Our aluminum foundry is set up in 1995 year. First, we only have green sand casting process, then We built resin sand casting line in 2000 year. Now we have five production lines for large aluminum green sand casting jobs up to 500kg/piece and 30 platforms for smaller aluminum alloy castings.

Dongrun Sand Casting, Aluminum Sand Casting, Gravity Die Casting, Aluminum Die Casting Manufacturer in China.

Aluminum Sand casting is traditional casting process in China, it is major inventions of ancient China, it is important as China's four great inventions. The sand cast process originated in the Southern and Northern Dynasties, about 1600 years ago.

Die-casting mould is made from steel and similar as permanent mold casting, suitable for aluminum alloy, zinc alloy and copper alloy. Now Dongrun is only an aluminum die casting manufacture, not for other metal

die casting can refer to any kind of casting using a die such as gravity die casting or low pressure die casting, yet here die casting only refer to high pressure die casting. Aluminum die casting is a process of casting Aluminum alloy under pressure, which can produce precision parts in high volume at low costs.

Aluminum gravity casting and sand casting process is always used for heavy part with big wall thickness and very strong mechanical property after T6 heat treatment. Its also better to avoid porosity inside casting after secondary machining.