ISO 9001:2015 Certified Manufacturer

Taiwan Aluminum
Die Casting Services

At JoinCast we provide high-pressure aluminum parts die casting with complete in-house manufacturing capabilities. From mold design to CNC machining and surface treatment, all under one roof.

Production

Die Casting Machines

Expertise

38+

Years Experience

Solution

1 Stop

In-House Production

Our high pressure aluminum die casting services deliver complete, vertically integrated production solutions for international brands under one roof from our ISO certified Taiwan production facilities. We can accommodate high volume 24 hour production needs from design all the way through to finishing services in a single location to provide you with efficient and cost effective die casting solutions.

We have been exporting die cast products to North American and European brands for decades and also have long customer relationships in the Japanese market.

Joincast operates 12 die casting machines ranging from 135T to 900T and 2-shift systems for efficient high-volume production.

Our Die Casting Machine Range

Machine Tonnage	135T	180T	250T	350T	420T	900T
Typical Part Size	Parts up to 150 mm	Parts up to 200 mm	Parts up to 300 mm	Parts up to 350 mm	Parts up to 400 mm	Large castings up to 700 mm
Applications	Electronics / Small Hardware	Hand Tools / Fittings	General Hardware / Tools	Marine Hardware / Industrial	Automotive / Pneumatic Tools	Heavy Equipment / Large Housings

How do I determine which die casting machine tonnage my part requires?

Machine tonnage requirements depend on your part’s projected surface area (the 2D silhouette of the part perpendicular to mold opening direction). As a rough guide, parts under 150mm typically fit our 135T-250T machines, parts 150-350mm use 250T-420T machines, and large components above 350mm require our 900T machine.

Our mold engineering team calculates precise tonnage requirements during quoting based on your CAD files and projection area.

What's the difference between ADC-12 / A383 and ADC-3 / A360 aluminum alloys, and which should I specify?

ADC-12 / A383 offers excellent castability and represents 82% of our production, ideal for pneumatic tools, agricultural machinery, and LED lighting where corrosion resistance is secondary. It is the most commonly use material for die casting.

ADC-3 / A360 provides enhanced corrosion resistance for marine components, boat hardware, and outdoor applications exposed to saltwater or harsh environments, though it costs approximately 15-20% more than ADC-12 / A383 and has lower fluidity than ADC-12 / A383.

What's your minimum order quantity for die cast aluminum parts?

MOQ depends on part complexity and size. Simple single-cavity parts from our 135T-420T machines have 2,000-piece minimums, while complex multi-cavity molds or large castings from our 900T machine require 1,000 piece minimums to justify tooling investment.

How do you control porosity in critical structural areas of die castings?

Our mold flow simulation identifies potential porosity locations during mold design, allowing strategic gate placement and venting to direct porosity away from critical areas. Vacuum-assisted casting and optimized injection parameters minimize gas entrapment.

For medical equipment components or pneumatic tool pressure chambers requiring zero porosity, we specify proof pressure testing as additional verification.

What wall thickness limitations should I design for in aluminum die castings?

Average wall thickness is typically 2.5-4.5mm depending on part size and flow length. Walls below 1.5mm risk incomplete fill or weak sections.

Maximum wall thickness should generally not exceed 15mm due to shrinkage and porosity concerns in heavy sections. Our mold engineering team provides DFM feedback during quoting if your design includes problematic wall thickness variations.

What surface finish can I expect directly from the die casting process?

As-cast aluminum surfaces typically achieve Ra 3.2-6.3 μm depending on mold condition and part geometry. This requires polishing or shot blasting before surface coating for most applications. Cosmetic surfaces visible to end users need secondary finishing operations.

What quality checks happen during die casting before parts move to CNC machining?

Operators perform visual inspection for surface defects, flash, and incomplete fill on every casting. Dimensional spot checks using go/no-go gauges verify critical features at defined intervals.

Defective castings are scrapped immediately rather than proceeding to expensive CNC machining operations.

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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