Briquette press is flat die or ring die?

Q: What is ring die and flat die means? Briquette press is flat die or ring die?

Screw Briquette Press

A: The core part of briquette press is socket and screw or push rod. Referring to briquette presses, there is no ring die and flat die. Ring die and flat die is in terms of pellet making machine. Flat die means the die hole is distributed on a flat disk and there is a roller rolling materials on the disk. Ring die means the die holw is distributed on a ring mold. The roller rolling materials on the inwall of ring mold.