Your Best Die Casting Manufacturer in China


Plus Proto offers the whole range of pressure die casting services, including die-cast mold tool making, die casting, machining, polishing, and plating, etc.


Our advanced equipment and inspection facilities ensure the quality of raw materials and your finished parts. Also, Plus Proto experienced team can give the best solutions whether your die casting case is small or mass production. Meanwhile, there are more than 10+ metal materials in stock at Plus Porto, we can easily meet all kinds of your request applications.


Let’s help you make your idea into reality from your drawings now.

Die Casting
Rapid Prototyping Manufacturer die casting
die casting

What Is Die Casting

Die casting is one of the metal casting processes, which is characterized by applying high pressure to the molten metal using the cavity of the mold. Molds are usually made of higher-strength alloys, and this process is somewhat similar to injection molding. Most die castings are iron-free, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. Depending on the type of die casting, you need to use a cold chamber machine or a hot chamber machine.


So the Die casting machines can be divided into two different types, hot chamber die casting machines and cold chamber die casting machines. The difference lies in how much force they can withstand. The typical pressure range is between 400 and 4000 tons.


Hot Chamber Die Casting


Hot chamber die casting, sometimes called gooseneck die casting, has molten liquid and semi-liquid metal in its metal pool, which fills the mold under pressure. The hot chamber die casting machines are generally used for alloys of zinc, tin, and lead. Moreover, hot chamber die casting is difficult to use for die-casting large castings, usually, this process is die-casting small castings.


Cold chamber die casting


Cold-chamber die-casting can be used when die-casting metals cannot be used in the hot-chamber die-casting process, including aluminum, magnesium, copper, and zinc alloys with high aluminum content. Cold chamber die-casting machines are divided into vertical and horizontal types. Vertical die-casting machines are usually small machines, while horizontal die-casting machines have various models.

Die Casting Materials


  • Aluminum Alloy: Aluminum 360, Aluminum 380, A413, B390, C443,518, or another custom ;
  • Magnesium Alloy: AZ91D, AM60B, SA41B, or another custom;
  • Zinc Alloy:Zamak-2,Zamak-3,Zamak-5,Zamak-7, ZA-12,ZA-27 or another custom ;
  • Steel: Steel 1018 (low carbon)

Die Casting Finishes Options


  • As Cast
  • Anodized (Type ll Or Type III)
  • Powder Coating
  • Chemical Film
  • Wet Painting
  • Silver Plating
  • Gold Plating
  • Or Other Custom

If you can NOT find your custom materials above, please contact us freely.

  • We can start from 10 pieces;
  • Low-volume production can help you save investment;
  • The tolerance usually as per customer’s 2D drawings;
  • If NO 2D drawings from clients as per ISO 2768-M;
  • Usually, the lead time is 5- 7 working days. It depends on the specific cases.
  • We have 2 shifts works which can help you accelerate projects if needed.
  • Plus Proto can accommodate any standard thread size;
  • We can also machine custom threads;
  • Sharp edges are deburred by default;
  • Also can be made as customized.

Benefits of Cooperation with Plus Proto


  • Rich Experience: Our core team has more than 20 years of metal casting industry experience. We can give professional guidance to you from prototypes to mass production.



  • One-Stop Service: With advanced Hot Chamber Casting and cold Chamber  Casting machines, we can give clients the best custom solutions.



  • Quality Worry-Free: We cooperate with Fortune 500 companies in the world, such as  BMW, TESLA, HP, Samsung, The quality is recognized by them. Our Die Casting parts are used for many industries like aerospace, automotive, connector housings and plumbing fixtures, etc.

Let’s Get Started Today

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