Granule Production by Impregnation & Coating

Exwold offers you impregnation and coating contract processing. We can:

• Impregnate liquids into highly absorbent carriers. These can be either granule type carriers (e.g. sepiolite) or powder type carriers (e.g. precipitated silica).
• Coat an inert carrier such as limestone or sand by spraying fine powders or liquids onto the surface.

For your specific granulation needs, our drum blenders are equipped with drying capability for both impregnation and coating.

Impregnation can benefit you by:

• Retaining a free-flowing product when spraying a high concentration liquid
• Enabling a low melting solid to be converted into a water-dispersible granule through impregnation into precipitated silica.
• Safer handling and improved packing making transportation easier

We are able to handle different feed materials and spray from drums through to 20,000l tanks.  If you would like us to colour your granules we can!

Exwold contract formulate and process extruded granules, using radial extrusion, for the crop protection market.

Benefits of extruded granules in crop protection include:

• Higher active content formulation
• Multi-active formulation
• Dust free formulations
• Reduced transport costs
• Improved long term stability storage
• Safer and cleaner handling

This process is used extensively within the global agrochemical industry in the production of Water Dispersible Granules (WDGs) for pesticides including herbicides, fungicides, insecticides and plant growth regulators (PGRs). Exwold offer a dedicated plant for the production of high active herbicide granules. Extrusion technology is now being utilised in detergents and speciality markets including coatings and plastics.

Exwold offers contract compaction producing a granule from your powder using roll compaction technology.

Roll compacting can offer you the following benefits:

• Improved efficiencies
• Competitively priced granules
• Dust free, free flowing granules
• Improved handling
• No liquid additions or binders required

Roll compacting is a versatile granule production technique which lends itself well to a range of speciality chemical applications, such as flame retardants, de-icing products, water treatment products, plastic additives plus many more.