Sometimes it seems that we are surrounded by plastic. In fact, any person can probably find several plastics in the room where they are sitting by simply looking in their current space without even moving. Plastics, like any industry, has its own vocabulary, its own processing and finishing techniques, and its own method of the increasingly popular recycling and reusing process.
One of the challenges of working with plastic, which starts as a liquid and is hardened into a solid, is avoid air pockets which can lead to structural defects and weak points. Vibratory screeners are just one of the mechanisms that are used to make sure that manufactured plastic pieces are both sturdy and stable. Tumbling drums, surge machines, and vibratory screens, in fact, are an integral part of the plastics processing industry that allow these materials to be affordably produced with a predictable and acceptable level of quality.
High frequency vibrating equipment is a shaker with a fixed frame. Because the drive only vibrates the screen cloth, the high frequency vibration equipment is made for particles that are between the range of an 1/8 inch, or three mm, down to a plus 150 mesh.
Full circle hammer mills produce a 20% coarser grind under the ideal conditions because the hammers can present the material straight at the the top of the screens holes.
Tumbling drums come in a variety of sizes, but the most popular barrel dimensions typically vary in diameter from 18 inches to 36 inches and in lengths from 18 inches to 42inches. Typically, the length is larger than the small. Depending on the barrel size and the items to be tumbled, horizontal barrel speeds vary from 20 RPM to 38 RPM.
Rotary crushers are plastic manufacturing machines that are typically built with shaft impactors to create considerable force. These machines are ideal for both food processing and recycling, and they can be calibrated for a size reduction ratio between 10:1 and 25:1.>br>
Vibratory screeners, tumbling drums, and hammer mills are all spcialized kinds of machine accessories that are used in the plastics manufacturing industry. Although the use of plastic is very common, the machines and technology that are used in this industry are far from common, and actually very task specific.