Answer from Ningbo Changshi: The material of the pulling sleeve is a key determinant of its strength, durability, and suitability for different environments. We use several high-quality materials to meet the diverse needs of our customers:

• Galvanized Steel: This is the most common material due to its high tensile strength and resistance to corrosion, making it ideal for standard underground and overhead line pulling.

• Stainless Steel: For projects in harsh, corrosive environments such as coastal areas or underwater applications, stainless steel is the preferred choice as it offers superior corrosion resistance.

• Aramid Fiber (e.g., Kevlar): For specialized applications, we offer grips made from aramid fiber. This non-metallic material is incredibly strong, lightweight, and non-conductive, making it the perfect choice for stringing live-line conductors or in environments where a metallic grip could pose a risk, such as in the vicinity of explosives or sensitive electronic equipment.

For overhead transmission line (OHTL) work, our high-strength galvanized steel and specialized aramid fiber grips are engineered to handle the rigorous demands and high loads of conductor tension stringing.