Qingdao Haosail Machinery Co., Ltd.

In a Grade 100 chain sling system, connecting components are essential for transferring loads between chains, hooks, and other lifting accessories. As a commonly used component, Grade 100 Connecting Links (G100 Connecting Links) provide a secure connection solution for chain assemblies and are widely applied in heavy-duty lifting operations.

To ensure product performance and consistency, professional load testing is an important part of the manufacturing and quality inspection process.

Introduction to Grade 100 Connecting Links

A Grade 100 Connecting Link, also known as a G100 chain connecting link or repair link, is designed for connecting Grade 100 alloy chains with hooks, master links, and other rigging components.

Compared with Grade 80 connecting links, Grade 100 connecting links are manufactured from higher-strength alloy steel and provide improved strength performance while maintaining a relatively compact structure.

Typical applications include:

· Grade 100 chain sling assemblies

· Connecting chains and lifting hooks

· Replacement and maintenance of chain components

· Heavy lifting and industrial rigging applications

The two-piece design, consisting of a connecting link body and locking pin system, allows convenient assembly while maintaining reliable connection performance.

Why Load Testing Is Necessary

As a load-bearing component in a lifting system, the connecting link must withstand complex forces during operation, including tension and dynamic loading.

Load testing helps verify:

· Material strength and forging quality

· Heat treatment performance

· Structural integrity of the connecting link

· Consistency between production batches

Through strict testing procedures, manufacturers can ensure that each batch meets the required technical specifications before shipment.

Grade 100 Connecting Link Load Testing Process

1. Pre-Test Inspection

Before testing, samples are selected from production batches and inspected carefully, including:

· Product dimensions

· Surface condition

· Marking and traceability

· Assembly condition of pins and components

This step ensures the tested products represent the actual production quality.

2. Proof Load Testing

The Grade 100 Connecting Link is installed on a calibrated tensile testing machine and subjected to a specified proof load.

During the test process:

· The load is applied gradually and evenly

· The product deformation is monitored

· The connecting link is inspected after unloading

A qualified connecting link should maintain its original structure without unacceptable deformation after the proof load test.

3. Breaking Load Testing

For design verification and performance evaluation, breaking load tests can be conducted on sample products.

The test provides valuable information about:

· Ultimate breaking strength

· Product design performance

· Material and heat treatment quality

Testing data helps optimize manufacturing processes and maintain stable product quality.

Quality Control of Grade 100 Connecting Links

At Qingdao Haosai, Grade 100 Connecting Links are manufactured through controlled production processes, including:

· Alloy steel material inspection

· Precision forging

· Heat treatment control

· Dimensional inspection

· Mechanical load testing

· Final quality inspection

Each production batch is evaluated to ensure reliable performance and compatibility with Grade 100 chain sling systems.

Conclusion

Load testing is a critical procedure for verifying the performance of Grade 100 Connecting Links. Through professional testing methods and strict quality control, manufacturers can provide reliable rigging components for demanding lifting applications.

As an important connection element in Grade 100 chain systems, properly tested connecting links help improve the safety and efficiency of lifting operations.

About us:

Qingdao HaosaiL specializes in manufacturing high-quality rigging hardware, including Grade 80 and Grade 100 chains, connecting links, master links, hooks, shackles, and other lifting accessories, providing professional lifting solutions for customers worldwide.