No need to drilling holes, no wast and no iron scrap occured. 

Self-piercing processing allowed , Non metallic sandwich material

Application  of self-piercing machine

1. Automotive metal sheet components

2. Washing machine, air conditioning's metal sheet etc.

3. Computer chassis, home appliances metal sheet etc.

4. Fan casing and industrial equipment application.

5. Busway's industrial engineering applications.

6. Elevator's metal sheet and other commercial facilities.

7. Other metal sheet connect occasion.