High Pressure Die Casting (HPDC) is when molten metal is forced at high speed and high pressure into the cavity of a closed die. The die is locked tightly in place by powerful closing forces applied by the horizontal HPDC machine used. Once the metal has solidified, the die is released, and the casting is ejected.
Meet our cold chamber HPDC machines Why are closing forces so important?
The forces applied to the die are critical to achieving a tight seal and casting precision. The bigger the part, the greater the pressure needed to guarantee accurate die closure.
With large ‘single piece’ castings increasingly popular - especially in automotive - HPDC machines able to deliver massive closing forces are often preferable.
Our Giant HPDC machines deliver closing forces up to 11,000 tonnes!
What are the main advantages of the high pressure die casting process?
HPDC machines are great for producing very large light alloy parts, in high volumes and great speeds.
Especially where high precision, superior surface finish, excellent uniformity and optimum mechanical properties are all essential ingredients
Do I need a Toggle Free HPDC machine?
That depends. As the name suggests, Toggle Free HPDC machines have no toggle.
Because of this, they typically have a smaller machine footprint, greater rigidity and fewer wear parts for improved reliability and lower maintenance costs, they tend to be a preferable choice where closing forces of more than 1,650 tonnes are required.
What are the most common applications?
Cold chamber high pressure die casting technology is ideal for production of a diverse range of aluminium and magnesium automotive castings such as structural body work, battery housings, engine blocks, gearbox casings, oil sumps and engine mounts.
HPDC is also widely used in other sectors to manufacture components ranging from lighting components to aerospace engine parts.