{"product_id":"heavy-duty-shop-tandem-model-no-t25312hc2-s","title":"Heavy Duty Shop Tandem - Model No.: T25312HC2-S","description":"\u003ch2\u003eCast Air Heavy Duty Shop Tandem Air Compressor — T25312HC2-S\u003c\/h2\u003e\n\u003cp\u003eThe T25312HC2-S puts two 25 HP motors on the HC2 cast iron pump platform at 710 RPM, paired with a 120-gallon horizontal ASME tank. Combined output is 218 CFM at 0 PSI and 180 CFM at 175 PSI. At $8,292, this is the most economical entry point into 25 HP tandem territory — you get serious production-level CFM output on a compact 120-gallon footprint. This compressor is built for high-throughput collision repair, large fleet maintenance bays, automotive dealership service departments, and any shop where sustained high air demand is the daily reality. At 180 CFM sustained at 175 PSI, every tool in a 10-bay shop can run simultaneously without pressure starvation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat 180 CFM at 175 PSI Handles\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEquivalent to running approximately 36 impact wrenches simultaneously at 5 CFM each\u003c\/li\u003e\n\u003cli\u003eSupports 12+ DA sanders running full-speed at 14 CFM each\u003c\/li\u003e\n\u003cli\u003eRuns multiple spray guns, plasma cutters, and air-powered equipment across a large facility without pressure drop\u003c\/li\u003e\n\u003cli\u003eProvides genuine headroom — you are not at the machine's limit, which means pressure stays stable and tools perform at rated spec\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 Cylinders, heads, and crankcase on both 25 HP pump assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e710 RPM (HC2 configuration at 25 HP):\u003c\/strong\u003e Slow-speed operation for reduced noise, lower operating temperature, and extended service life compared to high-speed import equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapered roller bearings:\u003c\/strong\u003e Both ends of each crankshaft. Required for sustained high-load operation at this horsepower level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision steel connecting rods:\u003c\/strong\u003e Automotive-type rod insert bearings at the crank, needle bearings at the wrist pin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc and spring valves:\u003c\/strong\u003e Field-serviceable. Simple to inspect and rebuild in the field without specialized tooling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-ring pistons:\u003c\/strong\u003e Higher efficiency and less oil carry-over into the discharge air.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal unloader:\u003c\/strong\u003e Loadless start every cycle. At 50 HP total motor power, the centrifugal unloader prevents the high inrush current that damages contactors and motor insulation over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTank and Controls\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e120-gallon horizontal ASME tank:\u003c\/strong\u003e Powder-coated, channel base. At 180 CFM of output, this pump configuration recovers the 120-gallon tank quickly. The 240-gallon version (T25324HC2-S) is the better choice if your demand has significant short-burst spikes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo magnetic motor starters — mounted and wired:\u003c\/strong\u003e Factory-installed on both pump sides. Connect to 3-phase service and operate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME safety valves:\u003c\/strong\u003e Factory-set on both sides.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal belt guards:\u003c\/strong\u003e Fully enclosed on both pump assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper discharge and unloader tubes:\u003c\/strong\u003e Copper throughout the hot side of both assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,725 RPM industrial motors:\u003c\/strong\u003e 15% service factor or higher on both 25 HP motors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Factory-Mounted Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Oil Control (#6304x2M):\u003c\/strong\u003e Automatic oil-level shutdown on both pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHour Meter 230V (#HRM75x2M) or 460V (#HRM460x2M):\u003c\/strong\u003e Independent runtime tracking per pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternator Relay (#ALT230M or #ALT460M):\u003c\/strong\u003e Alternates lead pump each cycle to equalize wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Auto Drain (#SDV03M):\u003c\/strong\u003e Timed solenoid condensate drain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Control (#DC2x2M):\u003c\/strong\u003e Start\/stop and throttle control modes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Noise Silencers (#SA100x4M):\u003c\/strong\u003e Reduces intake noise on both pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAftercooler (#BGAC2x2M, 100 CFM rated for 25 HP units):\u003c\/strong\u003e Belt-guard-mounted aftercooler sized for the higher output of the 25 HP configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll Options Package (#AOC2D):\u003c\/strong\u003e All asterisk options at 10% off combined price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Is in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTwo cast iron two-stage HC2 pump and motor assemblies (25 HP each) on a single rigid frame\u003c\/li\u003e\n\u003cli\u003e120-gallon horizontal powder-coated ASME tank with channel base\u003c\/li\u003e\n\u003cli\u003eTwo magnetic motor starters, mounted and wired at the factory\u003c\/li\u003e\n\u003cli\u003eTwo ASME safety valves\u003c\/li\u003e\n\u003cli\u003eTwo metal belt guards (fully enclosed)\u003c\/li\u003e\n\u003cli\u003eCopper discharge and unloader tubes on both sides\u003c\/li\u003e\n\u003cli\u003ePressure switch for each pump\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eOptional accessories are factory-installed at time of order and are not included unless specified at purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eAvailable Configurations — 25 HP Shop Tandem Lineup\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eT25312HC2-S:\u003c\/strong\u003e 2×25 HP, 710 RPM, 218 CFM \/ 180 CFM @ 175 PSI, 120-gal — $8,292 (this unit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT25312HC3-S:\u003c\/strong\u003e 2×25 HP, 710 RPM, 218 CFM \/ 180 CFM @ 175 PSI, 120-gal — $10,924 (larger\/slower pump)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT25324HC2-S:\u003c\/strong\u003e 2×25 HP, 710 RPM, 218 CFM \/ 180 CFM @ 175 PSI, 240-gal — $9,826\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT25324HC3-S:\u003c\/strong\u003e 2×25 HP, 710 RPM, 218 CFM \/ 180 CFM @ 175 PSI, 240-gal — $12,458\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen Does a Shop Need This vs. Stepping Up or Down?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep down to 20 HP tandem:\u003c\/strong\u003e If your sustained demand is under 140 CFM, the T20312HC2-S at $7,974 handles it with the same platform architecture for less money. The 25 HP step-up is for shops that genuinely use 140+ CFM on a regular basis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThis unit is right when:\u003c\/strong\u003e You operate a large collision center, a high-volume fleet maintenance facility, or any production environment where multiple high-demand processes run simultaneously. 180 CFM at working pressure runs a serious shop with meaningful headroom.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStep up to HC3 or 240-gallon:\u003c\/strong\u003e If your compressor runs all day without significant off time, the T25312HC3-S ($10,924) provides the HC3 pump's longer service intervals. If demand spikes are the issue, the T25324HC2-S ($9,826) adds 120 gallons of buffer storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications — T25312HC2-S\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e T25312HC2-S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 2 × 25 HP (50 HP total)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e 3-phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump RPM:\u003c\/strong\u003e 710 (HC2 configuration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM @ 0 PSI:\u003c\/strong\u003e 218 (combined, both pumps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM @ 175 PSI:\u003c\/strong\u003e 180 (combined, both pumps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Capacity:\u003c\/strong\u003e 120 gallons, horizontal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank Type:\u003c\/strong\u003e ASME-certified, powder-coated, channel base\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Speed:\u003c\/strong\u003e 1,725 RPM, 15% service factor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Type:\u003c\/strong\u003e Two-stage, all cast iron, centrifugal unloader\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e Two magnetic motor starters, mounted and wired\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Tubing:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Guard:\u003c\/strong\u003e Metal, fully enclosed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrice:\u003c\/strong\u003e $8,292.35\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Exact LxWxH dimensions and shipping weight for this configuration are not individually published by Castair. Contact us for freight details before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy From Air Compressor Factory Direct?\u003c\/h3\u003e\n\u003cp\u003eWe have specialized in industrial air compressor sales since 2016. At the 25 HP tandem level, we can help you determine whether the HC2 or HC3 pump, and whether 120 or 240-gallon storage, actually fits your operation — before you commit to a $8,000–12,000 purchase.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping\u003c\/strong\u003e to a commercial address with a loading dock or forklift\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree tech support at 866-217-0063\u003c\/strong\u003e — call before you buy to confirm the right configuration for your shop's actual demand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Cast Air manufacturer warranty\u003c\/strong\u003e — handled directly through us\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonest guidance:\u003c\/strong\u003e We carry the full tandem lineup and will tell you if a different model fits better.\u003c\/li\u003e\n\u003c\/ul\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":53342605869269,"sku":"T25312HC2-S","price":8292.35,"currency_code":"USD","in_stock":true}],"url":"https:\/\/aircompressorfactorydirect.com\/products\/heavy-duty-shop-tandem-model-no-t25312hc2-s","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}