{"product_id":"castair-d10112hc2-s","title":"Castair D10112HC2-S","description":"\u003cp\u003eThe Castair D10112HC2-S is a 20 total horsepower duplex two-stage air compressor on a 120-gallon horizontal tank, wired for single-phase electricity. It runs two 10 HP cast iron pumps simultaneously through a magnetic starter — already mounted and wired from the factory — and delivers 70 CFM at 175 PSI. At 1,470 lbs and $price, this is a serious production floor compressor for shops that need high sustained output on single-phase power and the built-in redundancy of a true duplex setup.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Duplex and Why This Model\u003c\/h2\u003e\n\u003cp\u003eA duplex compressor runs two complete pumps — each with its own motor, pump, and controls — on a shared tank. The two units alternate or run simultaneously depending on demand. The practical benefit: if one pump needs service, the other keeps the shop running. For a production shop where downtime means idle lift bays, the duplex setup pays for itself the first time you avoid shutting down for a pump repair.\u003c\/p\u003e\n\u003cp\u003eThe D10112HC2-S specifically is the single-phase 120-gallon configuration. The HC2 pump runs at 758 RPM — slower than standard industrial pumps — which reduces heat buildup, extends valve life, and cuts noise compared to a high-RPM unit of equivalent output. The single-phase rating (with magnetic starter included) means you can run this on a standard 240V single-phase service without installing three-phase.\u003c\/p\u003e\n\n\u003ch3\u003ePump and Motor Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Duplex (two pumps, two motors)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal HP:\u003c\/strong\u003e 20 HP (2 x 10 HP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e Single-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump RPM:\u003c\/strong\u003e 758 (HC2 pump)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM at 0 PSI:\u003c\/strong\u003e 90 CFM combined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM at 175 PSI:\u003c\/strong\u003e 70 CFM combined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Pressure:\u003c\/strong\u003e 175 PSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage:\u003c\/strong\u003e Two-stage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTank and Physical Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Capacity:\u003c\/strong\u003e 120 gallons, horizontal ASME\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (LxWxH):\u003c\/strong\u003e 85\" x 28\" x 57\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1,470 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Finish:\u003c\/strong\u003e Powder coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Valve:\u003c\/strong\u003e ASME rated, installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Starter:\u003c\/strong\u003e Mounted and wired (factory installed)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCast Iron Pump Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll cast iron construction\u003c\/strong\u003e for long service life and quiet operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlow RPM design\u003c\/strong\u003e (758 RPM) reduces heat and extends valve life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered roller bearings\u003c\/strong\u003e at both ends of crankshaft for superior support and reduced friction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision steel connecting rods\u003c\/strong\u003e with automotive-type rod insert bearings at crankshaft and bearings at wrist pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc and spring valves\u003c\/strong\u003e for easy service, higher efficiency, and reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-ring pistons\u003c\/strong\u003e for higher efficiency and less oil carry-over\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal unloader\u003c\/strong\u003e for loadless start-up every time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFactory-Mounted Options Available\u003c\/h2\u003e\n\u003cp\u003eThe D10112HC2-S ships with the magnetic starter mounted and wired. Additional factory-installed options are available at order time:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Oil Control\u003c\/strong\u003e — #6304x2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHour Meter 230V\u003c\/strong\u003e — #HRM75x2M | 460V — #HRM460x2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternator\u003c\/strong\u003e — #ALT230M | #ALT460M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Auto Drain\u003c\/strong\u003e — #SDV03M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Control (C2 version)\u003c\/strong\u003e — #DC2x2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Noise Silencers (C2)\u003c\/strong\u003e — #SA100x4M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Tensioner (7.5-10HP)\u003c\/strong\u003e — #215Dx2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRight From the Start Kit\u003c\/strong\u003e — #RFS001D (10HP units)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration Pads (set of 4)\u003c\/strong\u003e — #VP1004\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeltguard Aftercooler (up to 70 CFM)\u003c\/strong\u003e — #BGAC1x2M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll Options C2 Package\u003c\/strong\u003e — #AOC2D\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eD10112HC2-S vs. Other Duplex Configurations\u003c\/h2\u003e\n\u003cp\u003eThe duplex lineup at the 2x10HP level gives you several choices:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eD10112HC2-S\u003c\/strong\u003e — 2x10HP, 1-phase, 120gal horizontal, 758 RPM, 70 CFM @ 175 PSI, 1,470 lbs (this unit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD10124HC2-S\u003c\/strong\u003e — Same pump\/motors, 240-gallon horizontal tank, 1,820 lbs — more storage for high-demand shops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD10112HC3-S\u003c\/strong\u003e — 2x10HP, 1-phase, 120gal horizontal, 570 RPM HC3 pump, 94x28x57 frame, 1,800 lbs — slower pump for even quieter, cooler operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD10124HC3-S\u003c\/strong\u003e — HC3 pump, 240-gallon tank, 2,150 lbs — maximum storage with the slower pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD10312HC2-S\u003c\/strong\u003e — 2x10HP, 3-phase, 120gal — same output as D10112HC2-S but on three-phase power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD10324HC2-S\u003c\/strong\u003e — 3-phase, 240-gallon — three-phase with maximum storage\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\u003eThis unit fits a shop that:\u003c\/strong\u003e Runs on single-phase 240V power (no three-phase service available), needs 60-70 CFM sustained output, runs multiple air tools or a paint booth simultaneously, and wants the peace of mind that comes from a duplex setup — one pump can keep the shop running while the other is serviced.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep down to a single Industrial Series\u003c\/strong\u003e if you run one or two tools at a time, rarely exceed 35-45 CFM demand, and do not need redundancy. A single 10HP I10112HC2-S delivers 35 CFM at 175 PSI at significantly lower cost and weight.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep up to the D10124HC2-S\u003c\/strong\u003e (240-gallon tank) if your shop has high peak demand that exhausts a 120-gallon tank before the pumps can catch up — busy collision shops, sandblasting operations, or spray painting with long continuous draw cycles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStep up to three-phase (D10312HC2-S or D10324HC2-S)\u003c\/strong\u003e if you have three-phase service available; three-phase motors run cooler, last longer, and are more efficient at this horsepower level.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications Summary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e D10112HC2-S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Castair (Cast Air, Inc.) — Spicer, Minnesota\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Duplex, two-stage, electric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal HP:\u003c\/strong\u003e 20 HP (2 x 10 HP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e Single-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump RPM:\u003c\/strong\u003e 758\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM @ 0 PSI:\u003c\/strong\u003e 90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM @ 175 PSI:\u003c\/strong\u003e 70\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank:\u003c\/strong\u003e 120 gallon, horizontal, ASME, powder coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (LxWxH):\u003c\/strong\u003e 85\" x 28\" x 57\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1,470 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Starter:\u003c\/strong\u003e Included, factory mounted and wired\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Valve:\u003c\/strong\u003e ASME rated, 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\u003eDischarge Tube:\u003c\/strong\u003e Copper or stainless-steel braided flex line\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cp\u003eWe have been selling industrial air compressors since 2016 and we know the Cast Air lineup inside out. When you are spending $10,000+ on a duplex compressor, you want to talk to someone who can answer technical questions, help you spec the right configuration for your electrical service and CFM requirements, and make sure it arrives properly. We offer free shipping, free technical support at 866-217-0063, and the full Castair manufacturer warranty. If the D10112HC2-S is not the right configuration for your shop, we will tell you that too — and point you to the one that is.\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":53342536761557,"sku":"D10112HC2","price":18900.2,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-d10112hc2-s","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}