Load Testing of Standard Overhead Bridge Crane, Crane Manufacturer

Overhead bridge cranes are essential pieces of equipment in many industrial settings, used to move and lift heavy loads. These cranes are designed to handle specific weight loads, and it is essential to ensure that they are functioning correctly before use. One way to ensure the proper functioning of overhead cranes is by conducting load tests.

A load test is a crucial part of the inspection and maintenance of an overhead crane. The purpose of a overhead crane load test is to determine whether the crane is capable of lifting the maximum weight it is designed to handle safely. A load test involves attaching a weight to the crane and testing its capacity under controlled conditions. In this article, we will discuss the three aspects of an overhead crane load test: pre-preparation, testing process, and after process.

Pre-preparation Before Testing

Before conducting a overhead load test, it is essential to prepare for the test. The preparation process involves several steps, including:

1. Reviewing the crane's load capacity: Before load test, please review the crane's load capacity, and an electric chain hoist or wire rope hoist is required to fixed on the overhead crane. In addition, a load cell is needed for test.

2. Choosing the weight to be used: Based on overhead crane standard, a qualified overhead crane should have the ability to withstand 125% loads. Meanwhile, the weight should be securely attached to the crane, and the attachment points should be checked before the test.

3. Clearing the area: The area around the crane should be cleared of any obstructions that could interfere with the test. All workers should be prevent from entering the testing area during the test.

4. Ensuring safety measures: Safety measures should be in place to ensure the safety of personnel during the test, including securing the crane and place warning signs to ensure that no one is in the area during the test.

Testing Process

The load test process involves several steps, including:

1. Attach load cell on an overhead crane to ensure safe operation in real-time.

2. Attaching the weight to the crane: the weight attachment points should be checked before starting the test.

3. Lift the test loads at least 18 inches but no higher than 36 inches above the ground. And hold it for at least five minutes. The crane operator should lift the weight slowly to ensure that the crane is stable and that the weight is evenly distributed.

4. Repeat the load test twice.

5. Monitoring the crane's performance: During the test, the crane's performance should be monitored to ensure it functions correctly. The operator should check for any signs of instability, and the crane should be stopped immediately if any issues are detected.

6. Document the load test while testing.

After Test

After the load test is completed, several steps should be followed to ensure that the crane is safe to use, including:

1. Inspection: The crane should be inspected for any signs of damage or wear and tear that could affect its performance. Any issues found should be addressed before the crane is used again.

2. Documentation: The load test should be documented, including the weight used, the duration of the test, and any issues detected during the test.

3. Certification: After passing the load test, the crane should be certified as safe to use. This certification should be displayed on the crane and kept on file for future reference.

Conclusion

Overhead crane load testing is a crucial part of the inspection and maintenance of overhead cranes. By following the pre-preparation, testing process, and after process steps outlined in this article, you can ensure that your overhead crane is safe to use and capable of handling the maximum weight it is designed to handle. Regular load testing is essential to ensure the safety and reliability of your crane and should be conducted in accordance with manufacturer's instructions and local regulations.

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