Hydraulic Cylinder Seals
Application examples by equipment
| Equipment | Application | Opening Conditions | Piston Sealing System | Rod Sealing System |
|---|---|---|---|---|
|
Dump Truck  |
⇒ Dump cylinder |
0 ~ 41.2 MPa – 50 ~ 100°C |
For the operating condition that requires extremely high pressure, SPGW is used. Two WR are used considering lateral load that is typical for such operating condition. |
Considering the extremely high operating pressure, HBY is used to reduce damage to rod seals. IUH (A903) with high sealing ability in low temperature is used. |
|
Forklift  Battery Forklift  |
⇒ Tint cylinder |
0 ~ 20.6 MPa – 30 ~ 100°C |
Compact SPGI assures easy assembly and high sealing ability. |
The combination of USI and DKBI is used to realize compact sealing system. |
|
⇒ Lift cylinder |
0 ~ 9.8 MPa – 55 ~ 80°C |
OUHR is used because maintaining oil film is impotant for such single acting cylinder. |
IUH is used in combination with DKBY because of the fluid filling type single acting cylinder. Dust seals are specially designed DKBY. |
|
|
⇒ Steering cylinder |
0 ~ 20.6 MPa – 30 ~ 100°C |
SPG is usable for operating condition requiring extremely short stroke. |
HBTS is used for buffer ring because this system is used in sealed condition. DWI with high dust proof characteristics is used for dust seals. |
|
|
Garbage Truck  Combine  |
⇒ Double acting cylinder |
0 ~ 13.7 MPa – 10 ~ 100°C |
Packing of nitrile rubber are used. |
DKI with high dust proof characteristics is used for dust seals. |
Farm Tractor
 |
⇒ Single acting cylinder |
0 ~ 13.7 MPa – 10 ~ 100°C |
Because of less severe operating condition, O rings are mostly used, but USH packings are recommended to improve durability. |
— |
|
Pressing Machine  |
— |
0 ~ 27.5 MPa – 10 ~ 80°C |
SPGW is used because of high impact pressure and for durability. |
HBTS is used for buffer ring to reduce high impact pressure. Please add a drain to improve durability. |