Polymer Blending Equipment

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Polymer Blending Equipment

If you are currently producing PMA (polymer-modified asphalt), D&H would like to help you produce faster and more efficiently. Rather than milling and remilling over several passes, our process offers a solution that provides proven inline mixing and one-pass milling capabilities. Our years of experience in building asphalt blending/modifying equipment helped us design this process for blending and milling polymers into asphalt.

D&H can custom build polymer plants to your specific application with flow rates ranging from 10 TPH to 60+ TPH of concentrated PMA binder production. Multiple configurations including skid-mounted models for terminal blending, containerized models to allow for economical ocean shipping, and portable trailer models for blending on-site by contractors or for use at multiple terminals.


  • Capability to using one plant produce either polymer modified asphalt or asphalt rubber
  • Greatly reduced digestion time when producing polymer modified asphalt
  • D&H Horizontal Mixing Chamber (learn more about this HERE)
  • Capability to refill hoppers without the need to stop blending process
  • Operations can be run with as little as a two-man crew (operator and groundsman)100% manual backup controls for operation with remote access to PLC
  • Capability to precisely meter liquid additives into blending process

“Traditional” Polymer Milling Method

Disadvantages of the traditional blending method:

  • Batch system setup slows production capability
  • Longer digestion time
  • When the polymer has time to soak in the mixing tank before going to the mill, it becomes glue-like and doesn’t mill as efficiently
  • Because it doesn’t mill as efficiently, it requires multiple passes through the mill, using more time, energy costs, and putting unnecessary runtime hours on the mill equipment

D&H Polymer Milling Method

Advantages of the D&H blending method

  • Continuous one-pass inline blending capability
  • Reduced digestion time
  • Polymer is forced through the mill seconds after it combines with the liquid asphalt
  • Polymer has greater tendency to shatter when it hits the mill since it hasn’t had time to become “glue-like”
  • German-manufactured high shear mill
  • Ability to expand production by configuring multiple concentrate and letdown tanks to offering the highest production rate
  • Advanced automated control system and reporting capabilities

The D&H Polymer Process