Quality Inspection

During the production of CR, E1, and Smart common rail injector nozzles, we adhere to a rigorous 15-step quality inspection process. This comprehensive procedure encompasses raw material selection, inspections throughout the production stages, and a final evaluation of the finished products. Each of these 15 steps is vital; omitting any could lead to subpar quality or production issues. To maintain the highest standards, we assign dedicated workers to each stage, ensuring meticulous oversight and responsibility at every step of the process. Here are some description of common rail injector nozzle’ 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 common rail injector nozzle’s body seal threading;

11. Process common rail injector nozzle body connection threading;

12. Process common rail injector nozzle’s hole;

13. Inspector conducts general inspection;

14. Install the common rail injector nozzle;

15. The packing workshop finish product packaging.

Before sending out of the factory, the finished common rail injector nozzle 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 Common Rail Injector Nozzle for total of no less than three times.

Apart from above, Common Rail Injector Nozzle 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 common rail injector nozzle and even entire components. So it is important to make sure the whole produce process and installation and its working place are dust-free.