The mentioned data are
noise emission values
refers to the airborne noise emitted by a press.
The noise emission - in contrast to the noise reception - is
calculated for standardized installation conditions and conditions
for operation. Noise emitted by other sources and reflected noise
is not taken into account. Therefore, noise emission is a
characteristic that relates only to the source.
Parameters for the noise emission are as follows:
Emission sound pressure level at the workplace
Sound power level
What is the emission sound pressure level at the workplace?
The emission sound pressure level at the workplace indicates
how loud it would be at the workplace directly assigned to the
press if it were only affected by the noise from this one press
without any further background noise or reflected sound from the
surrounding walls and ceilings. This noise emission value is needed
as it is not possible to assess how noisy it will be directly at
the workplace if only the sound power level is taken into account.
What is the sound power level?
The sound power level indicates how much noise is emitted in
total (in all directions). The sound power
level is suited for comparing several presses; however, it is
not suited for deriving safety precautions,
such as the selection, provision and use of suitable personal
The sound power level must specify if the emission sound
pressure level is higher than 80 dB (A).
values are dependent on:
- the machine configuration
- the production speed
- the fold type (only postpress equipment)
- the paper
- structural conditions
- other sources of noise
This is why immission values may deviate from the
above-mentioned emission values. Any soundproofing measures to be
effected by the operator are to be geared towards the pertinent
local laws, guidelines and local immission values.
For further information please ask your Heidelberg branch.