What you need to know about preventive maintenance of extruders and injectors

Understand the importance of doing preventive maintenance on the equipment and see how the activity should be carried out correctly.

Preventive maintenance of extruders and injectors is the best way to increase the durability of portable equipment parts. After all, this increases its useful life and, therefore, keeps the production line operating with quality and safety.

Preventive maintenance allows machines to carry out the extrusion process efficiently. As a result, the process continues in the same way as when the equipment was purchased, which reduces the risk of unexpected stops. As a result, preventive maintenance costs much less than is necessary to replace broken parts.

Want to better understand how to do preventive maintenance of extruders and injection molding machines? Check it out!

Problems that preventive maintenance can avoid

"Preventive maintenance will prevent unexpected stops that hinder the entire production schedule, increasing costs and harming customers, leaving them unsatisfied," explains Alexandre Farhan, Technical Director of Escola LF.

According to the expert, stopping production at unexpected times tends to generate large losses for the company. Often, they even cause very expensive fines due to contracts that cannot be fulfilled due to the failure of the machine, mold or some equipment that complement a work cell, for example.

"In addition, the time that this machine will be inactive often depends on an external technician who will not always be available. A very expensive service that, with each passing day, becomes scarcer. Another problem is the machine parts, the mold or any tool that does not exist in stock or that is not available in the market. Mainly Chinese machines, which do not have technical assistance in Brazil, with the need to look for them abroad or make them," he adds.

Farhan explains that the two cases lead to critical situations arising from the lack of preventive maintenance. In addition, reducing profits and losing money can be huge.

How to do preventive maintenance

In general, preventive maintenance should strictly follow the manufacturer's recommendations, which are provided in the machine manual. In fact, this is usually one of the biggest mistakes when performing maintenance, as people tend to ignore the manual.

Another important point here is that the training to operate the machines is also carried out according to the manufacturer's recommendations. And not informally, with one operator teaching the other, as is usually quite common.

A good tip to avoid preventive maintenance is to follow the following steps:

1. List all the equipment in the factory.

2. Prepare a table with ISO A0 shape (1189 mm x 841 mm) and divide it into rows and columns. First, list all equipment and its secondary elements, such as thread wear and gearbox oil change. In the second column, indicate the frequency of maintenance activity, such as lubrication or alignment.

3. Make 52 more columns so that each one corresponds to one week of the year. Then, with the equipment manual in hand, make an "X" in the weeks in which the equipment must undergo maintenance.

Preventive Maintenance Frequency

"The frequency of maintenance will determine who is the manufacturer of the machine, mold or tool. In general, it is for hours worked and must exist at least once a year, at least, even for the general cleaning of the machines to keep them clean and preserved," Farhan recommends.

The expert exemplifies that some companies perform preventive maintenance at the end of the year, one day before collective vacations. Occasionally, machines stop for cleaning and operator training is provided. As a result, preventive maintenance begins to be part of the company's culture, in addition to recycling employee knowledge.

Keep in mind that preventive maintenance is one of the best and most important investments you can make. After all, with this, your company unexpected downtime increases the life of the machines and improves profitability.