{"product_id":"heavy-duty-shop-rotary-screw-model-no-r15312vg30-also-230-or-460","title":"Heavy Duty Shop Rotary  -  Screw - Model No. : R15312VG30 - Also 230 or 460","description":"\n\u003ch2\u003eCast Air R15312VG30 — 15HP 3-Phase Rotary Screw Air Compressor, Vertical Tank (230V or 460V)\u003c\/h2\u003e\n\n\u003cp\u003eThe R15312VG30 is Cast Air's 15HP 3-phase rotary screw compressor in a vertical tank configuration. If your shop floor is tight and you need serious compressor capacity without surrendering a large footprint, this is the configuration to consider. The vertical tank holds the same volume as an equivalent horizontal unit while standing upright, freeing up wall space and floor lanes that would otherwise be blocked.\u003c\/p\u003e\n\n\u003cp\u003eThis listing covers the base R15312VG30 series, which is available in either 230V 3-phase or 460V 3-phase. Voltage must be specified when ordering — see the voltage guidance section below before you place an order.\u003c\/p\u003e\n\n\u003ch3\u003eRotary Screw vs. Reciprocating — Why It Matters at 15HP\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuty cycle:\u003c\/strong\u003e Rotary screw compressors are designed for continuous operation. A 15HP reciprocating piston compressor running at 100% duty cycle will overheat and wear prematurely. A rotary screw at the same HP rating can run all day without thermal stress.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAirflow consistency:\u003c\/strong\u003e Rotary screw units deliver consistent CFM without the pressure waves you get from a piston design. For spray guns, media blasters, and precision air tools, that consistency matters.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSound levels:\u003c\/strong\u003e Rotary screw compressors are substantially quieter than equivalent reciprocating units — an important factor in shops where techs are working nearby all day.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaintenance profile:\u003c\/strong\u003e Screw element oil changes, air\/oil separator service, and inlet filter replacements are the primary service items — no valve kits, no piston rings, no rod bearings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVertical Tank Configuration — Who Chooses This Over Horizontal\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFloor footprint:\u003c\/strong\u003e A horizontal 120-gallon tank typically runs 7–8 feet in length. The vertical configuration takes roughly half the floor length at the cost of additional height. In a shop with limited linear floor space along walls, vertical wins.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner placement:\u003c\/strong\u003e Vertical tanks fit neatly into corners or against narrow wall sections where a horizontal tank would protrude into a work lane.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrice consideration:\u003c\/strong\u003e The vertical configuration (R15312VG30, $11,745) is priced approximately $633 higher than the equivalent horizontal unit (R15312HG30, $11,112). That premium reflects the tank configuration — the compressor itself is the same 15HP rotary screw unit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChoose horizontal if:\u003c\/strong\u003e You have the floor space and want lower cost. Choose vertical if floor space is the constraint.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e15HP Output — What It Runs in a Real Shop\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTypical CFM output:\u003c\/strong\u003e A 15HP rotary screw compressor typically delivers 50–65 CFM at 100 PSI, though exact figures vary by manufacturer design and operating pressure. Contact us for confirmed specs on this specific unit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-tool operation:\u003c\/strong\u003e At 50+ CFM, you can run a spray gun (12–14 CFM), two impact wrenches (5–8 CFM each), a die grinder (8–12 CFM), and still have capacity for incidental tool use simultaneously.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody shop relevance:\u003c\/strong\u003e A single spray gun operator running base\/clear won't load a 15HP unit. The headroom exists for the rest of the shop to keep working while paint is being sprayed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-demand scenario:\u003c\/strong\u003e If you're running multiple spray booths simultaneously, or you have a very large fleet facility with lifts, pneumatic tools, and a tire shop all running at once, consider the 20HP R20312 series instead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVoltage Selection — 230V vs. 460V for This Unit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e230V 3-phase:\u003c\/strong\u003e If your shop has 3-phase at 208–240V, this is straightforward. Verify your panel has adequate breaker capacity for a 15HP motor — expect approximately 46–52 amps at full load on a 230V 3-phase circuit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e460V 3-phase:\u003c\/strong\u003e At 460V, the same 15HP motor draws roughly half the amperage — approximately 22–26 amps. This means smaller wire runs, smaller breakers, and less heat in your electrical infrastructure. If your facility has 460V 3-phase available, it is generally the better choice at this power level.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDo not guess on voltage:\u003c\/strong\u003e Installing a 230V unit on a 460V circuit, or vice versa, will destroy the motor. Know your service voltage before ordering. If unsure, have your electrician verify.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle-phase is not available\u003c\/strong\u003e on this unit. The R15312VG30 requires 3-phase power. If your shop has single-phase only, a different compressor class is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Considerations\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLocation:\u003c\/strong\u003e Place the compressor in a well-ventilated area. Rotary screw compressors generate heat during operation — adequate airflow around the unit is required for proper thermal management.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElectrical rough-in:\u003c\/strong\u003e Coordinate with an electrician before delivery. At 15HP 3-phase, you need a dedicated circuit with appropriate breaker sizing per NEC requirements for motor loads (typically 175–250% of FLA for breaker sizing).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir distribution:\u003c\/strong\u003e Size your header pipe for the CFM output of this unit. Undersized piping creates back-pressure and reduces effective tool performance across the shop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondensate management:\u003c\/strong\u003e Rotary screw compressors produce condensate — plan for a drain system or auto-drain valve on the tank and at low points in your air lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e R15312VG30\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompressor type:\u003c\/strong\u003e Rotary screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 15 HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-phase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank configuration:\u003c\/strong\u003e Vertical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable voltage:\u003c\/strong\u003e 230V or 460V (specify at time of order)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eList price:\u003c\/strong\u003e $11,745.30\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCFM output and operating pressure:\u003c\/strong\u003e Contact us for confirmed manufacturer specifications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTank size:\u003c\/strong\u003e Contact us to confirm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Detailed manufacturer specifications including CFM output, operating pressure range, tank capacity, and dimensions are pending confirmation. Call us and we will get you the exact spec sheet before you commit to purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecialist since 2016:\u003c\/strong\u003e We focus on professional shop equipment — compressors, diagnostic tools, and the infrastructure that keeps a shop running. We are not a big-box retailer guessing at what you need.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree shipping:\u003c\/strong\u003e Freight on a unit this size is significant. We include it.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFree technical support:\u003c\/strong\u003e Call us at 866-217-0063. We will help you confirm the right voltage, the right tank configuration, and the right HP level for your actual shop load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull manufacturer warranty:\u003c\/strong\u003e Covered under Cast Air's warranty program. We handle the process — you do not deal with the manufacturer directly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHonest guidance:\u003c\/strong\u003e If the 15HP vertical is not the right unit for your shop, we will tell you. We would rather help you buy the right compressor once than have you call back frustrated.\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\n","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342577983701,"sku":"R15312VG30","price":11745.3,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/heavy-duty-shop-rotary-screw-model-no-r15312vg30-also-230-or-460","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}