Payment Terms | D/P,T/T,Western Union |
Supply Ability | 10000PCS/month |
Delivery Time | 30 days |
Packaging Details | Wooden case |
Lead Time | 30-40 Days |
Product Material | Carbon steel Boron steel 35mnB |
Capacity | 100,00pcs/Month |
Precision | high precision |
Packingour Request | Carton box, wooden box |
Dimension | customized |
Material | steel |
Oem | yes |
Brand Name | Qingdao Sande Tech Co.,Ltd |
Model Number | OEM |
Certification | ISO, DIN, AISI, ASTM, BS, JIS, etc. |
Place of Origin | Qingdao, China |
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Product Specification
Payment Terms | D/P,T/T,Western Union | Supply Ability | 10000PCS/month |
Delivery Time | 30 days | Packaging Details | Wooden case |
Lead Time | 30-40 Days | Product Material | Carbon steel Boron steel 35mnB |
Capacity | 100,00pcs/Month | Precision | high precision |
Packingour Request | Carton box, wooden box | Dimension | customized |
Material | steel | Oem | yes |
Brand Name | Qingdao Sande Tech Co.,Ltd | Model Number | OEM |
Certification | ISO, DIN, AISI, ASTM, BS, JIS, etc. | Place of Origin | Qingdao, China |
High Light | carbon steel hot forging parts ,carbon steel aluminum forging parts ,customized hot forging parts |
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
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2018
Employee Number:
>63
Ecer Certification:
Verified Supplier
Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful qua... Qingdao Sande Technology Co., Ltd. is located in Qingdao. We are specialized in manufacturing forging, CNC machining and various surface treatments. We have over 16 years of experience.We have a professional and experienced team of engineers, advanced production and testing equipment, a powerful qua...
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