1. Specially designed screw-wing system is characterized with excellent mixing effect. With minimum addition of resin binder and catalyst, it can coat surface of sand particules completely and results in satisfactory compressive strength. This hereby reduces molding cost to a great extent.
2. Due to mixing sand separatedly with resin binder and catalyst in different trough, no sands adhere to wall of trough. It is easy to clean the wall of trough.
3. Batch/continuous mixing system is characterized with controlling mixed sand of pro-set value by pressing button, No waste sand occurs.
4. Utilizing quantitative pumps driven by DC motors, operator is possible to vary ratio of resin binder and catalyst at his desire. It is also possible to mix faced sand, backsand and desire, It is also possible to mix faced sand, backsand and core sand of different required compressive strength.