These are your frequently asked questions. Choose from these topics to view the answers. For further queries, please email us at inquiry@tailin.net.

1. What is the Standard Marking System of TAILIN WHEELS?
2. What are the common applications of abrasive grinding wheel?
3. What is GRADE or HARDNESS?
4. What is a BOND?
5. What is GRIT SIZE?

What is the Standard Marking System of  TAILIN WHEELS? [^]

 

SHAPE DIMENSION ABRASIVES GRIT GRADE BOND REINFORCEMENT MAX SPEED
Type 27 180x6x22mm A 24 S B F 4,300 M/MIN

 

SHAPE
            Available in wide range of shapes but the more common types are:

                        Type
27 – Depressed Center Wheel
                        Type  
1 –  Flat Cutting Wheel

DIMENSION
           
Diameter(outside) x Thickness x Hole Size(arbor)

ABRASIVE TYPE
           A
– Aluminum Oxide, C – Silicon Carbide, Z – Zirconia
                  Other types include CBN(Cubic Boron Nitride) and Synthetic Diamond

GRIT/ABRASIVE SIZE
            Coarse         : 
8, 10, 12, 14, 16, 20, 24
            Medium        : 
30, 36, 46, 60
            Fine             : 
80, 100, 120, 150, 180
       
Super Fine   :  220,240,280,320,400,500,600

GRADE or HARDNESS
            Represented by Letters from
A-Z (softest to hardest),   but usually
                                      
EFGHIJKLMNOPQRSTU

BOND TYPE
           
B – Resin, other types of bond are:
                        
V – Vitrified,  R – Rubber,  S – Shellac,  P – Epoxy

REINFORCEMENT
           
Number of layer/s fiberglass reinforcements

               
1G
– 1 layer, 2G – 2 layers, 3G- 3 layers

MAXIMUM SPEED
           
Surface meter per minute (
M/MIN)

 

What are the common applications of abrasive grinding wheel? [^]

 

Classification Type Description
Aluminum Oxide A

Brown aluminum Oxide – strongest and toughest abrasives, suitable for grinding metal of high tensile strength.

WA

White aluminum Oxide – hard and extra-friable, and it’s high purity makes it suitable for application requiring minimum contamination of foreign substance. Best for hard sensitive steel such as stainless and alloy steel.

Silicon Carbide C Black silicon carbide, used for cast iron and non-ferrous metals like aluminum and copper, and nonmetal material, such as concrete and brick
CC Green silicon carbide, used for special alloy and very hard materials as glass and ceramic, etc.
 

What is GRADE or HARDNESS? [^]

The strength with which the bonds hold the abrasive grains together. It is represented by letters from A-Z, A being the softest and Z the hardest, but usually only letters  EFGHIJKLMNOPQRST are used.

Softer Grade Wheels cuts faster, uses lower amps/power, has less chatter but has lower wheel life and rougher finish.

 

What is a BOND? [^]

The material that holds or binds the abrasive grains together. It has no cutting action. The most common bond is the RESIN. Other types of bond are: Vitrified,  Rubber,  Shellac,  Epoxy.

What is GRIT SIZE? [^]

The Grit Size of the abrasive grains. This is determined by the size of the screen through which the grain will pass. Grit size are  typically from COARSE (8-24 grit), MEDIUM (30-60 grit), FINE (80-180 grit), and SUPERFINE grits run from 220 and higher