There’s been consistent growth of demand for granulation and size reduction. And a granulator is a machine that cuts and reduces the size of scrap plastic into smaller granules for easier management. The resultant granules may later be harnessed for other plastic-based objectives or offered in the open market for purchase. When shopping for a granulator, you need to choose the right machine to ensure efficient management of the costs of materials, help deliver recycled content, and boost the bottom line.
Here are some essential considerations in the selection of a granulator for chopping scrap plastics:
Understand Your Application
Learning The Secrets About Tools
The job for which you’re selecting the ideal granulating machine is the first issue you need to understand. Step one, understand the material along the lines of the amount of it you want cut into granules as well as how big the scrap plastics are. It’s necessary that you determine the physical size and shapes of these parts. Then, consider the material itself. Various plastics don’t always produce the same reactions, and PVC and glass-reinforced plastics exhibit different reactions from polypropylene, for example. And when more than one feed streams are being deployed, it’s sensible to determine percentages for these. When you’re handling roughly 95% sprues and runners in addition to the sporadic purgings, it’ll be more effective to have a solution for your sprues and runners while allocating another system for the purge. In the world of granulation, it’s impossible to find an perfectly all in one machine, and the use of one solution for all materials can lead to operational inefficiency as well as additional costs over the long term. Having said that, consideration of all essential elements of your application and materials proves important in the selection of the right rotor type, chamber size, and horsepower capacity needed to deliver superior results.
A Look at Granulator Parts
When selecting your granulator, the rotor is among the most critical components to look at. You may prefer an open rotor for processing fragments with slim walls. The open design provides for streamlined flow of materials. A closed rotor is ideal for large, thick scraps, and a staggered design, which supports more cuts per revolution, is a compromise between the other two designs.
It may also help to look at the mechanisms between the fly knife and bed knife as horsepower preferences may be affected. The two knives are offset to produce a scissor cut. A granulator may have two bed knives, although some machines may have three or four to enhancing cutting action. Likewise, take chamber size and shape into account as these do impact the size of the chunk the knives can bite each turn.