Agate Balls Grinding Media


Processing Time : 2 To 3 Business Days

For Backorders: 2 -3 weeks

Ships from Mumbai Warehouse
Country of Origin: India

Free worldwide shipping on all orders over US $1000


Natural Agate Balls Grinding Media



Available Diameter: 5mm~20mm

High purity natural agate (97.26% SiO2) grinding media balls, highly wear-resistant and resistant to acids (except HF) and solvent, these balls are used whenever small quantity of samples need to be ground without contamination. Different sizes of agate grinding balls available: 5mm to 20mm. The grinding media balls are extensively applied to in the fields of Ceramics, Electronics, Light Industry, Paint, Ink, Medicine, Food, Geology, Chemical Engineering and so on.

   Features of Agate Balls

  1. High purity, low contamination to the samples
  2. Very cost-effective, low wear and long lifetime
  3. High specific gravity, high grinding efficiency
  4. Highly wear resistant to acid and solvents
  5. Highly polished, smooth, easy to clean, low abrasion to the equipment
  6. High mechanical strength, good toughness, impact resistance, no broken beads
  7. Mainly used for lab planetary ball mill machine

Use of milling media balls

  1. Pregrinding the coarse, hard material with large balls.
  2. Use of many small balls increases the fine fraction on increasing the running time
  3. A higher mass (spec. weight) of the grinding balls will accelerate the grinding.


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 recommendations: One should determine the size of grinding jars and grinding balls experimentally,  if necessary.


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.

Apart from Agate grinding balls , we also offer Zirconia Grinding Media  and Alumina Grinding Media


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