Precision CNC machining and manual finishing of corrosion-resistant aluminum die cast marine outboard motor components at JoinCast’s Taiwan facility.

ISO Certified Manufacturer

Marine Component
Die Casting

Corrosion-resistant aluminum die castings for marine applications. We have decades of experience working with global brands on consumer and industrial application marine components.

At Joincast we are specialists in the precision die casting of ADC-3 / A360 marine components for a range of applications and global brands. Common applications include aluminum propellers and crankcases as well as various engine components for both commercial and recreational applications. We are able to handle castings up to 3Kg to accommodate customers’ larger die-cast component requirements.

Your OEM parts go from die casting through CNC machining to surface treatment, all within our Taiwan production facility. Surface treatment performance is verified through salt spray testing and rigorous quality checks before your components are shipped. Our quality team conducts ASTM B117 testing to validate corrosion resistance.

ISO-Certified Quality & Advanced Inspection Component Inspection

JoinCast strictly adheres to the ISO 9001:2015 quality management system. We have invested in a dedicated 10 person QC team for stringent quality control from incoming material to right through to final shipment.

We use Keyence 3D Scanning Systems for dimensional verification and 3D CMMs for micron-level dimensional accuracy verification

Keyence 3D Scanning
Mitutoyo 3D CMM Verification
Dedicated 10 Member QC Team

What aluminum alloys does Joincast use for marine components?

We work primarily with ADC-3 and A360 aluminum alloys for marine applications. Both are well-suited to saltwater environments, offering strong corrosion resistance alongside good castability. ADC-12 and A383 are available for other component types across our production range. When you contact us with your requirements, our engineers will confirm the most appropriate alloy for your specific application.

Die casting also eliminates secondary operations for features like boss holes and clip mounts, reducing your total component cost at production volumes.

What types of marine components can Joincast produce?

Common applications include aluminum crankcases, and a range of engine components for both commercial and recreational use. We have decades of experience working with global marine brands across consumer and industrial applications, so the range of parts we can accommodate is broad. If you have a specific component in mind, get in touch and we’ll advise on feasibility.

Is there a maximum casting size or weight you can handle?

We can handle castings up to 3 kg, which covers the majority of marine component requirements, including larger die-cast parts. Our machines range from 135T to 900T, giving us the flexibility to work across a wide range of part geometries and sizes. For very large or unusual requirements, it’s worth contacting us directly so we can assess your project.

Can Joincast manage the full production process, or do I need to source finishing and machining separately?

Everything happens under one roof. Your parts move from die casting through CNC machining to surface treatment without leaving our Taiwan facility. This single-supplier approach is one of the main reasons customers come to us as it removes the coordination burden and gives you a single point of contact for quality and lead times. We operate 24 hours a day across three production sites covering 9,900 m².

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From Design to Delivery: Full-Service Die Casting

At Joincast we keep every critical process in-house at Joincast, operating from a 9,900 m² facility to deliver dependable lead times and consistent quality. Across three production sites, we run die casting machines (135T–900T), CNC machining centers with automation, plus fully integrated surface treatment lines.

From small precision parts to castings up to 3 kg, we process ADC-12 / A383 and ADC-3 / A360 aluminum alloys in a 24-hour, single-supplier operation.