Technical Guidance


If you are the direct user , you can choose the right products according with your using steel and the main features of cutting wheel / grinding wheel / flap disc you expected . You can also contact us and we will show the best advice for your reference.

If you are the local agent in your country , we will supply the abrasive products you need according your market. We can also supply the OEM products for your sale . 


1.Basic principle of Cutting wheel and Grinding wheel choice



Abrasive Material Introduction

Grit Size Introduction

Hardness Introduction

A--aluminum oxide

16-24   coarse density

D-L  soft

C--silicon carbide

30-60   medium density

M-N medium

 Z-- Zirconium aluminum

70-220  fine density

P-S  hard

ZA—Zirconium aluminum/aluminum oxide


T-Y  very hard

 AC—aluminum oxide/silicon carbide



WA--white aluminum oxide





a) A-for general metalworking cutting and grinding

b) ZA or WA- for stainless steel cutting and grinding

c) C or GC-for non metal, stone cutting and polishing.



Workpiece


Carbon steel

Stainless steel

Copper

Brass

Bricks

Masonry

Best choice


Carbon steel

(50mm-75mm)

General Abrasive wheel

A24-36Q

A24-36P

A WA24-36P

C30N

A24R

C30P

C24-30Q
A24-36M

Thin Cut-off wheels

A46-90R

A46-90Q

A46-90P

C46-90N

A46-90R

C46-90R

C46-90R

Flexible Grinding wheels

A/C46-120
WA46-120


C46-180

 


Generally , Cutting wheels with thickness 1.0/1.2/1.6/.2.0mm are suitable for fast and easy cutting. Cut-off wheel with 2.5mm thickness is used for cutting common material. Cutting disc with 3.2/3mm thickness have long life and high profile stability.

Grinding wheel manufactured by Aluminum Oxide material with the thickness 6.0mm have long life and high profile stability. Depressed Center Grinding Disc manufactured by white Aluminum Oxide material have best sharpness and can be easy cutting and grinding.


2. Basic principle of Abrasive flap disc choice



Alumium Oxide Flap Disc Silicon Carbide Flap Disc(ZA) Zirconia Oxide Flap Disc          



1)Aluminum Oxide Flap Disc is mainly used for grinding and polishing carbon steel metal, wood, metal, iron, welding rods etc. This kind of flap disc is also called Metal Polishing Flap Discjust because it mainly used for common metal steel.

2)Zirconia Oxide Flap Disc is professionally used for grinding and polishing stainless steel, aluminium steel  and construction steel, mild steel etc. This kind of flap disc is also called Stainless Steel Flap Discjust because its professionally using area .  

3)Silicon Carbide Flap Disc is mainly used  for polishing wood, copper, stone, marble, building materials, hard materials, glass etc.

Our abrasive flap disc can be installed in the electric or pneumatic tools and automated polishing production line for all kinds of metal, stainless steel, wood, plastic, rubber, plane, inner and outer surface, irregular surface and large area of long workpiece rust, hair removal assassination, grinding and precision surface finishing, Manufacturing, maintenance and repair industry.


3: Basic principle of Abrasive Fiberglass Backing Plate choice


 




T29 Abrasive Fiberglass Backing Plate    T27 Abrasive Fiberglass Backing Plate



Material: Fiberglass fabric impregnated with phenolic resin
Washer: 1 or 2 or as requirement

Layers : 7-14 layers or according customers’demands 
Thickness: 2.4mm-3.5mm(Tolerance: ± 0.3mm)
Inner diameter: 16.3mm, 22.3mm(Tolerance: ± 0.15mm)
Outer diameter: 75mm, 85mm, 90mm, 95mm, 105(107)mm, 115(117)mm, 140mm, 170mm, 220mm
Applications: Used for the backing pads of Flap Disc, Mop Disc and Flap Wheel.



D± 3 /mm

H+0, 16

min mm

F min, mm

95

16

35.5

4.6

105

22, 23

45

4, 6

115

22.23

45

4.6

140

22, 23

45

4, 6

170

22, 23

45

4, 6



JUMA ABRASIVES CO., LTD. has already owned 150 sets of advanced manufacturing production line,50 sets in our old factory and the 100 new full automatic production line were put into use in our new factory which have 70,000 square meters with the registered capital ¥15,000,000. The company owns the staff of more than 500, the middle and advanced engineers, technicians and skillful workers account for over 60% of the staff.

We can supply many kinds of abrasive products, such as cutting wheel, grinding disc, flap disc, flap wheel, abrasive fiberglass backings plate for flap disc , wire brush and so on. At the same time , our technology research and development department are still developing the new products according the markets need .

Welcome your inquiry and visit .