Differences between hot chamber and cold chamber die casting are mentioned below.
| Hot chamber die casting | Cold chamber die casting |
|---|---|
| 1). In hot chamber die casting, the source of molten metal is attached to the machine. | 1). In cold chamber die casting, the molten metal is introduced to the shot chamber from the external source. |
| 2). This process is not suitable for metals which have high melting temperatures. | 2). The die casting machinery remains cooler as the molten metal is applied from the outside source. |
| 3). Alloys having lower melting point can be casted using a hot chamber die casting process. | 3). Alloys having higher melting point can be casted using a cold chamber die casting process. |
| 4). The production rate is higher as the material brought in every cycle is constantly outputted. | 4). The material is needed to fill in the cylinder in every cycle for the production, so the rate of productivity is less. |
| 5). Less pressure is required to apply in the hot chamber die casting process. | 5). Cold chamber die casting process requires high pressure to be applied on the molten metal. |
| 6). The machinery life is less because the entire cylindrical and plunger are submerged in the molten metal. | 6). Machinery life is more as the part of the cylinder and piston are in contact with the molten metal. |
