Datasheet

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When mounted with the nut, sometimes the buffer operation is not smooth, or the buffer does not slide.
[Possible causes]
• The tightening torque of the nut for mounting the buffer is too high.
• Particles stuck to the sliding surface, or it is scratched.
• Lateral load applied to the piston rod, causing eccentric wearing.
[Remedy]
Tighten the nut to the recommended tightening torque.
The nut may become loose depending on the operating conditions and environment. Be sure to perform regular maintenance.
General Purpose
Product part no.
Product specifications
Pad diameter Mounting thread size
Nut tightening torque
ZP
∗ (02 to 08) U, B∗
ZP∗ (10 to 16) UT, CT∗
ZP∗ (2004 to 4010) U∗
M8 x 1
M10 x 1
M14 x 1
ø
2 to ø16
2004 to 4010
ø10 to ø32
ø20 to ø50
1.5 to 2.0 N
·
m
2.5 to 3.5 N
·
m
6.5 to 7.5 N
·
m
Heavy-duty Pad
Product part no.
Product specifications
Pad diameter
Mounting thread size
Buffer body material
Nut tightening torque
ZP
∗ (40/50) H∗
ZP∗ (40/50) HB∗
M18 x 1.5
M18 x 1.5
M22 x 1.5
Aluminum alloy
Brass
Steel
Aluminum alloy
Brass
Steel
Aluminum alloy
Brass
Steel
9.5 to 10.5 N
·
m
28 to 32 N
·
m
48 to 52 N
·
m
9.5 to 10.5 N
·
m
28 to 32 N
·
m
48 to 52 N
·
m
9.5 to 10.5 N
·
m
45 to 50 N
·
m
75 to 80 N
·
m
ø
40, ø50
ø63, ø80
ø100, ø125
Heavy-duty Ball Joint Pad
Product part no.
Product specifications
Pad diameter Mounting thread size Buffer body material
Brass
Steel
Brass
Steel
Brass
Steel
Nut tightening torque
ZP2-
∗F (40/50) H∗
ZP2-∗F (40/50) HB∗
M18 x 1.5
M22 x 1.5
M22 x 1.5
ø
40, ø50
ø63, ø80
ø100, ø125
28 to 32 N
·
m
48 to 52 N
·
m
45 to 50 N
·
m
75 to 80 N
·
m
45 to 50 N
·
m
75 to 80 N
·
m
ZP∗ (10 to 32) U, C, B, D∗
ZP∗ (10 to 16) F∗
ZP∗ (40, 50) U, C, B, D∗
ZP∗ (20 to 50) F∗
ZP∗ (63/80) H∗
ZP∗ (63/80) HB∗
ZP∗ (100/125) H∗
ZP∗ (100/125) HB∗
∗
∗
∗
∗
∗
∗
ZP2-∗F (63/80) H∗
ZP2-∗F (63/80) HB∗
ZP2-∗F (100/125) H∗
ZP2-∗F (100/125) HB∗
J
JB
JF
J
JB
JF
J
JB
JF
JB
JF
JB
JF
JB
JF
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Time of Replacement of Vacuum Pad
The vacuum pad is disposable. Replace it on a regular
basis.
Continued use of the vacuum pad will cause wear and tear on the
adsorption surface, and the exterior dimensions will gradually get
smaller and smaller. As the pad diameter gets smaller, lifting force
will decrease, though adsorption is possible.
It is extremely difficult to provide advice on the frequency of
vacuum pad exchange. This is because there are numerous
factors at work, including surface roughness, operationg
environment (temperature, humidity, ozone, solvents, etc.), and
operating conditions (vacuum pressure, workpiece weight,
pressing force of the vacuum pad on the workpiece, presence or
absence of a buffer, etc.).
Thus, the customer should decide when the vacuum pad should
be exchanged, based on its condition at time of initial use.
The bolt may become loose depending on the operating
conditions and environment. Be sure to perform regular
maintenance.
Product specifications
Pad diameter Product part no. Bolt
Bolt tightening
torque
ø40, ø50
ø63, ø80
ø100, ø125
ZP (100/125) H∗
ZP (100/125) HB∗
M3 x 8
M4 x 8
M5 x 10
0.7 to 0.9 N
·
m
0.9 to 1.1 N
·
m
2.3 to 2.7 N
·
m
Assemble parts with recommended tightening torque.
ZP (40/50) H∗
ZP (40/50) HB∗
ZP (63/80) H∗
ZP (63/80) HB∗
Recommended Tightening Torque for Replacement
of Heavy-duty Pad
Model Selection
Front matter 30