Ball head hook factoy supply with customer size

Ball head hooks are commonly used connection fittings for overhead transmission lines and are widely used in conjunction with suspension insulators. They are indispensable components in high-voltage and ultra-high-voltage power transmission and transformation projects, undertaking the functions of insulator suspension, transfer, and hoisting. The products are forged and hot-dip galvanized for corrosion protection, making them suitable for the complex outdoor power grid operating environment.

Product Specification

Hebei Jinmai can produce the ball head hooks that conform to domestic power fitting standards, while also supporting non-standard customization for overseas projects. Mainstream specifications are categorized by load rating, with common models including 70kN, 100kN, and 120kN, corresponding to insulators with different breaking load levels. Jinmai also primarily supports customized services; we can customize according to your required dimensions.

Below is an introduction to standard sizes

Ball head size: Matches standard insulator ball head sizes, such as 16mm and 20mm ball heads;

Eye diameter: The round hole of the eye hook can be matched with U-pins and bolts of corresponding specifications;

Customization options: Supports processing according to drawings and samples, adjusting hook curvature, ball head size, and opening size to meet the requirements of different State Grid projects.

Main materials

The main body is forged from high-quality carbon structural steel, ensuring stable mechanical properties, impact and tensile strength, and meeting the mechanical load requirements of power lines. Hot-dip galvanizing treatment extends the product's service life, enhances corrosion resistance, and allows for outdoor use for 10-20 years.

The forged body boasts high strength, hot-dip galvanizing provides durable corrosion resistance, and the optimized hook curvature facilitates easy attachment and disassembly. It also offers excellent interchangeability and compatibility with mainstream insulators on the market.

Tensile test reports are available, conforming to the ISO9001 quality system, and third-party testing is supported.

Ball-head hooks, though small in size, are crucial connecting components in power transmission lines that bear mechanical loads. From raw material selection and forging heat treatment to hot-dip galvanizing for corrosion protection, every process directly affects the long-term safe operation of the power grid. A standardized + customized production model can meet the bidding needs of domestic power grid projects as well as the foreign trade procurement requirements of overseas power transmission and transformation projects in the Middle East, Africa, and Southeast Asia.