Qingdao Haosail Machinery Co., Ltd.

G80 Lifting Chain Features:

• Material technology, reliable compliance: According to the EN818-2 standard, steel with specific alloy composition is selected, and after quenching and tempering, the chain link Rockwell hardness is maintained at HRC40-45 to ensure strength and wear resistance. For example, after simulating 1000 lifting cycles (load is rated value) for a 5-ton chain, the chain link wear is ≤0.1mm, which is far below the wear limit allowed by the standard. The breaking load is more than 4 times the rated load (such as the breaking load of an 8-ton chain is ≥32 tons), meeting the needs of daily and sudden overload conditions.

• Flexible connection, adaptable specifications: The chain link diameter is commonly 6-18mm, and can be quickly assembled into the required length through a standard quick-connect buckle (connection time ≤20 seconds). The chain links rotate smoothly (friction coefficient ≤ 0.15), can tightly surround various types of workpieces such as square and round, and achieve 360° lifting angle adjustment. When lifting irregular equipment such as large gears and machine tool beds, it can easily find the center of gravity and ensure lifting balance.

• Surface protection, environmental adaptability: There are various surface treatment methods, including polishing, blackening, painting, hot-dip galvanizing, etc., to meet the use of different environments. For example, the chain with hot-dip galvanizing treatment (zinc layer thickness ≥ 50μm) has a neutral salt spray test resistance of ≥ 500 hours and is suitable for humid environments such as outdoor and seaside; the chain with blackening treatment can effectively prevent slight oxidation in general indoor factory environments and maintain stable appearance and performance.

• Cost-effective, economical and practical: Compared with high-grade chains such as G100, the procurement cost of G80 chain is 20%-30% lower, which is more suitable for operation 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 purchase cost (quarterly cleaning + annual nondestructive testing), with high overall cost performance.

G80 Lifting Chain Typical Applications:

• Construction scenarios: When lifting building materials at construction sites, such as lifting 2-5 tons of precast concrete components, the chain can be used with tower cranes or gantry cranes to quickly lift and accurately place them. The number of lifts can reach 30-50 times a day. Its high strength and wear resistance can adapt to complex and high-intensity operations at construction sites, effectively improving the construction progress.

• Material handling in factories: In mechanical processing plants, 3-8 tons of machine tool parts are lifted. The G80 chain can flexibly surround the workpiece and cooperate with the overhead crane to complete equipment assembly, shifting and other operations. In chemical workshops, chemical raw material barrels (1-3 tons) are lifted with chains with corrosion-resistant surface treatment, which can resist the slight acid and alkali corrosion environment in the workshop and ensure safe and efficient material handling.

• Warehousing and logistics industry: In logistics warehouses, it is used to carry large cargo pallets of 5-10 tons. The chain cooperates with forklift attachments to achieve rapid loading, unloading and stacking of goods. In the port cargo yard, when lifting bulk cargo in containers (such as steel and wood, 2-8 tons each), multiple chains can be used in combination to evenly distribute the force and ensure smooth lifting of the cargo. The average daily lifting operation volume can reach 80-100 times.