\/strong\u003e You have 3-phase power and want to conserve floor space. A vertical tank's footprint (32x24 in.) is significantly smaller than a horizontal (64x20 in.) — if your shop wall space is limited, the vertical tank lets you tuck the compressor into a corner while the height stays at 74 inches. Output is identical to the I738HC1-S: 24.8 CFM at 175 PSI from the same C1 pump and motor.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eChoose horizontal (I738HC1-S) instead\u003c\/strong\u003e if ceiling height is the constraint rather than floor space — horizontal tanks are lower profile and fit under ductwork or low ceilings that a 74-inch vertical tank won't clear.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eStep up to I738VC2-S\u003c\/strong\u003e for more CFM — the C2 pump delivers 28.1 CFM at 175 PSI if your shop's air demand exceeds what the C1 provides.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e I738VC1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 7.5 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Capacity:\u003c\/strong\u003e 80 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Type:\u003c\/strong\u003e Vertical, ASME-rated, powder coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Dimensions:\u003c\/strong\u003e 32 x 24 x 74 in. (L x W x H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight:\u003c\/strong\u003e 625 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Model:\u003c\/strong\u003e C1 (two-stage, cast iron, inline-2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump RPM:\u003c\/strong\u003e 895\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM @ 0 PSI:\u003c\/strong\u003e 32.4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM @ 175 PSI:\u003c\/strong\u003e 24.8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Working Pressure:\u003c\/strong\u003e 175 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Speed:\u003c\/strong\u003e 1,725 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter:\u003c\/strong\u003e Not included (see I738VC1-S for starter-included version)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Starter (208\/230V):\u003c\/strong\u003e S72 with B36 heaters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Starter (460V):\u003c\/strong\u003e S74 with B22 heaters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Tube:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Guard:\u003c\/strong\u003e Metal, fully enclosed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cp\u003eWe specialize in industrial and commercial air compressors and have been at it since 2016. When you call, you're talking to someone who knows the Castair lineup, can tell you whether the C1 or C2 pump fits your shop's CFM requirements, and can help you decide between horizontal and vertical tank configurations for your space. Free shipping, free technical support at 866-217-0063, full Castair manufacturer warranty. Call us before you buy if you have questions about which configuration is right for your shop.\u003c\/p\u003e\n\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":53342569332949,"sku":"I738VC1","price":6347.4,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-i738vc1-s","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}