mod. SA 25
© Raimondi S.p.a.
machines & tools for the tile & stone professional
Chapter 2
Safety rules
Page 12/44-2
2.10
Vibrations
The machine was designed to minimize the effects generated by vibrations. In any case, these are associated to relevant
factors, such as the type of material to be cut and wear of the disc.
The results of the measurements carried out in the field, implementing UNI EN ISO 8662-12:1999, are the following:
Handle
Linear values
(0 = n.a.)
A lin x
16,0
m/sec
2
A lin y
16,5
m/sec
2
A lin z
12,2
m/sec
2
A (lin) sum
26,4
m/sec
2
Weighted values
ISO 5349/2001 (0 = n.a.)
A lin x
1,5
m/sec
2
A lin y
1,8
m/sec
2
A lin z
1,3
m/sec
2
A (lin) sum
2,7
m/sec
2
A (8) (m/sec
2
)
1,0
1,4
1,7
1,9
2,1
2,3
2,5
2,7
1
2
3
4
5
6
7
8
Exposure time (hours)
Formula to calculate the level of daily exposure to vibrations - A(8)
For the comparison with exposure limit values and action values, the total weighted acceleration, obtained through the vector
sum of the components, shall be standardized, namely analytically referred to a reference time of 8 hours.
where, in line with the standard adopted symbols:
It is the total acceleration, sum of the three axial components.
It is the weighted equivalent acceleration for 8 hours.
It is the overall acceleration exposure time -
A
(w)sum
It is the reference time (8 hours, equal to 480 minutes or 28800 seconds)
In the overall assessment, non-continuous use caused by time fragmentation for material positioning and removal thereof
once split up
shall be taken into account. RAIMONDI S.p.A. believes SA 25 shall be included in the group of machines not
exceeding the limit values provided for by the Directive 2004/44/EC.
If during the working day the operator foresees several exposures to vibrations of different origin and entity (as for the use of
several vibrating equipments), the parameter A(8) will have to be calculated as weighted sum
of the different contributions:
