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Bung Mixer

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2 of 19

Bung Mixer

The need for different types and styles of mixing in a drum can be found throughout the chemical, paint and coating industry. An agitator can mix liquids and solid materials inside of a metal container.

Since there are many ways to agitate fluids in a drum, it is important to get familiar with the different methods that can be used and the different types of drum agitators that exist.

What is a Drum Agitator?

- A machine that mixes chemicals in a container (usually metal), called a drum.

How to Choose a Drum Agitator: 3 Methods for Mixing in Drums Supplying the right method to mix chemicals in a drum is important because it can affect efficiency, safety and production.

Types of Drum Mixers

- Spiral mixer: uses a helix spiral blade wrapped around the inside of the drum, slow slow mixing action but easy to clean.

- End cap agitators: create a torque movement on the drum for thorough mixing.

- Direct drive Agitators: Attached to the shaft of the drum to mix the chemical within the drum.

Other Things to Consider Before Purchasing a Drum Agitator

- Power requirement for optimum performance

- Equipment total height

Container volume to be used

Bung mixing in drums is a method to mix materials inside a drum, as well. However, they are not very effective, run at high speeds, and cause temperature issues. These mixers operate at high speeds, and often have a high shear rate because of their high speed. Typically they have a tiny and ineffective blade on them that turns the material.

Even if the bung mixer is replaced with an agitator the material will still spin at a high rate of speed. This means that it is still essential to slow down the mixing process by using weight loads and chills.

Are there other ways to mix drums?

Multi-cone Agitators are made up of multiple cones that stack on top of one another. Multi cone Agitators work by rotating the container, and then having a spiral-shaped mixing shaft rotate within a few cones to mix chemicals.

End Cap Agitators use an adjustable mixing screw to allow the chemicals to flow from the center of the barrel.

- Side Press Agitator is used in cylindrical drums and has a side press fitting instead of a bung, this allows for a positive seal and easily attached with a mixer shaft.

Pallet Agitator is similar to an end cap-agitator, but uses paddles in place of a mixing screw. The positive seal is needed for drum bungs to prevent leakage.

- Direct drive agitators are equipped with the shaft that attaches to the mixer directly to the drum's rotating axle. This can help reduce vibration in the system.

- Vibratory Drum Mixer can be used for mixing paint or other liquid chemicals together, rather than dry materials. This drum mixer is made up of a rotating agitator, an eccentricweight, and a coupling device that reduce vibration transfer to the drum.

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