All the 2 plants operate on medium frequency Induction Melting furnaces. Furnaces ranging from 25Kg, 50Kg, 250 kg, 750Kg(2 numbers), 2MT, 6MT(2 numbers dual trac) and 10MT( with Tri track facility ) have been installed across the 2 production facilities. Aruna has strategically positioned the 2 foundry units to cater the wide range of casting weights for the body and components of valve manufacturers to provide a one-stop shop for sourcing. As rate of pouring and furnace temperature loss after tapping of metal are critical to maintain quality, a wide array of furnaces are operated. Depending on the liquid metal requirement, the plant for pouring is chosen by the product development team. We can pour 14 MT casting by running Tri Track to tab 23 MT of liquid metal
The moulding process across the 2 plants is hand moulding Co2-Silicate process. Airset cores are taken on special cases depending on criticality of the casting. Intensive process control is being put in place to ensure consistency in the manufacturing process.