3 Fundamentals of press design

Press safety and certification
– stipulates in the manufacturer’s declaration that the component
complies as far as possible with the ECMD,
– has compiled and archived the required documentation as laid down
by annex V, point 3,
– stipulates the applied safety standards and
– has made reference in the operating instructions to the safety regulations
for the manufacturer of the line into which his components are
to be integrated.
All those involved assume that the prescribed minimum statement, as
indicated in annex II B, is insufficient and the machine cannot be commissioned
until the overall line has been proven to comply with the
ECMD. Frequently, and in particular in the case of large-scale presses,
part of the equipment originates from the user and part of it from the
purchaser of the press. As the ECMD requires static stability and safe
access to all points of possible intervention, with the declaration of
conformity the production line manufacturer assumes responsibility
also for the structural work carried out for the press, for example the
construction of the necessary foundations. The identity of the manufacturer
or construction foreman as defined by ECMD must be contractually
laid down in the case of this type of production line. The responsible
party then has the other contractual partners confirm compliance
with health and safety standards to the extent of their respective performance.
3.6.4 CE marking
The flow chart in Fig.3.6.3 indicates what is required of the manufacturer
wishing to apply the CE mark to his machine. An underlying difference
is drawn between two cases. According to annex IV of the
ECMD, presses intended for manual feed operation have been classified
as hazardous machines since January 1, 1995. In this case, a C standard
– the EN692 for mechanical and EN693 for hydraulic presses – must
exist, and the press must be constructed without restrictions in accordance
with this standard. If this is not the case, or if the relevant C standard
does not yet exist, the manufacturer is required to commission a
type test of the machine by a notified body (i. e. an appropriate testing
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