{"product_id":"champion-ca-series-oil-less-rotary-scroll-bare-air-end","title":"Champion CA-Series Oil-Less Rotary Scroll Bare Air End | SC3-5, SC5, SC7 \u0026 SC10","description":"\u003ch2\u003eChampion CA-Series Oil-Less Rotary Scroll Bare Air End\u003c\/h2\u003e\n\u003cp\u003eThis listing covers the four \u003cstrong\u003ebare air ends\u003c\/strong\u003e that power the entire Champion CA-Series oil-less rotary scroll range: the \u003cstrong\u003eSC3-5, SC5, SC7 and SC10\u003c\/strong\u003e. A bare air end is the compression element on its own, supplied as a complete scroll pump assembly with integral cooling fan, non-return valve and mounting foot, but without motor, starter, control panel, receiver or aftercooler. It is what you order when you are rebuilding or re-powering an existing CA-Series package, when you are integrating 100% oil-free compression into an OEM machine, or when you want a spare compression element on the shelf for a critical air system.\u003c\/p\u003e\n\u003cp\u003eChampion's scroll design uses a single orbiting scroll running against a fixed scroll, with no oil anywhere in the compression chamber. There are no rings, no vanes and no valves in the air path, so the discharge air is \u003cstrong\u003e100% oil-free by design rather than by filtration\u003c\/strong\u003e. The body is aluminium with a special internal coating for durability, the bearings are re-greasable, and the whole assembly is rated for continuous duty at very low noise and vibration. That combination is why the same air end ends up in laboratory benches, dental and medical plant rooms, food and packaging lines, and OEM equipment where a lubricated compressor is simply not an option.\u003c\/p\u003e\n\u003cp\u003eEvery air end on this page is a genuine Champion factory assembly ordered by its Champion order-entry number. Prices are from the \u003cstrong\u003eChampion Oil-Less Compressor Price List effective August 15, 2026\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eModel Selection Chart\u003c\/h2\u003e\n\u003cp\u003ePick the air end by the horsepower and discharge pressure of the package it has to serve, then pick Industrial or Medical duty. Both duties share identical construction, performance, weight and list price; they differ only in the order-entry number Champion uses to route and document the part.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAir End\u003c\/th\u003e\n\u003cth\u003eHP Range\u003c\/th\u003e\n\u003cth\u003eRated Capacity\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003eIndustrial Order No.\u003c\/th\u003e\n\u003cth\u003eMedical Order No.\u003c\/th\u003e\n\u003cth\u003eList Price\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSC3-5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 \/ 5 HP\u003c\/td\u003e\n\u003ctd\u003e9.2 ACFM @ 116 PSIG, 7.2 ACFM @ 140 PSIG, 12.5 ACFM @ 140 PSIG\u003c\/td\u003e\n\u003ctd\u003e45 lb\u003c\/td\u003e\n\u003ctd\u003e306SIA8058\u003c\/td\u003e\n\u003ctd\u003e329SIA8058\u003c\/td\u003e\n\u003ctd\u003e$7,741\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSC5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 HP\u003c\/td\u003e\n\u003ctd\u003e13.9 ACFM @ 116 PSIG\u003c\/td\u003e\n\u003ctd\u003e45 lb\u003c\/td\u003e\n\u003ctd\u003e307SIA8058\u003c\/td\u003e\n\u003ctd\u003e330SIA8058\u003c\/td\u003e\n\u003ctd\u003e$8,114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSC7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 \/ 7.5 HP\u003c\/td\u003e\n\u003ctd\u003e14.8 ACFM @ 116 PSIG, 22.1 ACFM @ 116 PSIG, 16.0 ACFM @ 140 PSIG\u003c\/td\u003e\n\u003ctd\u003e61 lb\u003c\/td\u003e\n\u003ctd\u003e341SIA8058\u003c\/td\u003e\n\u003ctd\u003e339SIA8058\u003c\/td\u003e\n\u003ctd\u003e$9,807\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSC10\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 HP\u003c\/td\u003e\n\u003ctd\u003e31.6 ACFM @ 116 PSIG, 26.3 ACFM @ 140 PSIG\u003c\/td\u003e\n\u003ctd\u003e62 lb\u003c\/td\u003e\n\u003ctd\u003e342SIA8058\u003c\/td\u003e\n\u003ctd\u003e340SIA8058\u003c\/td\u003e\n\u003ctd\u003e$12,672\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat \"Industrial\" and \"Medical\" Mean Here\u003c\/h2\u003e\n\u003cp\u003eChampion prints two identical specification tables on the bare air end page, one headed INDUSTRIAL and one headed MEDICAL, with the same models, the same capacities, the same weights, the same dimensions and the same list prices, but a different order-entry number in each.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial duty\u003c\/strong\u003e air ends (306SIA8058, 307SIA8058, 341SIA8058, 342SIA8058) are the service and OEM part for the CA-Series S open industrial and CA-Series ES enclosed industrial packages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical duty\u003c\/strong\u003e air ends (329SIA8058, 330SIA8058, 339SIA8058, 340SIA8058) are the service part for CA-Series S Medical Air Systems built to NFPA 99.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are replacing an air end in an existing machine, \u003cstrong\u003eorder the duty that matches the machine\u003c\/strong\u003e so the part number on your service record matches the part number Champion shipped. If you are specifying a new OEM build, choose Industrial unless the end application is a medical air plant. When in doubt, send us the serial number of the package and we will confirm which number Champion built it with.\u003c\/p\u003e\n\n\u003ch2\u003ePerformance by Operating Point\u003c\/h2\u003e\n\u003cp\u003eA single air end covers more than one horsepower and pressure combination, because the delivered capacity depends on the speed it is driven at. The table below is Champion's full published matrix. Note that the SC3-5 covers both 3 HP ratings and the 5 HP \/ 140 PSIG rating, while the SC5 covers the 5 HP \/ 116 PSIG rating. That is not a misprint: a CA-S5 package uses the SC5 air end when it is built for 116 PSIG and the SC3-5 air end when it is built for 140 PSIG.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAir End\u003c\/th\u003e\n\u003cth\u003eHorsepower\u003c\/th\u003e\n\u003cth\u003eMax Working Pressure\u003c\/th\u003e\n\u003cth\u003eACFM at Max Pressure\u003c\/th\u003e\n\u003cth\u003eAir End RPM\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cstrong\u003eSC3-5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 HP (2.2 kW)\u003c\/td\u003e\n\u003ctd\u003e116 PSIG (8.0 bar)\u003c\/td\u003e\n\u003ctd\u003e9.2\u003c\/td\u003e\n\u003ctd\u003e2200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 HP (2.2 kW)\u003c\/td\u003e\n\u003ctd\u003e140 PSIG (9.6 bar)\u003c\/td\u003e\n\u003ctd\u003e7.2\u003c\/td\u003e\n\u003ctd\u003e2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 HP (3.7 kW)\u003c\/td\u003e\n\u003ctd\u003e140 PSIG (9.6 bar)\u003c\/td\u003e\n\u003ctd\u003e12.5\u003c\/td\u003e\n\u003ctd\u003e2900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"1\"\u003e\u003cstrong\u003eSC5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 HP (3.7 kW)\u003c\/td\u003e\n\u003ctd\u003e116 PSIG (8.0 bar)\u003c\/td\u003e\n\u003ctd\u003e13.9\u003c\/td\u003e\n\u003ctd\u003e3000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003e\u003cstrong\u003eSC7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 HP (3.7 kW)\u003c\/td\u003e\n\u003ctd\u003e116 PSIG (8.0 bar)\u003c\/td\u003e\n\u003ctd\u003e14.8\u003c\/td\u003e\n\u003ctd\u003e2200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7.5 HP (5.5 kW)\u003c\/td\u003e\n\u003ctd\u003e116 PSIG (8.0 bar)\u003c\/td\u003e\n\u003ctd\u003e22.1\u003c\/td\u003e\n\u003ctd\u003e3340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7.5 HP (5.5 kW)\u003c\/td\u003e\n\u003ctd\u003e140 PSIG (9.6 bar)\u003c\/td\u003e\n\u003ctd\u003e16.0\u003c\/td\u003e\n\u003ctd\u003e2650\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003e\u003cstrong\u003eSC10\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 HP (7.5 kW)\u003c\/td\u003e\n\u003ctd\u003e116 PSIG (8.0 bar)\u003c\/td\u003e\n\u003ctd\u003e31.6\u003c\/td\u003e\n\u003ctd\u003e3750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 HP (7.5 kW)\u003c\/td\u003e\n\u003ctd\u003e140 PSIG (9.6 bar)\u003c\/td\u003e\n\u003ctd\u003e26.3\u003c\/td\u003e\n\u003ctd\u003e3216\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eShared Technical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eAir End\u003c\/th\u003e\n\u003cth\u003eInlet Connection\u003c\/th\u003e\n\u003cth\u003eOutlet Connection\u003c\/th\u003e\n\u003cth\u003eDimensions (L x W x H)\u003c\/th\u003e\n\u003cth\u003eEst. Weight\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSC3-5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4\" FNPT\u003c\/td\u003e\n\u003ctd\u003e3\/8\" MNPT\u003c\/td\u003e\n\u003ctd\u003e14.7 x 13.7 x 11.4 in (373 x 348 x 290 mm)\u003c\/td\u003e\n\u003ctd\u003e45 lb (20 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSC5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4\" FNPT\u003c\/td\u003e\n\u003ctd\u003e3\/8\" MNPT\u003c\/td\u003e\n\u003ctd\u003e14.7 x 13.7 x 11.4 in (373 x 348 x 290 mm)\u003c\/td\u003e\n\u003ctd\u003e45 lb (20 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSC7\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4\" FNPT\u003c\/td\u003e\n\u003ctd\u003e3\/8\" MNPT\u003c\/td\u003e\n\u003ctd\u003e16.97 x 16.57 x 13.94 in (431 x 421 x 354 mm)\u003c\/td\u003e\n\u003ctd\u003e61 lb (28 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSC10\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4\" FNPT\u003c\/td\u003e\n\u003ctd\u003e1\/2\" MNPT\u003c\/td\u003e\n\u003ctd\u003e17.29 x 16.57 x 13.94 in (439 x 421 x 354 mm)\u003c\/td\u003e\n\u003ctd\u003e62 lb (28 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression:\u003c\/strong\u003e oil-less orbiting scroll, single stage, 100% duty cycle, continuous operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e aluminium casting with a special internal coating for durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e integral fan for maximum cooling, no external blower required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings:\u003c\/strong\u003e re-greasable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValving:\u003c\/strong\u003e non-return (check) valve included on the discharge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise and vibration:\u003c\/strong\u003e very low noise, extremely low vibration, suited to occupied space and OEM enclosures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint:\u003c\/strong\u003e compact, designed for OEM integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eMaintenance Intervals\u003c\/h2\u003e\n\u003cp\u003eChampion publishes the tip seal and bearing service life for the bare air end directly, and the interval depends on the pressure the air end is set up for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e116 PSIG option:\u003c\/strong\u003e 10,000 hour tip seal life, 10,000 hour bearing maintenance interval\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e140 PSIG option:\u003c\/strong\u003e 5,000 hour tip seal life, 5,000 hour bearing maintenance interval\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is the single most important commercial fact about scroll pressure selection. Running a scroll air end at 140 PSIG rather than 116 PSIG halves the interval between tip seal replacements. If your system can be re-balanced to run at 116 PSIG, the lifetime maintenance cost of the machine falls by roughly half. We are happy to talk that calculation through against your actual plant pressure.\u003c\/p\u003e\n\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRebuilding a CA-Series package\u003c\/strong\u003e rather than replacing the whole machine, where the tank, motor, panel and aftercooler are sound\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM integration\u003c\/strong\u003e into analytical instruments, laboratory equipment, dental chairs, packaging machinery and printing equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical air plant service\u003c\/strong\u003e on NFPA 99 systems where the air end is the wear part and downtime has to be measured in hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCritical spares\u003c\/strong\u003e held on site for food, pharmaceutical, electronics and laboratory air systems where any oil carryover is a product-loss event\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiplex module replacement\u003c\/strong\u003e on duplex, triplex and quadraplex CA-Series systems, where one module can be swapped while the others carry the load\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eService, Accessories and the Rest of the CA-Series\u003c\/h2\u003e\n\u003cp\u003eIf you need the complete packaged machine rather than the compression element, these are the CA-Series listings this air end belongs to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/champion-ca-series-s-oil-free-rotary-scroll-air-compressor\"\u003eChampion CA-Series S Oil-Free Rotary Scroll Air Compressor, open industrial, 3 to 10 HP\u003c\/a\u003e and its \u003ca href=\"\/products\/champion-ca-series-s-scroll-factory-installed-options\"\u003efactory-installed options and adders\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/champion-ca-series-es-oil-free-rotary-scroll-air-compressor\"\u003eChampion CA-Series ES Oil-Free Rotary Scroll Air Compressor, enclosed industrial, 5 to 10 HP\u003c\/a\u003e and its \u003ca href=\"\/products\/champion-ca-series-es-factory-installed-options\"\u003efactory-installed options and adders\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/champion-ca-series-s-oil-free-rotary-scroll-medical-air-system\"\u003eChampion CA-Series S Oil-Free Rotary Scroll Medical Air System, duplex through quadraplex\u003c\/a\u003e and its \u003ca href=\"\/products\/champion-ca-series-s-medical-air-system-factory-installed-options\"\u003efactory-installed options and adders\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse the wider ranges: \u003ca href=\"\/collections\/scroll-air-compressors\"\u003eScroll Air Compressors\u003c\/a\u003e, \u003ca href=\"\/collections\/oil-free-air-compressors\"\u003eOil-Free Air Compressors\u003c\/a\u003e, \u003ca href=\"\/collections\/pumps\"\u003eAir Compressor Pumps\u003c\/a\u003e and everything we carry from \u003ca href=\"\/collections\/champion\"\u003eChampion\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eTip seal kits, bearing kits, intake filters and gaskets for these air ends are stocked service items. Tell us the air end model and the hours on the machine and we will quote the correct kit.\u003c\/p\u003e\n\n\u003ch2\u003eOrdering Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA bare air end is the compression element only.\u003c\/strong\u003e Motor, drive, starter, control panel, receiver, aftercooler, moisture separator and intake filter are not included. If you need any of those, order the packaged compressor instead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder by duty.\u003c\/strong\u003e Industrial and Medical air ends are physically the same part at the same price but carry different Champion order-entry numbers. The SKU shown on each variant is the Champion order-entry number, used verbatim.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeights are Champion's published estimated weights\u003c\/strong\u003e from the August 2026 price list: 45 lb on the SC3-5 and SC5, 61 lb on the SC7, 62 lb on the SC10.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecify the pressure\u003c\/strong\u003e you intend to run at when you order, because the 116 PSIG and 140 PSIG build-ups differ in drive speed and in maintenance interval.\u003c\/li\u003e\n\u003cli\u003eThese air ends are subject to Champion's standard rotary discount structure. Freight on CA-Series scroll product is prepaid and add, shipping from Princeton, IL 61356.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAlso Available by Quote\u003c\/h2\u003e\n\u003cp\u003eChampion prints the following CA-Series scroll items as part numbers with no published list price. We can quote any of them against a current factory price:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMassachusetts receiver risers:\u003c\/strong\u003e 306SIS4013 (30 gallon horizontal), 307SIS4013 (80 and 120 gallon horizontal), 308SIS4013 (240 gallon horizontal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip seal and bearing service kits\u003c\/strong\u003e for the SC3-5, SC5, SC7 and SC10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStand-alone air receivers\u003c\/strong\u003e in 30 through 660 gallon, standard, vinyl lined and galvanized, 200 and 300 PSIG MWP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDew point and CO monitoring\u003c\/strong\u003e instruments for medical and laboratory air plant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Buy From Warthog\u003c\/h2\u003e\n\u003cp\u003eWarthog Air Compressor Store is an authorized Champion distributor. That matters more on a bare air end than on almost anything else we sell, because an air end bought outside the authorized channel carries no factory warranty and no guarantee that the order-entry number matches the machine it is going into. Everything on this page is priced straight off Champion's own August 2026 price list, not marked up from a grey-market source.\u003c\/p\u003e\n\u003cp\u003eWe will help you confirm the right air end before you buy. Send us the model and serial number of the package, or a photograph of the data plate, and we will tell you which of these four air ends Champion built it with and whether the Industrial or Medical number applies. If the economics favour a new packaged compressor over a rebuild, we will tell you that too.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat exactly is in the box?\u003c\/h3\u003e\n\u003cp\u003eThe complete scroll compression element: fixed and orbiting scrolls, the aluminium housing, the drive shaft and bearings, the integral cooling fan and shroud, the mounting foot and the discharge non-return valve. No motor, no belt, no starter, no panel, no tank, no aftercooler.\u003c\/p\u003e\n\u003ch3\u003eCan I fit an SC7 where an SC5 was?\u003c\/h3\u003e\n\u003cp\u003eNot as a drop-in. The SC7 is a physically larger assembly (16.97 x 16.57 x 13.94 in against 14.7 x 13.7 x 11.4 in) and 16 lb heavier, and the motor, drive and electricals of an SC5 package are not sized for it. Replace like for like unless Champion has issued a specific upgrade path for your package.\u003c\/p\u003e\n\u003ch3\u003eWhy do the SC3-5 and the SC5 overlap at 5 HP?\u003c\/h3\u003e\n\u003cp\u003eBecause the pressure differs. The SC3-5 covers 5 HP at 140 PSIG, turning 2,900 RPM for 12.5 ACFM. The SC5 covers 5 HP at 116 PSIG, turning 3,000 RPM for 13.9 ACFM. A CA-S5 package therefore ships with one or the other depending on how it was ordered, which is exactly why you should check the data plate before ordering a replacement.\u003c\/p\u003e\n\u003ch3\u003eIs the discharge air really oil-free?\u003c\/h3\u003e\n\u003cp\u003eYes. There is no oil in the compression chamber at all, so the air leaving the air end is Class 0 oil-free by design. That is a different thing from a lubricated compressor fitted with coalescing filters, where the air is only as clean as the last filter change.\u003c\/p\u003e\n\u003ch3\u003eHow long do the tip seals last?\u003c\/h3\u003e\n\u003cp\u003e10,000 hours on a 116 PSIG build and 5,000 hours on a 140 PSIG build. The tip seal is the defined wear part of a scroll compressor and replacing it on schedule is what keeps the capacity from drifting down.\u003c\/p\u003e\n\u003ch3\u003eDo you stock these?\u003c\/h3\u003e\n\u003cp\u003eAvailability moves. Call or email with the order-entry number and we will give you a current factory lead time before you commit.\u003c\/p\u003e\n\u003ch3\u003eCan I get a rebuilt or exchange air end instead?\u003c\/h3\u003e\n\u003cp\u003eChampion does not publish an exchange programme for the CA-Series scroll air ends in the current price list. If cost is the driver, ask us to price the tip seal and bearing kit against a new air end; on lower-hour machines the kit is usually the better buy.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePrices and specifications are taken from the Champion Oil-Less Compressor Price List effective August 15, 2026, and are subject to change without notice. Champion is a Gardner Denver brand.\u003c\/em\u003e\u003c\/p\u003e","brand":"Champion","offers":[{"title":"SC3-5 \/ Industrial","offer_id":67687976239379,"sku":"306SIA8058","price":5853.0,"currency_code":"USD","in_stock":true},{"title":"SC5 \/ Industrial","offer_id":67687976272147,"sku":"307SIA8058","price":6135.0,"currency_code":"USD","in_stock":true},{"title":"SC7 \/ Industrial","offer_id":67687976304915,"sku":"341SIA8058","price":7416.0,"currency_code":"USD","in_stock":true},{"title":"SC10 \/ Industrial","offer_id":67687976337683,"sku":"342SIA8058","price":9582.0,"currency_code":"USD","in_stock":true},{"title":"SC3-5 \/ Medical","offer_id":67687976370451,"sku":"329SIA8058","price":5853.0,"currency_code":"USD","in_stock":true},{"title":"SC5 \/ Medical","offer_id":67687976403219,"sku":"330SIA8058","price":6135.0,"currency_code":"USD","in_stock":true},{"title":"SC7 \/ Medical","offer_id":67687976435987,"sku":"339SIA8058","price":7416.0,"currency_code":"USD","in_stock":true},{"title":"SC10 \/ Medical","offer_id":67687976468755,"sku":"340SIA8058","price":9582.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/3141\/8387\/files\/champion-ca-series-scroll-bare-air-end.jpg?v=1792235870","url":"https:\/\/aircompressorstore.com\/products\/champion-ca-series-oil-less-rotary-scroll-bare-air-end","provider":"Warthog Air Compressor Store","version":"1.0","type":"link"}