The “E”Series heads operate in a way similar to a three jaw chuck, but use an adjustment mechanism
that is much more precise and repeatable. The three dies are adjusted with a single adjustment,
and locked in position (the die slides do not open during the rolling cycle). If required, the slides can easily be adjusted individually.
To prevent mis-tracking, a springloaded shaft holds a synchronizing gear in position between the dies. When rolling, the gear is pushed ahead of the part and into the rolling head. When the correct depth is reached, the part is retracted and the gear follows the part(under spring pressure) back into position, to re-synchronize the rolls