Quality and Process
- Quality is our main motto and our standard
We have an up to date laboratory to check for HTS, CTS, Stick Point, LOI, Peel Back etc.
The process involves getting Raw Sand from Coastal belt like Karnataka, Kerala and Gudur in Andhra Pradesh. The silica sand got from these sources is 99.9% pure Silica which traces of Clay. These are deposits made millions of years back and they are absolutely suitable for the process. The process is described in detail, Read more...
The raw Silica Sand that is received may contain moisture depending upon the season. If wet it is dried using the sand drier or dried in the open using natural sun light
The Silica Sand is graded by Sieving to make it suitable as per the customers’ Specification. Each customer has a difference specification for the sieve grading.
The required quantity of Raw Sand is loaded into the Muller of the Coating Plant on controlled heat condition.
Hexamine which is the catalyst is added to this.
At present we are manufacturing more than 25 grades of Resin Coated Sand suitable for all Ferrous and Non Ferrous castings
After the Hexamine is mixed properly the liquid Resin of required quantity is added and allowed to Mull for certain period.
Now hot air is passed over the mix to remove the solvent from the resin.
The dried sand is discharged and the discharge temperature is noted after which it is sieved, cooled and packed in 50 kgs bags ready for dispatch. The batch Number, date of manufacture, customer’s name etc is written on each gag to identify the product. The Resin Coated Sand is checked for Hot Tensile Strength, Cold Tensile Strength, Stick Point, Peel Back, Loss on Ignition and other parameters to verify the adherence of the Coated Sand to the specificsations given by the Customer.