Choosing the Right Purging Compound for Blow Molding Machine

Choosing the Right Purging Compound for Blow Molding Machine

Extrusion blow molding is continuous, and contamination badly impacts the blow molding process. As a result, it affects your business bottom line. In addition, blow molding has more significant issues than other processes. When the contamination starts, it’s almost impossible to stop. It needs aggressive intervention through a screw pull or a top-quality purging compound.

Considering a purging combination for the blow molding process is essential, especially if you want to stay competitive in the thermoplastic industry.

However, materials change more frequently, which makes waste disposable more difficult and expensive. Not to mention the number of customers who demand just-in-time.

Minimizing waste, time, and cost are the most significant factors every blow molding plant considers to stay competitive in the industry. They have over 70% fewer costs when using suitable purging compounds. This way, these companies will save up tens of thousands of dollars every year.

Currently, the most popular method for purging extrusion blow molding equipment uses the next processing resin or regrind. This approach can result in a much longer purging time, a higher rate of scrapping, and significant residue buildup over the long-term use.

Choosing the suitable purging material for blow molding – In most circumstances, purging compounds minimize the blow molding changeovers dramatically. They eliminate the contaminants and residue effectively. Hence, choosing the correct grade purging material makes a significant difference in the blow molding process.

As per the design point of view, extrusion blow molding heads and accumulators are low-pressure areas. The low flow or low-pressure environment in the extrusion molding makes cleaning specific regions more difficult. Though mechanical purging compounds need a maximum amount of pressure, they are not the right choice for this application.

In this case, you should consider using a chemical purging compound. When it comes to cleaning the screws for extrusion, it is better to use the right product and the purging process. Otherwise, they may damage your screws or die heads and result in severe problems in the production.

When choosing the product grade, you should consider the resin to be purged and its processing temperature. If your facility is affected mainly due to contamination, you may feel a different grade. However, the purging compound should have a low melt index, ensuring better resin compatibility.

The purging process for the extrusion blow molding differs depending on the purging product you are using. If you don’t know how to clean your extrusion blow molding machine in the right way, you need to contact your purging compound supplier.

It’s highly suggested to place an order for suitable free sample purging compounds.

This way, you will make sure that the blow molding machine runs smoothly and remains in top condition. You can achieve them if you use them in the right way.

When considering help with investing in purging material for blow molding, feel free to contact UNICLEANPLUS™ today at +91 9021232809.