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Stainless Steel Grinding Media Balls, 3mm to 50mm - MSE Supplies

Stainless Steel Grinding Media Balls, 3mm to 50mm

To better serve you, we would like to communicate with you about technical details. Please Contact Us for a quote.

Highly Polished Stainless Steel Grinding Balls

 General Description

  • Model No. : MSE-MM-SS-SIZE
  • Material : 304 Stainless Steel
  • Ball diameters : 3mm/5mm/8mm/10mm/15mm/20mm/25mm/30mm/40mm/50mm
  • Density : 7.93g/cm3
  • Hardness : ≤187HB; ≤90HRB; ≤200HV
  • Abrasion resistance : fairly good
  • Suitable for: medium-hard, brittle samples
  • Compatible grinding jars : 304 stainless steel jars

Element Analysis

General specifications

Material

304 (0Cr18Ni9) Stainless Steel

Chemical composition

Element

Share %

Chromium– Cr

17~19

Nickel– Ni

8~11

Silicon– Si

< 1.00

Manganese– Mn

2.00

Phosphorus– P

< 0.035

Carbon– C

< 0.07

Nitrogen– N

< 0.25

Nitrogen– S

< 0.03

Physical and mechanical properties

Density

7.93 g/cm³

Hardness

≤187HB; ≤90HRB; ≤200HV

 

Number and Size of the Balls

1. Pregrinding the coarse, hard material with large balls

2. Use of many small balls will increase the fine fraction if the running time is increased

3. A higher mass (spec. weight) of the grinding balls will accelerate the grinding

4. Size of the Grinding Balls

Type of feed material

Ball diameter

Hard samples feed particle size <10 mm

30 mm or 40 mm

Medium piece size (<5 mm)

20 mm

Fine material (0.5 mm)

10 mm or 5 mm

Homogenisation of dry or liquid samples

10 mm

Homogenisation of viscous samples

20 mm

These are just clues: the size of grinding jars and grinding balls should be determined experimentally if necessary.

 

Choice of Grinding Jars & Grinding Balls

In order to prevent excessive abrasion, the hardness of the grinding jars used and of the grinding balls must be higher than that of the material used. Normally, grinding jars and grinding balls of the same material should be chosen.

 

Grinding Jar Ball Configuration (for 304 stainless steel jars & balls)

Grinding Jar Volume

100ml

250ml

500ml

1000ml

Compatible Ball Weight

150g

375g

750g

1500g

Ball size/qty (pcs)

Ø5mm

87

 

 

 

Ø8mm

43

54

 

 

Ø10mm

4

55

55

 

Ø15mm

 

3

33

33

Ø20mm

 

 

3

28

Ø30mm

 

 

 

2

These values are just clues: the number of balls should be determined experimentally if necessary.

 

Calculated Ball Weight


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