A Double Shaft Adhesive Mixer Agitator is an industrial mixing machine designed specifically for processing high-viscosity materials, such as adhesives, sealants, pastes, gels, and other thick formulations. It features two independently driven shafts with different agitators that work together to provide efficient mixing, dispersion, and turnover in viscous batches (often up to several hundred thousand or even a million centipoise).
Double Shaft Adhesive Mixer Agitator Video
Key Components and How It Works
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Low-speed shaft: Typically equipped with an anchor agitator (or helical/scraper blade) that sweeps close to the vessel walls. This provides bulk movement, scrapes the sides to prevent buildup, improves heat transfer, and feeds material toward the center.
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High-speed shaft: Usually fitted with a saw-tooth disperser blade (or high-shear disc) that creates intense turbulence and a vortex for rapid wetting, deagglomeration, and fine dispersion of powders or solids into the liquid.
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The shafts can be concentric (one inside the other) or offset, and speeds are adjustable via inverters for optimal control.
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Often includes features like vacuum capability, jacketed vessels for heating/cooling, and PTFE scrapers for clean walls.
This combination allows the mixer to handle shear-thinning materials effectively—breaking down agglomerates while ensuring uniform blending without dead zones.
Applications in Adhesives
These mixers are widely used in the adhesives and sealants industry for:
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Hot melt adhesives (e.g., glue sticks)
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Pressure-sensitive adhesives
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Epoxy, rubber, silicone, or RTV compounds
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High-viscosity pastes like putties or caulks
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Emulsions and dispersions requiring deaeration under vacuum
They excel where single-shaft mixers fail due to insufficient turnover in thick batches.
Benefits
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Handles viscosities far beyond standard dispersers
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Faster processing and better homogeneity
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Reduced air incorporation (with vacuum options)
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Scalable from lab (1-5 gallons) to production (up to 1500+ gallons)
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Customizable for specific needs (e.g., explosion-proof motors)
* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.
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