Answer from Ningbo Changshi: The material of the sheave groove is a critical factor in preventing damage to the conductor during stringing. The two primary materials used are aluminum alloy and high-strength nylon (MC Nylon).

• Aluminum Alloy Sheaves: Our aluminum alloy sheaves are lightweight, strong, and highly durable. They are a great choice for general-purpose OHTLstringingequipment.com/Conductor-Stringing-Equipment.html target='_blank'>conductor stringing. They are particularly effective when equipped with a neoprene or polyurethane lining, which provides an added layer of protection and friction reduction for the conductor. This combination is especially popular for heavy-duty applications.

• High-Strength Nylon Sheaves: Nylon sheaves are known for their exceptional wear resistance, self-lubricating properties, and low coefficient of friction. They are the ideal choice for pulling expensive or sensitive conductors, such as fiber optic ground wire (OPGW), because the material is less likely to scratch or deform the cable's outer jacket.

For maximum conductor protection, particularly with high-value conductors, we recommend using our nylon or neoprene-lined aluminum sheaves. They are a sound investment that protects your project's most valuable assets.