Ground rods are indispensable grounding devices in power systems, communication base stations and building lightning protection projects. They are mainly used to safely conduct current into the ground to prevent equipment from being damaged by lightning strikes or leakage. The ground rods produced by Handan Jinmai Fastener Manufacturing Co., Ltd. are made of high-quality low-carbon steel or copper-clad steel, combined with advanced copper plating/galvanizing processes to ensure excellent conductivity and strong corrosion resistance. They can adapt to complex environments such as high salinity and humidity, and are widely used in energy, communications, railways and other fields.
1. Highly conductive material
The core material is made of high-purity low-carbon steel or copper-clad steel, with stable conductivity and low grounding resistance, ensuring efficient current release.
2. Long-term anti-corrosion treatment
The surface adopts electroplating copper/hot-dip galvanizing process, and the coating is uniform and dense (copper layer ≥ 0.25mm, zinc layer ≥ 85μm). It has passed the ASTM B455 standard salt spray test and has an anti-corrosion life of more than 30 years.
3. Integrated structural design
The rod body is precisely processed by cold drawing process, with high density and high strength. The threaded end can be flexibly connected and extended to meet the needs of deep buried grounding.
4. Easy installation
The standard length is 1.5m~3m, and the segmented design can be customized. It can be directly hammered into the ground with the drive head to save construction costs.
5. Full-scene adaptation
It has passed international certifications such as IEC 62561 and UL 467, and is suitable for harsh scenes such as substations, 5G base stations, and photovoltaic power stations.
1. Raw material screening
Select low-carbon steel round steel or copper-clad steel substrate to ensure that the material purity and mechanical properties meet the standards.
2. Surface pretreatment
Remove surface impurities through pickling and phosphating processes to enhance the adhesion of the coating.
3. Precision cold drawing
Use cold drawing technology to improve the density and straightness of the rod body, and the tolerance is controlled within ±0.2mm.
4. Electroplating/hot dip process
The fully automatic electroplating line achieves uniform coverage of the copper layer, or high-temperature hot dip zinc forms an alloy protective layer.
5. Quality inspection
Perform coating thickness measurement, resistivity test and tensile strength test (≥600MPa) on each rod to ensure 100% qualified delivery.
Material options: low carbon steel (Q235), copper clad steel (CCS 1010), stainless steel (optional)
Diameter range: Φ14mm~Φ20mm (conventional), support non-standard customization
Standard length: 1.5m/2.4m/3m, customizable segmented combination
Coating thickness: copper layer ≥0.25mm (electroplated copper), zinc layer ≥85μm (hot-dip galvanizing)
Tensile strength: ≥600MPa (in accordance with GB/T 700 standard)
Resistivity: ≤0.060Ω·m (copper clad steel material)
Corrosion resistance: C5 (ISO 12944 harsh industrial environment standard)
Working temperature: -50℃~+120℃
As one of the core products of Handan Jinmai Fastener Manufacturing Co., Ltd., ground rods have been exported to more than 50 countries and regions including Europe, America, Southeast Asia, and the Middle East with strict process control and international quality standards. The company has 20 years of experience in the research and development of power fittings, equipped with fully automated production lines and CNAS certified laboratories, and has passed ISO 9001, CE, RoHS and other authoritative certifications, providing customers with one-stop solutions from selection and design to after-sales support.
Choosing Handan Jinmai, you will get:
✅ High cost performance - large-scale production reduces costs and shortens delivery cycle by 30%
✅ Customized service - supports personalized customization of materials, sizes, and coatings
✅ Full quality assurance - third-party test reports are provided, with a warranty period of up to 10 years
Contact us: Get ground rod technical solutions and export quotations immediately to lay a solid safety foundation for your global projects!
Official website: https://www.jinmaipowerline.com/
Email: [email protected]
Contact: WhatsApp/wechat: +86 13831001495
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