Is the rotational molding equipment process suitable for all plastics?

Common roll forming raw materials in the market include the following: polyethylene (PE); Polypropylene (PP); Nylon (PA); Polyvinyl chloride (PVC); Polycarbonate (PC).

The problem is that not all of the plastic mentioned above can be used for rotational molding. Rotational molding requires specially designed materials, and the basic requirements include:

Easy to grind (or maintain liquid state). By utilizing high-performance room temperature and low temperature grinding machines, we can already process commonly used rotational molding raw materials such as polyethylene and polypropylene, and the cost is constantly decreasing.

Appropriate liquidity. Taking commonly used polyethylene raw materials as an example, the melt index (MI, or MFI) range of the grade should generally be between 2 and 0 (g/0 minute), and the optimized melt index range is 3-6 (g/0 minute). If the melt index is too low, the product is difficult to shape. If the melt index is too high, the physical properties of the product will decrease.

The specific manufacturers of the rotational molding equipment will not be introduced here. If you have any other questions, please feel free to contact us by phone.