~Grinding  Media  Balls

Material: GCr15 high chrome

According to the national standard GB8649-88 & forging (rolling) ball ferrous metallurgy industry standards (YB/T 091-2005), our plant specializes in producing forged/casted grinding media ball diameter from Φ20- Φ130mm.
 
The advance manufacturing methods and materials guarantee the maintenance of the geometrical tolerance and correct structures vital to reliable, consistent performance and long life. Therefore, our grinding balls are of rounded geometry, high hardness and good mechanical properties and resistant to wear, no distortion, no cracking of excellent quality.

 
Production Process:
1) Heating: heat the raw materials
2) Forging and Stamping: In this step, machines cut wire into short lengths and form it into spherical shapes.
3) Heat Treatment: heat treatment imparts the desired hardness.

 
Main Features:
high hardness, ground resistance, without loss of circle, low broken rate, high efficiency in grinding and etc.

Application Domain:
cement works, mine, mineral processing, thermal power, chemical industry and etc.
 
Classification, Chemical Composition and Metallographic Structure:
  Material C Si Cr Mn S P Mo Al Mirostructure
  special high-CrIII  2.2-3.0  ≤1.0  15-17  0.5-2.0  ≤0.06  ≤0.08  micro  micro      M+C
   high-Cr  2.2-3.2  ≤1.0  11-14  0.5-2.5 ≤ 0.06 ≤ 0.08  micro  micro      M+C
 
 
Mechanical Property
  Material Impact test(AK.J/cm2) Endurance test times(5m) quenching hardness(HRC) unquenching hardness(HRC) Breakage
  special high-CrIII    ≥4    ≥10000    ≥60    ≥49    <1%
  high-Cr    ≥4    ≥10000    ≥58    ≥49    <1%
 
Substance
Nominal diameter(mm) Diametrical tolerance(mm) Approx weight per ball(kg) Average number per MT
         25           +1,-0.5         0.033        30303
         30           +1,-0.5         0.064        15625
         40           +2.0,-1.0         0.11         9090
         50           +2.0,-1.0         0.261         3831
         60           +2.0,-1.0         0.510         1961
         70           +2.0,-1.0         0.883         1132
         80                 +3.0,-1.5         1.402         713
         90           +3.0,-1.5         2.092         478
        100                +3.0,-1.5         2.98         335
        110           +3.0,-1.5         4.087         244
        120           +3.0,-1.5         5.44         183
        130           +3.0,-1.5         7.062         141
 
  Packing

Type 1 : Plastic bag + box + carton + wooden pallet
 
Type 2 : Plastic bag + carton + wooden pallet
 
Type 3 : Our package :export cartons, steel drums, wooden pallets
 
 2. How to get a quotation?

a. Talk with our experienced staff via Trade Manger directly.
b.  Send E-mail to our staff.
All the inquiries will be reply within 24 hours.

For the steel ball, please kindly let us know the size, material, grade and quantity.

3. How to place an order?

Inquiry
  Quotation Order Deposit Payment Production Packing Balance Payment Shipping Done