Sanding system - Import export

The VX4000 is the world's biggest industrial 3D printing system for sand molds. It has a cohesive build space measuring 4,000 x 2,000 x 1,000 mm (LxWxH). This machine can be used to economically produce very large individual molds, a great many small series components or a combination of the two. With its uniquely large volume, the VX4000 maximizes productivity and flexibility. The unique and patented layering process was specially adapted for this printer. Instead of lowering the building platform during the printing process, the print head and coater are raised with each layer. As a result, the machine can bear the enormous weight of the building platform, which can be quickly exchanged via a rail—making it possible to print nearly continuously. Sand can be used as the particulate material. The VX4000's print head system can achieve a resolution of up to 300 dpi. A layer applied in one cycle is 300 µm thick.

The chip-washing system reliably separates sand, rocks, and other contaminants from chips. This system is an indispensable machine technology especially for use with chips purchased from third parties and strongly contaminated raw material to minimize the wear of all downstream components, especially the plug screw and the grinding segments of the refiner. The chip-washing system also pre-conditions the chips for subsequent fiberizing. Characteristics, Function The chips are fed to the chip washing system. Here, a rotor dunks the chips under water and produces a high turbulence. Thus, the system implements the best separation of foreign bodies from the chips. Contaminants such as sand and rocks sink to the bottom and can safely be discharged. Afterwards the chips are transported in the water stream into the dewatering screw where they are separated from the process water. At this point the process water is discharged through screen plates. After being reconditioned and freed...