7
TECHNICAL FEATURES
GB
Table 1
Model
Code
Speed
Power
Cons.
Weight Wheel
Wheel
Wheel
Lenght
Body
Noise
Vibrat.
Ø max Width Ø hole
D
L1
I
L
E
Lp - Lw
a
h
(rpm)
(watt) (Nl/min)
(Kg.)
(mm)
(mm)
(mm)
(mm)
(mm)
(dB(A))
(m/s
2
)
SM2A
8100506 12000
330
450
1.2
50
20
10
305
50
88.4 - 102.2
3.7
SM30
8101008 7000
730
950
3.4
100
25
20
510
65
79.2
2.6
SM31
8101009 5500
730
950
3.4
150
25
20
510
65
79.2
2.6
Air inlet SM2A 1/4” GAS - SM30-31 3/8"GAS; Ø inside tube min. SM2A 8 mm; SM30-31 12 mm
Noise emission levels determined by using ISO/CD 15744
Levels of vibrations at the handle determined by using ISO 8662
Note: make sure that the performance features required correspond to those described above, otherwise it will be
necessary to choose a different model from the broad range offered by OBER.
TOOL NOISE
GB
The table of technical specifications indicates the noise level- where the noise level exceeds 85 dB (A) the noise power is
also indicated. Ear protectors must be worn where the noise level exceeds 85 dB (A) at the operator position. We
recommend that you also wear ear protectors below this noise level.
Noise risk and hearing damage are related to the intensity of the noise source and the length of exposure. Noise risk must
be assessed on a case by case basis taking into account these two factors. Measures should be taken to protect the user
against hearing damage in accordance with current Health and Safety regulations.
The formula and table can be used to calculate the daily exposure level for a tool using the use coefficient c. The use
coefficient c for grinders is between 30 and 60%.
L
eq,d
= L
eq
+ 10 Log
10
T
e
/ T
0
TOOL VIBRATION
The table of technical specifications indicates the vibration level for the tool; the vibration level is calculated as the squared
weighted value of the acceleration frequency, Vibration risk is related to the intensity of the vibration source and the length
of exposure. Vibration risk must be assessed an a case by case basis taking into account these two factors. Measures
should be taken to protect the user against vibration injury in accordance with current Health and Safety Regulations.
The formula and table can be used to calculate the daily exposure level for a tool using the use coefficient c. The use
coefficient c for grinders is between 30 and 60%.
5
,
0
8
,
8
t
a
a
h
h
h
Te= c T
0
T
0
= 8h
Daily exposure
level
L
eq
c
L
eq,
d
85
30%
45%
60%
79,8
81,5
82,8
t = c 8h
Daily exposure
level
a
h
c
a
h,8h
2,5
30%
45%
60%
1,4
1,7
1,9
