Reliable Automatic Unloading Centrifugal Barrel Finishing Machine China
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Centrifugal barrel finishing machine Product Description:
CB Series Centrifugal barrel finishing machine with automatic discharge have the size between 30L to 320L. It is suitable for small jewelry parts as well as huge gear components.
Centrifugal barrel finishers are a high energy mass finishing machine. It succeeds a lot of finish jobs in a short time. High gravity forces from work chamber allow small media to access slots and cavities on parts. These machines are the most efficient and fastest tumbling machines that are supplied by Inovatec.
Either aggressive material removal or mirror polishing, CB series machine can achieve isotropic finish quickly. After finishing, the entire parts' surface is smooth and even in all directions, and it is hard to achieve by hand polishing.
The application includes pearl polishing machine, gear polishing and valve plate polishing
Feature:
- Digital timer control
- Adjustable speed control
- Forward and backward tumbling
- 4 fixed barrels set
- Media and parts mass automatic discharge.
Centrifugal Barrel Finishing Machine Technical Drawing:
Centrifugal Barrel Finishing Machine Technical Data:
| Centrifugal Barrel Finishing Machine |
Capacity |
Size |
Motor |
Weight |
Speed |
Hopper radius of gyration (mm) |
Hopper internal dimensions |
| (L) |
L×W×H(mm) |
(kw) |
(kg) |
(rpm) |
A+B+C |
| CB60 |
60 |
1310×1364×1584 |
4 |
800 |
0-160 |
283 |
196×110×394 |
| CB60X |
60 |
1570×1478×1642 |
4 |
850 |
0-160 |
310 |
196×110×394 |
| CB80 |
80 |
1440×1500×1760 |
5.5 |
1000 |
0-140 |
325 |
224×126×445 |
| CB80X |
80 |
1580×1660×1810 |
5.5 |
1100 |
0-140 |
350 |
224×126×445 |
| CB120 |
120 |
1610×1700×1950 |
5.5 |
1300 |
0-120 |
352 |
268×158×440 |
| CB160 |
160 |
1650×1870×1780 |
11 |
1650 |
0-103 |
382 |
282×167×578 |
| CB200 |
200 |
1650×1870×1780 |
11 |
1870 |
0-103 |
382 |
314×168×580 |
| CB320 |
320 |
1680×2200×1850 |
11 |
2800 |
0-88 |
446 |
371×340×600 |
Metal Surface Finishing Treatment Company introduction:
Vibratory Finishing Equipment Optional settings:
Definitive Guide for Centrifugal Barrel Finishing Machine
- What is the working principle of the Centrifugal Barrel Finishing Machine (CBFM)?
Generally, a centrifugal barrel finisher has four (4) separate barrels or drums affixed to the edge of a rotating holder (a turret wheel/shaft). When the machine is powered on, the turret wheel spins fully in one direction and each barrel rapidly completes a rotation in the opposite direction, thereby, generating a very high centrifugal force that is 15-30x larger than the gravitational force.
Figure 1: Working Principle
To this effect, a compressive force is induced which initiates a high pressure sliding action between the media, compound and the parts. This action helps to remove burrs and consequently, create a smooth, consistent, and high-grade finish in short cycle time (fast processing).
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The rotational movement of the centrifugal barrel finishing machine can be attributed to the attachment of a chain, timing belt or V-belt to its turret wheel and the midpoint of the four (4) barrels.
It is also possible to tweak the speed of the machine. The speed of polishing will determine the extent of finishing. In general, polishing achieved at a lower turret speed provides finer finishing, while high-speed polishing provides edge smoothing and aggressive deburring.
2. What is a Centrifugal Barrel Finishing Machine?
A centrifugal barrel finishing machine (CBFM) or harperizer machine is a specialized type of barrel tumbler machine which utilizes centrifugal force during its operation. This mass finishing equipment is relatively cheap, operates at a high speed and energy, and with a similar working principle as the Ferris wheel.
Figure 2: Centrifugal Barrel Finisher
Centrifugal barrel finishers are best suited for removal of heavy burrs and large parts that are not processable in a vibratory finishing machine. They also provide high-quality performance in rapid edge radiusing, burnishing, tumbling die-castings, and large deburring w/o media.
This machine is an industry workhorse and is suitable for metals such as titanium, brass, chrome, steel, aluminium and stainless steel. It is noteworthy that a centrifugal barrel finisher is not appropriate for plastic parts deburring because of the pliability of plastic.
The finishing process achieved with this equipment is also referred to as mass orbital barrel finishing. A CBFM smoothly enhances part surface with little or no impingement to the part.
3. What are the applications of a Centrifugal Barrel Finishing Machine?
A Centrifugal Barrel Finishing Machine is useful for several work-piece applications. These applications can be categorized as follows:
- Polishing
This is also referred to as burnishing. Polishing ensures that processed parts are shiny and attain a mirror-like description.
- Deburring
Deburring involves the removal of burrs and sharp edges on metal parts after machining. A typical example of deburring is the smoothening of round and sharp corners on metal pieces.
- Deflashing
Deflashing is quite similar to deburring as it also enhances the surface finishing of metals by smoothening them out. This process eliminates leftover machine lines from the metal cutting and milling process.
Depending on your surface finishing requirements, a certain work-piece may not require all this procedure to attain perfection.
- Why should you choose a Centrifugal Barrel Finishing Machine over other mass finishing options?
Centrifugal barrel finishers are known to provide excellent results when used for significant burrs and blending line removals. They also turn in top-notch surface finishing when utilized for polishing and burnishing.
When used under the appropriate working conditions, a Centrifugal Barrel Finishing machine can provide virtually all kinds and grades of surface finish without damaging the work-piece. This machine distinctively produces superb and precise finishing on fragile work-pieces.
The likelihood of parts gliding against each other is extremely low, making it a good choice for finishing operations. Turbine blades, high-grade surgical equipment and 3D printed work-pieces are all suitable for processing in the CBFM.
The CBFM also eliminates the need to manually separate media and parts by hand or the use of hand-finishing which slows down mass finishing processes. The elimination of manual processing by up to 95% has, in turn, spurred production rates and ROI.
When juxtaposed with other mass finishing options, the CBFM offers an all-encompassing consistency in term of quality, speed of operation, performance and job acceptance rate. This machine is also relatively cheap which makes it go-to equipment for most industries.
5. What types and grades of materials can be processed in a Centrifugal Barrel Finishing Machine?
The Centrifugal Barrel Finisher generates a lot of heat and force (15-30 times larger than gravitational force) while running. For this reason, the machine is best suited for processing metal parts.
Figure 3: Processable Materials
Although it could be used for selected plastic and glass applications.
6. Is it possible to have multiple parts running per barrel in a CBFM?
Of course, yes, it is possible to put multiple parts in one barrel, depending on material type and size. If it is required that the parts must not come in contact with each other, a barrel divider can be incorporated into our machine.
7. What will be the cost implication of processing parts with the CBFM?
The cost of processing parts using a Centrifugal Barrel Finishing machine will, of course, be project dependent. At Inovatec, we provide our customers with sample processing and testing services, and we encourage you to key into this.
It might be impossible to estimate the cost implication of processing a certain work-piece except it has actually been sampled. We have a sample processing form that you can fill out or if you like, you can reach over the phone to arrange for a test.
We will gladly receive your samples, process a few of them, and give you a detailed process report and cost analysis.
8. What is wet barrel finishing and dry barrel finishing in a Centrifugal Barrel Finishing Machine?
Figure 4: Wet and Dry Barrel Finishing
- Wet Barrel Finishing
This is a batch system that offers radii formation, burr removals and surface improvements by polishing parts with the use of compound agent or water as the case may be. Wet processing or wet barrel finishing is also suitable for the removal of excess materials on a work-piece. A wet barrel finisher may also be useful in dry tumbling applications.
- Dry Barrel Finishing
This is also a batch system that is suitable for the removal of excess materials on a work-piece but without the use of liquid agents. Dry barrel finishing is best for processing delicate work-piece that may become damaged if wet processing is used. This method provides a uniform, high-grade and smoother finishing.
9. How do you achieve the best possible finishing when using a Centrifugal Barrel Finishing Machine?
Imploring best practices will ensure that you get the maximum achievable machine efficiency. These practices include:
- Ensure Machine Balance
A typical CBFM has four (4) separate barrels or drums affixed to the edge of a rotating holder (a turret wheel/shaft). As practicable as possible, ensure that at no point in time should only one barrel be loaded during a finishing cycle.
Loading a single barrel will put pressure on the machine bearings and ultimately damage them. If you must use 1 or 3 barrels at all cost, opposite barrels can be rationally counter-balanced by filling them with water.
- Avoid Parts Overload
Overloading the barrels will result in parts abrading each other which can cause damage to them. For sensitive parts, barrel dividers can be used to address part-on-part contact. The part-to-media rationing must also held sacrosanct - appropriate cleaning compound and adequate amount of water should be used at all times.
- Refrain from Protracted Cycles
While in operation, a centrifugal barrel finishing machine generates a large amount of heat within each of its barrels. The heat levels need to be kept in check for safety concerns, likewise, its impact on the finishing process.
The notable quantity of heat generated while using the CBFM makes longer cycle times undesirable. A typical finishing cycle for most parts takes between 5-15 minutes, cycles taking about an hour to complete are considered protracted and not recommended.
- Add Cleaning Compounds
Cleaning compounds are not only meant to cater to metal parts, but the tumbling media also requires them. Compounds ensure lubricity which keeps the tumbling media pores open. Without cleaning compounds, media pores may become covered and when this happens, metal parts finishing turn out poor.
- Handling Flat Parts
Flat work-pieces present the toughest challenge for a CBFM because they tend to attach themselves to the wall of the barrels, thereby, causing partial deburring. To resolve this, glass beads must be added to the finishing process to coat the work-pieces and prevent them from sticking to each other and the barrels.
- The Requirement for Matte Finishing
To achieve satin or matte finishing, add Aluminium Oxide (Al2O3) blasting media to the barrel finishing process. The resulting work-piece, instead of turning out shiny, will come out matte.
- Always Clear Sludge
Ensure that you always get rid of sludge in the designated tanks to reduce mess. Before removing sludge with a shovel, firstly drain out water, and then use horse bedding to absorbs the remaining liquid in the tank. This ensures that the sludge removal process is less water-laden and easier.
10. What are the common options for a Centrifugal Barrel Finishing Machine?
A Centrifugal Barrel Finishing Machine is available with the following option:
- Barrel Dividers
Centrifugal Barrel Finishing Machine embedded with barrel dividers eases the process of separating each barrel/drum into smaller units.
Barrel dividers are proven to prevent part-on-part impingement and eventual damage to parts.
- Sludge Tanks and Processing Table
Sludge tanks and processing tables are common with smaller Centrifugal Barrel Finishing Machines. They are used to hold down sediments in the tumbling process.
The cascading mechanism of the CBFM holds the sludge in place, while water is flushed out using sump pumps. However, sludge tanks have to be cleaned regularly because of sludge build-up in the tanks during the finishing process.
- Media and Part Separator
This is a common option with larger centrifugal barrel finishing systems. The media and part separator help to separate metal parts from the media.
Figure 6: Media and Part Separator
Part-media separation is achieved using a vibratory screen of different sizes depending on the size of the parts and tumbling media. Without separators, hand-picking of parts will have to be employed which can be time-consuming for smaller parts.
Other available options include centrifugal barrel finishers with speed converter, integrated process timer, process cycle alarm, tilt barrels with an inclination of up to 8 degrees, and fixed or removable barrels.
11. Which abrasive media is best suited for use in a Centrifugal Barrel Finishing Machine?
Several types of abrasive media find usefulness in the centrifugal barrel finishing process. Some of the widely utilized media include Ceramic Media, Organic Media (corn cob, walnut shells, etc.), Porcelain Media, Steel Media, Plastic Media etc.
In terms of media shapes, common shape choices include Tetrahedrons, Cones, Spheres, Cylinders, Wedges, Pyramids, etc.
Making the wrong choice of media can result in media lodgments and damage to parts. In general, light-coloured media are more suited for mild cutting while dark-coloured media cuts or deburrs faster.
12. Wet or Dry processing - Which should you use?
This will be a function of your process requirement and the applicability of both finishing scenarios. If you're handling parts that do not require liquid contacts or delicate parts liable to damage in a wet barrel finisher, your obvious choice would be dry processing. If otherwise, wet processing will be just fine.
13. What industries benefits from the versatility of the Centrifugal Barrel Finishing Machine?
The CBFM is a versatile metal finishing equipment, and it finds application in a variety of industries. These industries include:
- Automotive Industry
The Centrifugal Barrel Finishing Machine is applicable in the automotive industry for metal part surface smoothing such as polishing gears, engine heads and fasteners.
Figure 8: Gear Polishing
- Medicare Industry
In the medical industry, high-quality and consistent finishing is expected of metal equipment surfaces, especially those with multiplex geometries. The Centrifugal Barrel Finishing Machine ensures that these criteria are always met by offering rapid deburring and polishing performance.
The CBFM is used for processing cobalt chrome implants, surgical parts, titanium, stainless steel, dental tools and dental implants.
Figure 9: Dental Implants
- General-Purpose Job Shops
For high performance, cost-effective and rapid metal parts polishing and deburring operation, general-purpose machine shops turn to a centrifugal barrel finishing machine.
- Defense and Aerospace
High-end aerospace metal parts often require perfect smoothing, and since hand polishing and deburring is not viable in this case, hence, the use of a centrifugal barrel finishing machine. Turbine blades and jet engines are examples of parts regularly processed with the CBFM.
Figure 10: Turbine Blades
14. By How Much Does the CBFM eliminate manual labour?
A centrifugal barrel finishing machine eliminates manual labour in the defect identification process, and the polishing and deburring process by up to 95%. Manual labour yield 80% job acceptance rate at best and the surface finishing achieved through this method is not consistent, neither is it isotropic.
Instead of having to manually remove burrs and conduct defect identification using a microscope, utilizing a CBFM saves you all that cost on manpower. The maximal reduction of hand-sorting dramatically spurs production rate, increases ROI and ensures quality and consistency.
Utilizing a CBFM helps to inhibit the occurrence of repetitive motion disorders associated with manual labour (polishing and deburring by hand), thereby, contributing to workplace safety. The centrifugal barrel finishing machine is efficient and ergonomic to work with. Despite the fact that it requires each barrel to be manually loaded, its high-intensity mechanism compensates for the labour.
15. What designs of a Centrifugal Barrel Finishing Machine are available for purchase?
At Inovatec, our Centrifugal Barrel Finishing Machine designs include the following:
- Centrifugal Barrel Finishing Machine with Auto-Unloading
This machine is in the CB series and it operates at high energy. It is most ideal for achieving a homogeneous and uniform surface finishing.
It is best suited for bulky gear component and small jewellery work-pieces. This machine's capacity is between 30-320L.
- Centrifugal Barrel Finishing Machine with Removable Barrels
The CBFM with removable barrels has a compact design that is best suited for rubbers, small parts, dental parts, rubber, etc. This machine's capacity is between 30-36L.
- Centrifugal Barrel Finishing Machine with Tilt Barrels
This machine is most ideal for work-piece with recesses, deep slots and holes.
- CB40 Centrifugal Barrel Finishing Machine with 48 Barrels
This is generally regarded as one of the most efficient finishing machines. It boasts a compact design, small footprint, and it features 48 small and removable barrels.
Figure 14: CB40 with 48 Barrels
It is best for delicate parts and can also be used for aggressive removal of materials of mirror polishing. This machine's capacity is 40L.
- Is there an integrated process timer on a Centrifugal Barrel Finishing Machine?
Yes, there is an integrated process timer that allows operators to calculate and set the appropriate running time per cycle.
- How do you know the size of the Centrifugal Barrel Finishing Machine that is suitable for your application?
Clearly, the size of the CBFM to be used will be dependent on the surface requirements, bulkiness, and production volume of the parts to be processed.
For jewellery work-piece, an individualistic and simultaneous approach will be required to efficiently polish them. For this use-case, a CB40 centrifugal barrel finisher is utilized.
For deburring 3D printed work-pieces, our 320-litre centrifugal barrel finishing machine will provide the best finishing. And for dental parts, the detachable barrel CBFM design is applicable.
18. What components and parts make up a Centrifugal Barrel Finishing Machine?
A typical Centrifugal Barrel Finisher is made up for various interconnected parts including four (4) barrels, turret, tub wheel, chains, timing belt or V-belt, sprockets, bearing, half axis and spindle, electrical components and other accessories.
To function effectively, a Centrifugal Barrel Finishing Machine requires the following:
The Media: This substance is energized by the barrel finisher and it glides against the work-piece to produce the desired finishing requirements. The movement of the abrasive substance (media) is as a result of of the internally generated centrifugal force.
Compound Agent: A compound agent could be a wet or dry substance that enhances the part finishing process when introduced into the Centrifugal Barrel Finishing Machine. Compound agents help to subside or completely annihilate the effects of corrosion on the media and the machine.
19. After placing an order for your Centrifugal Barrel Finishing Machine, how do you confirm the order?
To confirm your order or make specific requirements, the following steps are advised:
- Confirm the model, capacity and machine size.
- Confirm the electric power rating of the machine.
- Make a choice of colour according to the Pantone or RAL codes.
- Confirm the machine design. Are the barrels removable or fixed?
- If by design, the machine barrels are movable, confirm whether you'll require additional barrels.
- Should you require a tilt barrel, separator or other optional devices, kindly notify us.
If you have other special requirements or your order does not meet your requirements, kindly reach out to us.
20. How often will maintenance be required for a Centrifugal Barrel Finishing Machine?
At the least, maintenance must be carried out daily if need be to preserve the performance of the machine. Check for unusual noises, barrel leakages, and ensure that bearings other moving points are greased every fortnight. Additionally, fasteners should be tightened every 10-14 days.
Addition of Grease to Bearings
21. What can go wrong with a Centrifugal Barrel Finishing Machine?
Like most electronic equipment, mishandling a Centrifugal Barrel Finisher can result in a series of complications. A typical example of what can go wrong is the centrifugal force tuning. If an operator fails to tune the machine to an energy level that suits the work-piece, the whole process could become a failure.
22. Can Isotropic finishing be achieved with a Centrifugal Barrel Finishing Machine?
Isotropic finishing describes a homogeneous surface finishing with uniformity in all directions and it is mostly attributed to the CBF process. After an isotropic finishing process, peaks, machining marks and burrs are efficiently removed from the work-piece, of course, without compromising surface uniformity.
The isotropic finishing process entails multi-step processing, reduction of undesirable surface skewness, tweaking surface textures and patterns, and removal of residual tensile stress. All of these processes helps to ensure the durability, fineness and longevity of the work-piece.
So, can isotropic finishing be achieved with a Centrifugal Barrel Finishing machine?
The obvious answer is Yes.
FAQ:
Q: How is Inovatec machinery brand?
Inovatec Machinery is famous Top 3 brand mass finishing equipment and consumables manufacturer of China, has:
- 25 years: vibratory finishing machines and tumbling media manufacturer experience.
- 20000 square meters factory
-2 year warranty
Q: What Certifications do you have?
ISO9001, CE, certifications etc. 100% quality check, and testing before shipment.
Q: What is Inovatec Machinery equipment warranty?
2 year warranty for all Inovatec Machinery equipment
Lifetime maintenance will be provided after the 2 year warranty period expires.
Q: How you guarantee tumbling media quality?
We make quality tracking from raw material until quality check before shipment. We keep record of quality test including wearing and cutting.
For bulk and OEM order, we follow your testing methods and keep track of wearing and cutting. If the quality does not meet the standard, we will not make the shipment.
Q: What is your Payment method?
Accept payment via T/T (Bank transfer), Western Union, Money Gram, and PayPal;
Accept L/C at sight (bulk order).
Q: What is your Minimum order amount?
For machine minimum order is 1 PCS. For tumbling media minimum order is 1000kg or 2000 lbs as one pallet.
You can ship less amount of media if ship with the machine.
Sample order is allowed to ship less amount of tumbling media
Q: What is your way of packaging?
Fermentation wooden pallets for media, 1000kg per pallet, 25kg/plastic bag
Customize packaging and logo printing is available for discuss
Wooden box for equipment and compound
Q: How long is your production time?
15 working days for sample order;
20-25 working days for bulk order.
Emergency order can be fulfilled in a week
Q: What is the Shipping Way?
20-30 days by sea to your nearest seaport
2-5 days by air to your nearest airport
3-5 days by express to your doorstep
Q: What is the nearest Port:?
Shanghai, Ningbo and Yiwu are the closest port.
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