{"product_id":"heavy-duty-shop-rotary-screw-model-no-r15312hg30-also-230-or-460","title":"Heavy Duty Shop Rotary  -  Screw - Model No. : R15312HG30 - Also 230 or 460","description":"\u003ch2\u003eCast Air R15312HG30 — 15 HP 3-Phase Rotary Screw Air Compressor, 120-Gallon Horizontal Tank (230V or 460V)\u003c\/h2\u003e\n\n\u003cp\u003eThe Cast Air R15312HG30 is the base model designation for the 15 horsepower 3-phase rotary screw compressor series with a 120-gallon horizontal tank. This unit is available in two voltage configurations: 230V 3-phase (model suffix -230) and 460V 3-phase (model suffix -460). At $11,112, you are making a serious capital investment in shop infrastructure — this is the compressor you buy when you intend to stop worrying about air supply for the next decade.\u003c\/p\u003e\n\n\u003cp\u003eBefore ordering, specify your voltage when you call or order. The physical unit and mechanical performance are the same. What differs is the motor winding, starter contactor, and electrical connections. Make sure your shop service matches the voltage you order — a 460V unit on a 230V service is not a configuration error you can correct with a quick part swap.\u003c\/p\u003e\n\n\u003ch3\u003eWhat You Get With 15 Horsepower of Rotary Screw Output\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous duty operation:\u003c\/strong\u003e Rotary screw compressors are engineered to run 100% of the time at rated output without thermal overload or premature wear. This is not a piston compressor that needs rest cycles. If your shop runs two shifts, this unit can run both shifts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCFM output at 100 PSI:\u003c\/strong\u003e The 460V variant is rated at 58 CFM at 100 PSI. That output is sufficient to simultaneously run two HVLP spray guns, multiple impact wrenches, and air-powered lift controls without pressure drops during concurrent use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuieter operation than piston alternatives:\u003c\/strong\u003e Rotary screw compression eliminates the reciprocating piston noise. Shops often notice an immediate drop in ambient noise level when switching from a piston compressor of equivalent output. That matters when you are making phone calls next to the compressor room.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLower maintenance complexity:\u003c\/strong\u003e Service intervals consist of oil changes, oil filter, air\/oil separator element, and intake filter replacement. No piston rings, no cylinder honing, no valve plate replacement cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho Steps Up to 15HP\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody shops running spray work and tools simultaneously:\u003c\/strong\u003e Paint prep, blocking, and body work all pull air at the same time in a busy collision center. A 10HP unit (approximately 35–42 CFM) can run out of margin when the booth is painting and the prep stall is active simultaneously. 15HP closes that gap.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFleet service facilities with multiple bays:\u003c\/strong\u003e Trucks, buses, and heavy equipment require higher-CFM tools — 3\/4\" and 1\" impacts, air-powered lug removal, high-volume blow guns. If you have four or more bays working at the same time, 10HP compressors often can't keep up.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShops that have already maxed out their 10HP unit:\u003c\/strong\u003e The most reliable indicator that you need to step up: your existing compressor runs continuously and pressure still drops during peak tool use. That's the signal. A 15HP rotary screw with a 120-gallon tank addresses it directly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNew facility construction:\u003c\/strong\u003e If you are building out a new shop and sizing the air system from scratch, 15HP is the appropriate anchor for a 4–6 bay facility with moderate-to-heavy tool density.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVoltage Selection: 230V vs. 460V\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e230V 3-phase (R15312HG30-230):\u003c\/strong\u003e Choose this if your shop has 230V 3-phase service and adding a 460V panel or transformer is not practical. Many shops already running 230V 3-phase equipment (lifts, welders, older CNC) will find the 230V version the simpler path to installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e460V 3-phase (R15312HG30-460):\u003c\/strong\u003e At 460V, the amperage draw for the same 15HP output is roughly half what the 230V unit requires. That translates to smaller wire gauge for the supply run, smaller breaker, and less heat load on your panel. If your facility has 460V available, this is the preferred option for a compressor of this size.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical planning:\u003c\/strong\u003e Engage a licensed electrician before ordering. Supply wire sizing depends on your run length, local electrical code, and available panel capacity — not just the nameplate voltage and HP.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransformer option:\u003c\/strong\u003e If your shop has only one voltage available and it doesn't match the version you prefer, a step-up or step-down transformer is an option — but adds cost and complexity. It's generally simpler to match the unit to your existing service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e120-Gallon Horizontal Tank\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStorage volume:\u003c\/strong\u003e 120 gallons of system-pressure storage buffers against short demand spikes. Tools that briefly demand more CFM than the compressor's output draw down the tank pressure rather than stalling the motor.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorizontal configuration:\u003c\/strong\u003e The tank lies on its side rather than standing vertically. Plumbing taps along the tank length are accessible at waist or ground level. Condensate drains at the tank end, at the lowest point. If your compressor room has height restrictions or you prefer easy access to the supply and drain connections, horizontal is the practical choice.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStability:\u003c\/strong\u003e Lower center of gravity than a vertical tank of the same capacity. More stable in environments with floor traffic and industrial vibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Requirements\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3-phase power is required:\u003c\/strong\u003e This unit does not run on single-phase residential or light commercial service. Confirm 3-phase availability at your location before purchasing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompressor room ventilation:\u003c\/strong\u003e Adequate airflow in the compressor room is required to prevent thermal shutdown. The unit generates heat during operation. Refer to the installation manual for minimum room volume and ventilation requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir distribution piping:\u003c\/strong\u003e Size your distribution main appropriately for the CFM output. Undersized piping causes pressure drop between the tank and your tools even when the compressor is running correctly. For most installations at this CFM level, a 3\/4\" or 1\" main is the starting point.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondensate and drying:\u003c\/strong\u003e A refrigerated air dryer downstream of the compressor is strongly recommended for spray painting and precision pneumatic tooling. Compressed air from any compressor carries moisture; a dryer removes it before it reaches your equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Specifications\u003c\/h3\u003e\n\u003cp\u003eDetailed specifications — full-load amps by voltage, exact CFM curves, discharge temperature, oil capacity, inlet and outlet port sizes, footprint dimensions, and weight — are available upon request. Contact us with your application details and we will provide the full technical data sheet.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecialist since 2016:\u003c\/strong\u003e We focus on professional shop equipment. We understand the difference between compressor classes and can walk you through voltage selection, installation planning, and the right accessories for your application.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree shipping:\u003c\/strong\u003e Ships free to commercial addresses in the continental US.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree tech support:\u003c\/strong\u003e Call 866-217-0063 before you order to confirm the right voltage and configuration. Call after installation if you have commissioning questions. We support what we sell.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty:\u003c\/strong\u003e Cast Air warranty applies. We manage the process if a claim is needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHonest sizing guidance:\u003c\/strong\u003e If 15HP is more than your shop needs, we will tell you. If your application really requires 20HP, we will tell you that instead. We are not here to upsell — we are here to make sure you get the right unit.\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":53342577754325,"sku":"R15312HG30","price":11112.05,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/heavy-duty-shop-rotary-screw-model-no-r15312hg30-also-230-or-460","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}