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Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.

Hydraulic seals

As a leading hydraulic seal manufacturer, we specialize in crafting high-performance hydraulic seals and hydraulic oil seals designed specifically for the hydraulic systems of engineering machinery and heavy equipment. Our seals utilize premium materials such as PTFE, PU, NBR, and FKM, boasting exceptional pressure resistance and wear durability. These seals can withstand up to 40MPa of working pressure and piston speeds of 1m/s, while operating efficiently within a temperature range of -20°C to 150°C, ensuring the hydraulic system runs smoothly and efficiently. They are widely applicable in hydraulic cylinders, pneumatic actuators, and other equipment.

 

Notably, our PTFE composite hydraulic seals, designed for heavy-duty applications, exhibit a 30% increase in wear resistance and can endure pressures up to 50MPa. They are ideally suited for hydraulic cylinder seals in excavators, injection molding machines, and other heavy equipment, significantly reducing maintenance requirements and lowering operational costs.

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MPS Hole-Shaft Seal: X-Ring Enhanced for Hydraulic/Pneumatic Use
This X-ring-enhanced MPS seal offers versatile hole-shaft sealing: it works for low-to-high pressure, minimizes wear, and adapts to common industrial pneumatic/hydraulic applications (speed ≤0.5m/s).
J-Style Skeleton-Free Polyurethane Dust Seal
The Skeletonless PU Wiper Seal Type J is a high-performance sealing component crafted from polyurethane, designed to block dust, particles, and other foreign contaminants from entering hydraulic cylinders, effectively protecting reciprocating piston rods and extending equipment service life.
High-Pressure Resistant OUY Hydraulic Seal – Dustproof & Piston Sealing Solution
OUY Hydraulic Seal is a high-quality oil seal for heavy industry and machinery, serving as a core component for excavators with excellent sealing and durability. It offers wear/corrosion resistance, high-pressure adaptability, and multi-scenario sealing (piston/dust-proof). It reliably supports long-term operation of construction excavators and general machinery hydraulic systems.
IDI-Style PU Piston Rod Seal – Ideal for Hydraulic Cylinders in Heavy Machinery
Designed specifically for hydraulic cylinders, the IDI-style piston rod seal made of polyurethane delivers robust sealing performance—its U-shaped structure with dual-lip design forms a strong barrier against leaks, while compatibility with backup rings prevents extrusion, making it suitable for heavy-duty scenarios.
Durable Polyurethane (PU) Rotary Seal ROI – Anti-Leakage & Wear-Resistant
Engineered for automotive, manufacturing, and heavy-duty industrial machinery, this Rotary Seal ROI features a low friction coefficient and durable PU construction, effectively preventing fluid or gas leakage in high-pressure rotating applications while boasting an extended service life.
HBY Combined Buffer Polyurethane Seal Ring for Construction Machinery
The HBY combined buffer polyurethane seal ring is a high-performance sealing solution tailored for construction machinery and hydraulic equipment, integrating a polyurethane seal ring with POM/PA backup rings to deliver exceptional pressure resistance (up to 50MPa) and wear resistance.
BRONZE FILLED PTFE-Sealed GSZ Composite Dust Seal
The GSZ Combined Dust Seal features a high-performance BRONZE FILLED PTFE sealing ring, delivering exceptional wear resistance, thermal conductivity, and dust-scraping efficiency—ideal for hydraulic, pneumatic systems, and servo equipment operating in severe dust or low-temperature environments.
GSJ-W Heavy-Duty Piston Rod Steck Seal
Designed for high-pressure, heavy-load reciprocating hydraulic systems (e.g., bulldozers, forging presses), the GSJ-W Steck seal combines a durable bronze-filled PTFE sealing element with NBR/FKM/PU elastomers, ensuring low friction, stable sealing, and long service life.
GSF-W Series Heavy-Duty Bore Glyd Ring for High-Pressure Hydraulic Systems
The heavy-duty bore Glyd Ring GSF-W is a high-performance hydraulic piston seal, featuring a filled PTFE main ring paired with optional NBR, FKM, or PU O-rings to deliver excellent dynamic/static sealing, low friction, and resistance to high pressure, making it ideal for heavy machinery like injection molding machines and construction equipment.
GSD-W Heavy-Duty Reverse Step Seal
Designed to withstand high-impact hydraulic conditions, the GSD-W Heavy-Duty Reverse Step Seal features NBR/PU sealing elements that provide reliable wear compensation, making it a durable choice for hydraulic pistons, cylinders, and critical components in industrial and construction equipment.
GSD Type Piston Seal for Hydraulic Systems
The GSD bore seal is a high-performance double-acting sealing element specifically designed for reciprocating pistons in hydraulic systems, featuring a core structure of bronze-filled PTFE (F-PTFE) ring paired with an NBR or FKM elastomer O-ring.
Forever Seals DAQ2 Low - Friction Hydraulic Seal - Reliable Leakage Control
Forever Seals DAQ2 hydraulic seals integrate dual wear rings and a star - shaped elastomer. They ensure bidirectional sealing, handle 40MPa pressure, and resist - 45℃~+200℃ temps for stable hydraulic system ops.
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