Powder scattering devices (PSD) can be used across many areas of industries, from scattering powder adhesive for a bonding application, to adding products to assist with fire retardancy etc.
Irrespective of the polymer type used; EVA, PE, PA, PES, TPU, etc., the scattering can be achieved on web widths of up to or greater than 5 metres, from just a few g/m2 for cost-effective lamination, or higher amounts for full surface coating.
Our PSD’s use a collection roller, in conjunction with an oscillating brush, to ensure a regular scattering of the product. Capable of spreading powder from around 80 up to 500micron granules, once the required powder covering is achieved; this can then be synchronized with the speed of the production line. The required scattering width can be adjusted to be step-less and even asymmetric, if required, over the complete web width.
After scattering the powder, it is important to ensure that it stays in the correct areas over the surface of the web. Where the substrate surface is not able to maintain this, a compact Infra-Red (IR) section can be incorporated to sinter the powder to the surface. By adjusting the heat applied to achieve the desired effect, there is no damage to or uncontrolled shrinkage of the substrate.