undressi - Pfister Abrasives

your superabrasive choice
UNIDRESS
UNIVERSAL DRESSING UNIT WITH PNEUMATIC MOTOR
( code 405 000 0204 )
Recommended dressing
conditions :
DIA-CBN wheel speed :
10 ÷ 15 m/seg
Depth per pass :
0,05 ÷ 0,10 mm
Axial translation :
500 ÷ 1.000 mm/min
universal truing & dressing device fitting to any grinding machine; conceived for
the optimal straight dressing of resin and vitrified Diamond & CBN wheels.
Motorized :
with a pneumatic motor
Feed pressure :
Spindle rotating speed :
Recommended
dressing wheels :
5,5 ÷ 6,5
3.000
OBER PRT 100
bar
rev./min
* for coarse grit size DIA & CBN wheels
( standard item at stock in CAFRO )
Black Silicon carbide
9/60J
* for medium & fine grit size DIA & CBN wheels
(standard item at stock in CAFRO )
White Aluminum oxide
Dressing wheel dimensions :
Ø 75 x 25 x 12,7 Ø
Dressing wheel speed :
Device dimensions :
11,8
lenght :
width :
height :
Device weight ( dressing wheel included ):
99A 80-I H6 V16
mm
m/sec
215
135
100
mm
mm
mm
7,5
Kg
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3 x 45°
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84
108
12
52
11.5
3 x 45°
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your superabrasive choice
UNIDRESS
UNIVERSAL DRESSING UNIT WITH PNEUMATIC MOTOR
Application example on o.d. rolls grinding machine :
UNIDRESS device adapted to a grinding machine at the tailstock side
Close up of the dressing
operation on a Ø 500
mm resin bonded peripheral Diamond wheel.
View from the pneumatic motor side
of the UNIDRESS device, where the
fitting system to the tailstock side is
clearly visible.
your superabrasive choice
Prescriptions for compressed air feeding :
At the picture below is indicated a correctly designed compressed air feeding equipment :
a. connections and valves : must have the same dimension of the pipes connected with ;
b. feed pressure : the pneumatic motor shall work at 5,5 ÷ 6,5 bar; lower pressures determine power losses, higher pressures may cause damages to the motor, anyway are
shortening his life time;
c. connections and pipes : use oil resistant pipes only; connections shall not cause
throats to the air flow;
d. air cleaning : air shall be free from impurities ( dust, condensation water, dense oil
particles etc.); always connect a filter the nearest possible to the motor; daily discharge the filter;
e. lubrifying : the OBER pneumatic motors must operate with minimal lubrication; use oils
for pneumatic circuits only; whenever possible, insert in the circuit an automatic lubrifying device; the sufficient oil fog quantity hold in the compressed air shall be 3 ÷ 5
mg / m3
components shown on the drawing :
1.
delivered air by the compressor
2.
main pipe
3.
connecting pipe
4.
siphon spillway
5.
shutdown valve
6.
filter
7.
pressure reductor
8.
lubrifying device ( whenever possible automatic type )
9.
connection to pneumatic motor