How to choose the appropriate Depressed Center Grinding Disc for using

- Mar 30, 2017-


The Resin Bonded Grinding Disc is mainly used on freehand Type27 Xtra Power angle grinder machine for grinding, so it can be named Type 27 Grinding Disc. The Depressed Center Grinding wheels can be used for grinding, polishing and cleaning during the using process.


Generally , the quality of  Depressed Center Grinding Disc not only depend on the abrasive material, gite size  and hardness , but also depend on fiberglass nets and Combining material .    If the fiberglass nets and combining material is not good , it will not only affect the using life of the Depressed Center Grinding Disc, but also lead to the safty problem . 


1:  How to get the best performance grinding disc for workpiece?

If customer want to get the best performance abrasive products , the customer should learn which material is the grinding disc used for. 

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.

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2:  The difference of grinding disc with one net and two net least 

If the grinding disc use the same material and the same combining material,  grinding disc with more strengthen fiberglass can have more safty and can reach higher speed during the using process , at the same time , it can also extend the using life of the grinding disc . 

If you want to learn more technical detail about the Depressed Center Grinding Disc , you are welcome to ask us . 

As a very active manufacture, we do try our best to give you perfect sales service, such as online guide for simple maintenance of the abrasives. 


3: Online Guide

As a very active manufacture, we do try our best to give you perfect sales service, such as online guide for simple maintenance of the abrasives. 

WhatsAPP:  + 86 15824920318 

SKYPE :      juma-abrsive 

Facebook :   https://www.facebook.com/jackcuttingwheel

Imo Beta:    +86 15824920318 


4: Abrasive products Range in JUMA ABRASIVE CO.,LTD 

We can Manufacture many kinds of abrasive products, such as flat cutting wheel, Depressed Center Cutting Wheel,  Depressed Center Grinding Wheel, Flexible Depressed Center Grinding DiscAbrasive Flap Disc, Abrasive Flap Wheel, Abrasive Fiberglass Backings Plate For Flap Disc and so on. 


Welcome your inquiry and visit