Table presses with different drive types are also suitable for use as a single workstation,
as for use in punching systems.
The advantage of these presses is that different tools can be used alternately.
This is particularly economical in systems with which different articles with different punching patterns are produced.
Punching unit with exchangeable cutting elements for sheets and profiles up to a material thickness of 25.0 mm and a hole diameter of 150.0 mm
JOKA punching units consist of a special cast stand that accepts the punch and die and ensures the exact axis alignment between the cutting elements (punch and die). In addition, there is a stripping system in the upper part of the tool stand, as the material wipes off automatically after punching. The scraper contains two or more disc spring packages that guarantee perfect scraping even in the border areas. A fixed connection between the tool and the upper part of the press is therefore not required. To determine the exact position, each tool has a positioning pin (two for shaped holes) on the underside, which is precisely aligned with the cutting elements (center of the hole).
The above picture shows a complete punching unit without cutting elements and one cutting set (punch and die) each for round hole or shaped hole.