Cold-Chamber Die Casting

Cold Chamber Die Casting

The Cold-Chamber Die Casting is perfect for metals like aluminum alloys, zinc alloys, brass, and copper, which require super high temperatures to melt. Unlike hot chamber die casting, cold chamber keeps the molten metal separate from the machine. Think of it like having a pot of melted metal next to an injection machine. In a cold chamber, we scoop the metal from the pot and pour it into a special chamber in the machine. Then, a powerful plunger shoves the molten metal into the mold under high pressure, ensuring it fills every tiny crevice. This separation is why it’s called “cold chamber.”

Partner DSW

At DSW, we’ve been pushing the boundaries of cold chamber die casting for over 20 years. We leverage cutting-edge technology and a team of experienced professionals to deliver exceptional results. Whether you need a single prototype or high-volume production runs, DSW is your trusted partner.

Ready to discuss your project?
Contact our team today for a free consultation and quote.
Request a quote online to get started quickly.
We look forward to exceeding your expectations for cold chamber die casting excellence.

The Cold-Chamber Die Casting Process: A Step-by-Step Look

Cold-chamber die casting is a well-suited method for producing parts from metals with high melting points, such as aluminum alloys, zinc alloys, brass, and copper. Unlike hot chamber die casting, this process keeps the molten metal separate from the machine, eliminating potential corrosion issues with its injector components.

Here’s a breakdown of the key steps involved:

Melting: The metal is first melted in a high-temperature furnace capable of reaching extremely high temperatures (depending on the chosen metal).
Transfer & Injection: Once molten, the metal is carefully ladled from the furnace using a specialized tool called a ladle. This molten metal is then poured into a temporary holding chamber within the machine known as the shot chamber. A powerful plunger then forces the molten metal from the shot chamber into the mold cavity at high pressure, typically ranging from 2,000 to 20,000 psi. This high pressure ensures the molten metal fills every intricate detail of the mold.
Cooling & Solidification: The metal rapidly cools and solidifies within the mold, taking the desired shape of the final part. The mold itself is designed specifically to create the required component geometry.
This process results in several advantages, including the production of denser, stronger metal parts and the ability to create thin-walled designs.

Cold Chamber vs. Hot Chamber Die Casting: The Key Distinction

The separation between the molten metal and the casting machine is the crucial difference between cold chamber and hot chamber die casting.

Cold Chamber Die Casting:
Metal is melted in a separate furnace reaching high temperatures.
The molten metal is then transported and poured into the machine’s chamber using a ladle.
A high-pressure plunger forces the metal into the mold cavity.

Advantages of Cold Chamber:
This process is ideal for metals with high melting points like aluminum alloys and brass.
Separating the molten metal from the machine reduces potential corrosion issues within the machine itself.
Cold chamber die casting often results in denser metal castings due to the higher pressure used.

Hot Chamber Die Casting (in contrast):
Here, the molten metal is kept within a dedicated pot integrated into the machine itself.
This method is typically used for lower melting point metals like zinc and magnesium alloys.

Our Cold Chamber Die Casting Machines

Our Cold Chamber Die Casting Machines

At DSW, we only use the latest and most advanced die casting machines to ensure the highest quality parts. Here are some of the models we have available:

Assembly and Installation Services

Need help with assembly or installation? We can work with you to find solutions for tasks like:

Installing pins or threaded inserts
Machining external threads
Pre-casting holes for internal threads

DSW Cold Chamber Die Casting

Every component we manufacture is custom-designed and built to your exact specifications. We can handle production volumes ranging from a few hundred to hundreds of thousands of parts.

Ready to get started? Contact us today at +86-574-27861829 or request a quote online!