NIYOK SEALING PARTS CO., LTD. - NIYOK has 40 years of professional experience in manufacturing seals.

Transportation Industry | NIYOK SEALING PARTS CO., LTD.

NIYOK Transportation Industry Introduction. NIYOK combines expert sealing engineering, 40 years of manufacturing experience, and advanced production equipment to deliver comprehensive sealing solutions for customers worldwide. With over 40 years of sealing component manufacturing experience, NIYOK holds ISO 9001 and IATF 16949 certifications, backed by a complete quality traceability system that ensures consistent delivery across every batch. From 2026, NIYOK is formally expanding into the electric vehicle (EV) and semiconductor sectors — bringing in-house engineering development capabilities that support customized sealing solutions from design through to mass production. We are committed to being your trusted precision sealing partner. Inquiries are welcome.

Transportation Industry

Sealing Applications in the Transportation Industry

Sealing Applications in the Transportation Industry

Transportation Industry

Transportation Industry

In the transportation industry, sealing components are directly tied to vehicle safety, fuel efficiency, and service life. Whether in the drivetrain of commercial vehicles, the braking mechanisms of rail transit, or the hydraulic systems of port machinery, NIYOK's sealing solutions offer material selection tailored for high-vibration, high-temperature, and multi-media environments — ensuring reliable operation across varied road conditions and climates.

NIYOK Protects Every Sealing Point in Your Transportation Equipment.

NIYOK's sealing solutions serve critical applications across a wide range of transportation vehicles and equipment. From axle oil seals in commercial trucks and hydraulic cylinder seals in port cranes, to pneumatic line seals in aerospace ground support equipment, NIYOK provides multi-material, multi-form sealing configurations that ensure sealing integrity under high load and extended operation. Our engineering and QA team, backed by IATF 16949 automotive quality management certification, provides complete traceable batch records to reduce failure rates and maintenance costs.

Key Features:
．Resistance to high pressure and high vibration environments
．Fuel, hydraulic oil, and lubricant resistance (FKM, NBR, HNBR)
．Wide operating temperature range (−40°C to +150°C)
．IATF 16949 automotive quality management compliance
．Traceable batch quality records

Transportation Applications:
．Commercial vehicle drivetrain and axle oil seals
．Port crane hydraulic cylinder seals
．Rail vehicle pneumatic line seals
．Aerospace ground support equipment pneumatic and hydraulic systems
．Marine auxiliary equipment pipeline seals

Not sure which seal is right for you? Tell us your requirements — NIYOK will take care of the rest. Contact Us
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NIYOK Transportation Industry Introduction

Based in Taiwan, NIYOK SEALING PARTS CO., LTD. is a seal and rubber products supplier and manufacturer in the Seal Industry.

With over 40 years of sealing component manufacturing experience, NIYOK holds ISO 9001 and IATF 16949 certifications, backed by a complete quality traceability system that ensures consistent delivery across every batch. From 2026, NIYOK is formally expanding into the electric vehicle (EV) and semiconductor sectors — bringing in-house engineering development capabilities that support customized sealing solutions from design through to mass production. We are committed to being your trusted precision sealing partner. Inquiries are welcome. From oil seals, O-rings, to gaskets, and customized products, application industries include manufacturing, chemical processing, defense, water treatment and filtration, hydraulics, fluid power, heavy trucks, automobiles, aerospace, oil and gas, medical and For life sciences, food and beverages, a complete product line is available for customer needs and specifications.

NIYOK has been offering customers high-quality Oil Seal, Seal, Rubber Parts, Gasket, O-Ring, Custom-slit-valve since 1983, both with advanced technology and 40 years of experience, NIYOK ensures each customer's demands are met.