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Features
High safety factor: The design safety factor is usually ≥ 4, ensuring that it will not suddenly break during use.
The chain joint is well-designed and does not easily fatigue when repeatedly bent. It is suitable for frequent lifting operations.
It is widely applied in cranes, cranes, ship anchor chains, mining equipment, etc., and is particularly suitable for low-speed and heavy-load scenarios.
Product Advantage
The lifting chain is made of high-quality alloy steel (such as G80 grade), which has undergone high-temperature quenching and special heat treatment processes. Its tensile strength is over 800MPa, and its wear resistance is increased by 30%. It is suitable for heavy-duty and high-frequency working environments. Through ISO 3077 international certification, we ensure that every link of the chain meets strict safety standards, effectively reducing the risk of breakage and ensuring operational safety.
Our lifting chains are available in various specifications (such as 6mm-26mm) and structural types (single leg, double leg, four leg), and can be paired with hooks, shackles, and other accessories, making them flexible for use in ports, mines, buildings, and other scenarios. Some models support anti-corrosion galvanizing treatment, which extends their lifespan by 50% in humid or acidic environments, meeting the personalized needs of different industries.
Each chain undergoes 100% non-destructive testing and load testing to ensure no internal defects, and the breaking load error is controlled within ± 5%. The unique closed-loop welding technology increases the strength of the chain joint by 20%, avoiding deformation or cracking. After long-term use, it can still maintain stable load-bearing capacity and reduce maintenance costs.
By optimizing the design of the chain link structure, the weight is reduced while ensuring the bearing capacity, which is 15% -20% lighter than traditional chains and significantly reduces operational fatigue. For example, a 10mm chain can carry a weight of 2 tons and is suitable for high-altitude operations or manual handling scenarios, balancing efficiency and safety.
Product Parameters
Parameter | Specification/Value | Description |
Material | Alloy Steel/Stainless Steel | Options include high-strength alloy steels like 20Mn2, 30CrMo, or corrosion-resistant 304/316 stainless steel. |
Strength Grade | G70/G80/G100 | Complies with ISO 3077 standard; G80 is the common grade, while G100 is high-strength. |
Chain Diameter | 6mm-26mm | Common sizes: 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 26mm. |
Working Load | 0.5T-50T | Varies by diameter and grade. Example: φ10mm G80 chain has a load capacity of ~3.2T. |
Breaking Load | ≥4×Working Load | Safety factor ≥4:1. |
Elongation Rate | ≤20% | Maximum elongation at break. |
Surface Treatment | Galvanized/Blackened/Painted | Anti-rust treatment; galvanized is suitable for outdoor use. |
Certification | ISO 3077/GB/T | International or national standards. |
Product Applications
used for loading and unloading goods, such as containers, large equipment, etc., by using cranes and lifting chains to lift and transport heavy objects.
In mines, it can be used to lift ores, equipment, etc., such as the lifting chain on mining hoists, which can withstand huge weights.
commonly used for tower cranes and other lifting equipment to lift building materials such as steel and concrete components, ensuring the smooth progress of construction.
used for heavy object handling, equipment installation and debugging on various production lines, such as lifting large components such as engines in automobile manufacturing workshops.
Cooperate with shelves, cranes and other equipment to achieve efficient storage and handling of goods, and improve logistics operation efficiency.
In the construction of power towers and the installation of large transformers, lifting chains play an important lifting role.
used for lifting and installing equipment for segmented ships, as well as for the entry and exit of ships in shipyards.
During the lifting and installation of bridge components, lifting chains can provide reliable lifting support.
1.Pre use inspection: Carefully inspect the chain for cracks, deformation, and wear to ensure that the links are securely connected and well lubricated. Check the status of supporting components such as hooks and lifting equipment, and prohibit use if there are any problems.
2.Correctly install the chain: According to the load type and equipment requirements, install the chain correctly on the lifting equipment to ensure smooth operation and no twisting or entanglement.
3.Standardize load operation: Clearly define the rated load of the chain and strictly prohibit overloading. Hang the heavy object steadily at the center of the hook or lifting device to prevent uneven loading. Slowly lift during lifting, confirm stability before moving.
4.Monitoring during homework: Maintain a constant speed during the lifting process to avoid sudden stops and starts. Observe the status of the chain at any time. If there is any abnormal noise or stretching, stop the operation immediately.
5.After use maintenance: Clean the dirt on the chain, apply rust proof oil, and store in a dry and ventilated place after the operation is completed. Regularly conduct professional inspections and maintenance to extend the service life.
FAQ
A lifting chain is a high-strength metal chain, typically made of alloy steel or stainless steel, used for lifting, hoisting, towing, and securing loads. It has the characteristics of wear resistance, impact resistance, and high temperature resistance, and is widely used in industries, construction, mining, ports, and other fields.
Alloy steel (such as 20Mn2, 20CrMo): high strength, impact resistance, suitable for heavy-duty lifting (such as G80, G100 grade chains).
Stainless steel (such as 304, 316): Strong corrosion resistance, suitable for humid, chemical, food and other environments.
Carbon steel: Low cost, used for ordinary load scenarios (such as G70 grade chains), but with lower strength and wear resistance than alloy steel.
G70/G80/G100: "G" represents strength grade, and the number represents the minimum tensile strength of the chain (unit: MPa). For example:
The minimum tensile strength of G80 chain is 800MPa, and the rated load is usually 1/5-1/6 of the breaking load (safety factor 5-6 times)
It is necessary to select a chain with a Working Load Limit (WLL) that meets the requirements (WLL is usually indicated on the chain or label).
Overloading is strictly prohibited!
Lifting chain: specially designed for lifting, heat-treated, high strength, with clear WLL markings.
Ordinary chains (such as transmission chains and decorative chains): Without strength testing, they cannot be used for lifting!