Tumbling-Media

manufacture of the finest mass finishing equipment and supplies in the marketplace.

Good Finish For Parts With Deburring Machines And Media

Deburring is the process of removing jagged edges or protrusions from parts, mostly wooden and metal parts. Deburring machines are used to accomplish the process of deburring. Primarily two types of deburring machines are used – tumbling or barrel machines and vibratory machines. Tumblers are used for mass finishing of parts. They can be used for wet as well as dry finishing. These systems are well suited for fast and efficient deburring of plastic and metal parts or components. There are models that are available in different sizes from compact bench models to big barrels that can be fixed on floors. Tumbling systems are very important deburring systems in use. They are typically used where heavy deburring is required. Barrels are ideal for heavy loads. Dry tumbling is used when delicate deburring is called for and produces a smooth finish. Wet barrelling is used for metal processing to remove excess material as well as to provide a polish.

Vibratory deburring machines are also used for mass finishing. They function by shaking or vibrating the processing vessel, which causes the finishing media and parts to scrape against each other thus accomplishing a deburr and producing a polish. These deburing machines are precise and can deburr even recesses in the parts and hence they are very well adapted for delicate and intricate components. They can also be used on large surfaces because they have very short strokes and high speeds. These machines can be automated quite easily compared to tumblers.

Blasting machines are another type of deburring machines in which media is blasted on to parts under high pressure thus creating a finishing action. Blasting machines are used to deburr hard to reach parts and also to clean parts of dust, grime, rust etc. There are also other deburring machines like gyra machines, centrifugal disks and spin finishing machines for specialized usage.

Finishing media are used in finishing systems to aid in the deburring process. Ceramic media is ideal for use with hard metals that need heavy cutting action. They are generally used for polishing and deburring – light, heavy, fast or super fast deburring. For applications that need small sized media, ceramic media is highly recommended. They come in pre formed shapes to suit different purposes. Cones, stars, triangles, cylinders etc are some of the shapes in ceramic media. These shapes ensure easy separation of parts and deburring of hard to reach areas. Ceramic media are long lasting and inexpensive. As they can be used for multiple requirements, they are the most commonly used in the mass finishing industry.

Ceramic media are made as a combination of silica, minerals and abrasive materials and are manufactured at very high temperatures thus producing hard ceramic media which are then cut to the desired length. The rougher deburring applications call for a ceramic media that has more density. By using more abrasive in the manufacturing, high density can be achieved. But high density means faster wear and tear; so they are used only rarely. Go to http://gravcollc.com/ for more information on deburring machines and media.

Posted 1 year, 3 months ago at 8:59 pm.

Add a comment

Obtaining A Great Finish With Finishing Compounds and Plastic Media


Finishing compounds come in 2 main varieties – wet compounds and dry compounds. There products for different purposes including cleaning, rust proofing, burnishing, colouring and ferrous cutting. These compounds also come in standard packaging sizes of 5 gallons and 55 gallons. Among the wet compounds, AQUA-2000 and A-400 are used for cleaning jobs; AR-614-L and AR-620 are ear marked for anti rust jobs; the BC series like BC-300 and BC-351 are used for burnishing parts; CLC series is used in cleaning; U-620 is used as all metal cleaner and inhibitor while U-2339 is used for acidic burnishing.

Dry finishing compounds (which are in powder form) are typically used in burnishing, colouring, cleaning and cutting. BC-311 produces heavy lather and is used in tumbling barrels for burnishing all kinds of equipment. CC series is used for colouring of high energy equipment to create a bright part; they can be set on zinc and aluminium. The D series is meant for cleaning purposes - D4 is an abrasive cleaner while D7 is an alkaline metal cleaner. The FGC series is used specifically for ferrous cutting. FGC-100 is a paste mixture with soap. It acts abrasive in suspension mode and is meant to be used where dust is a concern. FGC-131 is non-abrasive and is used in removing oil and grease from oily parts. The NFC series is used in non-ferrous cutting; they are mildly abrasive and alkaline in nature and can be used with any media type.

Plastic deburring media for use in finishing metals are available. The plastic media are used for faster cutting and fine finishing. The media are of high quality and are long lasting too. With a vast experience in the metal finishing industry a company can boast of being able to find a solution for any type of finishing requirements. Plastic media come in different shapes and varying sizes. Shapes include cones, TET – 3 sides, pyramids, stars, triangles, wedges and diamond shaped pyramids. Sizes range from tiny to more than 2 inches in height. The main types are standard plastic media and speciality synthetic plastic deburring media. They come in packaging sizes having 50 numbers each.

The Lusterwhite series are good for very low Ra finishes and provide excellent wearing. For good wear and pre plate finish on all metals, Superbrite series is used. Gravilon series provides excellent wear and pre plate finish; they have variants and come with and without zircon. Gravilite is used for fast cutting needs. Gravilox is used for fast cutting and matt finishing. For very fine, fast cutting and fine finishes on exclusive metals, the speciality synthetic plastic media is used. For further information on finishing media and compounds, log on to http://gravcollc.com/

Posted 1 year, 3 months ago at 7:01 pm.

Add a comment