{"product_id":"double-d4-56","title":"Double D4","description":"\u003cdiv class=\"product-short-description\"\u003e\u003cp\u003eDouble Rolling Mill – Double D4 rolling mill from Durston Tools. This exceptional rolling mill has two sets of rolls, the top set for flat rolling and the bottom set grooved for square wire rolling. Both sets of rolls also have extension rollers. The top rolls incorporate four half rounds and the bottom rolls an additional three half rounds. The rolling mill is supplied with two turning levers.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv aria-labelledby=\"tab-title-description\" class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--description panel entry-content active\" id=\"tab-description\" role=\"tabpanel\"\u003e\n\u003cp\u003eThis exceptional rolling mill has two sets of rolls, the top set for flat rolling and the bottom set grooved for square wire rolling. Both sets of rolls also have extension rollers. The top rolls incorporate four half rounds and the bottom rolls an additional three half rounds. The rolling mill is supplied with two turning levers. The first is used for heavy rolling, and this includes a gear reduction of 11-1. The second turning lever can be used for lighter rolling at twice the speed with a gear ratio of 5-1. Lever changeover takes only a few seconds. The top mill features an extra wide flat area of 158mm between two rollers with a diameter of 60 mm, each enabling a maximum roll thickness of 6 millimetres. The bottom mill has a total of 19 square wire grooves and 3 half rounds (7×1.75mm, 6×1.5mm, 5×1.25mm) allowing wire rolling from 10mm to 1mm. The side extensions enable half round rolling of 8, 7, 6, 5, 4, 3, 2, and 1.5mm. Safety features include all gearing being covered with plastic housing. The mill itself is constructed from a single piece of cast iron to maximise rigidity and strength, and all rollers are induction hardened to 64 RC to ensure your rolls lasts a lifetime. This is an exceptional workhorse of a rolling mill and will offer years of service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWire Roll Groove Sizes:\u003c\/strong\u003e 1, 1.05, 1.1, 1.15, 1.25, 1.35, 1.50, 1.70, 1.90, 2.20, 2.50, 2.90, 3.35, 3.90, 4.50, 5.20, 6, 6.95, 8mm\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eD4 158 Additional Instructions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe D4 158 has a second lever which is used for doubling the turning speed of the rolls. This second lever is useful when you are rolling out the smaller jobs where not so much effort is required, making the rolling quicker. For larger jobs, the lower lever, which is located on the wire roll, is the best to use as it gives you the maximum reduction on the gearbox.\u003c\/p\u003e\n\u003cp\u003eTo change the standard lever (lower lever on the wire roll) to the second lever, remove the circlip on the wire roll (right-hand side) and the first lever will slide off. Now insert the second lever into the cover on the lower sheet roll. The two hardened dowels will locate into the gear. Then tighten up the two 10mm bolts (17mm spanner).\u003c\/p\u003e\n\u003cp\u003eWhen turning with the standard lever, turn the lever anti-clockwise. When using the second lever, turn clockwise.\u003c\/p\u003e\n\u003cp\u003eLower turning reduction (First turning handle): 11-1 on the Flat rolls and 5-1 on the Wire rolls. (Lower turning handle is the lighter lever with the gear on the end. It locates on the end of the wire roll and is secured using a circlip)\u003c\/p\u003e\n\u003cp\u003eHigher turning reduction (second turning handle): 5-1 on the Flat rolls and 2.5-1 on the Wire rolls (Higher turning handle is the heavier lever with the 4″ round boss. It locates on the end of the flat roll and is secured using the 2 bolts)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional or Replacement Extension Rollers available for this model:\u003c\/strong\u003e\u003cbr\u003eExtension Roller 8, 6 \u0026amp; 3mm for Double Rolling Mills (Included as standard)\u003cbr\u003eExtension Roller 10 \u0026amp; 7mm for Double Rolling Mills\u003cbr\u003eExtension Roller 4, 3, 2 \u0026amp; 1.5mm for Double Rolling Mills (Included as standard)\u003cbr\u003eExtension Roller Plain for Double Rolling Mills (Included as standard)\u003cbr\u003ePlease read our Rolling Mill FAQs tab for more information.\u003cbr\u003e \u003c\/p\u003e\n\u003cdiv class=\"row\" id=\"row-2111286443\"\u003e\u003cdiv class=\"col small-12 large-12\" id=\"col-1802461357\"\u003e\u003cdiv class=\"col-inner text-left\" style=\"background-color:rgb(241, 241, 241);\"\u003e\n\u003cb\u003eManual Rolling Mill Comparison Chart.\u003c\/b\u003eQuickly see the differences between our manual rolling mills in one clear chart.View the comparison chart here. \u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv aria-labelledby=\"tab-title-additional_information\" class=\"woocommerce-Tabs-panel woocommerce-Tabs-panel--additional_information panel entry-content\" id=\"tab-additional_information\" role=\"tabpanel\"\u003e\u003ctable aria-label=\"Product Details\" class=\"woocommerce-product-attributes shop_attributes\"\u003e\u003ctbody\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--weight\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e85.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--dimensions\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eDimensions\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e74 × 47 × 46 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_boxed_weight\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eProduct Weight (kg)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e85KG\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_boxed-length\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eProduct Length (mm)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e420\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_boxed-width\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eProduct Width (mm)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e220\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_product-height-mm\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eProduct Height (mm)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e600\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_gearbox\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eGearbox\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e2.5-to-1 gearbox, 5-to-1, 11-to-1\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_grooves\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eNumber of Grooves\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e19\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_half-rounds\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eHalf round sizes (mm)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e6 \u0026amp; 5mm, 7\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_max-sheet-thickness\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eMax. Sheet Thickness (mm)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e6\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_roller_type\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eRoller Type\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003eCombination\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_roller-diameter\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eRoller diameter (mm)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e60\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_roller-length\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eRoller Length (mm)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e158\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_side-extensions\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eSide Extensions\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e1.5, 2, 3, 4, 6 and 8mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"woocommerce-product-attributes-item woocommerce-product-attributes-item--attribute_pa_wire-capacity\"\u003e\n\u003cth class=\"woocommerce-product-attributes-item__label\" scope=\"row\"\u003eMax. wire capacity (mm)\u003c\/th\u003e\n\u003ctd class=\"woocommerce-product-attributes-item__value\"\u003e\u003cp\u003e10mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e","brand":"Durston","offers":[{"title":"Default Title","offer_id":56575492391238,"sku":"1052","price":3932.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/5325\/9590\/files\/Durston-D4-158-Rolling-Mill-pic1-1052-510x612.jpg?v=1778613789","url":"https:\/\/gemmine.co.uk\/products\/double-d4-56","provider":"GemMine®","version":"1.0","type":"link"}