The rapid development of packing field not only conforms to the trend of the times, but also changes and improves the mass transfer performance. As an early bulk packaging, the metal rassier ring is still produced by many manufacturers.

Most fillers are bulk fillers. The metal "rassier ring" is one of them. The attention to filler is relatively simple in shape, and the height and diameter of filler are the same. This kind of filler also has certain acid resistance, no matter organic acid or inorganic acid will not affect its quality and performance. At the same time, it can also be applied to high temperature environment with certain anti-aging properties. This is a filler made of metal sheet, which can show relatively thin wall under the permission of strength, but one disadvantage of this filler is poor mass transfer performance. However, because such structures are relatively simple in the market, many manufacturers still use them. After all, the price of this filler is relatively low.

In the continuous development, based on the rassier ring, there are many advanced new fillers, such as step ring, Bauer ring and so on, which are developed on the basis of such fillers with high mass transfer performance. The corresponding resistance is reduced fundamentally, so that the gas-liquid reaction is better and the performance is better.

As a random packed product, the metal raschion ring still has many advantages, but some mass transfer properties are relatively poor. For the low or relatively low budget of the manufacturer, this type of filler has enough choice to meet the business demand and reduce the cost at the same time.