The Method of Vibratory Finishing
In vibratory finishing equipment, materials go into a bowl or tub, and the entire load shakes all at once. This movement causes the media to rotate or move up and down within a tub. The parts and media rub against each other to achieve the surface finishing objective. The friction in a vibratory system occurs with every pulse of vibration. Vibratory finishing works best for large and small parts in order to create a smoother finish.
What is a Vibratory Machine?
A vibratory tumbler, trough or bowl is the equipment used in a vibratory finishing process and is one of the most common methods in mass finishing. This finishing process is to clean, deburr, descale and polish workpieces. It can also be used as a surface preparation step to enhance the bonding of coating, plating, and adhesive materials to the workpiece. The process of a vibratory tumbler involves placing workpieces and parts inside a tub filled with shaped pellets of media and then applying a vibration force to all the tub´s contents. Sufficient vibration force is applied by the motor. During the process, a finishing chemical can be added to the tub.
The machine vibrates and rotates causing the media to rub against metal parts. The friction from the media and metals removes imperfections, scales or rust, and polishes the metal. The barrel grinds with greater force than a vibratory finishing machine. In Barrel tumblers, the deburring only happens in the slide area of the barrel.
Types of Finishing Media
Media is the hard ingredient added into the tumbler to prevent parts from just banging together. Different media has different properties.
- Steel Media: heavy deburring, shining, polishing, and burnishing metal, plastic, or ceramic parts.
- Plastic Media: great at finishing delicate parts in a process that does not involve excess wearing of work parts. Used for general metal deburring, precision deburring, polishing and burnishing. This type of media is used on softer metals such as aluminium or brass and on threaded parts.
- Ceramic Media: used for heavy, light and when fast deburring is needed. This type of media is good for heavy, and hard metals such as steel, and to remove rust on parts. Also used for general purpose polishing. Plastic, steel, stainless steel and aluminium parts are often polished using ceramic media.
- Organic Media: walnut shells can be used for medium to light deburring and for light finishing and polishing. Corn cob is used when finishing some metal parts because of its ability to absorb surface oils on the parts. Organic media is the natural, and safer way for the environment as they are biodegradable, durable and reusable.
Size and Shape of Media
From cylinders and balls to pyramids and sharp-edged stars, finishing media comes in many varieties. The shape of the parts being finished will determine the shape and size needed for finishing media.
- Round, oval and cylindrical: preferred for general use, and have lower chipping rates.
- Triangles, arrowheads and Tri-Star shapes: great for finishing complex parts with hard-to-reach sections. They also have a higher wear rate and are more susceptible to chipping.
- Small media: has more contact with the component surface area than larger materials and produces a smoother, more attractive surface. Production times are longer for small media polishing.
- Large media: Lends itself to aggressive grinding. Provides rapid removal of burs and is also effective for sharp edges.
Types of Vibratory Finishing Equipment
- Vibratory Circular Bowls: Designed to process small to medium sized components
- Vibratory Troughs: Designed to process long and delicate components
- Maize Dryers: Excellent drying abilities and heating system
- Centrifugal Disc Finishers: Designed to aggressively process small robust components, it has a short process time of deburring polishing of small and medium work pieces.
- Centrifugal Dryers: Drying metal and plastic arts by centrifugal force & hot air
- Floor Separation Units: Floor mounted vibration decks with interchangeable screens
- Bench Top Vibratory Bowls: Suitable for processing small batches
Benefits of Vibratory Finishing
- Vibratory systems produce a smoother finish as their action is more like filing and they do it more quickly.
- A vibratory finishing machine can cut inside a metal part and reach every area the selected media can get into.
- The system can be automatic as they are better for big and delicate parts; this reduces labour costs
- A better option for finishing very large or delicate parts.
- Produce finer results with less wear on parts.
- Increases durability and lifespan of the part.
Rileys Vibratory Equipment
At Riley Surface World, we have a variety of vibratory bowls, maize dryers, floor separation unites, and bench top vibratory bowls to suit your needs; the variety allows you to choose from smaller to larger components and low to high volume of batches.
Walther Trowal Magnetic Conveyor / Seperator
If your work pieces and abrasive media are roughly similar in size, then the external magnetic separation units from Trowal could be the ideal solution for precisely separating parts. This saves both time and money over manually screening your parts and media once it has left the system.
- Stock No
- MB770
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Walther Trowal Electro - Magnetic separator MS225 BL3400
- Year of Manufacture
- 1995
- Capacity
- Track 200mm wide
- Type
- Electro-magnetic mag and de-mag
- Other Info
- Height adjustable between 1300 and 1500m
- Condition
- Seen working by RSW, Good Condition
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
Walther Trowal Complete Mass Finishing Vibratory Start to Finish Processing Cell
A Walther Trowal, four stage finishing process comprising of a loading tipper, vibratory finishing bowl, magnetic transfer conveyor and rotating continuous parts dryer.
- Stock No
- VA2172
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Walther Trowal CD600 PN + Load Unload and Dry
- Year of Manufacture
- 1995
- Capacity
- 600L
- Type
- Continuous Automatic
- Other Info
- Load, Wet Process, Separate, Through Dry
- Location
- Rolls Royce Stores Unit 6
- Sold As Seen Price [?]
- £ Login or Register for price.
Walther Trowal CA650 Vibratory Bowl
A Walther Trowal, three stage mass finishing cell / process comprising of a loading tipper, large vibratory helical finishing bowl and rotating continuous 3000Kg's/ Hr continuous parts rotary dryer. Electrical control panel included
- Stock No
- VA2173
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Walther Trowal CA650
- Year of Manufacture
- 1978
- Capacity
- 650Litre
- Type
- Vibratory Bowl
- Other Info
- High Capacity Continuous Finishing Cell
- Condition
- From a working environment
- Sold As Seen Price [?]
- £ Login or Register for price.
Walther Trowal Vibratory Trough with Acoustic Booth, Conveyor, Separator, Walkways, Control and Compound Dosing
A Walther Trowal manufactured VN 1200 rumbler, housed inside an acoustic booth. A Danfoss frequency convertor allows vibration speed control, this package comes with a belt conveyor and dosing pump.
- Stock No
- VA2181S
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Walther Trowal VN1206
- Year of Manufacture
- 1991
- Capacity
- 1200L / 1700 x 800 x 1000mm Deep
- Type
- Vibratory Trough
- Other Info
- Unload Media Conveyed to separation deck
- Condition
- From a working environment, Good Condition
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
Walther Trowal DLT4 Continuous Rotary Drum High Component Volume Maize Dryer
This second hand Walther Trowal DLT4 parts dryer is for the drying of mass produced parts on a continuous basis. Ideally suited as a secondary process after mass parts finishing in vibratory and high energy systems.
- Stock No
- VA2186J
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Walther Trowal DLT.4SM
- Year of Manufacture
- 1987
- Capacity
- 1,000 (kg/h)
- Type
- Continuous parts dryer
- Other Info
- High throughput machine
- Condition
- From a working environment, Excellent Condition, Current Model
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
Rollwasch SmartLine Round Bowl Vibratory Machine
The Wheelabrator Vibro RVS-5 vibratory bowl with separation and unload is designed for processing medium size components and higher volume batches, as well as prototypes. Well suited for processing metallic components and additive manufactured 3D printed components alike.
- Stock No
- VB2199
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Rollwasch RVS-5
- Year of Manufacture
- 2017
- Capacity
- 550 Litres gross, 350 Litres net
- Type
- Bowl with separator
- Other Info
- Footprint 2100 x 3500 x 3000 mm
- Condition
- Seen working by RSW, Ex demonstration, Current Model
- Availability
- Available for immediate collection
- Sold As Seen Price [?]
- £ Login or Register for price.
Acton Waste Water Sludge Separation / Treatment Facility with Centrifuge.
Designed for vibratory surface finishing machines, this settlement tank with centrifuge recycles the process water through the system filtering out the sediment and impurities, returning the clean water to the process for re-use. Sediment is collected in the centrifuge inner chamber lining which is swapped for cleaning and reduced downtime.
- Stock No
- VB2204
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Acton A 800 Batch Centrifuge
- Year of Manufacture
- 2016
- Capacity
- Tank ~ 280L : Centrifuge ~ 100L
- Type
- High Speed Sludge Centrifugal Separator.
- Other Info
- 280L Stainless Steel Holding Mixing Tank
- Condition
- Good Condition, Seen powered at RSW
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
Walther Trowal CA340 Vibratory Bowl
The CA340 is a cast poly lined 350 ltr capacity overlapping helical vibratory bowl. The "Circlon" CA bowl is an automatic vibratory process, and with its spiral process channel design which minimises damage and scratches to the components
- Stock No
- VW1159
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Walther Trowal CA 340A
- Year of Manufacture
- OCT/96
- Capacity
- 340 ltr
- Type
- Helical vibratory bowl
- Other Info
- Premier design and build
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
Abrafin Tornado 30 Litre Bench Bowl Vibrator
Tornado 30 Litre Bench Bowl Vibrator. This 30 Litre bowl utilises lightwork construction to ensure maximum power transfer into useful work. This versatile and flexible machine enables you to cope with a wide range of applications.
- Stock No
- VZ1263
- Category
- Vibratory Deburring & Polishing Machines
- Model
- Abrafin Tornado
- Capacity
- 30 Litres
- Condition
- Seen working by RSW, Seen powered at RSW
- Sold As Seen Price [?]
- £ Login or Register for price.
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