Reclamation of sand is an important step in reducing material and disposal costs in a foundry. Utilizing General Kinematics proven VIBRA-MILL® attrition mill, foundries can successfully reclaim sand to 20 mesh with original grain size distribution and corresponding reduction in L.O.I. With proper addition of new sand, reclaimed material is clean and ready for new mold production without further attrition.

The VIBRA-MILL® can be fed in a steady controlled rate from a vibrating feeder or conveyor, belt conveyor, or by intermittent batches from front end loader, floor sweeper, etc., providing the batch does not exceed the volume of the VIBRA-MILL® tub.

The controlled vibration of the VIBRA-MILL® is applied so that the sand is subjected to agitation, tumbling, abrading, and grinding, and this combined action reduces the sand lumps to original grain size and distribution. During the course of the lump reduction, the fine sand grains move toward the rear of the tub where, when reduced to a specific size, they pass through a primary scalping screen and then across a secondary screen for final sizing. Provision for air separation of “fines” is incorporated into this secondary screen.

Foreign material such as sprue, core rods, and other items which will not pass through the primary screen are automatically purged for the mill during a “reject unloading cycle”. During this cycle, the direction of motion is reversed so that unwanted material discharges out the front of the mill through an air operated discharge gate.

GK’s VIBRA-MILL® is available in various configurations depending on your application. For more information about our family of VIBRA-MILL®S, click one of the links below:

Related GK News

general-kinematics-vibra-drum

The Difference Between Rotary and Vibratory Drum Technology (Which is best for your process?)

When it comes to choosing the optimal drum technology for your foundry, there are two basic options available: vibratory drums and rotary drums. Both technologies offer advantages in certain applications, so what factors should you consider in determining the best solution for your process?     Vibratory Drums   Vibratory drums come in two varieties: […]

Read More
material testing

General Kinematics’ Process Guarantee

  General Kinematics’ Vibratory Process Equipment is engineered for specific material and process objectives. A review of the process objectives with the end user enables GK Engineers to identify the most appropriate Vibratory Technology for the process. Product feed temperatures, moisture content, drying and cooling rates, temperature sensitivity, as well as particle size and shape […]

Read More
baumaChina

General Kinematics Attends baumaChina

The end of November marked General Kinematics attendance at baumaChina. Bauma is recognized as being the center stage for high-profile innovative technology. The event in China took place November 27th through 30th this year. GK along with GK representative CIBA, presented the STM-SCREEN™ Two-Mass Vibratory Screen, a popular unit in the Chinese Mining Market. The […]

Read More