Double Barrel® Drum Dryer / Mixer
Combination Aggregate Dryer/Drum Mixer
Astec brings you the Double Barrel dryer/drum mixer, the mixer of choice over any other. The Double Barrel dryer/ drum mixer combines the latest in hot mix technology with other great Astec features. Get guaranteed productivity and top quality mixes while keeping operating costs per ton of mix low and meeting the most stringent environmental codes. Stationary, relocatable and portable versions all perform to the same high standards.
Available In Three Styles
Need the quick setup and mobility of a portable plant, or the flexibility and operating capacity of a stationary? Maybe the best of both? Astec gives you the freedom to design a hot mix facility to your precise needs. The Double Barrel dryer/drum mixer can be configured for the three styles of Astec asphalt plants: stationary, relocatable and portable.
Features & Benefits
- The Double Barrel's unique design uses the entire drum for production of RAP to 50%
- Sequential mixing allows better temperature equalization throughout the mix
- Astec patented V-flights for veiling of material over a wide range of tonnages
- Virgin aggregate temperature is measured to automatically adjusting the burner
- RAP, bitumen (AC), and fines enter without contact to the dryer flame
- RAP enters the mixing sequence first where it contacts the super heated virgin materials Fines are introduced to the mixing process last for proper coating
- Adjustable mixing paddles for flexibility
- Self cleaning drum reduces buildup in the mixing chamber
- Hydraulic door provides safe access to the outer mixing chamber from the ground
- The outer chamber is lined with insulation to capture heat from the drying process
- Chain or trunnion drive configurations are available
- Compatible with the Astec Green Pac warm mix systems
Built For EfficiencyNo matter what style or facility configuration you have, you can take advantage of the most thermally efficient dryer/mixer available – the Astec Double Barrel®.
The Drying ProcessThe Astec Double Barrel® drum mixer and control system are designed to move aggregate effortlessly through the mix process with maximum efficiency.
The Mixing ProcessThe Double Barrel® dryer/drum mixer's long mixing chamber and stationary outer shell provide the ability for adding ingredients sequentially. This unique design produces a more consistent mix.
Run Clean even with 50% RAPThe innovative Astec Double Barrel® dryer/drum mixer is designed to reduce emissions and minimize oxidation in the mixing chamber. The result is a better mix and easier permitting.
Four Burner OptionsAstec burners offer the latest in reliable burner technology combined with complete one-source responsibility.
Built to LastAfter millions of tons of mix production, the Astec Double Barrel® dryer/drum mixer proves itself to be the most reliable and lowest maintenance dryer/drum mixer available to producers.
Superior DesignThe Astec Double Barrel drum/dryer mixer is constructed to the highest quality standard with proven wear materials and easy access for maintenance.
Anatomy of the Double BarrelThe Astec Double Barrel dryer/drum mixer offers low cost performance in stationary, relocatable and portable versions.