Galvanized Z clevis are manufactured using high-strength carbon steel. The Z-shaped basic structure is first forged, with precise control over key dimensions such as the fork head opening angle and aperture to ensure compatibility with subsequent connections. The forged blank is then cut and ground to remove burrs and surface defects, ensuring smooth joints and reducing assembly resistance.
After production, galvanizing is performed, primarily using hot-dip galvanizing. The formed Z-type fork head is immersed in molten zinc, creating a uniform and dense zinc layer. Smaller or high-precision models may use electro-galvanizing to further enhance corrosion resistance. This treatment isolates the base material from air and moisture, significantly improving rust resistance.
To meet different user needs, stainless steel cotter pins and other accessories can be added. The stainless steel material prevents the pins from rusting and affecting the overall connection stability. Finally, a tensile test is conducted according to the rated breaking load standard, while simultaneously checking the adhesion and thickness of the galvanized layer. Products that fail to meet the standards must be reprocessed or discarded.
What are the performance characteristics of galvanized Z clevis use?
Strong Connection Stability: The Z-shaped structure is mechanically optimized, evenly distributing loads under stress. Combined with the locking effect of stainless steel cotter pins, it effectively prevents loosening of the connection. It is suitable for dynamic connections between conductors, insulators, and towers in high-voltage transmission lines, and can withstand slight displacement caused by external forces such as wind, ensuring the connection does not detach.
Outstanding Corrosion Resistance and Durability: The hot-dip galvanized layer bonds tightly to the substrate, is not easily peeled off, and can withstand harsh environments such as outdoors and humidity. Even when exposed to the open air of transmission lines or the complex working conditions of vehicle maintenance for extended periods, it can resist rain, snow, and dust corrosion, extending the product's service life.
Wide Compatibility: Different specifications and models can match conductors, insulators, and tower connectors of different diameters. In addition to the power industry, some smaller models, after size adjustments, can also be used for vehicle traction, small mechanical component connections, etc., meeting the connection needs of multiple industries.
Easy and efficient installation: The simple structural design requires no complicated special tools. Assembly and disassembly can be completed with bolts and cotter pins, which greatly shortens the operation time during power emergency repairs and equipment maintenance, and improves construction or maintenance efficiency.
High-voltage transmission lines: This is its core application area, used in overhead transmission lines and substations to connect conductors, lightning protection hardware, and insulators, or to connect insulators to towers. It is a key component ensuring the stable operation of transmission lines. For example, in high-voltage transmission projects in suburban and mountainous areas, medium-to-high load models such as Z-16 and ZS-30 are often selected to match heavy-duty insulator strings.
Vehicles and machinery: Some small galvanized Z clevis can be used in fleet vehicle maintenance, trailer towing connections, etc., conforming to industry standards such as SAE J1461. Through zinc coating corrosion protection and high-strength structure, the reliability of component connections during vehicle movement or towing is ensured.
Other auxiliary applications: Used as suspension connectors in busbar systems and related accessories; also used for small steel structure connections in some municipal infrastructure, such as auxiliary fixing components for streetlight poles and small signal towers.
