Product Description
U-shackles are critical components widely used in electric power transmission and distribution systems. Serving as connection points between insulators, suspension clamps, tower fittings, and other accessories, they not only transmit mechanical loads but also offer directional flexibility, effectively alleviating stress caused by mechanical tension and wind-induced displacement.
This series encompasses a wide range of models, including U-1240, U-1440, U-1470, U-1670, U-1870, U-1880, U-1890, U-2070, U-2080, U-2090, U-220J, and U-2200. Available in various lengths and load-bearing specifications - with rated loads ranging from 35kN to 100kN - they meet diverse engineering requirements.


Each U-shackle is manufactured from high-quality forged steel and finished with hot-dip galvanizing. The robust zinc coating provides exceptional corrosion resistance, protecting against salt spray, humidity, UV radiation, and extreme temperatures, thereby ensuring reliable operation in challenging environments such as coastal, mountainous, and desert regions. The material properties ensure high tensile strength and resistance to fatigue cracking under long-term cyclic loading. Precision machining guarantees a smooth pin-hole surface and consistent hole diameter. The complete assembly includes the U-shaped body, bolt, nut, and cotter pin, facilitating rapid installation. Two design configurations (Figure 1 and Figure 2) are available to accommodate different connection needs.
Every batch undergoes rigorous testing to ensure compliance with international electric power industry standards. Supplied by Yueqing Jasco Electric, this series of U-shackles offers robust performance, durability, and low maintenance costs, making them an ideal choice for overhead transmission line construction, cable installation, and small-scale power station projects worldwide.
Product Specification

Product Advantages
High Load-Bearing Capacity
Features a composite frame structure capable of withstanding vertical loads ranging from 35 kN to 100 kN and resisting various wind loads.
Superior Corrosion Resistance
Finished with hot-dip galvanizing to effectively resist erosion from dirt, moisture, and harsh outdoor weather conditions.
Flexible Rotating Design
The U-shaped structure facilitates rotation and effectively eliminates surface stress, thereby protecting connecting fittings and insulators.
Comprehensive Specifications
Available in various types, such as U and UJ models, with precise dimensional tolerances to ensure optimal compatibility with other equipment.
Easy and Secure Installation
Equipped with fasteners such as bolts and pins; allows for simple on-site disassembly and incorporates an anti-detachment design to enhance operational safety.
Operating Environment Conditions
- Ambient temperature: -40℃ ~ +40℃
- Altitude: ≤3000 m; customized design available for applications above 3000 m.
- Atmospheric environment: No strong corrosive, flammable, explosive or toxic media.
- Relative humidity: ≤90% at 25℃
- Application scenarios: Outdoor overhead transmission & distribution lines. Suitable for salt-fog coastal areas, desert, plateau and regions with seasonal ice coating.
- Load condition: Able to withstand wind vibration and conductor swing under normal line operating conditions.
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