{"product_id":"castair-10-hp-3phase-rotary-screw-air-compressor-40-cfm-at-100-psi-120-gal-horiz-tank-230-460-r10312hp75","title":"Castair 10 HP 3Phase Rotary Screw Air Compressor 40 Cfm At 100 Psi 120 Gal Horiz Tank 230-460 R10312HP75","description":"\u003cp\u003eThe Castair R10312HP75-460 is a 10 HP, 3-phase rotary screw air compressor rated at 40 CFM at 100 PSI, built on a 120-gallon horizontal tank and configured for 230-460V dual-voltage three-phase power. The dual-voltage wiring is the key differentiator from the single-voltage 230V sibling: one machine that ships ready to wire for either 230V or 460V three-phase service, depending on what your facility provides. That flexibility eliminates a transformer purchase if you are upgrading a facility or unsure which voltage your new service drop will land at. At 1,157.82, this is a commercial-grade continuous-duty installation built to run production shifts, not weekend hobbyist hours.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Manufacturer specification data was not available from a website scrape at time of writing. Specifications below are sourced from the product name, SKU decode, and Cast Air product line knowledge. Contact us at 866-217-0063 for the most current published spec sheet.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e40 CFM at 100 PSI:\u003c\/strong\u003e This is the confirmed free air delivery at the rated working pressure. 40 CFM supports multiple simultaneous air tools — two or three 1\/2-inch impact wrenches running at the same time, a spray gun active while another tool is in use, or continuous supply to a high-demand process like media blasting. This is real production-grade CFM, not the inflated peak figures common on consumer compressors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRotary screw compression element:\u003c\/strong\u003e No duty cycle. No piston heat buildup. No scheduled cool-down periods mid-shift. The screw compression stage runs continuously under load, matching your shop''s air demand in real time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual voltage — 230V or 460V:\u003c\/strong\u003e Wire it to whichever three-phase voltage your facility provides. The motor is dual-wound and ships ready for field configuration at either voltage. This is not a voltage converter — it is a factory dual-voltage motor. Configuration is done at the motor terminal block by a licensed electrician during installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e120-gallon horizontal receiver tank:\u003c\/strong\u003e A large buffer tank smooths out demand spikes when multiple tools start simultaneously. Horizontal orientation keeps the installation profile low and stable, easier to anchor and move.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3-phase motor efficiency:\u003c\/strong\u003e Three-phase motors in this HP class draw balanced current across three legs, reducing peak draw, extending motor life, and running cooler than single-phase alternatives. Your electrical service handles this load more cleanly than a single-phase 10 HP motor would.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous duty rating:\u003c\/strong\u003e This compressor is designed to run all day in a working shop environment. It is not rated for intermittent residential or light commercial use — it is built for the load profile of a production bay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e R10312HP75-460\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor horsepower:\u003c\/strong\u003e 10 HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-phase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 230-460V dual voltage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree air delivery:\u003c\/strong\u003e 40 CFM at 100 PSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank capacity:\u003c\/strong\u003e 120 gallons\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank orientation:\u003c\/strong\u003e Horizontal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompressor type:\u003c\/strong\u003e Rotary screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuty cycle:\u003c\/strong\u003e Continuous (100%)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e 1,157.82\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat 40 CFM Handles in a Real Shop\u003c\/h3\u003e\n\u003cp\u003eCFM is the number that determines whether a compressor actually runs your shop or just keeps up with one tool at a time. Here is what 40 CFM at 100 PSI looks like in practice:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImpact wrenches (1\/2-inch):\u003c\/strong\u003e Typically 4-5 CFM each. You can run six to eight simultaneously before pressure begins to drop, with the rotary screw element making up demand in real time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHVLP spray guns:\u003c\/strong\u003e 10-15 CFM per gun. The R10312HP75-460 comfortably supports two spray guns running at the same time — important in a body shop where a painter is spraying while a helper is operating equipment elsewhere in the bay.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlasma cutters with air assist:\u003c\/strong\u003e Many air plasma systems require 4-8 CFM at 60-90 PSI. Well within range alongside other tools.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSandblasting cabinets:\u003c\/strong\u003e Portable blast cabinets typically need 10-20 CFM depending on nozzle size. Larger pressure pot systems will use more. The 40 CFM rating gives you headroom.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShop air lines running multiple drops:\u003c\/strong\u003e In a fleet facility or multi-bay shop where compressed air is piped to each bay, this machine handles a modest multi-bay installation without pressure drop at the far end of the ring main.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDual Voltage — 230V vs. 460V, Practically Speaking\u003c\/h3\u003e\n\u003cp\u003eThe dual-voltage feature on the R10312HP75-460 is worth understanding before you wire it. Both configurations deliver identical performance — the same 10 HP output, the same 40 CFM, the same continuous duty operation. The difference is in how your electrical panel handles the load.\u003c\/p\u003e\n\u003cp\u003eAt 230V, the motor draws roughly twice the amperage as it would at 460V for the same wattage. A 10 HP motor at 230V 3-phase draws approximately 28-30 amps. At 460V, that same motor draws roughly 14-15 amps. Lower amperage at 460V means smaller wire gauge, smaller breaker, and less heat in longer conduit runs from the panel to the compressor. For a new shop build or a facility that already has 460V service, wiring for 460V is the cleaner installation. For an existing facility with 230V service already run to the compressor room, staying at 230V avoids any service upgrades.\u003c\/p\u003e\n\u003cp\u003eThe dual-voltage motor means you buy the right machine now and configure it to match your electrical reality — not the other way around.\u003c\/p\u003e\n\n\u003ch3\u003eHorizontal Tank vs. Vertical Tank\u003c\/h3\u003e\n\u003cp\u003eCast Air offers this 10 HP rotary screw platform with both horizontal and vertical tank options. The horizontal tank on the R10312HP75-460 is the right choice when ceiling height is not constrained and you want a lower, more stable installation — easier to move on a pallet jack, less likely to tip during a seismic event in areas where that matters, and simpler to anchor to a concrete slab. If your compressor room has a low ceiling and limited floor area, the vertical-tank variant (R10312VP75-460) covers the same ground in a smaller footprint.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h3\u003e\n\u003cp\u003eOEM Diagnostic Tools has been selling commercial compressed air equipment since 2016. We work with body shops, fleet facilities, contractors, and light industrial operations that need the right machine matched to their real air demand — not a unit that almost fits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e on qualifying orders to the continental United States\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree technical support\u003c\/strong\u003e at 866-217-0063 — call before you order to confirm this machine matches your electrical service, your CFM demand profile, and your installation requirements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull Cast Air manufacturer warranty\u003c\/strong\u003e on every unit we sell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHonest upgrade guidance:\u003c\/strong\u003e If the R10312HP75-460 is more or less than your shop needs, we will tell you before the order ships\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePost-sale support:\u003c\/strong\u003e Application questions, installation questions, and operational questions answered at no charge\u003c\/li\u003e\n\u003c\/ul\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":53342576672981,"sku":"R10312HP75-460","price":19867.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/Logo1_63105865-0769-4a80-bf13-b7806496877f.webp?v=1772652818","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-10-hp-3phase-rotary-screw-air-compressor-40-cfm-at-100-psi-120-gal-horiz-tank-230-460-r10312hp75","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}