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Piston Seals

Piston Seals

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Hydraulic Seals

Guiding Elements and Guiding Tapes

Piston Seals

Piston seals or piston rings are used in hydraulic cylinders for fluid sealing. They are placed inside the cylinder head and seal against the cylinder bore, preventing fluid from flowing across the cylinder head. This allows pressure build-up on one side of the piston, making the cylinder extend or retract.

Piston Seals
Prodoucts List
KDAS Piston Seal
KDAS Piston Seal

KDAS Piston Seal

Max pressure

40MPa

Temp range

-35℃ +100℃

Max speed

0.5m/s

KDAS Piston Seal is a compact double-acting hydraulic seal designed for hydraulic cylinders under high pressure conditions. Its integrated sealing structure provides excellent leakage control, wear resistance and stability. Our KDAS seals are suitable for excavators, mobile machinery and industrial hydraulic systems, with customized solutions

KDAS Piston Seal

GSF Piston Seal
GSF Piston Seal

GSF Piston Seal

Max pressure

60MPa

Temp range

-30℃ +200℃

Max speed

5m/s

GSF Piston Seal, also known as Glyd Ring piston seal, combines a PTFE sealing ring with an elastomer energizer to achieve reliable dynamic sealing. It offers low friction, smooth operation and long service life for double-acting hydraulic cylinders. Widely used in industrial equipment, mobile hydraulics and precision machinery.

GSF Piston Seal

SPGW Piston Seal
SPGW Piston Seal

SPGW Piston Seal

Max pressure

50MPa

Temp range

-30℃ +100℃

Max speed

1.5m/s

SPGW Piston Seal is a double acting hydraulic piston seal designed with PTFE sealing material and elastomer energizer. It provides stable sealing performance, low friction and long service life in high pressure hydraulic cylinders. SPGW seals are widely used in construction machinery, industrial hydraulics and mobile equipment.

SPGW Piston Seal

SPG Piston Seal
SPG Piston Seal

SPG Piston Seal

Max pressure

35MPa

Temp range

-30℃ +200℃

Max speed

1.5m/s

SPG Piston Seal is a hydraulic cylinder sealing element designed for reliable reciprocating motion. It offers excellent pressure resistance, low leakage and wear resistance for hydraulic systems. SPG seals are widely used in construction machinery, industrial equipment and mobile hydraulics.

SPG Piston Seal

AQ2 Piston Seal
AQ2 Piston Seal

AQ2 Piston Seal

Max pressure

40MPa

Temp range

-30℃ +200℃

Max speed

2m/s

AQ2 Piston Seal is a combined hydraulic seal designed for double acting cylinders. The seal structure with elastomer energizer provides stable sealing force and long service life under high pressure conditions. AQ2 seals are widely used in construction machinery, industrial equipment and hydraulic systems.

AQ2 Piston Seal

AQ5 Piston Seal
AQ5 Piston Seal

AQ5 Piston Seal

Max pressure

60MPa

Temp range

-30℃ +200℃

Max speed

3m/s

AQ5 Piston Seal is a double acting hydraulic seal with dual elastomer energizer structure. It provides strong sealing force, high pressure resistance and long service life for hydraulic cylinders. AQ5 seals are suitable for construction machinery, industrial equipment and heavy duty hydraulic systems.

AQ5 Piston Seal

GNT Piston Seal
GNT Piston Seal

GNT Piston Seal

Max pressure

60MPa

Temp range

-30℃ +200℃

Max speed

5m/s

GNT Piston Seal is a high performance hydraulic seal designed for reciprocating cylinder applications. Its optimized sealing structure provides stable sealing force, low leakage and long service life. GNT seals are widely used in hydraulic systems, construction machinery and industrial equipment.

GNT Piston Seal

GSD Piston StepSeal
GSD Piston StepSeal

GSD Piston StepSeal

Max pressure

60MPa

Temp range

-30℃ +200℃

Max speed

5m/s

GSD Piston Seal is a dynamic hydraulic sealing element designed for reciprocating cylinder applications. Its optimized structure provides reliable sealing force, low leakage and long service life. GSD seals are widely used in hydraulic equipment, construction machinery and industrial systems.

GSD Piston StepSeal

OMKS Piston Seal
OMKS Piston Seal

OMKS Piston Seal

Max pressure

60MPa

Temp range

-30℃ +200℃

Max speed

5m/s

OMKS Piston Seal is a compact hydraulic sealing element designed for reliable cylinder operation. Its composite structure provides good sealing performance, wear resistance and long service life under pressure conditions. OMKS seals are widely used in hydraulic equipment and industrial systems.

OMKS Piston Seal

OK Piston Seal
OK Piston Seal

OK Piston Seal

Max pressure

50MPa

Temp range

-30℃ +110℃

Max speed

1m/s

OK Piston Seal is a compact hydraulic sealing element designed for hydraulic cylinders. Its simple structure provides reliable sealing, wear resistance and long service life during reciprocating motion. OK seals are widely used in construction machinery, industrial equipment and hydraulic systems.

OK Piston Seal

SPGC Piston Seal
SPGC Piston Seal

SPGC Piston Seal

Max pressure

35MPa

Temp range

-30℃ +200℃

Max speed

1.5m/s

SPGC Piston Seal is a compact sealing solution for hydraulic and pneumatic cylinders. Its PTFE ring and NBR energizer reduce sliding resistance and stick-slip while improving wear life. The profile fits standard O-ring grooves and saves installation space.

SPGC Piston Seal

SPGO Piston Seal
SPGO Piston Seal

SPGO Piston Seal

Max pressure

35MPa

Temp range

-30℃ +200℃

Max speed

1.5m/s

SPGO Piston Seal is a compact double acting seal for hydraulic cylinders. Its PTFE sealing ring and NBR O-ring energizer provide low friction, smooth motion and good wear resistance. It helps reduce stick-slip and delivers stable sealing in reciprocating applications.

SPGO Piston Seal

GDKK Piston Seal
GDKK Piston Seal

GDKK Piston Seal

Max pressure

45MPa

Temp range

-30℃ +200℃

Max speed

1m/s

GDKK Piston Seal combines sealing, support and guide elements in one compact assembly. Designed for double acting hydraulic cylinders, it offers stable sealing, wear resistance and reliable guidance for construction machinery and industrial hydraulic systems.

GDKK Piston Seal

GGDA Piston Seal
GGDA Piston Seal

GGDA Piston Seal

Max pressure

45MPa

Temp range

-30℃ +100℃

Max speed

1m/s

GGDA Piston Seal is a compact captive slide and O-ring seal for hydraulic cylinder pistons. Its PTFE-bronze slide ring is energized by an O-ring and supported by two L-rings, providing low friction, smooth motion, wear resistance and reliable anti-extrusion protection.

GGDA Piston Seal

GKDF Piston Seal
GKDF Piston Seal

GKDF Piston Seal

Max pressure

45MPa

Temp range

-30℃ +200℃

Max speed

1m/s

GKDF Piston Seal combines a sealing ring, elastic energizer and two guide rings in one compact assembly. It provides bidirectional sealing, stable piston guidance and wear resistance for high pressure hydraulic cylinders in construction and industrial equipment.

GKDF Piston Seal

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