RSG ceramic grinding media


RSG Ceramic Grinding Media

RSG ceramic grinding media is produced by mixing porcelain, kaolin,clay, river clay together with brown alumina oxide abrasives. The wet material is formed into desired shape (usually by extrusion and cutting) and then fired to vitrify. Fusion bonding is used to make some media. Such media are available in a wide range of shapes and sizes. Also, when the engineer selects the proper grade of abrasive, the correct proportion of abrasive to binder, and the most suitable binder, this media will adapt to a great variety of application, and workpieces.

Everything you need to know on Ceramic Tumbling Media

Ceramic tumbling media is one of the best general-purpose media. It is considered suitable for several different finishing applications, including deburring, polishing, cleaning and de-rusting. You can use it with workpieces of any composition or shape. However, it is best suited for hard metal such as stainless steel and plastic parts, particularly machine or cast parts that have rough tool marks.

This mass finishing material can be used from surface preparation, cleaning to removing marks left by the tool from machined components and parts. It is available in different materials, including tin oxide, silicon carbide, silicate, and aluminum oxide.

It has a relatively high density, which ensures incredible grinding and finishing performance on any workpiece.

ceramic media deburring

Ceramic Tumbling Media comes in different shapes

One distinctive characteristic of the tumbling media is that it is available in different shapes. This allows you to customize the cutting capabilities of the material to suit your needs.

The available shape includes ceramic tumbling ovals, diagonals, ball cones, triangles, pyramids, and wedges.

Applications of Ceramic Tumbling Media

Ceramic tumbling media comes in different shapes, sizes, and angles, which can decrease or increase its cutting ability. However, it is long-lasting and more effective because it is a bonded, formulated media.

People can use different recipes to meet various industrial applications. But the most commonly used type of ceramic tumbling media is brown corundum.  Other than the material of the abrasive, other factors can affect its performance. This includes grit shape and size, the compound, and the tumbling media size.

ceramic media deburring parts and separation

People use various cutting grades for different applications. These include light, medium, fast, and slow cutting. But the performance depends on the equipment used.

Usually, ceramic tumbling media with larger grain sizes provide fast cutting. However, it also leads to a dull surface after finishing. Ceramic tumbling media with small grit produces a low RA value surface finish.

Due to its high-density, it is usually a great choice when working with hard metals and heavy cutting applications. It can also be used for deburring applications that need quick, aggressive removal of the metal. They are more durable and heavier than most ceramic media types. For more intricate jobs or smaller parts, the best choice is precision ceramic tumbling media.

Aluminum machining parts before and after deburring

Advantages of ceramic media

  1. Ceramic tumbling media combines its relatively low purchasing cost and incredible longevity to make it the most cost-effective finishing solution.
  2. Ceramic tumbling media is available in different shapes, types, and sizes, which offer you incredible flexibility when looking for a material for an application that suits your needs. This helps in minimizing common issues like separation and lodging. It also makes it possible to process workpieces with slots, holes, components, or corners.
  3. Ceramic tumbling media offer greater control of how aggressive the cutting action is. You have the option to balance the desired longevity and durability of the material and the speed of the cutting. It comes in different abrasive grades from nonabrasive media to superfinishing media.
  4. Ceramic tumbling media has long wearability and high strength.
  5. Ceramic media Offer Particle size balancing – Small particles and large particles are combined, which will ensure that you have a variety of different sized materials inside.  If there were only large materials, there wouldn’t be many points to make contact as they tumble. The grit will perform better when it is stuck in between the media and material that needs finishing. The contact pressure enables the grit particles to scratch and makes the workpiece smooth.
  6. The best way to get a balanced load in the workpiece is by using a range of smaller pieces of rough material.
  7. Ceramic tumbling Media offer Cushioning -The cushioning helps in absorbing the impact of energy between the workpiece and the media. The media inside the workpiece will ensure that the debris of the workpiece doesn’t hit each one another.


The two types of materials that require cushioning include:

  1. Those that chip or bruise quickly, and this includes: glass, obsidian, and crystalline quartz (Rose quartz, banded amethyst, rock crystal, tiger’s eye, and aventurine are the common types of crystalline quartz.) These materials might be bruised or chipped when they hit each other. Having media for cushioning can significantly reduce the damage.
  2. Those that break easily by cleavage. This material includes Topaz, fluorite, moonstone, labradorite, amazonite, and orthoclase.
  3. Ceramic Tumbling Media Improve tumbling action -the improved tumbling action makes the workpiece tumble better. If one has a rough workpiece with a lot of flat pieces like trim-saw slabs or many angular pieces, they won’t tumble, but instead, slide. Having ceramic cylinders assist in getting them tumbling. The ceramic cylinders will act like roller bearings inside the tumbler barrel. They will get between angular and flat pieces of rough surfaces and facilitate movement. Mixing different ceramic media sizes will help in getting better results.
  4. Ceramic Tumbling Media acts as a Filler – as a filler, this helps in getting the barrel to its operating capacity. One of the crucial benefits of using ceramic media is that it acts as a filler. It replaces the lost volume of the workpiece during the medium and coarse grit of the tumbling process. A small part of the workpiece will be lost in the medium grit step. However, it’s crucial to have a ceramic media so that the barrel remains at a recommended tumbling level.

Ensure that the grill reaches all workpiece surfaces.

This ensures that there is grinding and polishing.

How long does the ceramic tumbling media last?

Ceramic tumbling media’s hardness is about 7+. Small media can only be used for a few cycles when they are used in all the steps of the tumbling. A Large ceramic tumbling media can last longer and then eventually turn into a small media.

The binder acts as a burnishing surface, and this works against rapid cutting.

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