Long term use of lever hoists with full load indeed increases the risk of chain breakage, mainly due to the following reasons:

1、 The load and wear of the chain itself

Overload use: lever hoists are designed with their rated load-bearing capacity. Long term use with full load or even overload can cause the chain to bear excessive tension, thereby accelerating the wear and aging of the chain.

Fatigue fracture: Under sustained high loads, key components such as the pins in the chain are prone to fatigue fracture. This type of fracture is usually the result of a combination of original material defects (such as dents, scratches, etc.) on the surface of the pin shaft, as well as long-term uneven stress and unstable processing quality.

2、 Usage environment and maintenance situation

Adverse environment: If the lever hoist is used in a damp and highly corrosive environment, the chain is prone to corrosion, reducing its strength and durability.

Insufficient maintenance: Regular maintenance and upkeep of the chain are crucial for maintaining its good condition. If necessary maintenance is lacking, such as not adding lubricating oil in a timely manner, not cleaning debris on the chain, etc., it can lead to increased chain wear and increase the risk of fracture.

3、 Operational norms and safety awareness

Improper operation: If the operator does not operate the lever hoist properly, such as forcefully pulling or pulling the chain out of the groove, it will cause additional impact and damage to the chain.

Weak safety awareness: Some operators do not attach enough importance to safety operating procedures, lack necessary risk awareness and preventive measures, which is also one of the reasons for the frequent occurrence of chain breakage accidents.

4、 How to reduce the risk of chain breakage

To reduce the risk of chain breakage when using a lever hoist with full load for a long time, the following measures can be taken:

Strictly control the load: Ensure that the use of the lever hoist does not exceed its rated bearing capacity and avoid overloading.

Strengthen maintenance and upkeep: Regularly maintain and upkeep the chain, including adding lubricating oil, cleaning debris, and checking the wear of the chain.

Improving the usage environment: Use lever hoists in a dry and clean environment as much as possible to reduce damage to the chain caused by environmental factors.

Improve operational standards: Strengthen training and education for operators to ensure they are familiar with operating procedures and safety precautions, and improve operational standards and safety.

Regular inspection and maintenance: Conduct regular inspections and maintenance on lever hoists to promptly identify and address potential safety hazards.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment