{"product_id":"castair-5-hp-3-phase-compressor-cube-pump-cfm-22-rpm-420-i73cuc2-s","title":"Castair 5 HP 3 Phase Compressor Cube Pump  CFM@ 22 RPM 420 I73CUC2-S","description":"\u003cp\u003eThe Castair I53CUC2-S is a 5HP three-phase cube pump compressor with a mounted starter, running at an ultra-low 420 RPM pump speed. At 420 RPM, this is the slowest-spinning pump in the Cast Air 5HP industrial lineup — a deliberate engineering choice that maximizes pump longevity at the cost of a higher purchase price. Three-phase motor operation adds efficiency and smooth startup characteristics. For a shop that runs its compressor hard, day in and day out, this combination of low RPM and three-phase efficiency is worth serious consideration.\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 Three-Phase Motor:\u003c\/strong\u003e Efficient commercial-duty motor operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCube Pump at 420 RPM:\u003c\/strong\u003e Exceptionally low pump speed — maximum longevity, minimum heat, minimum noise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-Phase Power:\u003c\/strong\u003e Requires three-phase electrical service\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounted Magnetic Starter:\u003c\/strong\u003e Factory-installed overload protection for clean three-phase installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Series Construction:\u003c\/strong\u003e Castair commercial-grade build\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 Three-phase (3-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 I53CUC2-S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 208V\/230V\/460V three-phase (confirm supply voltage 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 Three-Phase: The 767 vs. 420 RPM Decision\u003c\/h2\u003e\u003cp\u003eBoth units are 5HP three-phase cube pumps with mounted starters. The CUC1-S runs at 767 RPM; the CUC2-S runs at 420 RPM. The slower pump speed of the CUC2-S means lower pump temperatures per hour of operation, which extends time between rebuilds. If your compressor runs 8+ hours per day, the CUC2-S justifies its price premium through reduced maintenance and longer pump life. The CUC1-S is still a low-RPM design — just not as extreme as the 420 RPM CUC2-S.\u003c\/p\u003e\u003ch2\u003eWhat This Compressor Handles\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigh duty-cycle three-phase shops where the compressor rarely gets a rest\u003c\/li\u003e\n\u003cli\u003eFacilities where pump rebuild costs and downtime are factored into the purchasing decision\u003c\/li\u003e\n\u003cli\u003eAuto repair, body, fleet, and manufacturing environments on three-phase power with demanding air requirements\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h2\u003e\u003cp\u003eWe have supplied professional shops with Cast Air industrial compressors since 2016. If you are comparing the CUC1 and CUC2 RPM levels, or weighing cube pump vs. standard reciprocating for your shop's duty cycle, we can give you straight answers. Free shipping, full manufacturer warranty, and honest pre-sale guidance on every order.\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":53342566252757,"sku":"I53CUC2-S","price":7027.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/cube-1_375e8f34-149c-4033-b8e4-3d1551a1e89c.jpg?v=1772652717","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-5-hp-3-phase-compressor-cube-pump-cfm-22-rpm-420-i73cuc2-s","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}