A-Grade Agate Grinding Balls
Product Details
Introduction of Agate Balls
High purity natural Brazilian 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 grinded without contamination. Different sizes of agate grinding balls available: 3mm 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. High 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
Technical Data
Product | Agate balls |
Item No. | DECO-B-SIO |
Main Material | Agate -SiO2 |
Shape | Sphere |
Optional Ball Sizes | 6/ 8/ 10/ 15/ 18/ 20/ 25/ 30 mm |
Density | 2.65 g/cm3 |
Color | Ivory white or gray |
Hardness | 7.2~7.5 Mohs |
Abrasion Resistance | Good |
Compatible Samples | Soft to medium-hard samples |
Compatible Ball Mill Jars | Agate jar/ PA jar/ PP jar/ PU jar/ PTFE jar/ HDPE jar |
Element Analysis
General Specification | |
Main Material | SiO2 |
Chemical Composition | |
Element | Share % |
SiO2 | 97.26 |
MgO/ CaO/ Mn2O3 | 2.74 |
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 & 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 Configurations (Agate 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 Configurations (Agate Balls)
Grinding Jar Volume | 100ml | 250ml | 500ml | 1000ml |
Compatible Ball Weight | 100g | 250g | 500g | 1000g |
Dia5mm Grinding Balls (0.17 g/pc) | 118 pcs | 294 pcs | 589 pcs | |
Dia10mm Grinding Balls (1.39 g/pc) | 36 pcs | 90 pcs | 180 pcs | 144 pcs |
Dia15mm Grinding Balls (4.68 g/pc) | 7 pcs | 16 pcs | 32 pcs | 107 pcs |
Dia20mm Grinding Balls (11.10 g/pc) | 27 pcs |
These values are just clues: the number of balls should be determined experimentally if necessary.
Shipment
1. By FedEx /DHL /UPS /TNT /EMS door to door services.
2. By Air or by Sea for batch goods; for FCL. You'll have to pick up the goods at the airport or port.
3. Customers specifying freight forwarders or negotiable shipping methods are available.
4. Lead time: 3 to 5 days for regular products.
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