Bunch copper" refers to a process in electrical wire and cable manufacturing where multiple copper wires are twisted or bundled together to create a stranded wire. This method enhances flexibility and durability, making it suitable for various applications, including electrical and electronic components. Manufacturing Process: Copper Wire Drawing: Copper rods are drawn into thin wires using dies to achieve the desired diameter. Annealing: The drawn wires are annealed (heat-treated) to improve ductility and reduce brittleness. Stranding or Bunching: Several copper wires are twisted together in a bunching machine. This process aligns the wires in a spiral pattern to form a single stranded conductor. The stranding pattern can vary based on the application requirements, including configurations like concentric stranding or random bunching. Insulation: The stranded wires are coated with insulating materials like PVC, polyethylene, or Teflon, depending on the intended use. Testing and Quality Control: The finished product is tested for conductivity, tensile strength, flexibility, and insulation quality to ensure it meets industry standards.