Vibrating Sifter for Powder Coatings

Jotun, Norwegian chemical company integrates Russell Finex sieving solutions into its powder coatings processing line for optimized sieving

The Powder Coating Process

The powder coating process involves a number of steps taking the raw materials through various stages to form a ‘plastic’ mix. This is then cooled and broken down into plastic chips before being micronized and passed through a cyclone classifier to separate the large and fine particles.

Quality Control Screening

The final stage of the process involves sieving the fine powder to remove extraneous contaminants such as filter bag ‘fluff’. Sieving the powders at this stage ensures only powder of the correct particles size is passed through to the filling line. This is critical because this will have a direct impact on the quality and film thickness that can be obtained during the coating process.

Problems with traditional methods of screening and the solution

To overcome the blocking of mesh, some manufacturers have experimented with ‘off-line’ screening and rotary sieves. However these methods can also compromise product quality since very little oversize is collected during the sieving process. Russell Finex have developed the ultimate solution for this application. By combining the Russell Compact Sieve® check-screener and Vibrasonic®Deblinding System, the most efficient sieving solution can be obtained.

Russell Finex has 85 years of experience supplying sieving and filtration equipment to a range of industries. To find out more information about the Russell Compact Sieve® and how your new or existing processing line can benefit from this optimisation, contact Russell Finex today.