ALFAMATIC Press-Right, User Manual, Page: 7 / 42

reached does not exceed the minimum force and/or does exceed the maximum force, the piece is
rejected.
From a theoretical point of view there is an ideal curve that may be obtained by manufacturing
perfect pieces (in practice a sample curve may be obtained by carefully manufacturing selected
pieces). Any geometric tolerance or difference in materials result in a curve that is different from
the ideal curve. In practice, there is a tolerance range around the sample curve such that, if the curve
obtained from the current process does not stay inside such range, the piece is classified as scrap.
The piece is good only if the analysis of the minimum/maximum limits and the tolerance range have
a positive result.
Press-Right also monitors the cylinder return at the end of the production process.
Such return may result from the exertion of a specific force (stop force) or at a specific position
(final position). It is possible to set both force and position stop values at the same time; in this case
the first value to be entered will govern the cylinder return. By changing the value of the
configuration, it is also possible to command the cylinder return when the curve is off the tolerance
range. It is always possible to have the unit return by pressing the key on the keypad
(stopping the operation).