The high pressure slip casting system „Type BTDG“ has been designed for series production of cups, including handles, in one production step, at an very high production output rate. Thanks to an in-house innovation team consisting of experts in the fields of ceramics, engineering, design and manufacturing, a further development of Lippert‘s highly successful cup pressure casting machine „Type TDG-500-20“ was designed. This further development „Type BTDG“ combines the functionality of the machine „Type TDG-500-20“ with high production output and thus enables the serial production of cups in the pressure casting process. Compared to the standard model with an output of approx. 100 articles/h, the high pressure slip casting machine „Type BTDG“ could be optimised by a factor of four in production output and convinces with an output of up to 400 articles/h (25 cycles x 16 articles) at a total cycle time of 144 seconds, a total of 4 moulds with 4 articles per mould. An innovation is the automatic fettling machine, which can be directly attached to the pressure casting machine, enabling automatic finishing of the pressure casting seam.
The automatic high pressure casting production, including drying and subsequent robot finishing, is designed in a simple and compact manner. This is mainly the result of using servo-controlled axes instead of hydraulics: 3 axes control the opening and closing of the mold, and another servo motor operates the slip pump. The multi-part molds are made of porous mold material. The high pressure-cast cups are automatically removed from the mold and placed in a solidifying dryer. The subsequent fully automatic cleaning is performed by a 6-axis robot using various cleaning tools. Various machine details have been registered as a patent.
LIPPERT’s handle pressure casting method offers crucial competitive advantages regarding manufacturing costs, efficiency and flexibility. This sophisticated concept for manufacturing up to 600 ready-to-use handles per hour without manual handle seam finishing contributes to a considerable increase in productivity in cup production.
„Better – more flexible – more efficient“ – with this objective LIPPERT develops, designs and implements slip casting machines for the ceramic industry for more than four decades. A wide program of machines for hollow and core casting was developed in permanent and close cooperation with ceramics producers in the tableware and technical ceramics sector. The high amount of worldwide delivered machines and the excellent references prove the success of LIPPERT slip casting machines.