Capabilities
Aluminum & Zinc Die Casting in Shenzhen, China
Fudakin is an OEM/ODM manufacturer, in business since 1996, that runs aluminum and zinc die casting in Shenzhen, China. Die casting runs in our plant and at a trusted partner shop nearby. Tight surfaces are CNC finished, then coated and assembled. You pay for the die up front and you own it.
Get a Quoteor email tiger@fudakint.comWhat Fudakin runs
Fudakin runs aluminum and zinc die casting in Shenzhen, in our plant and at a trusted partner shop nearby. Die casting does not run in Thailand: see what our Bangkok facility runs. A die-cast part comes off the press near its final shape, then moves to CNC finishing for any tight-tolerance surface, threaded hole, or mating feature that casting alone can't hit, checked against the ZEISS CMM lab we run in-house (see tolerance and inspection). From there it goes into powder coating, painting, or anodizing and plating, and on into final assembly.
We review alloy choice and die design together during DFM, before any tooling is cut: aluminum for lighter, stronger, heat-resistant parts, zinc for finer detail and thinner walls. That's where porosity and shrinkage problems get engineered out, not discovered on the floor after the tool is already built.
- 01Alloy enters die
- 02Metal fills cavity
- 03Part cools and releases
Cast components often work alongside stamped metalbrackets or a laser-cut tube frame in the same assembly (a die-cast housing bolted to a stamped bracket, for example). Because Fudakin handles the casting, machining, and finishing for the program, that fit gets checked instead of guessed at across vendors.
What to get right
A die-cast part looks like a simple metal shape once it's finished. What's invisible is whether the metal filled the die cleanly, cooled evenly, and released without trapping defects that only show up under load or after the part ships.
Porosity
Trapped air or gas inside a casting forms voids that don't always show on the surface. A part can look perfect and still fail a pressure test, crack under load, or leak where it's supposed to seal. Preventing it comes down to gate and vent design, controlled metal temperature, and a die engineered for how the specific alloy fills, decided before the tool is cut, not fixed after parts start failing.
Shrinkage and dimensional control
Metal contracts as it cools from molten to solid, and a die has to be cut oversized by the right amount to land on final dimensions. Get that wrong, or ignore how wall thickness changes cooling rate across the part, and the casting comes out warped or off-print in ways that only show up after the tool is already built.
FAQ
Frequently asked questions
What's the difference between aluminum and zinc die casting?
Aluminum die casting produces lighter, stronger parts with good heat resistance, and it's the common choice for structural housings and heat-sink-style components. Zinc casts at a lower temperature, holds finer detail and thinner walls, and machines and plates well: a common choice for smaller, more intricate parts. Which one fits depends on the part's strength, weight, and finish requirements, not on cost alone.
What does "near-net-shape" actually mean for a die-cast part?
It means the part comes out of the die very close to its final geometry, needing little or no machining to reach finished dimensions, unlike machining a part from solid stock, where most of the material is cut away. Near-net-shape is what makes die casting economical at volume: the die does most of the shaping work in one shot.
Where does die casting actually go wrong?
Porosity is the most common failure: trapped air or gas forms voids inside the casting that don't show up on the surface but weaken the part or leak under pressure. It comes from poor gate and vent design, inconsistent metal temperature, or a die that hasn't been engineered for the way the specific alloy fills and cools. Preventing it is a tooling and process discipline problem, not something fixed after the fact.
Can a die-cast part be machined and finished after casting?
Yes, die casting gets a part close to final shape, and any tight-tolerance surfaces, threaded holes, or mating features are CNC-finished afterward. From there the part can move into painting, powder coating, or plating with Fudakin, so a cast housing doesn't need a second vendor to become a finished component.
Where does Fudakin run die casting?
In Shenzhen, China, in our plant and at a trusted partner shop nearby. Die casting does not run in Thailand. Our Bangkok facility runs injection molding, storage, and assembly.
Who owns the die?
You do. Tooling is paid 100% up front, and the customer owns the molds and dies.
Is die casting or CNC machining the right call for a metal housing?
Die casting wins at volume, once tooling is paid for, because near-net-shape parts come off the die fast and consistent. CNC machining wins for low volume or when a design changes often, since it needs no hard tooling at all. Many programs use both: die cast for the bulk shape, CNC for the surfaces that need it.
Talk to us about a metal housing
Send the drawing, alloy preference, and volume, and we'll tell you honestly whether die casting or CNC fits your part.