{"product_id":"castair-5-hp-1-phase-compressor-cube-pump-cfm-22-rpm-420-i73cuc2-s","title":"Castair 5 HP 1 Phase Compressor Cube Pump  CFM@ 22 RPM 420 I73CUC2-S","description":"\u003cp\u003eThe Castair I51CUC2-S is a 5HP single-phase cube pump compressor with a mounted starter, running at 420 RPM to produce its rated CFM output. Where the I51CUC1-S runs at 767 RPM, this CUC2 configuration operates at 420 RPM — an even slower pump speed that pushes the low-RPM longevity advantage further. Slower pump speed means more pump life per hour of operation, and in a shop that runs its compressor all day, that margin adds up. The mounted starter and single-phase operation keep installation straightforward.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: Full manufacturer specification sheets were not available at time of publication. The 420 RPM figure is sourced from the product name data. Contact us to confirm CFM rating, PSI, tank size, and voltage before ordering.\u003c\/em\u003e\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 HP Industrial Motor:\u003c\/strong\u003e Commercial-grade sustained output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCube Pump at 420 RPM:\u003c\/strong\u003e Exceptionally low pump speed for maximum longevity and minimal heat buildup\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Phase Power (230V):\u003c\/strong\u003e Standard shop electrical compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounted Magnetic Starter:\u003c\/strong\u003e Factory-installed overload protection — wire and run\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Series Construction:\u003c\/strong\u003e Castair commercial-grade build quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsepower:\u003c\/strong\u003e 5 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e Single-phase (1-phase)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump RPM:\u003c\/strong\u003e 420 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Type:\u003c\/strong\u003e Cube pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStarter:\u003c\/strong\u003e Mounted magnetic starter included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e I51CUC2-S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 230V single-phase (verify at order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCFM \/ PSI \/ Tank Size:\u003c\/strong\u003e Contact us for confirmed specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCUC1-S vs. CUC2-S: Which Is Right for Your Shop?\u003c\/h2\u003e\u003cp\u003eThe CUC1-S runs at 767 RPM; the CUC2-S runs at 420 RPM. Both are cube pump designs, both are 5HP single-phase. The CUC2-S slower pump speed means longer pump life and lower operating temperatures, which matters most in shops where the compressor runs nearly continuously. If your compressor runs 6+ hours a day, the slower-speed CUC2-S is worth serious consideration over the CUC1-S.\u003c\/p\u003e\u003ch2\u003eWhat This Compressor Handles\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigh-duty-cycle shops where the compressor rarely has an extended off-cycle\u003c\/li\u003e\n\u003cli\u003eFacilities where heat buildup and pump wear are the primary concerns\u003c\/li\u003e\n\u003cli\u003eAuto repair, body, and fleet service shops on single-phase power\u003c\/li\u003e\n\u003cli\u003eAny application where maximum pump life is the priority over lowest initial cost\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h2\u003e\u003cp\u003eWe have supplied professional shops with compressors and equipment since 2016. We carry the full Cast Air cube pump line and can help you decide between CUC1 and CUC2 RPM configurations based on your actual duty cycle. Free shipping, full manufacturer warranty, and real pre-sale support.\u003c\/p\u003e\u003cp\u003eCall for pricing and availability.\u003c\/p\u003e\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":53342563958997,"sku":"I51CUC2-S","price":6919.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/cube-1_9d561226-e762-43ed-aea7-df8fe44b3d97.jpg?v=1772652713","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-5-hp-1-phase-compressor-cube-pump-cfm-22-rpm-420-i73cuc2-s","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}