We begin with premium A-Grade Copper Cathodes registered with the London Metal Exchange (LME), ensuring 99.9% purity from the very start. Only the finest raw materials enter our facility, setting the stage for exceptional quality.
Our state-of-the-art OFC plant utilises advanced continuous casting technology to produce oxygen-free copper rod ranging from 8.0mm to 20.0mm in diameter. Our casting process maintains precise temperature control and uniform cooling, ensuring consistent metallurgical properties throughout the rod length. This critical process eliminates hydrogen embrittlement and oxidised impurities, resulting in copper with superior conductivity and long-term reliability.
The OFC rod is drawn down to precise diameters for various applications, alongside going through Continuous Extrusion machines for further shaping. These processes maintain the oxygen-free characteristics while achieving the exact dimensions required for enamelled wires, bare conductors, and other products.
Depending on the final product, the drawn wire undergoes additional processes:
Every product undergoes rigorous testing in our advanced laboratory. We test for conductivity, tensile strength, elongation, diameter accuracy, insulation breakdown voltage, amongst any other relevant testing to ensure adherence to international standards.
Products are carefully packaged according to customer specifications, with precise cutting to desired lengths and tailored wrapping configurations. Our efficient logistics ensure timely delivery with flexible batch sizes to meet customer demands.
Oxygen-Free Copper is the gold standard in electrical conductivity. By eliminating oxygen content to less than 10ppm, we prevent the formation of copper oxide, which can compromise conductivity and lead to premature failure.
Investment in cutting-edge equipment and continuous process improvement keeps Atta Metals at the forefront of copper manufacturing technology.