1)ISO9001:2008 2)good hard,mohs'8 3)Size:2-4,4-6,6-8,8-10,10-15cm

Natural pebbles for grinding ball in ball mill

1.Product:Pebbles/Silica pebbles/Natural pebbles

2.Size:2-4cm,4-6cm,6-8cm,8-10cm,10-12cm,12-15cm

3.Packing:in bulk/ton bags&pallets/ton bags

4.Use:grind ceramic material in ball mill

5.Spec.                                                                                                  

SiO2	99.31%
Al2O3	0.36%
Fe2O3	0.028%
MgO	0.04%
CaO	0.09%

6.Inspectation Report 

INSPECTATION PRODUCT	NATURAL PEBBLE
SIZE OF PRODUCT	8-10CM
STANDARD ABRASION RATE OF SILICA PEBBLE	< 1.5
ACTUAL ABRASION RATE OF SILICA PEBBLE	1.35
APPEARANCE OF SILICA PEBBLE	ROUND(ELLIPSE)
COLOUR OF PRODUCT AFTER BURNING	GRAY AND WHITE

7.Physical data

Specific weight :            2,66

Hardness(mohs):           8

Porosity :                      0,38 %

Apparent density :         1,60

8.to produce 1,000 kg of ceramic body,between 4 and 5 kg of pebbles will be necessary

                                                                                                                                                                                                                

Dalian Gaoteng International Trading Co.,Ltd.TEL:0086-411-82741622FAX:0086-411-82741722Http:www.gtdl.com.cn

                                                

                                                                                                                                                                                                 

                                                                                                                                    

                                                                     

                                                                                                                                         

Natural Pebbles as Grinding Media for Ball mill