K-STONE – Parking Air Conditioner Supplier in China

OEM Valve Cover Manufacturer

We are a professional OEM valve cover manufacturer.
Nuestra tapas de válvulas del motor are certified to IATF 16949,ISO 9001,and CE standards.We offer high-quality plastic and aluminum engine components.We have a decade of experience in manufacturing and international trade, and we utilize state-of-the-art manufacturing equipment.Please feel free to contact us for your custom products.

OEM Valve Cover

Nuestra capacidad

High-Precision Die Casting

High-Precision Die Casting

We utilize advanced high-pressure aluminum and magnesium die casting.This ensures exceptional dimensional accuracy,high structural density,and lightweight components.Our process effectively eliminates internal porosity to maximize long-term durability.

Advanced CNC Machining

Advanced CNC Machining

Our multi-axis CNC machining centers deliver tight tolerances for critical sealing surfaces.We precisely drill bolt holes and mill complex geometries.This guarantees perfect alignment and zero-leakage integration with engine cylinders.

Automated Leak Testing

Automated
Pruebas de estanqueidad

Every valve cover undergoes rigorous high-pressure air and helium bubble testing.Automated systems instantly detect micro-cracks or casting flaws.This mandatory quality control prevents oil leaks before shipping to assembly lines.

Premium Surface Finishing

Premium Surface Finishing

We offer customized surface treatments including powder coating,shot blasting,and anodizing.These processes enhance corrosion resistance,isolate engine heat,and deliver a sleek,professional aesthetic for automotive brands.

¿Cómo hacer un pedido?

As a responsible OEM valve cover manufacturer,based on our years of experience,you should provide us with:
Por favor, proporcione el VIN (número de identificación del vehículo), el modelo de motor, el material de la tapa de la válvula, la marca y el modelo del vehículo, el año del modelo y las especificaciones detalladas del vehículo para garantizar la compatibilidad. Cuanta más información nos proporcione, mejor podremos ayudarle a encontrar el producto adecuado. Contacto en cualquier momento o envíe un correo electrónico a mailto:[email protected].We’d be happy to assist you.

Calidad y validación

Prueba
Calidad y validación
To manufacture high-quality OEM valve covers,we guarantee product excellence through advanced raw material inspection,high-precision automated CNC machining,100% leak detection testing,and rigorous coordinate measuring machine (CMM) dimensional verification.
Prueba
Helium Leak Testing
(ISO 15001)

We conduct high-sensitivity helium vacuum leak testing to detect micro-porosity.This ensures 100% sealing integrity under extreme engine crankcase pressures, completely preventing oil mist emissions.

Prueba
Thermal Shock Testing
(ASTM D1125)

Valve covers undergo rapid temperature cycling from -40°C to 150°C.This validates material stability,prevents warping,and ensures the component withstands harsh under-hood environmental thermal stresses.

Calidad y validación

For over a decade,we have been engaged in the valve cover wholesale business,continuously perfecting our strict four-stage quality assurance system.To comply with the APQP process,we ensure product quality through comprehensive Design Failure Mode and Effects Analysis (DFMEA),robust Process Capability Studies (Cpk),synchronized tooling validation,and Production Part Approval Process (PPAP) submission.

Calidad y validación

Controlar
Statistical Process Control(IATF 16949)

We implement real-time SPC charts on CNC machining lines to monitor critical dimensions.This maintains a Cpk greater than 1.67,ensuring absolute consistency across mass production batches.

Controlar
Molten Metal Quality Control (ASTM E1251)

We utilize optical emission spectrometry to analyze aluminum chemical composition before casting.This guarantees optimal tensile strength and density,strictly meeting international automotive metallurgical standards.

Envíenos un mensaje

Póngase en contacto

Póngase en contacto con nosotros

Cuéntanos tu idea perfecta, o simplemente salúdanos. Estamos aquí para crear la idea perfecta, tanto si tiene una gran idea como si necesita inspiración para un proyecto. Desde la concepción hasta la creación, permítanos inspirarle.

+86 138 1973 9327
Llámanos
Oficina

Habitación 901, Jinri Jiayuan,
Sur Tangjiaqiao Rd,
Wenzhou, 325000 China
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