This section provides an overview for paint agitators as well as their applications and principles. Also, please take a look at the list of 10 paint agitator manufacturers and their company rankings.
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Paint agitators are agitators used to separate paints that tend to settle and separate.
When paint has settled and separated in a container, especially if the paint contains special beads or finishing agents, transferring the paint to another container and agitating it will change the composition, resulting in a difference in the finished product. Even when stirring in the same container, if the container has corners, such as a 1-ton can, normal stirring will cause uneven stirring, resulting in a difference in the finished product.
If the liquid is scattered outside and the dry film returns to the paint, paint defects called "bumps and debris" will be generated.
Paint agitators are often used prior to the creation of a coating. Many paint film agitators are designed with rings on the agitator blades so that the agitator blades do not touch the container even if they are placed along the container wall.
If the temperature rises due to agitation, the paint viscosity will change. This will affect subsequent workability, so it is necessary to agitate with subsequent usage and curing time in mind.
Paint agitators are usually powered by air motors, since the speed and torque must be adjusted in many cases. The air motor drive system allows the use of paints that contain organic solvents without the risk of sparking discharge.
They can be used for mixing powder such as pigments into paints without the danger of sparks. The air motor drive type is a type of pressure motor that uses compressed air. Compressed air is supplied to the housing inside the motor, and the air is supplied through both end covers to a cylindrical rotor called a vane, which has a plate protruding from the inside.
The difference in the area of the vanes generates a rotational force, which creates a separated space. Air enters there and rotational motion occurs. Exhaust air is discharged into the air, making it compact, and air cooling occurs along with the air supply, making it resistant to overheating and capable of continuous use.
Also, since there is no need to insert oil into the power source, oil dripping from the power source stains the paint, preventing paint film defects called "hazing."
Paint agitators, also called paint mixers, are available in a wide variety from various manufacturers. The paint mixer uses a motor to rotate a screw-shaped object called a mixing blade to agitate and mix paint and other materials.
Some paint mixers can be used by replacing the drill of an impact driver with a mixing blade. Since they are not specially designed motors, it is better to purchase them as dedicated tools to prevent breakdowns. Criteria for selecting a paint mixer include motor speed, torque, and mixing blade shape.
The speed and torque of the motor depend on the viscosity of the paint. For low-viscosity primer and topcoat materials, a high-speed (about 1000 rpm), low-torque mixer should be selected, while a low-speed (about 500 rpm), high-torque mixer should be selected for high-viscosity materials such as elastic ricin and mortar.
Nowadays, there are slightly more expensive paint mixers with variable motor speeds and torques. The shape of the mixing blades depends on the paint to be mixed and the amount. For high viscosity and large amounts of paint to be mixed, we recommend a mixer with a large diameter and blades that extend vertically.
On the other hand, for low viscosity paints, a mixing blade that is too large may cause the paint to scatter, so choose a mixing blade according to the type of paint to be agitated.
When using a paint agitator to stir paint, one must be careful about the method used. Usually, the stirrer is placed directly into a 1-ton can of paint, or into a large bucket that is easy to work with, and then the stirrer is placed in the bucket to mix the paint.
At this point, the container containing the paint should be held in place between both feet to prevent it from moving with the rotation of the agitator. If the container also rotates, the paint will not be mixed properly, and more importantly, it may scatter, leading to accidents.
A further precaution is the paint agitator's cord. If the cord is left flapping while mixing, it can get caught in the mixing blade shaft, leading to an accident. Care should be taken to make sure that the cord is not caught in the mixer before stirring.
*Including some distributors, etc.
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