XGU J Suspension Clamp Energy Saving Type Center Pivoted
Product Overview
The XGU J Suspension Clamp Energy Saving Type Center Pivoted is a specialized suspension clamp designed for U-bolt type conductor suspension from insulator strings, providing secure retention with adjustable grip. Widely recognized in the industry under alternative names including U-bolt suspension clamp, U-type hanging clamp, this product serves as a critical component in overhead transmission and distribution lines systems. The clamp body and keeper are made of aluminum alloy, the cotter pin is made of stainless steel, and the remaining parts are steel components. Steel components are hot-dip galvanized.
Advantages
- “U-bolt retention” — adjustable U-bolt mechanism accommodates a range of conductor diameters within each model rated capacity
- “Strong forged body” — high-strength cast iron or steel construction withstands mechanical loads including wind, ice, and short-circuit forces
- “Conductor-friendly liner” — replaceable rubber or aluminum liner prevents surface damage and reduces vibration fatigue
- “Universal insulator fit” — ball eye or clevis connection matches standard suspension insulator strings
- “Ease of maintenance” — U-bolt can be retightened or replaced without removing conductor from the line
Technical Parameters
| Model | Applicable Conductor Diameter (Including Wrapping) (mm) | Main Dimensions (mm) | Nominal Failure Load (kN) | Reference Weight (kg) | ||||
|---|---|---|---|---|---|---|---|---|
| L | C | R | H | M | ||||
| XGU-1J | 5.0~7.0 | 175 | 18 | 4.0 | 82 | 16 | 40 | 1.07 |
| XGU-2J | 7.1~13.0 | 175 | 18 | 7.0 | 82 | 16 | 40 | 1.09 |
| XGU-3J | 13.1~21.0 | 198 | 18 | 11.0 | 102 | 16 | 40 | 1.25 |
| XGU-4J | 21.1~26.0 | 215 | 18 | 13.5 | 110 | 16 | 40 | 1.62 |
Note: Dimensions may vary slightly based on manufacturing tolerances. Contact our engineering team for custom sizes or special requirements.
Material & Manufacturing
- Material: malleable cast iron or forged steel
- Secondary components: hot-dip galvanized finish with rubber/aluminum liner
- Surface treatment: Hot-dip galvanizing in accordance with ISO 1461 / ASTM A153 / IEC 61589, minimum zinc coating thickness 65 μm
- Manufacturing process: Precision forging, casting, or CNC machining of critical dimensions, followed by full galvanizing immersion. Dimensional accuracy controlled within ±0.5 mm tolerance on mounting interfaces
- Quality assurance: Every batch undergoes dimensional inspection, galvanizing thickness testing (magnetic or gravimetric method per ISO 2178), and visual surface examination. Mill test certificates (MTC) available upon request
Application Scope
- U-bolt type conductor suspension from insulator strings, providing secure retention with adjustable grip
- Overhead line suspension points on steel towers and concrete poles
- Long-span and heavy-load conductor support applications
- Distribution line crossarm and pole-top conductor hanging
Frequently Asked Questions
Q: When should I choose XGU over XJ? A: XGU is preferred when field adjustability of conductor grip is important, or when U-bolt tools are more convenient than keeper plate type XJ clamps.
Q: Can XGU clamps handle bundled conductors? A: Standard XGU clamps are for single conductors. For bundled configurations, use spacer clamps or custom multi-conductor suspension assemblies.
Q: What is the U-bolt torque requirement? A: Typically 20-40 N·m depending on model and conductor size. Follow the manufacturer specification to avoid over-compression.
Industry Standards & Compliance
| Standard | Scope |
|---|---|
| IEC 61589 | Galvanizing requirements for overhead line hardware |
| ISO 1461 | Hot-dip galvanized coatings on iron and steel articles |
| ASTM A153 | Zinc coating (hot-dip) on iron and steel hardware |
| GB/T 2314 | General requirements for overhead line fittings |
| GB/T 2317 | Mechanical testing methods for overhead line hardware |
| DL/T 765.2 | Suspension and strain hardware for overhead power lines |