The tray-type filter element is based on the original ordinary filter element upper cover. Through exquisite argon welding technology, the tray is fixed on the universal filter element. The size of the upper cover tray is 355mmx405mm, and the tray side height is 10mm. It is made of galvanized sheet with a thickness of 1mm. Due to the unique shape design of the upper part, as long as a hole of the outer diameter size is opened at the bottom of the filter cartridge at the installation part of the equipment plate, it can be put in. Through the sealing connection of the upper part, it can be put into operation. This filter element is also a new product. Generally, two specifications of outer diameter are provided, 280mm and 350mm, and the height is suitable for 600mm, 660mm, 800mm, 900mm, 1000mm, 1200mm, and 1600mm. Other dimensions can also be designed according to customer needs.