S Type Anchor is a high-strength fastening solution developed by Handan Jinmai Fastener Manufacturing Co., Ltd. for power systems, communication base stations and large steel structure projects. Its unique double-hook "S" shape design perfectly balances tensile strength and installation convenience. It is widely used in transmission tower foundation fixation, photovoltaic support reinforcement and slope protection projects, and is particularly suitable for permanent anchoring in complex geological conditions such as sandy and soft soil.
1. Geometric optimization design
The 45° symmetrical bending angle achieves uniform stress distribution, and the finite element analysis verifies that the shear resistance is increased by 23% compared to traditional U-shaped anchors.
2. Full-process anti-corrosion system
The triple protection process (hot-dip galvanizing + chromate passivation + epoxy resin coating) ensures that the salt spray test is ≥1500 hours without red rust
3. Intelligent installation and adaptation
Equipped with a patented anti-rotation slot design, it supports rapid installation with an electric wrench, and the construction efficiency is increased by 40%
4. All-terrain applicability
The wedge-shaped bottom expansion component developed in conjunction with the original equipment can increase the grip to 3.2 times the standard value and has been successfully applied to the UHV project in the permafrost region of the Qinghai-Tibet Plateau.
Handan Jinmai adopts military-grade manufacturing standards:
1. Precision die forging
6300-ton hydraulic forging machine for one-time forming, eliminating welding weaknesses
2. Intelligent temperature-controlled quenching
The gradient heat treatment process keeps the core HRC28 toughness while the surface reaches HRC45 hardness
3. Nano-zinc infiltration process
The zinc layer thickness is 80-120μm, and the bonding strength reaches the highest level of DIN EN ISO 1461
4. Full-dimensional detection
Equipped with German Zeiss 3D measuring instrument for shape and position tolerance detection, 100% magnetic particle inspection
Material composition: Q355B low alloy steel (optional 316L stainless steel customization)
Specification range: diameter Φ16mm-Φ48mm, length 800mm-3500mm
Mechanical properties: minimum breaking load 580MPa, yield strength ≥355MPa
Coating index: average zinc layer mass 460g/㎡, local thickness ≥85μm
Torque coefficient: 0.13-0.15 (in accordance with ASTM F3125 standard)
Temperature tolerance: no performance degradation in working conditions from -50℃ to +200℃
Conclusion：
As a benchmark enterprise in China's power fastener industry, Handan Jinmai Fastener Manufacturing Co., Ltd. has been deeply engaged in the research and development of special anchors for 15 years and has 12 national invention patents. Our S Type Anchor series has passed international certifications such as CE, ISO 1461, AS/NZS 4680, and has been successfully used in main power grid transformation projects in more than 30 countries. Relying on a full-process digital factory and a national testing laboratory, we promise that each product comes with a traceable material report and a third-party test certificate, providing global customers with a lifetime maintenance-free anchoring solution.
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