Unlike most of our competition, we offer three types of castings –
aluminum sand casting,
gravity die casting and
aluminum die casting.
We can also provide tooling, CNC machining, polishing, plating, heat treatment, pressure test, vacuum Impregnation, assembly and testing for your orders.
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......
The process is suitable for less quantity and high quality aluminium castings, the surface is better than sand casting. The material of permanent mold is steel, the mold is pre-heated up to 200℃ before the aluminum alloy is poured into the cavity......
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......
In our factory, we are training the operators all the time. They can join in some skill games in China and take good achievement. I am sure our skilled operators can meet your requirements: drilling and tapping, milling, lathe work and grinding......
Following the casting process, we offer a full array of secondary operations, such as CNC Machining, Polish and Mirror polish, Shot blasting, Powder coated, Anodizing, Color Anodizing, Cataphoresis, Heat Treatment, Vacuum Impregnation, Assembly.......
Our quality control system covers every processing stage from the initial materials inspection to the completed product inspection in accordance with ISO 9001 standard......