Walnut sand is made from high-quality walnut shells, which are crushed, polished, steam washed, and screened. Walnut sand has high hardness, wear resistance, good compression resistance, stable chemical properties, does not dissolve in acid or alkali, and is refined from alumina as raw material. It has the characteristics of short grinding time, high efficiency, good benefits, and low price. The product has moderate hardness, high toughness, good self sharpening, low sand consumption and recyclability, and good grinding surface finish; Moreover, the chemical composition is stable and resistant to acid and alkali.
Appearance: Beautiful and brown in color, walnut sand is made from high-quality walnut shells and processed through crushing, spinning, polishing, steaming, washing, screening, and other techniques
Features: This filter material has high toughness, wear resistance and compression resistance, strong adsorption capacity, oil immersion resistance, no clumping, and no decay.
Polishing sand is mainly applied in the areas of stainless steel surface cleaning, welding slag removal and sub gloss effect, iron workpiece rust removal, dirt removal, oxygen scale removal, increasing coating and coating adhesion, aluminum workpiece oxide scale removal, surface strengthening, and finishing effect, copper workpiece oxide scale light effect, glass product crystal sanding and pattern carving, plastic products (hardwood products) sub gloss effect, denim and other fabrics, plush processing patterns. It can also be used for polishing and rust removal of surfaces in automobile manufacturing plants and shipyards.

The walnut shell filter material produced complies with the Q/SY DQ0614.3-2005 execution standard
Analysis of Physical and Chemical Properties of Walnut Sand
Analyze project testing data Analyze project testing data
Specific gravity 1250kg/cm3 Cu 13.2%
Bulk density 800kg/cm3 Mn 9.5%
Wear rate ≤ 1.5% Zn 50%
Floating rate 3% Ca 0.5%
Porosity 47 Na 0.02%
Oil removal rate>65-95% K 0.025%
The new and old implementation standards for walnut sand are: Q/SY DQ0614-2000
Q/SY DQ0613-2000
Q/SY DQ0614.3-2005