4" inch HT Alo flap discs with updated flaps' size.

4" inch HT Alo flap discs with updated flaps' size.
*Updated flaps' size and reduce the waste of center area flaps.
*7 Layers fiber backing provide MAX safety
*Auto machine assure best balance performance
*Colorful packing ( 10pcs/Inner box and 200pcs/CTN)
*Most competitive price due to huge production capacity

Abrasives flap disc

Mr.Eric Lee
export.bsabrasives@gmail.com // skype: eric.bsabrasives
Whatsapp:+8615919141462 // Wechat: bsabrasives

Blueshark Flexible Flap Discs - Ideal for corner grinding & finishing.

This style flap discs really high " flexible" performance due to below factors:

*Less flap quantity than normal flap discs - only 45pcs or 60pcs flaps with bigger size.
*Small backings - allowed more " flexible" ability for each flaps
*Special flaps arrangement angle

From the photo , you can see the super flexible grinding performance and result the " side" grinding surface which can let you easy attach the inner surface of the angle steel.

                                                                                                                                                                                               welcome visit http://www.abrasives-wheel.com/products_show/en/abrasives-radial-flap-discs-260.html

Grinding and Polishing in one step - That's Flap Discs !!!

      At one time, grinding wheels were the primary tools used for material removal and resin fiber discs provided the finishing in a second step. but now days more and more customer prefer using the flap discs as it's can do the grinding and polishing works in one step - save much you time and abrasives cost!!!

     All of BLUESHARK zirconia flap discs are made with premium zirconia alumina grain for fast stock removal and have a long life 10-15 times longer than fiber discs. The flap disc offers cooler grinding and finishing in one step with low noise and dusts.  Also very little surface pressure is needed when using  flap discs.

Try Blueshark professional flap discs and you will really find something !!!

BLUESHARK Zirconia Flap Disc is your best choice for universal matching tasks with very high stock removal rates and heavy-duty use. VSM, NORTON, KLINGSPOR, etc sanding papers flap discs available according to customers' professional requirements.  The "DOUBLE-BLADE" style flap discs blades specially arranger and let the work-piece's grits easy fly away through the bigger gaps between each " DOUBLE-BLADE" units.   

          

1) APPLICATIONS: 
For grinding tasks such as weld seam dressing on planar surface,suitable for duty deburing and beveling work on stainless and high temperature steels, also suitable for deburring and chamfering edges. 

2) ADVANTAGES:
*Very high stock removal rate
*Very little surface pressure required.
*Very easy-grinding ability
*Reduce the work-piece surface temperature

For more details, welcome visit http://www.abrasives-wheel.com

Some Photos of Blueshark Flap Discs

I taken some photos of ours flap discs last week. hope you will enjoy it.

Blueshark Ceramic Flap Discs Brief Video

BLUESHARK innovative Ceramic Flap Disc is your best choice when grinding stainless steel, titanium, inconel, and other hard metals.The ceramic flap discs using life much longer with " Super-Cooling" grinding ability due to the ceramic grains has a self-sharpening formula.Continuous regeneration of new grain cutting edges over the whole grinding time guarantees consistent surface roughness.

1) APPLICATIONS: Ideal for hard steels including stainless steel. Use for weld blending, light-medium grinding and surface cleaning. High powered angle grinders recommended.

2) ADVANTAGES:
*Extremely high, specific stock removal rate
*Consistent surface roughness
*Very aggressive with less pressure needed
*Fewer disc changes required due to long life
*Super cooling grinding protect work-piece well 

3) SPECIFICATION:

 T27-FLAT TYPE                                    

ORDER NO               SIZE                GRIT                   TYPE               QTY/BOX                  

27CA11522              115x22.2          G40~120#             T27 Flat               10pcs

27CA12522              125x22.2          G40~120#             T27 Flat               10pcs

27CA15022              150x22.2          G40~120#             T27 Flat               10pcs

27CA18022              180x22.2          G40~120#             T27 Flat               10pcs            

                                                                                                               

 T29-CONICAL TYPE                            

ORDER NO               SIZE                GRIT                   TYPE               QTY/BOX                   

29CA11522              115x22.2          G40~120#             T29 Conical            10pcs

29CA12522              125x22.2          G40~120#             T29 Conical            10pcs

29CA15022              150x22.2          G40~120#             T29 Conical            10pcs

29CA18022              180x22.2          G40~120#             T29 Conical            10pcs            

                                                                                                                 

4) ADDITIONAL INFORMATION: 

a) BLUESHARK produce flap discs with different backing plate:

*Fiberglass backing plate - Most popular and it's can reduce vibration and is consumed together with the flaps. High strenghth with light weight.
*Plastic backing plate- With very nice lookings and is trimmable to increasing service life. The ABS plastic backing with very high strength and supply mas safe working performance.
*Nylon - Very familiar with plastic backings but with more light weight.
*Metal HUBS: provides extra high strength and rigid support as needed and normally using for heavy task . Also it can be recycled. 

b) 100% Germany original ceramic abrasives materials. 

c) Grit size recommendation

    40#--Aluminum ,Unalloyed and low-alloy steels,low-strength stainless steel

    60#--High-alloy,stainless steel,high-temperature and heat-treated steels

    80#--High-temperature alloys

   120#--For especially smooth steel finishes(refine polishing)    

d) Best working angles

     (15~30')                               (0~15')

For best performance , keep 15~30' when grinding and 0~15' while polishing & finishing.    

e) If using flap discs replace fiber discs workings, you should choose one grade coarse grit size. Such like you should using 80# flap discs if normally using 60# fiber discs.  

How to choose correct flap discs ?

 

As well known, there are many style flap discs in the market nowdays due to the non-copy advantages such like: lighter weight, easy control, less vibration & dust, grinding, blending and finishing with one product, etc . Absolutely we can take max benefits afforded by flap discs If understanding well all the variables and how they apply to your grinding & polishing workings.

BLUESHARK is professional manufacturer of flap discs with more than ten years experiences, we understanding and control every step from the sanding paper selection to LAB testing. Below is the 5 important factors for choosing the right one.

SHAPE --> ABRASIVES GRIT --> GRIT SIZE --> BACKINGS MATERIALS --> FLAPS' DENSITY

1) FLAP DISC SHAPE

Flap discs are used mostly on angle grinders and designed with a backings-support which allows working to be done on the flaps-surface. 

        a) Type 29- Conical Style  

This type with angled flaps and may be used on both contoured and edge work. The angled flaps  provides max attaching area between abrasives with work-pieces and best choice for aggressive stock removal.  

       b) Type 27 - Flat Style 

This style ideal for finishing and mainly used on flat surfaces. They are the best choice for blending and smooth finishing.

2) ABRASIVE GRIT

Here the abrasives grit means the kinds coated to the flaps, there are mainly four abrasive types:
a)Aluminum Oxide – recommended for smaller jobs where a consistent, low cost product is needed. 
b)Zirconia Alumina – excellent cut rate to cost ratio and good choice on carbon/mild steel applications.
c)Ceramic Alumina – latest innovative abrasives with fastest cutting as well as the best utilization of the whole abrasive grains. 
d)Silicon Carbide - Universally blending, cleaning, and finishing for concrete, stone, fiberglass and other nonferrous materials (brass, bronze and aluminum, etc.) 


3) GRIT SIZE
Different grit size suitable for different applications and requirements.  the below table is a general guide.

4) BACKING-PLATE MATERIAL

The backing plate which provides stability during operation as well as flaps-combination.There are three different material types:
a)Fiberglass backing plates -  most popular material because of its high strength and light weight. It's also can absorb vibration and most important is - they are consumed in same steps with the flaps. 
 b)Plastic backing plates -  becoming more popular today due to some conformability as well as being trimmable - which allows max lifespan especially for blending and finishing. Also now days many innovative style plastic backings used such like " Spin-on" for quick change, " Radial-Ribbon" for super-cooling-stystem, etc. Anyway, the plastic backings will become more popular in future as easier processed to any shape.    
c)Metal or Aluminum backing plates - good in applications demanding extra high strength and high rigid support and can be recycled. This style normally using on Silicon Carbide flap discs.

5) ABRASIVE FLAP DENSITIES

Each flaps size and total quantity of the flaps of flap discs means " Density",  it's can be adjusted according to various applications. It's not absolutely more flaps with better performance. 

Above is the outcome of testing between Blueshark TURBO & normal density line with grinding 10 minutes of stainless steel #304. The both flap discs with 40# grit size. General saying, more flaps more lifespan, less flaps less heating. BLUESHARK supply different density flap discs to meet all of your requirements, also the customer can specify the flaps size and quantity if needed. 

Now maybe you got a general idea how to choosing correct flap discs, if still any question or need more details, welcome Contact us  and we will try our best down your grinding cost!