Perforated Band Screens


Perforated band screens are fine screening equipment which are used for capturing the solid materials that can negatively affect the following mechanical equipment in plant and the further treatment processes, and generally preferred to use in middle and largesized municipal and industrial wastewater treatment plants. They are specially designed for providing high separation ratio in deep and wide channels. Together with the undesired solid materials such as inorganics, organic matters are removed as well. This type of screen gives an outstanding performance especially for fine screening process. They are the equipment that can easily deal with the high amount of grit and gravel problem. Double-sided design of the perforated band screens obtains maximum solid-liquid separation efficiency by preventing long fibrous materials from passing through the screen. The main screening media of this screen is composed of perforated plates which are integrated into a drive chain and it works as an endless loop. The rakes that are in the same width with the screen are placed on the perforated plates to avoid falling down of the captured screening materials. On the other hand, there is a reversely rotating brush placed at the top point of screen to be able to clean the equipment continuously. At the same time, nozzles increase the cleaning efficiency by spraying clean water on the screen plates. Sismat Uluslararası Perforated Band Screens are mainly made up of frame, sprockets, chain, drive shaft, perforated belt, cleaning brush, nozzles, drive unit and discharge chute.


• Reliable and robust design

• High screening ratio

• Suitable for use in deep channels

• Minimum area requirement due to the compact design

• Easily installed and retrofitted into the existing channels

• Automatic self-cleaning mechanism

• Low operation and maintenance cost