Stringing blocks are critical for conductor protection through several design features:

• Lining Material: The inner groove of our stringing blocks is lined with high-quality, non-abrasive materials such as high-molecular polymer (e.g., polyurethane, nylon), or sometimes aluminum alloy with a smooth finish. This minimizes friction and prevents scratching or damage to the conductor's outer strands, particularly vital for sensitive OPGW cables with fiber optic cores.

• Optimal Groove Design: The groove profile is precisely designed to accommodate the conductor's diameter, ensuring a snug fit that prevents flattening or deformation. For bundled conductors, multi-groove blocks are used to cradle each sub-conductor individually.

• High-Quality Bearings: Low-friction, sealed bearings allow the sheave to rotate smoothly and freely, reducing wear on both the conductor and the block, while minimizing the pulling tension required.

• Robust Frame and Anti-Jump Devices: The block's frame is robust, often made of high-strength aluminum alloy or galvanized steel, and includes features like anti-jump devices or security latches to prevent the conductor from accidentally dislodging during dynamic operations.

• Adaptability: We offer blocks with various mounting options (e.g., universal hangers, swivel hooks) to ensure correct alignment on different tower types and under various angles, further protecting the conductor by preventing kinks or undue stress.