{"product_id":"air-expanding-shaft-3-inch-6-inch","title":"Air Expanding Shaft | 3 Inch \u0026 6 Inch Pneumatic Shaft for Slitting and Rewinding Machines","description":"\u003cp data-end=\"1652\" data-start=\"1276\"\u003e  XW Machinery manufactures high-performance air expanding shafts for slitting, rewinding, printing, packaging, film converting, paper processing, and lithium battery production lines. Available in both steel and aluminum construction, our pneumatic shafts provide reliable core gripping, fast roll changes, and stable web tension control for high-speed production environments.\u003c\/p\u003e\n\u003ch3 data-end=\"1670\" data-start=\"1654\" data-section-id=\"1iz91iu\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-end=\"2006\" data-start=\"1672\"\u003e\n\u003cli data-end=\"1715\" data-start=\"1672\" data-section-id=\"62s7jp\"\u003eAvailable in 3 inch and 6 inch core sizes\u003c\/li\u003e\n\u003cli data-end=\"1760\" data-start=\"1716\" data-section-id=\"7287fu\"\u003eSteel or lightweight aluminum body options\u003c\/li\u003e\n\u003cli data-end=\"1805\" data-start=\"1761\" data-section-id=\"1mdh3ko\"\u003eHigh gripping force with uniform expansion\u003c\/li\u003e\n\u003cli data-end=\"1855\" data-start=\"1806\" data-section-id=\"1jpt7gb\"\u003eSuitable for winding and unwinding applications\u003c\/li\u003e\n\u003cli data-end=\"1896\" data-start=\"1856\" data-section-id=\"zt0m7r\"\u003eCustom shaft length and journal design\u003c\/li\u003e\n\u003cli data-end=\"1937\" data-start=\"1897\" data-section-id=\"u6w0m9\"\u003eEasy maintenance and long service life\u003c\/li\u003e\n\u003cli data-end=\"2006\" data-start=\"1938\" data-section-id=\"pj6wak\"\u003eCompatible with paper, film, foil, textile, and nonwoven materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2097\" data-start=\"2058\" data-section-id=\"1syvogy\"\u003eApplications of Air Expanding Shafts\u003c\/h2\u003e\n\u003cp data-end=\"2143\" data-start=\"2099\"\u003eOur pneumatic air shafts are widely used in:\u003c\/p\u003e\n\u003cul data-end=\"2405\" data-start=\"2145\"\u003e\n\u003cli data-end=\"2169\" data-start=\"2145\" data-section-id=\"19qhw1y\"\u003eFilm Slitting Machines\u003c\/li\u003e\n\u003cli data-end=\"2190\" data-start=\"2170\" data-section-id=\"j65eot\"\u003eRewinding Machines\u003c\/li\u003e\n\u003cli data-end=\"2223\" data-start=\"2191\" data-section-id=\"1qipvld\"\u003eFlexographic Printing Machines\u003c\/li\u003e\n\u003cli data-end=\"2255\" data-start=\"2224\" data-section-id=\"yd82sp\"\u003eRotogravure Printing Machines\u003c\/li\u003e\n\u003cli data-end=\"2277\" data-start=\"2256\" data-section-id=\"9ai92k\"\u003eLaminating Machines\u003c\/li\u003e\n\u003cli data-end=\"2306\" data-start=\"2278\" data-section-id=\"1pqwcwz\"\u003ePaper Converting Equipment\u003c\/li\u003e\n\u003cli data-end=\"2351\" data-start=\"2307\" data-section-id=\"14tnqk4\"\u003eLithium Battery Electrode Production Lines\u003c\/li\u003e\n\u003cli data-end=\"2377\" data-start=\"2352\" data-section-id=\"1411n07\"\u003eTextile Winding Systems\u003c\/li\u003e\n\u003cli data-end=\"2405\" data-start=\"2378\" data-section-id=\"14lv9kh\"\u003eNonwoven Fabric Machinery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese shafts help maintain stable web tension, improve winding accuracy, and reduce downtime during roll replacement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cspan\u003eSteel vs Aluminum Air Shaft\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eSteel Air Shaft\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eSteel air shafts provide excellent strength and durability for heavy rolls and high-load industrial applications. They are ideal for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eHeavy-duty rewinding machines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWide web converting equipment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-load production environments\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLong-term continuous operation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eAdvantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eHigher load capacity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eExcellent durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong resistance to deformation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for large-diameter rolls\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eAluminum Air Shaft\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAluminum air shafts are lightweight and easier to handle, making them ideal for high-speed operations and frequent shaft changes.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAdvantages\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eReduced machine weight\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasier operator handling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFaster roll replacement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGood corrosion resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLower rotational inertia for high-speed machines\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eXW Machinery can customize both steel and aluminum air expanding shafts according to your machine specifications and production requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"font-family: Calibri;\"\u003e|Parameter Information |\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 214.532px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003eOptions\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eShaft Diameter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003e1 inch – 12 inch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eShaft Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003eCustomized\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eBody Material\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003eSteel \/ Aluminum\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eExpansion Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003eLug Type \/ Leaf Type \/ Strip Type\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eCore Size\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003e1 inch – 12 inch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eAir Pressure\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003eCustomized\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eApplication Speed\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003eHigh-Speed Compatible\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 18.5938px;\"\u003e\u003cspan\u003eSurface Treatment\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 18.5938px;\"\u003e\u003cspan\u003eChrome Plating \/ Anodizing\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eBearing Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003eCustomized\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.0279%; height: 19.5938px;\"\u003e\u003cspan\u003eTorque Capacity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 62.115%; height: 19.5938px;\"\u003e\u003cspan\u003eBased on Application\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003eCustom sizes and special structures are available upon request.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"font-family: Calibri;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0823\/3408\/9472\/files\/Air_Expanding_Shaft_drawing_parameter.png?v=1776064102\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan style=\"font-family: Calibri;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cspan\u003eWhat Is an Air Expanding Shaft?\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eAn air expanding shaft, also called an air shaft or pneumatic expanding shaft, is a mechanical component used in slitting, rewinding, printing, laminating, and packaging machines to securely hold paper rolls, film rolls, foil, textile rolls, and other web materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe shaft expands through compressed air, allowing the lugs or leaves to grip the inner core of the roll firmly and evenly. This ensures stable winding, accurate tension control, reduced material slippage, and improved production efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eXW Machinery manufactures customized air expanding shafts for high-speed converting equipment, offering reliable performance, strong load capacity, and long service life.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cspan\u003e\u003cspan style=\"font-family: Calibri;\"\u003eWhy choose us?\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan style=\"font-family: Calibri;\"\u003eAir Valve: uses high-quality valve fittings, good sealing performance, and a service life of over 50000 times.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan style=\"font-family: Calibri;\"\u003eBalance: Each shaft undergoes dynamic balancing treatment before leaving the factory to ensure that there is no vibration during high-speed operation.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: Calibri;\"\u003eMaterial: Made of seamless steel pipes or thickened aluminum profiles, it will not deform after long-term use.\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cspan style=\"font-family: Calibri;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis product is customized. Please contact customer service to send us your drawings.\u003c\/p\u003e\n\u003cp\u003eOrdering Process：\u003cbr\u003e1.    Inquiry: Send us your requirements (Diameter, Length, Material).\u003cbr\u003e2.    Drawing Confirmation: Our engineers provide\/confirm technical drawings within 4 hours.\u003cbr\u003e3.    Quotation: Competitive factory-direct pricing based on specs.\u003cbr\u003e4.    Production: 7-15 days lead time (standard parts).\u003cbr\u003e5.    Quality Check: ISO9001 standard inspection before shipping.\u003c\/p\u003e\n\u003cp\u003eOur factory has passed ISO9001 quality certification, ensuring quality assurance.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0823\/3408\/9472\/files\/xw_machinery_parts_iso_certification.png?v=1776044132\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat is the purpose of an air expanding shaft?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAn air expanding shaft securely holds roll cores during winding and unwinding operations, helping maintain stable tension and accurate roll positioning.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat materials can air shafts handle?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eAir shafts can handle paper, plastic film, aluminum foil, textile materials, labels, nonwoven fabric, and flexible packaging materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow does an air shaft work?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eCompressed air expands internal rubber tubes, which push external lugs or strips outward to grip the roll core securely.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eCan air shafts be customized?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eYes. XW Machinery provides customized air shafts based on machine dimensions, load requirements, core sizes, and application conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhich is better: steel or aluminum air shaft?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eSteel air shafts are better for heavy-duty applications, while aluminum air shafts are better for lightweight and high-speed operations.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow do I choose the correct air shaft?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eYou should consider roll weight, core size, machine speed, shaft length, tension requirements, and application type. XW Machinery can help recommend the correct model for your machine.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDo you provide replacement air shaft parts?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eYes. We provide replacement air valves, rubber bladders, expanding strips, bearings, and other air shaft spare parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRelated Products \u0026amp; Solutions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eEnhance the performance of your winding and unwinding system with our complete range of web handling products, including \u003c\/span\u003e\u003ca href=\"https:\/\/xw-machinery.com\/products\/magnetic-powder-brake-din-standard-long-life\" title=\"Magnetic Particle Brake Manufacturer for Precision Tension Control | XW Machinery\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan\u003eMagnetic Particle Brake\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e, \u003c\/span\u003e\u003ca href=\"https:\/\/xw-machinery.com\/products\/xw-hollow-shaft-magnetic-powder-clutch-6nm-400nm?variant=48228617781504\" title=\"Magnetic Powder Clutch Supplier for Industrial Torque Control | XW Machinery\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan\u003eMagnetic Powder Clutch\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e, \u003c\/span\u003e\u003ca href=\"https:\/\/xw-machinery.com\/collections\/tension-control-systems\" title=\"Automatic Tension Control System for Industrial Web Handling | XW Machinery\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan\u003eTension Control System\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e, and \u003c\/span\u003e\u003ca href=\"https:\/\/xw-machinery.com\/products\/automatic-manual-web-tension-controller?variant=48629365047552\" title=\"Web Tension Control Solutions for Roll-to-Roll Processing | XW Machinery\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan\u003eWeb Tension Control\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e solutions. For precision slitting applications, our \u003c\/span\u003e\u003ca href=\"https:\/\/xw-machinery.com\/products\/key-type-differential-shaft\" title=\"Differential Shaft Manufacturer for Slitting and Rewinding Machines | XW Machinery\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan\u003eDifferential Shaft\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e and \u003c\/span\u003e\u003ca href=\"https:\/\/xw-machinery.com\/products\/lug-type-air-shaft\" title=\"Air Expanding Shaft Supplier for Winding and Unwinding Systems | XW Machinery\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan\u003eAir Expanding Shaft\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e products help ensure consistent tension and superior roll quality. Explore our complete \u003c\/span\u003e\u003ca href=\"https:\/\/xw-machinery.com\/blogs\/news\/convert-rewinder-to-slitting-machine\" title=\"Slitting Machine Solutions for Film, Paper and Foil Converting | XW Machinery\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan\u003eSlitting Machine Solutions\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e for printing, packaging, film, paper, and converting industries.\u003c\/span\u003e\u003c\/p\u003e","brand":"XW Machinery Parts","offers":[{"title":"Default Title","offer_id":48204520849664,"sku":null,"price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/3408\/9472\/files\/XW_Machinery_Air_Expanding_Shaft.jpg?v=1780626010","url":"https:\/\/xw-machinery.com\/products\/air-expanding-shaft-3-inch-6-inch","provider":"XW Machinery","version":"1.0","type":"link"}