Hydraulic Cylinder Seals | Teng Seng Industrial –Hydraulic &Pneumatic Products

Hydraulic Cylinder Seals

Application examples by equipment

Equipment	Application	Opening Conditions	Piston Sealing System	Rod Sealing System
Robot	—	0 ~ 20.6 MPa 0 ~ 210 kgf/cm² – 10 ~ 80°C	High durability SPG is used. Two WR are used to prevent scoring between the piston head and the cylinder tube that can be caused by high lateral load typical for such operating condition.	Parking and dust seal of nitrile rubber are used.
Lift	—	0 ~ 20.6 MPa 0 ~ 210 kgf/cm² – 30 ~ 80°C	OUHR with stick slip proof characteristics is used considering the operating condition that requires to keep working pressure for a long time. O5ZF having small friction resistance is used for the material of wear ring.	HBTS is used to prevent stick slip.
Injection Molding Parking	—	0 ~ 31.4 MPa 0 ~ 320 kgf/cm² – 10 ~ 100°C	SPGW is used since such operating conditions mainly performed under high pressure require the durability. This packing has also excellent durability for the operations requiring extremely short strokes.	HBTS is used for buffer ring to reduce high impact pressure. Please add a drain to improve durability.
Multi-Storey Parking	—	0 ~ 13.7 MPa 0 ~ 140 kgf/cm² – 30 ~ 100°C	High durability SPG is used. O5ZF having small friction resistance is used for the material of wear ring.	USHR is used for packing to prevent stick slip. DKB is used for dust seal to prevent the oil scraping off.
Hydraulic Elevator	—	0 ~ 4.9 MPa 0 ~ 50 kgf/cm² – 20 ~ 80°C	—	IUY (of special shape) is used for packing to prevent stick slip. Rareflon is molded on to the IUY lip.
Plunger Pump	—	0 ~ 13.7 MPa 0 ~ 140 kgf/cm² – 10 ~ 80°C	—	Fabric reinforced rubber V packing are used because in such operating conditions, fluids with poor lubricity, such as water and agricultural chemicals are handled and frequency of operation is high. When pressure and frequency of operation are low, rubber V packing can be used.

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