A butt braider is a machine used to braid or shield cable or wire, typically operating with 8, 16, 24, 32, 48, or 64 carriers.
In wire and cable manufacturing, braiding involves interweaving metallic or fibrous filaments around a conductor or core to provide shielding, strength, or abrasion resistance. The butt braider, developed by the New England Butt Company, performs this function using the maypole principle, where carriers holding spools of wire or yarn move in a circular pattern to create a durable braid. These machines can produce a variety of braid densities and coverage levels depending on carrier count and material type. Metallic braids, such as copper, protect against electromagnetic interference (EMI), while nylon, glass, or cotton braids add mechanical flexibility and resistance to wear. Butt braiders are essential in modern cable production, enabling precise control over mechanical and electrical properties for diverse applications.
While the braiding process itself is not regulated, cables produced on butt braiders must comply with standards from UL (Underwriters Laboratories), IEEE (Institute of Electrical and Electronics Engineers), and IEC (International Electrotechnical Commission).
The New England Butt Company introduced the butt braider in the late 19th and early 20th centuries, adapting maypole braiding for industrial use. As demand for shielded and durable cables increased, butt braiders became standard in production facilities. Today, the term refers broadly to this class of braiding machines within the cable industry.