Hot-dip galvanized yoke plates have a wide range of applications, mainly concentrated in the power industry. Based on different application scenarios, stress characteristics, and connection requirements, common yoke plates are mainly divided into three categories:
Triangular yoke plate: It is the most widely used type in the global market. Utilizing the mechanical properties of the invariability of triangles, it is suitable for multi-directional stress scenarios. The three vertices are the core connection points, which can distribute multi-directional loads. Moreover, the uniformity of stress distribution is improved by more than 40% compared with other shapes. The standard side length and rated load can be customized;
Rectangular yoke plate: Used for linear or multi-point parallel connection scenarios, such as long-distance cable brackets and equipment fixing panels. From the surface, the plate is flat and the hole distribution is flexible. Components can be connected side by side. The standard size is 150mm×100mm-600mm×300mm, and the thickness is 8mm-25mm;
Trapezoidal yoke: Designed for asymmetrical stress scenarios, such as tilted towers and irregular support structures. It adapts to the tilted installation angle by the difference in the length of the upper and lower bottom sides, ensuring that the direction of the force is consistent with the center of gravity of the structure. It is commonly used in mountain power transmission lines and communication tower diagonal bracing connections.
Hot-dip galvanized yoke plates have a higher initial purchase cost than ordinary yoke plates, but their long-lasting corrosion resistance and long service life greatly reduce the frequency of replacement and maintenance costs, making them cost-effective overall. Below are their detailed parameters:
| category | Normal range | Standard requirements |
| Substrate material | Q235/Q355 low alloy steel, 304/316 stainless steel | GB/T 700,ASTM A36,EN 10025 |
| motherboard thickness | 6mm-30mm | Tolerance ±0.3mm |
| Aperture size | 12mm-30mm (compatible with M12-M30 bolts) | The hole wall is smooth and burr-free, with a tolerance of ±0.2mm. |
| Zinc layer thickness | ≥85μm (standard), ≥120μm (reinforced) | GB/T 13912,ASTM A123 |
| Zinc coating adhesion | ≥70N/mm² | No peeling or flaking was observed during the cross-cut test. |
| Rated load | 5kN-150kN | No permanent deformation was observed during the load test. |
| Operating temperature | -40℃-80℃ | No performance degradation under high and low temperature environments |
| Corrosion resistance level | No red rust after ≥48 hours of neutral salt spray test | Suitable for complex environments such as outdoor and highly corrosive environments |
Hot-dip galvanized yoke plates are widely used globally, but is it solely due to their excellent corrosion resistance? Actually, no. Besides corrosion resistance, they possess many other core competitive advantages that have earned recognition from international partners:
Stability
Achieving stability requires high-quality base materials and scientific design. Low alloy steel has a tensile strength of 375-570MPa and a yield strength of ≥235MPa, which can withstand tens of tons of cable tension and extreme loads without the risk of plastic deformation. Even in extreme environments such as high altitude and low temperature or desert high temperature, the performance will not degrade, and the stability is very strong.
Flexible and adaptable
Available in a variety of specifications and models, from size to shape, all can be customized. During installation, it supports bolt connection, pin connection, and snap-fit connection. From power to communication, from transportation to construction, it provides adaptable solutions. It is a highly versatile connection component. The comprehensive customization service can better meet the personalized needs of users.
High cost performance
Let's start with maintenance and upkeep. Many users don't know much about galvanized yoke plates and how to maintain and care for them. However, they do not need to be replaced within a 20-year service life, which greatly reduces maintenance costs. Moreover, large-scale production can control costs, providing users with competitive prices while ensuring that the quality meets international requirements.
To gain user recognition for our quality control system, we continuously strengthen data support and standard compliance to ensure that our hot-dip galvanized yoke plates meet the stringent quality requirements of the international market.
Dimensional accuracy
Side length and thickness are measured by digital vernier calipers with an accuracy of ±0.01mm. Hole diameter and hole position are inspected using an industrial projector and a coordinate measuring machine with a hole position deviation of ≤0.3mm and a hole diameter tolerance of ±0.2mm.
01
Mechanical properties
The tensile strength of Q235 base products is ≥375MPa, and that of Q355 base products is ≥470MPa. The bending strength test is conducted in accordance with GB/T 232-2010 standard. The bending angle is ≥180° without cracks or fractures, ensuring structural stability under extreme loads.
02
Zinc coating quality
Zinc coating thickness ≥85μm, adhesion is tested by cross-cut test, adhesion ≥70N/mm², neutral salt spray test according to ASTM B117 standard, continuous test for 48 hours, no red rust or zinc coating peeling on the surface, suitable for extreme corrosive environments such as marine high salt spray;
03
Visual inspection
A combination of visual inspection, magnifying glass inspection, and magnetic particle inspection is used. The appearance is required to be flat, with a uniform zinc layer, and free from defects such as cracks, pores, zinc nodules, burrs, and deformation, to ensure structural integrity and load-bearing safety. The pass rate is over 99.8%.
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