Qingdao Xindingtong New Material Technology Co., Ltd. - SYNTECH

Qingdao Xindingtong New Material Technology Co., Ltd. — operating under the Xindingtong brand — is a specialist Chinese manufacturer of automotive rubber sealing products and gasket assemblies, a dedicated production expansion of Qingdao Kaitong Seals Co., Ltd., a sealing specialist with roots to 2000. Holding IATF 16949 certification since 2021 and operating a 40,000 m² facility with over 30 engineers, Xindingtong's annual production capacity exceeds 150 million units across O-rings, oil pan gaskets, cylinder cover gaskets, valve stem seals, and rear suspension cushions spanning automotive, commercial vehicle, and industrial machinery platforms.

Engine sealing components are a structurally consistent, wear-driven replacement category on diesel bus engines operating in Indonesia's high-temperature, high-humidity tropical environment, where thermal cycling accelerates rubber compound degradation beyond rates seen in temperate climates. Xindingtong's 150M+ unit annual capacity and IATF 16949 certification make it a credible volume supplier for Indonesian bus workshop and PO fleet maintenance sealing requirements.

Complimentary Listing
SEANOHA Bus Parts Catalog
A. Engine & Powertrain — Engine Gasket Set (Full)

🔬 IATF 16949 certified (2021) | 40,000 m² self-owned facility | 150M+ units annual capacity | Qingdao, Shandong

Products:

O-Ring Series — NBR, EPDM, FKM/Viton, and silicone compound O-rings for bus engine, cooling, and hydraulic brake system sealing.

Oil Pan Gasket & Cylinder Cover Gasket — sump and valve train cover sealing components for bus diesel engine oil systems.

Valve Stem Seal Series — precision rubber valve stem seals controlling oil consumption on high-mileage bus diesel engines.

Bonded Seals & Rear Suspension Cushions — drain plug sealing washers and rubber-metal bonded suspension isolation components for bus rear axle mounting points.

🌡️ Rubber compound formulations validated for high-temperature, high-humidity tropical operating conditions

🔬 IATF 16949 certified | National Key New Product & Municipal High-Tech Enterprise recognition | Active R&D collaboration with major scientific research institutions

🤝 Matched to the sourcing needs of Indonesian bus workshop supply chains and PO fleet maintenance teams procuring engine sealing components, O-rings, and gasket sets for diesel bus overhaul programs across Java, Sumatra, Kalimantan, and Sulawesi.