Quality Inspection

At heuipump.com, we are dedicated to delivering top quality. Each HEUI pump goes through a meticulous three-step inspection process before shipment, including a comprehensive examination, random sampling, and batch assessment. You can browse our catalog with confidence, knowing our products have undergone rigorous quality checks to ensure your complete satisfaction.

The production of HEUI pumps involves a 15-step quality inspection process, covering everything from raw material selection to in-production checks and final product inspection. Skipping even one step can compromise quality or lead to production failure. That’s why each step is overseen by specific, skilled workers, making our production team highly professional and reliable.

Here are some description of HEUI pumps’ produce processes:

1. Inspect raw materials and make backup of raw materials test report;

2. Cutting raw materials with blanking machine;

3. Inspect raw material’s cutting diameter and length;

4. Forging and forming processing on the raw materials;

5. Inspectors conduct the all kinds of inspections of forming blank;

6. Remove the blank scrap ;

7. Blast the surface of the blank;

8. Conduct surface treatment inspection after sandblasting;

9. Perform blank machining;

10. Process HEUI pumps’s body seal threading;

11. Process HEUI pumps body connection threading;

12. Process HEUI pumps’s hole;

13. Inspector conducts general inspection;

14. Install the HEUI pumps;

15. The packing workshop finish product packaging.

Before sending out of the factory, the finished HEUI pumps still need to undergone through three inspections—full inspection, random inspection, and batch inspection. In these inspections, different brands of test benches are used to test the same HEUI pumps for total of no less than three times.

Apart from above, HEUI pumps is one of the most important running parts, it is also one of parts with the highest damage rate, even tiny particles can cause failure of HEUI pumps and even entire components. So it is important to make sure the whole produce process and installation and its working place are dust-free.