There’s been consistent growth of demand for granulation and size reduction. But a granulator is needed in the chopping of scrap plastic and reduction of size into more manageable tiny granules. The generated granules could then be utilized in other plastic manufacturing or sold in the open market. 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.
Below are a few important points to assess when picking a granulator for cutting scrap plastics:
Understand Your Application
5 Uses For Equipment
The first thing that should come to your mind when selecting the appropriate granulating machine is your intended application. Firstly, define the material in relation to the amount of it you need granulated to size and the bulkiness of the scrap parts. It’s necessary that you determine the physical size and shapes of these parts. Next, focus on 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. In case we’re taking about 95% sprues and runners plus the once-in-a-blue-moon purge, it’s more efficient to cater for the runners and sprues together while determining a disparate solution for the purge. As far as granulation is concerned, there’s barely a single system that’s seamlessly all in one, and any consistent use of a single solution for all solutions may result in effective operations and higher costs over the long term. On the other hand, taking into account all pertinent aspects of intended use and materials becomes crucial in the identification of the ideal rotor type, chamber size, and capabilities for horsepower necessary to for flawless execution of the task.
Consideration of Granulator Parts
In the selection of your granulator, the rotor is one of the most essential components to take into account. If dealing with thin walled fragments, pick an open rotor. The open design provides for streamlined flow of materials. The best for large, thick scraps is a closed rotor design, while a staggered rotor, which has more cuts for each revolution, is a hybrid of the other two designs.
You may also consider the type of engagement between the fly knife and bed knife because it has a relationship with horsepower requirements. Offsetting the two knives creates a scissor cut. You could select a machine with two bed knives, or prefer one with three or four for improved cutting action. Similarly, don’t forget chamber size and shape as these have a bearing on the extent of cut the knives can deliver with each action.