OEM Stainless Steel Casting Exhaust Manifold

This exhaust manifold is a critical component in automotive exhaust systems, engineered to collect exhaust gases from multiple engine cylinders and channel them into the exhaust pipe. It is precision-manufactured to match the exact specifications, performance requirements, and fitment of original vehicle designs, ensuring seamless integration with specific engine models.


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Product Description

Product Introduction

It's a kind of exhaust manifold used in automotive industry, which is made from stainless steel material by casting process. The stainless steel construction and casting processes ensure it thrives in the most demanding operating environments, aligning with the strict quality standards of OEM automotive production.

Material and process

Stainless steel is the material of choice for OEM exhaust manifolds. It resists rust and degradation from moisture, exhaust byproducts, and environmental elements, extending service life. The stainless steel can maintain mechanical integrity under thermal stress and vibration, reducing the risk of cracks or leaks.

The sample sent from our customer is the assembly bracket of the manifold.

the bracket of the manifold from customer top view

Here is their assembly picture:

welded assembly picture

The picture from our customer shows the exhaust manifold which is connected by welding process, but the whole exhaust manifold made by casting process is what we need to work.

There is 2 ports on one flange and the other flange has 3 ports, so that it can connected to the bracket. After analyzing and measuring, the 3D drawings is designed accroding to the requirement of our customer. It's really challenging to work.

Here are the 3D drawings:

the manifold 3D drawings 1 the manifold 3D drawings 2

Then we move up to 3D print the manifold when the 3D drawings get approved.

Using 3D printing technology to create prototypes is a very good choice, as it can avoid the problems that arise from directly making mold and samples.

3d print prototype

There are some details need to adjust when the 3D printed prototype comes out, then revised the drawings and continued with 3D printing. We repeat this several times in a row and finally succeeded.

Here is the finially version:

the precision exhaust manifold

This process has gone through stages such as design prototyping, drawing creation, revisions, and final confirmation, ensuring that every detail aligns with functional requirements and manufacturing feasibility.

After multiple iterations, the finalized drawings and prototypes undergo rigorous approval. This includes verifying compliance with industry standards and customer requirements, ensuring the design is both manufacturable and fit for its intended application. Only then does the process move to mold fabrication and full-scale production.

Ningbo Joyo Metal Products Co., Ltd. strength lies in the seamless execution of the entire pre-production cycle, from design prototyping to final confirmation, ensuring that every stainless steel investment casting part meets the highest standards of precision and manufacturability.