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Cement CGB

Cement CGB (Ceramic Grinding Ball) is made of high purity alumina.It has the excellent grinding efficiency in ball mill and cement industry.

Overview

The Cement CGB (Abbr. Ceramic Grinding Ball) is made of high purity alumina.The alumina based products feature high temperature tolerance,hard wear resistance and high performance in anti-erosion.It has the excellent grinding efficiency in ball mill and cement industry.

TOPNEWER, as a supplier of CGB, provides high-quality CGB and comprehensive solutions for high efficiency grinding of ball mills.

 

The typical properties of cement CGB are:

  1. High density, 3.6g/cm3.
  2. Ultrahigh hardness, Mohs scale 9, second only to Diamond in mineral.
  3. Good corrosion resistance, resistant to most acids and Alkalis.
  4. Excellent wear resistance, very low wear loss, less than15‰.
  5. Uniform and regular in shape.

 

Chemical and Physical of properties

Chemical   Properties Typical Value
Al2O3(%) ≥92
SiO(%) ≤7
MgO+CaO(%) ≤ 2
Fe2O3(%) ≤0.1
Water absorption rate(%) 0.01
Physical Properties
Bulk density (g/cm3 ) ≥3.60
Porosity (%) 0
Hardness (Mohs) ≥9
Hardness (Rockwell) 80-83
Wearing Loss (gram)/MT Clinker ≤ 15
Fracture Strength (KN) ≥60
Breakage rate(%) ≤ 0.05
Color White

 

Industrial test Standard reference:

GB/T 2997 – 2000 for bulk density,porosity.

GB/T 6900.9 – 2006 for alumina purity

GB/T 6900.10 –2006 for chemical composition

GB/T 8488.5-2001 for water absorption

 

Criterion of Fracture Strength

Diameter (MM) Pressed CGB Rolled CGB
13MM 40kn 15kn
15MM 60kn 25kn
17MM 80kn 30kn
20MM 100kn 35kn
25MM 130kn 40kn
30MM ≥130kn 45kn
As CGB is normally used in the 2nd or 3rd chamber,the application diameter is in thesmall range.
For the time being,2 shaping methods are adopted to produce CGB.One is by Isostatic press machine,so called pressed CGB; Another is made by rolling machine, so calledrolled CGB.

 

Sizes

Diameter(±1):15mm,17mm,20mm,25mm,30mm

 

Packing

25kg double plastic bags or as request.

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