PR-07 · Process hubs
Die casting is like injection molding, but for metal. Molten zinc or aluminum is forced into a steel mold (called a die) to make strong metal parts with fine detail, like housings and heat sinks. The die is expensive, so it suits larger quantities. For a handful of metal parts, CNC machining is usually cheaper.
Foreign-owned, foreign-managed factory (Sofeast group) with English-speaking staff in every department
Dongguan · Chang'anDMG 5-axis and rows of 3-axis CNC in a 5,000 m² Chang'an base
Dongguan · Chang'anProprietary zinc multi-slide die casting, invented in 1936
Dongguan · DalangSino-British founders (CEO Vader Yu and James Murphy) and English-speaking project managers
Shenzhen · Bao'anEnglish-speaking NPI partner for startups, builds from 5 units
Shenzhen · LonghuaInstant online quotes with automated DFM feedback for mechanical parts
Shenzhen · Bao'anIn-house tool shop next to the casting floor
Dongguan · Dongguan (other town)New-energy prototypes: battery packs, charger housings, inverters, cooling modules
Shenzhen · GuangmingGet 3 quotes
Describe the part once. We send it to up to 3 shops that fit, and they quote you directly.
4 guides
Everything we've written about Die casting, starting with the basics.
Start hereHow die casting works, which metals it uses, what it's good and bad at, what drives the cost, and how to get die-cast parts made in Shenzhen and Dongguan. Written for first-timers.
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01Choosing · 7 minWhen should a metal part be CNC machined, and when is it worth paying for a die-casting tool? A plain-English comparison of cost, quantity, quality and finish, with a simple break-even method.
02Choosing · 7 minShould your die-cast part be zinc or aluminum? Weight, detail, finish, tooling life and cost compared in plain words, with a simple way to decide.
03Choosing · 8 minThree common ways to finish a part, compared in plain words. What each one is, which materials it works on, how it looks and wears, and how to choose for your product.
CNC for low volume; die casting once volumes justify the tooling.
Cast aluminum anodizes poorly; powder coating or painting is more common.