Qingdao Haosail Machinery Co., Ltd.

G80 USA Standard Link Chain Features：

• High-strength material, reliable load-bearing. According to the strict material selection requirements of American standards, 20Mn2 steel with a specific alloy ratio is used. After the chain ring is forged as a whole, the Rockwell hardness is stable at HRC40-45. In the simulated 1000 full-load lifting cycle test, the wear of the 5-ton chain ring is ≤0.1mm, showing excellent wear resistance. The breaking load is more than 4 times the rated load. Taking the 10-ton chain as an example, the breaking load is ≥40 tons, which can calmly cope with sudden overload conditions and ensure operational safety.

• Precise specifications, multiple adaptability. The chain link diameter and pitch strictly follow the American standard size system. Common chain link diameters are 6mm, 8mm, 10mm, 12mm, 16mm, 18mm, 20mm, 22mm, 24mm, etc., and the pitch ranges from 38mm to 100mm. It can be perfectly adapted to various lifting and transmission equipment commonly used in the United States and internationally. For example, in the construction tower crane, the G80 chain with a specific pitch is precisely matched with the tower crane hoisting mechanism to achieve efficient material lifting.

• Flexible connection, convenient assembly. Equipped with a quick connection buckle that meets the American standard, the connection operation is simple, and skilled workers can complete the connection within 20 seconds, greatly improving the on-site assembly efficiency. The breaking strength of the connection buckle is equivalent to that of the chain link, ensuring the reliability of the connection part. The chain can be assembled into a length of 3-50 meters as needed to meet the requirements of different lifting heights and equipment layouts. At the installation site of large equipment, the chain length can be flexibly adjusted to quickly build a lifting and transportation system.

• Diverse protection, environmental adaptability. The surface treatment process is rich. The blackened chain can effectively prevent slight oxidation in ordinary indoor environments and maintain stable appearance and performance; the galvanized chain (zinc layer thickness ≥50μm) has been tested for ≥500 hours in salt spray and is suitable for humid environments such as outdoor and seaside; the chain with special spray paint can resist a certain degree of chemical corrosion and work normally in places with corrosive gases such as chemical workshops.

• Excellent cost performance, economical and practical. Compared with high-grade chains such as G100, the procurement cost of G80 American standard chain is 20% - 30% lower, which is suitable for operating scenarios with limited budgets and moderate lifting frequency (10 - 20 times a day). Under normal maintenance, the service life can reach 5 - 8 years, and the average annual maintenance cost accounts for 10% - 15% of the procurement cost (quarterly cleaning + annual flaw detection). The comprehensive cost advantage of long-term use is obvious.

G80 USA Standard Link Chain Typical Applications:

• Construction field. At construction sites, G80 chains are often used in conjunction with tower cranes to lift construction materials. When lifting 2-5 tons of precast concrete components, the chain can complete 30-50 lifting operations per day with its high strength and wear resistance to ensure construction progress. In high-altitude work scenarios such as scaffolding, G80 chains are used to hang hanging baskets to ensure the safety of workers. Its safety factor and reliability can meet the high requirements of construction.

• Machinery manufacturing industry. In a machinery processing plant, G80 chains are used to lift 3-8 tons of machine tool parts. The chain can flexibly surround the workpiece and cooperate with the overhead crane to accurately complete equipment assembly, shifting and other operations. In the engine manufacturing workshop, when lifting precision parts such as engine cylinders, the stability and accuracy of the chain avoids damage to parts due to collision and ensures the smooth progress of the production process.

• Warehouse logistics scene. In logistics warehouses, 5-10 ton G80 chains are used in conjunction with forklift attachments to transport large cargo pallets, enabling rapid loading, unloading and stacking of cargo. In port cargo yards, when lifting bulk cargo in containers (such as 2-8 ton steel and wood), multiple sets of G80 chains are used together to evenly distribute the force and ensure smooth lifting of cargo. The average daily lifting operation volume can reach 80-100 times, greatly improving logistics turnover efficiency.