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Polybond Insulation Private Limited

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Process of Rockwool Manufacturing

In process of making Rockwool, minerals and other raw materials are heated to about 1600°C in a furnace, raw materials are heated until liquid. Volcanic rock, slag and coke are fed from the top of the melting furnace. The melt runs out of the bottom of the furnace and onto the spinning machine. The melted rock fall on highly speed spinning wheel, after passing melted rock to spinning machine the fine mineral wool is produced. The fine wool collected on belt conveyer and the binding agents sprinkle on the wool, the structure and density of the products are depends on binding agent amount. After sprinkle binding agent the belt conveyer pass the wool from the bake oven at around 200°C. After passing from bake oven the final product has come & itâs cut into required size and shape and after out are packed in many forms according to order. Off-cuts and other mineral wool scraps are recycled back into the production process.