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MOQ: | 1000 |
Price: | $0.5-2 |
Standard Packaging: | Wooden case |
Delivery Period: | 30 days |
Payment Method: | D/P,T/T,Western Union |
Supply Capacity: | 10000PCS/month |
U-shaped tongue clips forged from carbon steel for composite insulators
Description :
Our hot-forged carbon steel U-shaped tongue clips are precision-engineered suspension components designed for composite polymer insulators in high-voltage transmission lines. These heavy-duty clamps provide secure mechanical anchoring while preventing insulator slippage, even under extreme wind and ice loads up to 100kN.
Key Features & Benefits :
✔ Superior Material - Forged from ASTM A105/A694 carbon steel with 345MPa yield strength
✔ Precision Fit - CNC-machined tongue-groove interface ensures ±0.2mm alignment accuracy
✔ Corrosion Protection - Standard hot-dip galvanizing (86μm) or optional Dacromet coating
✔ Load-Tested - 2.5x safety factor over rated mechanical load (RML) per IEC 61952
✔ Streamlined Design - U-shape reduces wind-induced vibration by 40% vs. traditional designs
Technical Specifications :
Parameter | Specification |
---|---|
Material Grade | A105, A694 F42-F60 (or equivalent) |
Working Load | 50-100kN (custom 150kN available) |
Temperature Range | -40°C to +120°C (high-temp versions to 200°C) |
Surface Finish | HDG (80-100μm), Dacromet, or epoxy coated |
Standards | IEC 61952, IEEE 1523, GB/T 2314 |
Applications :
• 110kV-1000kV transmission line dead-ends
• Railway catenary system suspensions
• Offshore wind farm insulator strings
• HVDC tower jumper supports
FAQ :
1. What makes your forged tongue clips superior to cast alternatives?
3x Longer Fatigue Life: Forged grain structure withstands 1 million+ load cycles (per IEC 61325)
Higher Strength: 345MPa yield strength vs. 240MPa for typical cast steel
Precision Fit: CNC-machined grooves maintain ±0.2mm tolerance vs. ±1.5mm for cast parts
2. Which carbon steel grades do you recommend for different environments?
Grade | Best For | Coating Recommendation |
---|---|---|
ASTM A105 | Standard terrestrial lines | 86μm HDG |
A694 F60 | High-tension applications | Dacromet + epoxy |
Weathering | Coastal areas | Special alloy coating |
3. How do you prevent insulator rubber damage?
Radiused Edges: 2.5mm minimum radius on all contact surfaces
Non-Mar Design: Electropolished grooves eliminate sharp edges
Load Distribution: Optimized U-shape reduces point loading by 60%
4. What testing do your clips undergo?
Mechanical:
2.5x RML static load test (IEC 61952)
50,000+ vibration cycles (IEEE 1523)
Environmental:
3000hr salt spray (ASTM B117)
-40°C impact toughness test
5. What's your production lead time?
Standard: 4-6 weeks
![]() |
MOQ: | 1000 |
Price: | $0.5-2 |
Standard Packaging: | Wooden case |
Delivery Period: | 30 days |
Payment Method: | D/P,T/T,Western Union |
Supply Capacity: | 10000PCS/month |
U-shaped tongue clips forged from carbon steel for composite insulators
Description :
Our hot-forged carbon steel U-shaped tongue clips are precision-engineered suspension components designed for composite polymer insulators in high-voltage transmission lines. These heavy-duty clamps provide secure mechanical anchoring while preventing insulator slippage, even under extreme wind and ice loads up to 100kN.
Key Features & Benefits :
✔ Superior Material - Forged from ASTM A105/A694 carbon steel with 345MPa yield strength
✔ Precision Fit - CNC-machined tongue-groove interface ensures ±0.2mm alignment accuracy
✔ Corrosion Protection - Standard hot-dip galvanizing (86μm) or optional Dacromet coating
✔ Load-Tested - 2.5x safety factor over rated mechanical load (RML) per IEC 61952
✔ Streamlined Design - U-shape reduces wind-induced vibration by 40% vs. traditional designs
Technical Specifications :
Parameter | Specification |
---|---|
Material Grade | A105, A694 F42-F60 (or equivalent) |
Working Load | 50-100kN (custom 150kN available) |
Temperature Range | -40°C to +120°C (high-temp versions to 200°C) |
Surface Finish | HDG (80-100μm), Dacromet, or epoxy coated |
Standards | IEC 61952, IEEE 1523, GB/T 2314 |
Applications :
• 110kV-1000kV transmission line dead-ends
• Railway catenary system suspensions
• Offshore wind farm insulator strings
• HVDC tower jumper supports
FAQ :
1. What makes your forged tongue clips superior to cast alternatives?
3x Longer Fatigue Life: Forged grain structure withstands 1 million+ load cycles (per IEC 61325)
Higher Strength: 345MPa yield strength vs. 240MPa for typical cast steel
Precision Fit: CNC-machined grooves maintain ±0.2mm tolerance vs. ±1.5mm for cast parts
2. Which carbon steel grades do you recommend for different environments?
Grade | Best For | Coating Recommendation |
---|---|---|
ASTM A105 | Standard terrestrial lines | 86μm HDG |
A694 F60 | High-tension applications | Dacromet + epoxy |
Weathering | Coastal areas | Special alloy coating |
3. How do you prevent insulator rubber damage?
Radiused Edges: 2.5mm minimum radius on all contact surfaces
Non-Mar Design: Electropolished grooves eliminate sharp edges
Load Distribution: Optimized U-shape reduces point loading by 60%
4. What testing do your clips undergo?
Mechanical:
2.5x RML static load test (IEC 61952)
50,000+ vibration cycles (IEEE 1523)
Environmental:
3000hr salt spray (ASTM B117)
-40°C impact toughness test
5. What's your production lead time?
Standard: 4-6 weeks