Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Series <strong>MY3A</strong>/3B<br />
Cushion Capacity<br />
Absorption Capacity of Air Cushion and Stroke Adjusting Unit (MY3B)<br />
MY3B16<br />
Horizontal collision: P = 0.5 MPa<br />
MY3B25<br />
Horizontal collision: P = 0.5 MPa<br />
2000<br />
Maximum collision speed (H)<br />
with fixed intermediate position<br />
2000<br />
Maximum collision speed (H, L)<br />
with fixed intermediate position<br />
1000<br />
1000<br />
Collision speed (mm/s)<br />
500<br />
400<br />
300<br />
200<br />
L unit<br />
H unit<br />
Air cushion<br />
Maximum collision speed<br />
(L) with fixed intermediate<br />
position<br />
(Refer to Note 4 on<br />
page 1125.)<br />
Collision speed (mm/s)<br />
500<br />
400<br />
300<br />
200<br />
H unit<br />
Air cushion, L unit<br />
100<br />
100<br />
80<br />
0.2<br />
0.3 0.4 1 2 3 4 5 10<br />
80<br />
1<br />
2<br />
3<br />
4<br />
5 10 20 50<br />
m3max<br />
m2max<br />
Load mass (kg)<br />
m1max<br />
m3max<br />
m2max<br />
Load mass (kg)<br />
m1max<br />
MY3B40<br />
Horizontal collision: P = 0.5 MPa<br />
MY3B63<br />
Horizontal collision: P = 0.5 MPa<br />
2000<br />
Maximum collision speed (H, L)<br />
with fixed intermediate position<br />
2000<br />
Maximum collision speed (H, L)<br />
with fixed intermediate position<br />
1000<br />
1000<br />
Collision speed (mm/s)<br />
500<br />
400<br />
300<br />
H unit<br />
Air cushion, L unit<br />
Collision speed (mm/s)<br />
500<br />
400<br />
300<br />
H unit<br />
Air cushion, L unit<br />
200<br />
200<br />
100<br />
80<br />
1<br />
2<br />
3<br />
4<br />
5 10 20 30 40<br />
100<br />
80<br />
2<br />
3<br />
4<br />
5 10 20 30 40 100<br />
m3max<br />
m2max m1max<br />
Load mass (kg)<br />
m3max<br />
m2max<br />
Load mass (kg)<br />
m1max<br />
Air Cushion Stroke<br />
Bore size (mm)<br />
16<br />
25<br />
40<br />
63<br />
Cushion stroke<br />
13<br />
18<br />
25<br />
30<br />
Stroke Adjusting Unit<br />
Fine Stroke Adjustment Range<br />
Unit: mm<br />
Unit: mm<br />
Bore size (mm) Fine stroke adjustment range<br />
16<br />
0 to -10<br />
25<br />
0 to -12<br />
40<br />
0 to -16<br />
63<br />
0 to -24<br />
Note) The maximum operating speed will differ when the stroke<br />
adjusting unit is used outside the maximum fine stroke<br />
adjustment range (with reference to the fixed stroke end),<br />
such as at a fixed intermediate position (X416, X417).<br />
(Refer to the graph above.)<br />
1134<br />
Calculation of Absorbed Energy for Stroke<br />
Adjusting Unit with Built-in Shock Absorber<br />
Type of<br />
collision<br />
Kinetic<br />
energy E1<br />
Thrust<br />
energy E2<br />
Absorbed<br />
energy E<br />
Horizontal<br />
υ m<br />
F • s<br />
s<br />
Vertical<br />
(downward)<br />
1<br />
2<br />
υ m<br />
m •υ 2<br />
Unit: N • m<br />
Vertical<br />
(upward)<br />
F•s + m •g •s F•s - m •g •s<br />
E1 + E2<br />
s<br />
s<br />
υ m<br />
Symbols<br />
υ: Speed of impacting object (m/s)<br />
m: Mass of impacting object (kg)<br />
F : Cylinder thrust (N)<br />
g : Gravitational acceleration (9.8 m/s 2 )<br />
s : Shock absorber stroke (m)<br />
Note) The speed of the impacting object is<br />
measured at the time of collision with the<br />
shock absorber.<br />
Note) With an operating pressure of 0.6 MPa or<br />
larger, the use of a cushion or an external<br />
shock absorber conforming to the<br />
conditions on page 1135 is recommended.
Change language