{"title":"Exothermic Feeding Risers","description":"\u003cp\u003eHigh-performance exothermic and insulating feeding risers (RJFM Series) engineered for steel and iron casting applications. Manufactured from premium raw materials using proprietary processes, these risers deliver high exothermic output, excellent thermal insulation, and low bulk density — ensuring optimal shrinkage compensation throughout the solidification process.\u003c\/p\u003e\u003cp\u003eCompatible with plug-in, embedded, and floating riser seat installation methods. Available in standard and custom shapes to suit all major molding processes.\u003c\/p\u003e","products":[{"product_id":"exothermic-insulating-feeding-riser-sleeve","title":"Exothermic Insulating Feeding Riser Sleeve","description":"\u003ch2\u003eExothermic Insulating Feeding Riser Sleeve (RJFM Series)\u003c\/h2\u003e\u003cp\u003eThe RJFM Series exothermic insulating feeding riser sleeve is manufactured from premium raw materials using proprietary high-temperature processes. It features \u003cstrong\u003ehigh exothermic output\u003c\/strong\u003e, \u003cstrong\u003eexcellent thermal insulation\u003c\/strong\u003e, and \u003cstrong\u003elow bulk density (0.7 g\/cc)\u003c\/strong\u003e — ensuring superior shrinkage compensation performance for steel and iron castings.\u003c\/p\u003e\u003cp\u003eSuitable for a wide range of casting grades and molding processes. After pouring, residual sleeves can be knocked off easily, significantly reducing cutting, grinding, and cleaning costs.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh exothermic output with strong insulating capability — maintains optimal feed metal temperature throughout solidification\u003c\/li\u003e\n\u003cli\u003eLow density ensures reliable shrinkage compensation during casting solidification\u003c\/li\u003e\n\u003cli\u003eCompatible with plug-in, embedded, and floating riser seat installation methods\u003c\/li\u003e\n\u003cli\u003eResidual sleeve after casting is easily removable, lowering post-processing costs\u003c\/li\u003e\n\u003cli\u003eCustom shapes and sizes available on request\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUsage Guidelines\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eCalculate the feeding modulus and required feed volume for the casting, then select the appropriate riser sleeve — ensure the effective modulus exceeds the casting modulus.\u003c\/li\u003e\n\u003cli\u003eDetermine the number and size of risers required based on the calculated feed volume.\u003c\/li\u003e\n\u003cli\u003eSelect the appropriate riser sleeve size from the specification table.\u003c\/li\u003e\n\u003cli\u003eChoose the installation method (plug-in or embedded) based on the molding process. For embedded installation, a dedicated riser mold must be fitted on the pattern plate.\u003c\/li\u003e\n\u003cli\u003eWhen using breaker cores, always select the matching breaker core specification.\u003c\/li\u003e\n\u003cli\u003eFor closed risers, ensure a vent hole is provided at the top to allow atmospheric pressure communication.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eStorage \u0026amp; Handling\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStore in a cool, dry place away from moisture and open flames\u003c\/li\u003e\n\u003cli\u003eDo not bake or apply coatings directly to the riser sleeve surface\u003c\/li\u003e\n\u003cli\u003eHandle with care during packaging, loading, and transport to prevent crushing or impact damage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications (Kalminex XP Series)\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eEffective Modulus (cm)\u003c\/th\u003e\n\u003cth\u003eGeometric Modulus (cm)\u003c\/th\u003e\n\u003cth\u003eD1 (mm)\u003c\/th\u003e\n\u003cth\u003eD2 (mm)\u003c\/th\u003e\n\u003cth\u003eD3 (mm)\u003c\/th\u003e\n\u003cth\u003eH1 (mm)\u003c\/th\u003e\n\u003cth\u003eH2 (mm)\u003c\/th\u003e\n\u003cth\u003eVolume (dcm³)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ2\/5\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e0.45\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e37.5\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ3.5\/5\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e0.6\u003c\/td\u003e\n\u003ctd\u003e35\u003c\/td\u003e\n\u003ctd\u003e53\u003c\/td\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003ctd\u003e39.5\u003c\/td\u003e\n\u003ctd\u003e49.5\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ4\/6\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e38\u003c\/td\u003e\n\u003ctd\u003e56\u003c\/td\u003e\n\u003ctd\u003e54\u003c\/td\u003e\n\u003ctd\u003e55\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ4\/7\u003c\/td\u003e\n\u003ctd\u003e1.2\u003c\/td\u003e\n\u003ctd\u003e0.75\u003c\/td\u003e\n\u003ctd\u003e41.5\u003c\/td\u003e\n\u003ctd\u003e62.5\u003c\/td\u003e\n\u003ctd\u003e59\u003c\/td\u003e\n\u003ctd\u003e63\u003c\/td\u003e\n\u003ctd\u003e71.5\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ5\/8\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e0.95\u003c\/td\u003e\n\u003ctd\u003e52\u003c\/td\u003e\n\u003ctd\u003e73.5\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e中6\/9\u003c\/td\u003e\n\u003ctd\u003e1.7\u003c\/td\u003e\n\u003ctd\u003e1.05\u003c\/td\u003e\n\u003ctd\u003e57.5\u003c\/td\u003e\n\u003ctd\u003e50\u003c\/td\u003e\n\u003ctd\u003e76\u003c\/td\u003e\n\u003ctd\u003e50.5\u003c\/td\u003e\n\u003ctd\u003e91\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ7\/10\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e1.25\u003c\/td\u003e\n\u003ctd\u003e69.5\u003c\/td\u003e\n\u003ctd\u003e94\u003c\/td\u003e\n\u003ctd\u003e89.5\u003c\/td\u003e\n\u003ctd\u003e87\u003c\/td\u003e\n\u003ctd\u003e99\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ8\/11\u003c\/td\u003e\n\u003ctd\u003e2.25\u003c\/td\u003e\n\u003ctd\u003e1.4\u003c\/td\u003e\n\u003ctd\u003e79\u003c\/td\u003e\n\u003ctd\u003e102\u003c\/td\u003e\n\u003ctd\u003e99\u003c\/td\u003e\n\u003ctd\u003e96.5\u003c\/td\u003e\n\u003ctd\u003e108\u003c\/td\u003e\n\u003ctd\u003e420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ9\/12\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e1.55\u003c\/td\u003e\n\u003ctd\u003e89\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e110\u003c\/td\u003e\n\u003ctd\u003e104.5\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003ctd\u003e550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ10\/13\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e1.75\u003c\/td\u003e\n\u003ctd\u003e97\u003c\/td\u003e\n\u003ctd\u003e127.5\u003c\/td\u003e\n\u003ctd\u003e119.5\u003c\/td\u003e\n\u003ctd\u003e118\u003c\/td\u003e\n\u003ctd\u003e133\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ10\/21.5\u003c\/td\u003e\n\u003ctd\u003e3.15\u003c\/td\u003e\n\u003ctd\u003e1.95\u003c\/td\u003e\n\u003ctd\u003e102\u003c\/td\u003e\n\u003ctd\u003e128\u003c\/td\u003e\n\u003ctd\u003e116\u003c\/td\u003e\n\u003ctd\u003e201.5\u003c\/td\u003e\n\u003ctd\u003e215\u003c\/td\u003e\n\u003ctd\u003e1400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eΦ12\/15\u003c\/td\u003e\n\u003ctd\u003e3.2\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e118\u003c\/td\u003e\n\u003ctd\u003e154.5\u003c\/td\u003e\n\u003ctd\u003e148\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e1350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003eCustom sizes and shapes available upon request. OEM orders welcome.\u003c\/em\u003e\u003c\/p\u003e","brand":"Ruisource","offers":[{"title":"Default Title","offer_id":48031988482226,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/1818\/8210\/files\/image_35456ce3-0625-4353-b65a-5b98170e355f.png?v=1789120744"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0793\/1818\/8210\/collections\/image_e7ff25a0-8959-4dcf-b225-cf1028e2867f.png?v=1789120386","url":"https:\/\/ruisource.com\/collections\/exothermic-feeding-risers.oembed","provider":"Ruisource","version":"1.0","type":"link"}