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Tumbling media is any material that is used for modifying or shifting the look of a part – that is cleaning, polishing, smoothing parts and separating parts. Tumbling media are coarse in nature. Tumbling compounds are compounds that are used in the tumbling process as aids.

The tumbling media is also identified as finishing media as it is used to offer the final touches to parts. The parts to be polished or cleaned or separated are put into tumbling or vibratory machines along with the tumbling media. When the equipment start to run, the tumbling media and the parts rub adjacent to each other which supply an abrasive accomplishment. This act in turn gives the smoothing and polishing outcome. There are two types of tumbling media – natural and artificial. Natural tumbling media include corn cob media and walnut shells media. Corn cob grit is used as tumbling media as it has effective abrasive and cleaning properties. Walnut shells are also powdered to different grit sizes and are used in cleaning and polishing. The advantage of tumbling media is that they are bio degradable and hence are environment friendly. They are also tough and cost effective. They are typically used in tumbling processes where soft abrasive property is needed.

Artificial tumbling media includes plastic finishing media and ceramic media. Both come in preformed shapes and sizes. Depending on the requirement, the right material, shapes and sizes can be chosen. Plastic tumbling media is found to be ideal for metal removal, pre plated finishing, fast and heavy cutting. It is used successfully on metals like brass and aluminium which are soft metals. They are also ideally suited for use on stringy materials because they avert burrs rolling over into holes. Plastic media are first-rate for providing very smooth finishes without much shine. Ceramic tumbling media is suited for light as well as heavy deburring and in aggressive removing of hard metals. Ceramic media come in extremely small sizes and they work better than plastic media on heavy parts.

Tumbling compounds are practical in improving the effectiveness of tumbling media as they prevent glazing over. They also offer additional abrasiveness and help to uphold the metal colour of the parts being tumbled. They also help in imparting an anti rusting and anti corrosive properties to the parts apart from giving shiny and bright finish. They are very helpful while cleaning of parts – in de-scaling and heavy grease removal. They offer a medium that ensures that the cleaned grime does not get re-deposited on the parts. They also support in the deburring method and separating of parts. Tumbling compounds are also good for using with delicate parts as they act as good cushions.

Tumbling compounds might be dry or wet or creamy. They can be ph-balanced, acidic or alkaline in nature depending on the function they are projected to serve in the finishing process. The flow rate of the tumbling compounds has to be maintained in proportion to the volume of the tumbling media used in order to achieve optimum fin

Tumbling media is any material that is used for modifying or changing the look of a part – that is cleaning, polishing, smoothing parts and separating parts. Tumbling media are coarse in nature. Tumbling compounds are compounds that are used in the tumbling process as aids.

The tumbling media is also recognized as finishing media as it is used to offer the finishing touches to parts. The parts to be polished or cleaned or separated are put into tumbling or vibratory machines along with the tumbling media. When the equipment start to run, the tumbling media and the parts rub next to each other which provide an abrasive accomplishment. This act in turn gives the smoothing and polishing outcome. There are two types of tumbling media – natural and simulated. Natural tumbling media consist of corn cob media and walnut shells media. Corn cob grit is used as tumbling media as it has useful abrasive and cleaning properties. Walnut shells are also powdered to different grit sizes and are used in cleaning and polishing. The advantage of tumbling media is that they are bio degradable and hence are environment friendly. They are also durable and cost effective. They are typically used in tumbling processes where soft abrasive property is needed.

Artificial tumbling media includes plastic finishing media and ceramic media. Mutually come in preformed shapes and sizes. Depending on the necessity, the right material, shapes and sizes can be selected. Plastic tumbling media is establish to be ultimate for metal removal, pre plated finishing, fast and heavy cutting. It is used effectively on metals like brass and aluminium which are soft metals. They are also ideally suited for use on stringy materials because they prevent burrs rolling over into holes. Plastic media are good for providing very smooth finishes without much shine. Ceramic tumbling media is suited for light as well as heavy deburring and in aggressive removing of hard metals. Ceramic media come in very small sizes and they work better than plastic media on heavy parts.

Tumbling compounds are helpful in improving the efficiency of tumbling media as they prevent glazing over. They also provide additional abrasiveness and help to maintain the metal colour of the parts being tumbled. They also help in imparting an anti rusting and anti corrosive properties to the parts apart from giving shiny and bright finish. They are very useful while cleaning of parts – in de-scaling and heavy grease removal. They offer a medium that ensures that the cleaned grime does not get re-deposited on the parts. They also assist in the deburring procedure and separating of parts. Tumbling compounds are also good for using with delicate parts as they act as good cushions.

Tumbling compounds can be dry or wet or creamy. They could be ph-balanced, acidic or alkaline in nature depending on the purpose they are projected to serve in the finishing practice. The flow velocity of the tumbling compounds has to be maintained in proportion to the amount of the tumbling media used in order to reach optimum fin

Mass finishing refers to the finishing procedure on numerous parts simultaneously. Finishing involves the deburing, polishing, smoothing, cleaning and separating of parts. The finishing method is carried out in a tumbling or vibratory machine, with finishing media, finishing compounds and the parts to be mass finished thrown in collectively.

Depending upon the nature of the parts that call for mass finishing, the finishing machine, finishing media and finishing compounds should be selected. In tumbling machines, parts can be tumbled with or without media. These machines are well suitable for aggressive cutting and producing glistening polishes; they are good for working on edges and rounded corners. Vibratory machines are appropriate for shaking parts and media at a elevated rate of speed; they are secure for use on frail parts and these machines supply very smooth finishes even in parts with holes and deep recesses. Natural media like corn cob media and walnut shell media are used when a soft abrasive outcome is vital. For heavier abrasive needs, man made media like plastic and ceramic media can be used.

When common deburring has to be completed, ceramic media is very effective. Hard ceramic media are used for light deburring and polishing. Softer ceramic media that have more abrasive ingredients are used when more rapidly cutting is needed. If frail parts are subjected to mass finishing, plastic media can be used to give very smooth finishes without much shine. Because plastic media are much lighter compared to ceramic media, they do not hurt fragile parts. It is imperative to use the right quantity of media for the volume of parts being finished so that the parts remain safe. Finishing compounds are used to enhance the efficiency of the finishing media being used and to improve finishing cycle times. Compounds could be alkaline or acidic; they are very effective in de-greasing and de-scaling and they also help in increasing cutting speeds.

Vibratory finishing machines are used in mass finishing of parts. They comprise of tubs called finishing or processing tubs that are vibrated at high speeds. The parts to be finished are put into the tub along with finishing media and when the tub vibrates, the parts and media graze against each other. This abrasive action produces the deburring of parts. The cutting action that happens in a vibratory system is precise and thorough. Compounds particularly suited for vibratory systems can be used to provide better performance.

The vibratory finishing machines run at high speeds and very short strokes. So, they are powerful; yet, because of the short strokes, they do not place any undue stress on the parts. They can therefore be safely used on large parts like wing spans and landing struts. The vibratory finishing machines effortlessly dislodge material from holes and recesses in parts like bores and can work very fragile parts without causing any damage. The vibratory machines can be automated very easily – a full automation can be done for a finishing process that is sequential in nature. It can also be used as part of a large batch finishing process.