What is the difference between a spinning head and a punching head?

First of all, let's talk about the difference between stamping and spinning: good stamping has little damage to the head and good size guarantee, but it is suitable for small heads.

The rotation is a bit poor, especially in the R section. Uneven thickness. But it can form a bigger head!

No matter how big or small the head is, it can be stamped and rotated. It's just that small heads are basically stamped, because stamping requires molds, and small heads are basically standard molds. You can press them as long as you say DN. Bronzing is divided into cold stamping and bronzing. Carbon steel should be hot stamped, stainless steel should be cold stamped, thin steel should be cold stamped and thick steel should be hot stamped.

If it is a big head, spinning is often chosen, but the disadvantage of spinning is that the R section of the head is not well formed.