{"product_id":"castair-35hp-commercial-air-compressor-horizontal-tank-c3513h60","title":"Castair 35HP Commercial Air Compressor Horizontal Tank - C3513H60","description":"\u003ch2\u003eCastair 35HP Commercial Air Compressor — Horizontal Tank (C3513H60)\u003c\/h2\u003e\n\u003cp\u003eThe C3513H60 is a 35HP, three-phase, two-stage all-cast-iron air compressor on a 60-gallon horizontal ASME tank. This is the base configuration — no factory-mounted magnetic motor starter. The horizontal tank keeps the profile low, which is useful in shops with overhead constraints. If you want the starter pre-mounted and wired at the factory, order the C3513H60-S instead. At 35HP, this unit is designed for high-production commercial and light industrial environments with sustained simultaneous air demand.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpec note:\u003c\/strong\u003e Castair does not publish complete spec tables for the C3513H60 on their public website. The data below is derived from Castair model naming conventions and comparable C-series pump units. Contact us or Castair for confirmed CFM, RPM, and dimensional specs before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eWho This Is For\u003c\/h2\u003e\n\u003cp\u003eThis is not an entry-level compressor. A 35HP two-stage unit is built for shops running 6-10 air tools simultaneously at sustained demand — large automotive service operations, fleet maintenance facilities, or light manufacturing lines. Three-phase power at this HP level is more efficient than single-phase, draws lower current per leg, and is standard in commercial electrical installations. If your shop has three-phase service and needs consistent high-volume air, this is the right category of machine.\u003c\/p\u003e\n\n\u003ch2\u003eCast Iron Pump Design\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAll cast iron pump construction:\u003c\/strong\u003e Cylinders, heads, crankcase — full cast iron throughout\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTwo-stage compression:\u003c\/strong\u003e First stage to intermediate pressure, second stage to 175 PSI working pressure — thermally efficient at high PSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSlow RPM operation:\u003c\/strong\u003e Extended pump and valve life, lower heat generation, quieter than high-speed designs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapered roller bearings:\u003c\/strong\u003e Both ends of the crankshaft — superior support and reduced friction\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, high efficiency, reliable under sustained cycling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4-ring pistons:\u003c\/strong\u003e Higher compression efficiency, reduced oil carry-over into the air stream\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMechanical centrifugal unloader:\u003c\/strong\u003e Motor starts fully unloaded — compression begins only as RPM reaches operating speed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e60-Gallon Horizontal ASME Tank\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorizontal layout:\u003c\/strong\u003e Low profile — fits in bays with overhead obstructions or where vertical height is limited\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eASME pressure vessel rating:\u003c\/strong\u003e Code-compliant for commercial and industrial installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePowder coat finish:\u003c\/strong\u003e Corrosion-resistant exterior\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannel base:\u003c\/strong\u003e Welded steel channel frame — standard on Castair horizontal tanks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eASME safety valve:\u003c\/strong\u003e Factory-installed pressure relief\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCopper discharge and unloader tube:\u003c\/strong\u003e More durable and better heat dissipation than rubber hose connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTotally enclosed metal belt guard:\u003c\/strong\u003e OSHA-compliant, protects belt drive from contamination\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eElectrical — No Starter Included\u003c\/h2\u003e\n\u003cp\u003eAt 35HP three-phase, a magnetic motor starter is required for operation — the motor's inrush current at startup requires proper overload protection that a standard pressure switch cannot provide. This unit ships without a starter. You need to supply and install a starter rated for the motor's HP and voltage. See Castair's magnetic starter catalog or call us to confirm the correct starter part number for your installation voltage (208\/230V 3-phase or 460V 3-phase).\u003c\/p\u003e\n\n\u003ch2\u003eAvailable Configurations\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTank Orientation\u003c\/th\u003e\n\u003cth\u003eStarter\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eC3513H60\u003c\/td\u003e\n\u003ctd\u003e60-Gal Horizontal\u003c\/td\u003e\n\u003ctd\u003eNot included — this unit\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eC3513H60-S\u003c\/td\u003e\n\u003ctd\u003e60-Gal Horizontal\u003c\/td\u003e\n\u003ctd\u003eFactory-mounted and wired\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eC3516V60\u003c\/td\u003e\n\u003ctd\u003e60-Gal Vertical\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eC3516V60-S\u003c\/td\u003e\n\u003ctd\u003e60-Gal Vertical\u003c\/td\u003e\n\u003ctd\u003eFactory-mounted and wired\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhen Does a Shop Need This vs. Stepping Up or Down?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStep down\u003c\/strong\u003e to 20HP or 25HP (Castair I20324HC4-S or I25324HC4-S) if your shop doesn't run simultaneous heavy air demand. The 25HP unit delivers 109 CFM @ 0 PSI with a 240-gallon tank — often more practical for high-volume automotive shops because the larger tank buffer means fewer pump cycles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis unit\u003c\/strong\u003e is the right fit for production environments where compressor cycling is a current problem and you need more sustained output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep up\u003c\/strong\u003e to a duplex configuration if redundancy matters — two motors, two pumps, one tank, with an alternator so one unit can cover if the other needs service.\u003c\/p\u003e\n\n\u003ch2\u003eFactory Options\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Oil Control (#6304M):\u003c\/strong\u003e Shuts down the compressor if oil drops to unsafe levels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHour Meter:\u003c\/strong\u003e Track runtime for scheduled maintenance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto Drain (#ADVSM or #SDV03M):\u003c\/strong\u003e Air-operated or electronic condensate drain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Control (#DC3):\u003c\/strong\u003e On\/off plus constant speed operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntake Silencers (#SA100x2M):\u003c\/strong\u003e Reduces pump inlet noise\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBeltguard Aftercooler (#BGAC3M):\u003c\/strong\u003e Cools compressed air before it enters the tank\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVibration Pads (#VP1004):\u003c\/strong\u003e Set of four 4x4x1\" rubber isolation pads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRight From the Start Kit (#RFS003):\u003c\/strong\u003e Break-in oil, vibration pads, ball valve, flex hose, air filter element\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e C3513H60\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 35HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank:\u003c\/strong\u003e 60-gallon horizontal, ASME-rated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-phase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePump Type:\u003c\/strong\u003e Two-stage cast iron, C-series\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStarter:\u003c\/strong\u003e Not included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDischarge:\u003c\/strong\u003e Copper tube with unloader\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Guard:\u003c\/strong\u003e Totally enclosed metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCFM\/RPM\/Dimensions:\u003c\/strong\u003e Contact us — not in Castair's public spec tables for this model\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAssembled compressor unit (pump, motor, horizontal tank, belt drive)\u003c\/li\u003e\n  \u003cli\u003eTotally enclosed metal belt guard\u003c\/li\u003e\n  \u003cli\u003eCopper discharge tube with unloader\u003c\/li\u003e\n  \u003cli\u003eASME safety valve and pressure switch\u003c\/li\u003e\n  \u003cli\u003eOil sight glass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNot included:\u003c\/strong\u003e Magnetic motor starter, vibration pads, flex hose, ball valve, break-in oil\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h2\u003e\n\u003cp\u003eWe have specialized in commercial and industrial air compressors since 2016. We carry the full Castair lineup — compressors, pumps, tanks, starters, and accessories — and can help you confirm specs and select the right configuration for your application. Free shipping on qualifying orders. Free technical support at 866-217-0063. Full manufacturer warranty. If this unit isn't the right fit for your power supply or duty cycle, we'll tell you.\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":53342527684821,"sku":"C3513H60","price":3297.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/C3513H60.jpg?v=1772675003","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-35hp-commercial-air-compressor-horizontal-tank-c3513h60","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}