It is one of the most intensively used machines among jewelry machines. Sprals can be produced in rectangular, drop, etc. shapes. An internally connected core earrings and bracelets of the desired diameter and shape using the same internal shape and a cam, using you can produce.
However, by using only a strip of plate, you can remove all the unsoldered spirals also has a special tooling for production. Also with this machine, with a small operational Endless winding can also be performed for some models using the impact head apparatus.