What is the general rejection rate of plastic film blowing enterprises?

If you just blow film, the specific waste products are as follows:

1: waste generated when starting the machine;

2. Non-conforming products when changing size;

3. Non-conforming products in case of machine failure;

To sum up, the rejection rate should be around 0.5%, depending on the production situation.

Of course, there are also some reasons for the skill of the film blowing master. For example, a good master can change the size with 5 kg of material, and a less skilled master may need 10 kg.

The scrap rate of cylinder film is generally less than 0.3%, and the trimming film depends on the product specifications you produce. For example, if you make a 60cm film and trim it to 1cm, then you can forget it. Anyway, the wider the film, the lower the scrap rate.

The specific algorithm is as follows:

The film with a width of 550mm*0.06mm produced by our company needs to be blown into a tube film of 600mm in production, and then cut off 25mm on both sides, so it is 25*2/600, and the rejection rate is about 8.3%.

Calculate according to the actual production situation!