FAQs

We are a direct oil seal manufacturer, not a trading company. Our operations include in-house rubber compounding, molding, finishing, and quality control, allowing us to maintain consistency and traceability across large production volumes.

Yes. Taiwan is widely recognized as a hub for high-quality oil seal manufacturing, particularly for automotive and industrial applications.
Our company introduced modern oil seal manufacturing technology to Taiwan in 1963, and Taiwan remains a core part of our technical and manufacturing foundation.

In addition to Taiwan, we also operate manufacturing facilities in mainland China, which were established in the 1990s and have since been expanded and upgraded to support long-term, large-scale production programs. These facilities primarily support customers with manufacturing operations in mainland China, including both international manufacturers with local production footprints and domestic customers.

Yes. We have supplied original equipment (OE) oil seals continuously since the 1970s, across multiple vehicle and equipment platforms.
This includes long-term OE supply programs that require regular audits, stable processes, and consistent quality over decades.

 Our manufacturing facilities are certified to:

• ISO 9001
  
• IATF 16949 (formerly ISO/TS 16949)
  

We manufacture oil seals for both rotating (rotary) and reciprocating shaft applications, primarily for automotive, powersports, and long-term industrial programs.

Key oil seal applications include:

• Rotary shaft oil seals for engines, transmissions, drivetrains, and industrial machinery
  
• Wheel hub and axle seals (also commonly referred to as grease seals) used in automotive wheel and bearing assemblies
  
• Power steering seals for hydraulic steering systems
  
• Reciprocating seals used in applications such as shock absorbers, dampers, and gas springs
  
  

Application suitability is evaluated based on operating conditions and expected production volumes, rather than one-off use.

Yes. In addition to automotive and mobility applications, we manufacture large-diameter oil seals for heavy industrial equipment, including seals produced by compression molding up to approximately 2 meters in diameter.

This capability exists to support long-term industrial programs where large rotating or reciprocating components are involved. As with all our production, these applications are evaluated based on technical requirements and sustained production needs, rather than one-off manufacturing.

 Yes. Many of our oil seals are designed to meet or exceed OEM functional requirements, making them suitable for aftermarket replacement programs, including legacy or discontinued OEM parts where long-term supply continuity is required.

Yes — with a clear path to production.
We support prototyping and co-development (ODM) for oil seal applications that are intended for series production.

Our R&D teams work with customers to:

• Define performance requirements
  
• Optimize designs for manufacturability
  
• Ensure scalability for mass production
  
  

We do not position prototyping as a standalone service without production intent.

Yes. In-house rubber compounding is a core capability, particularly for OE and long-term supply programs.
This allows tighter control over material performance, consistency, and lifecycle behavior—especially important in demanding oil seal applications.

 Common causes of premature oil seal failure include:

• Incorrect material selection
  
• Surface condition issues on mating components
  
• Dimensional variation across large production volumes
  
• Using generic seals in demanding applications

In high-volume programs, even small inconsistencies can result in significant downstream cost.