{"product_id":"castair-5-hp-1-phase-compressor-cube-pump-cfm-22-rpm-767-i51cuc1-s","title":"Castair 5 HP 1 Phase Compressor Cube Pump  CFM@ 22 RPM 767 I51CUC1-S","description":"\u003cp\u003eThe Castair I51CUC1-S is a 5HP single-phase industrial cube pump compressor with a mounted starter, producing 22 CFM at 767 RPM. The cube pump design sets this apart from a standard reciprocating compressor — the compact cubic pump configuration runs at lower RPM than conventional compressors, which translates directly to lower operating temperatures, quieter operation, and longer pump life between rebuilds. At 767 RPM with 22 CFM output, this unit is built to run continuously without the heat buildup that kills faster-spinning pumps.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: Full manufacturer specification sheets were not available at time of publication. The 22 CFM @ 767 RPM figure is sourced from the product name. Contact us to confirm PSI rating, 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-duty sustained output for shop environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCube Pump Design:\u003c\/strong\u003e Compact, low-profile pump runs cooler and quieter than standard reciprocating designs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22 CFM Output at 767 RPM:\u003c\/strong\u003e High volume delivery at low pump speed — better longevity, lower noise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-Phase Power (230V):\u003c\/strong\u003e Standard shop electrical compatible — no three-phase service needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounted Magnetic Starter:\u003c\/strong\u003e Integrated overload protection; wire to panel without sourcing additional hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Series Build:\u003c\/strong\u003e Castair commercial-grade construction\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\u003eCFM Output:\u003c\/strong\u003e 22 CFM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump RPM:\u003c\/strong\u003e 767 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 I51CUC1-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\u003ePSI \/ Tank Size:\u003c\/strong\u003e Contact us for confirmed specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCube Pump vs. Standard Reciprocating: Why It Matters\u003c\/h2\u003e\u003cp\u003eA conventional 5HP shop compressor runs its pump at 900-1100 RPM to produce its rated CFM. The cube pump on this unit makes the same air at 767 RPM — that is roughly 15-20% less mechanical stress per hour of operation. Over a 10-year shop life, the difference in pump wear is significant. If your compressor runs most of the day, the cube pump design is worth the price premium over a standard reciprocating unit.\u003c\/p\u003e\u003ch2\u003eWhat This Compressor Handles\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAuto repair and body shops with continuous air tool demand\u003c\/li\u003e\n\u003cli\u003eFacilities where compressor noise is a concern — the low-RPM cube pump runs noticeably quieter\u003c\/li\u003e\n\u003cli\u003eApplications requiring consistent air delivery over long operating periods\u003c\/li\u003e\n\u003cli\u003eFleet service centers and multi-bay shops on single-phase power\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h2\u003e\u003cp\u003eWe have worked with professional shops since 2016 and carry the full Cast Air cube pump and standard pump lineup. If you are deciding between a cube pump unit and a conventional reciprocating compressor, we can walk through the real-world trade-offs for your application. 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":53342563860693,"sku":"I51CUC1-S","price":5607.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/cube-1_2c1d3fa5-497c-4c30-90dd-6190559fcd10.jpg?v=1772652711","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-5-hp-1-phase-compressor-cube-pump-cfm-22-rpm-767-i51cuc1-s","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}