The D-type iron bracket is an indispensable overhead line support component in power and telecommunications systems. It is primarily used to secure and support optical cables (such as ADSS and OPGW), conductors (such as steel-core aluminum stranded wire and overhead insulated conductors), and cables, ensuring stable operation in complex environments.
A core product of Handan Jinmai Fastener Manufacturing Co., Ltd. (established in 2010 and located in Yongnian District, Handan, Hebei Province, China's largest fastener distribution center), the D-type iron bracket is made from high-quality Q235 carbon steel through precision forging and hot-dip galvanizing. Its classic D-shaped structure combines high strength, corrosion resistance, and ease of installation, making it a fundamental supporter in power engineering and telecommunications network construction.
1. High-Strength, Stable and Reliable. Made of high-quality Q235 carbon steel that complies with GB/T 700-2006 standards, with a tensile strength of ≥410 MPa and a compressive strength of ≥235 MPa, it can withstand the pressure of heavily loaded lines and ensure long-term stability.
2. Excellent Corrosion Resistance, Extended Service Life. The surface is hot-dip galvanized with a galvanized layer thickness of ≥65 μm, forming a dense protective layer that effectively resists atmospheric, rain, salt spray, and other corrosion, with a service life of over 15 years.
3. Customized Service to Meet Special Needs. Customized processing is available to meet specific requirements. Dimensions, apertures, galvanized layer thickness, and other parameters can be adjusted to suit different voltage levels and line specifications.
4. Highly Versatile and Easy Installation. The D-shaped structure conforms to power line construction specifications. Combined with bolts, clamps, and other accessories, it can be quickly secured to supporting structures such as poles and towers. Installation efficiency is 30% higher than traditional brackets, reducing construction time and costs.
Handan Jinmai Fastener Manufacturing Co., Ltd. has 15 years of experience in manufacturing electrical hardware. We utilize standardized production processes to ensure consistent product quality:
1. Raw Material Selection: We select Q235 carbon steel from renowned steel mills such as Baosteel and Anshan Iron and Steel. Each batch of raw materials undergoes material testing (spectral analysis and mechanical property testing).
2. Forging: CNC punching machines (with an accuracy of ±0.1mm) are used to form the steel into D-shaped structures, ensuring dimensional consistency and structural strength.
3. Hot-Dip Galvanizing: Through a five-step process of "pickling → cleaning → galvanizing → passivation → drying," the zinc coating is uniform and dense, free of defects such as missing plating and bulging.
4. Quality Inspection: Each batch of products undergoes dimensional inspection (vernier caliper, ruler), hardness testing (Rockwell hardness tester), zinc coating thickness testing (coating thickness gauge), and visual inspection (for cracks and burrs). Only qualified products are released.
Material: Q235 high-quality carbon steel (compliant with GB/T 700-2006)
Surface treatment: Hot-dip galvanized (compliant with GB/T 13912-2020)
Galvanized layer thickness: ≥65μm
Length: 100mm-1000mm (customizable)
Width: 50mm-200mm (customizable)
Thickness: 5mm-15mm (customizable)
Aperture: 10mm-20mm (customizable)
Load capacity: ≥500kg (100mm length)
Applicable voltage: 10kV-220kV
Applicable conductors/cables: Steel-core aluminum stranded conductor (LGJ-35 to LGJ-400), ADSS optical cable (24-144 cores), OPGW optical cable (24-144 cores)
Handan Jinmai Fastener Manufacturing Co., Ltd. (located in Yongnian District, Handan, Hebei Province, a core fastener distribution center in China) manufactures D-shaped iron brackets, a reliable support option for power and communication lines. Their high strength, corrosion resistance, and customizability have earned them widespread adoption in large-scale projects for companies such as the State Grid Corporation of China, China Southern Power Grid, and China Mobile, earning them a strong reputation.
As a professional power fitting manufacturer, we adhere to the principle of "quality first, customer first," providing customers with one-stop solutions from design to production and delivery. If you require customized D-shaped iron brackets or other power fittings (such as tension clamps, suspension clamps, and fiber optic cable fittings), please contact us:
- Email: [email protected]
- WhatsApp/WeChat: +86 13831001495
We will respond to your inquiries within 24 hours and look forward to working with you to build a stable and efficient power line system!
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