Sand Centrifugal Mixer Machine for Foundry Industry

Sand Centrifugal Mixer Machine for Foundry Industry - One step in the casting process is to make the molds. Shaped molds to form the foundry mold cavity. The most commonly used molds for metal casting are sand molds. Molding sand is typically composed of base, such as quartz sand and binders materials such as clay or bentonite. In addition, to improve the quality of the molding sand often added to other materials such as coal dust, sawdust, flour, etc. All mold materials were mixed using a mixer machines, the purpose of all the ingredients can be mixed uniformly. If the molding sand of the water content does not meet the standards, add water if necessary when the ingredients are mixed.

Sand mixer machine used in the foundry industry typically uses a wheel and blade type mixer. Wheel type usually called sand muller mixer is a mixer with two wheels moves the rotation and revolution. Blades types usually called sand centrifugal mixer is a mixer with blades as the sand mix. This article will explain the sand centrifugal mixer for foundry industry.

Construction of Sand Centrifugal Mixer Machine

Sand centrifugal mixer construction can be seen in the image below:

Construction of Sand Centrifugal Mixer Machine

Main sand centrifugal mixer component corresponds to the above construction, including:

1. Electric motor serves as the main driver of machine. 
2. V-Belt transmission serves to reduce the rotation while overcoming overload.
3. Gear Box, used to reduce the rotation of the blade with a large comparison.
4. Double Blade serves as a primary raw material mixture.

Centrifugal mixer concept

Mixing process occurs when raw materials are in the top of the rotating blades. The blade is angled approximately 45 degrees, so that when the centrifugal force of rotation and provide pull-up. The centrifugal force causes the material first expelled, bounced off the wall and towards the center. Upward force causes the raw material thrown up and down due to the gravity of the first material. The movement of raw materials continuously mixed raw materials uniformly.

Principle of Sand Centrifugal Mixer Machine

Sand Centrifugal Mixer Machine operates on the basis movement from the electric motor. Electric motors drive the knife through two transmission systems are v-belt and gear. The transmission system is capable of reducing the ball comparison 1/20 or reduces the rotation of the blade about 75 rpm. The value of the rotation of the blade causes a sufficiently large torque, thus providing a centrifugal force and an upward force sufficient for mixing the raw material to the thrust of the hopper.

Operations of Sand Centrifugal Mixer Machine

The operations of sand centrifugal mixer are: 

1. Prepared the raw materials to be mixed molding sand.
2. Pour the raw material in the hopper.
3. The amount of raw materials should not be greater than 3/4 of the contents of the hopper.
4. Turn on the electric motor,
5. Wait a few minutes until homogeneous commodities.
6. Prepare the tank and place it under the expenses of the funnel.
7. Open handle pass slowly until the load is initiated through a funnel.
8. Turn off the electric motor when all the molding sand is out.

That is a description about the Sand Centrifugal Mixer Machine for Foundry Industry. If you find misconceptions in this post, please provide the correction in the comment box.