LINK Systems System 1100 Tonnage Monitor - Manual (Page 57)

APPLICATIONS INFORMATION
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4-7
4.2.3 Overdrive Double Action Presses
Overdrive double action presses have an inner and an outer slide
that are driven by connections from crankshafts located in the
crown (top) of the press structure.
If the strain links are installed on the uprights of the press
(double action presses are usually straight side structures) the
peak tonnage displayed will be the sum of the outer slide and the
inner slide tonnages. Additionally, One data window can be used to
measure the tonnage of the outer slide alone. The data window cam
should be set to close before the outer slide reaches the bottom of
the stroke then open before the inner slide contacts the material
to be formed.