{"product_id":"aluminum-mould-frame-1-3-8-thick-single-cavity-vulcanizer-rubber-casting-3-3-8-x-4-3-8-size","title":"Aluminum Mould Frame, 1-3\/8\"\" Thick, Single Cavity Vulcanizer Rubber Casting, 3-3\/8\"\" x 4-3\/8\"\" Size","description":"\u003cp\u003eFor jewellers vulcanizing smaller models, this compact aluminium frame is a practical alternative to standard sizes. It reduces rubber consumption and material cost per mould, making it an economical choice for producing single-cavity moulds for rings, pendants, and other compact jewellery pieces.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMilled from a solid block of aluminium for durability and even heat transfer.\u003c\/li\u003e\n\u003cli\u003eCompact 3⅜\" × 4⅜\" outer dimensions with a 1⅜\" thickness.\u003c\/li\u003e\n\u003cli\u003eFeatures a single, central cavity with rounded internal corners.\u003c\/li\u003e\n\u003cli\u003eMachined flat parallel faces ensure consistent pressure in the vulcanizer.\u003c\/li\u003e\n\u003cli\u003eUses less mould rubber than standard frames for smaller jewellery models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho it's for\u003c\/h3\u003e\n\u003cp\u003eIdeal for UK bench jewellers, casting houses, and jewellery design studios who regularly produce rubber moulds for smaller-scale items. Also suitable for model makers requiring a robust frame for vulcanizing small, detailed parts.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Dimensions:\u003c\/strong\u003e 3⅜\" × 4⅜\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 1⅜\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCavity:\u003c\/strong\u003e Single\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ts-trust\"\u003e\u003cstrong\u003eFree UK delivery\u003c\/strong\u003e · \u003cstrong\u003eSame-day dispatch\u003c\/strong\u003e before 2pm · \u003cstrong\u003e30-day returns\u003c\/strong\u003e\u003c\/p\u003e\n\u003cspan data-toolsmith-sku-index style=\"position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden\" aria-hidden=\"true\"\u003eSKU: R3-38R7-9JWD\u003c\/span\u003e\n\n\u003c!-- TS:RELATED-GUIDES v1 --\u003e\n\u003cdiv class=\"ts-related-guides\" style=\"margin-top:2em;padding:1em;border-top:1px solid #e0d4c0;\"\u003e\n\u003ch3 style=\"margin:0 0 .5em 0;font-size:1.1em;\"\u003eRelated buying guides\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:1.2em;\"\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/setting-up-a-jewellery-bench-uk-essentials\"\u003eSetting Up a Jewellery Bench: 12 Essentials UK Bench Jewellers Actually Use\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/jewellers-saw-frames-and-blades-uk-guide\"\u003eJeweller's Saw Frames and Blades: Pick the Right Combo\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/blogs\/news\/uk-hallmarking-guide-jewellery-makers-2026\"\u003eUK Hallmarking Guide for Jewellery Makers (2026)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/collections\/jewellery-making-tools\"\u003eBrowse all Jewellery Making Tools\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Toolsmith Ltd","offers":[{"title":"Default Title","offer_id":53140170604887,"sku":"R3-38R7-9JWD","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/1623\/3559\/files\/toolsmith-rebg-aluminum-mould-frame-1-3-8-thick-single-cavity-vulcanizer-ru-1777633730.jpg?v=1777633737","url":"https:\/\/www.toolsmithltd.co.uk\/products\/aluminum-mould-frame-1-3-8-thick-single-cavity-vulcanizer-rubber-casting-3-3-8-x-4-3-8-size","provider":"Toolsmith Ltd","version":"1.0","type":"link"}