70/140H-8 Series (2310KB) - TAIYO
70/140H-8 Series (2310KB) - TAIYO
70/140H-8 Series (2310KB) - TAIYO
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Standard built-in high-performance cushion <strong>70</strong>/<strong>140H</strong>-8 series<br />
Enhanced cushioning effect to keep up with high-speed machines.<br />
Identical mounting dimensions to those of <strong>70</strong>/<strong>140H</strong>-7 series that are<br />
field-proven for long years (conform to JIS standards)<br />
Enhanced cushioning function has reduced<br />
shocks occurring when actuator stops.<br />
Acceleration during deceleration<br />
(G-value)<br />
G-value after inrush into cushion (inrush speed 400 mm/s)<br />
1.5<br />
1.0<br />
0.5<br />
0<br />
0.5<br />
Inrush into cushion<br />
AX211 (2-wire, 2-LED type)<br />
The red LED (detecting range),<br />
and the green LED (optimum position) light up.<br />
AX101 (2-wire)<br />
The indicator lamp can be easily<br />
seen from rear side as well<br />
as from front side.<br />
Conventional<br />
product<br />
Time<br />
<strong>70</strong>/<strong>140H</strong>-8<br />
● The adoption of switches common to other series permits the substantial<br />
reduction of the kinds of maintenance switches.<br />
● The lighting status of the switch can be checked with wide range.<br />
■ Range of bore applicable to <strong>70</strong>/<strong>140H</strong>-8R with switch<br />
Single Rod<br />
Double Rod<br />
Rod A Rod B Rod C<br />
φ40~φ125 φ32~φ140 φ40~φ140<br />
φ32~φ140 φ40~φ140<br />
❇ The rod A with switch has been standardized.<br />
❇ The rods B and C of a φ140 bore have been standardized.<br />
Cushion ring<br />
● The optimization of the groove profile<br />
has improved cushioning performance<br />
(compared with <strong>70</strong>/<strong>140H</strong>-7).<br />
● The cushion ring with the U-shape groove<br />
which features little change in the<br />
performance of the cushion stroke<br />
regardless of fluctuation in oil temperature.<br />
Cushion valve<br />
● The improved structure that the cushion valve<br />
is hard to come off even when the screws<br />
are excessively slackened at adjustment for<br />
more reliable security.<br />
● The structure that is convenient for speed fine<br />
tuning during the cushion stroke<br />
● Added gaskets made of fluoric rubber<br />
(as well as the check plug)<br />
Time required for cushion stroke<br />
against cushion valve speed<br />
Cushion stroke time<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
Conventional<br />
product<br />
0.2<br />
0<br />
0 1/2 1 1 1/2<br />
Cushion valve opening<br />
<strong>70</strong>/<strong>140H</strong>-8<br />
●Standard built-in high-performance cushion<br />
●Products conforming to JIS standards<br />
(with mounting dimensions identical to those of <strong>70</strong>/<strong>140H</strong>-7 series)<br />
Succeeded features of <strong>70</strong>/<strong>140H</strong>-7<br />
Applicable to highly frequent use<br />
To meet requests for the highly frequent use under<br />
high loads, the rods B and C have been<br />
specialized, and the weary strength of the piston<br />
rods has been improved.<br />
Simple structure<br />
●Common switches<br />
●Enhanced safety countermeasures<br />
The bush part and bush holder of the rod C type<br />
have been discontinued with production. The<br />
bush, of which structure has been simplified, has<br />
been specialized in the rod C.<br />
Easier disassembly and assembly<br />
The housing shape of the cylinder tube and cover<br />
seal part has been modified for easier disassembly<br />
and assembly.<br />
Improved sealing performance<br />
of air vent plug<br />
The sealing of the air vent part (also used as the<br />
check plug) has been changed to the canned<br />
hydrogenated nitrile rubber for more reliable<br />
sealing after air vent.<br />
Improved durability<br />
Superior abrasion-proof copper alloy is adopted as<br />
bush material to improve the bush durability.