Sulfex ROSSO (RED)

It is the most widespread product used in manufacturing of resin bonded grinding wheels.

S min 48 %
Fe min 42 %
Specific Density 4.60 - 4.90 g/cm3 (20°C)
H2O
(Weight Loss at 105°C)
ax 0.5 %
Bulk density 1.4 – 1.8 g/cm3
pH 4 – 7
D50 max 25 μm
D90 max 65 μm

 

SULFEX ROSSO pH controllato
(pH under control)

SULFEX ROSSO (Red) with higher pH stability, to maintain a higher shelf-life of the product even in extreme weather conditions, high humidity and temperature, especially during export by sea freight by container

S min 50 %
Fe min 44 %
Specific Density min 4.65 g/cm3 (20°C)
H2O
(Weight Loss at 105°C)
max 0,3 %
Bulk density 1.4 – 1.7 g/cm3
pH 5 – 7
D50 13 - 18 μm
D90 max 60 μm
 
Sulfex ROSSO HPW

(Iron Disulphide, FeS2)

SULFEX ROSSO ( Red) with high stability at high temperature, use d mainly for in manufacturing of resin bonded grinding wheels through hot press moulding and for all the application where higher stability is required

S min 50 %
Fe min 44 %
Specific Density min 4.65 g/cm3 (20°C)
Volatile matter
(Weight Loss at 180°C)
max 0.45 %
Bulk density 1.8 – 2.2 g/cm3
pH 5 – 7
D50 13 - 18 μm
D90 max 60 μm
 

Sulfex GIALLO (yellow)
(Iron Disulphide, FeS2)

Higher size, used mainly in in manufacturing of resin bonded grinding wheels, alone or mixed with Sulfex Red

S min 48 %
Fe min 42 %
H2O
(Weight Loss at 105°C)
max 0.5 %
Bulk density 1.4 – 1.7 g/cm3
pH 4 – 7
D50 max 125 μm
D90 max 300 μm

 

Sulfex BLU (Blue)
(Iron Disulphide, FeS2)

Used in manufacturing of large size resin bonded abrasives mixed with Sulfex Yellow and Sulfex Red

S min 45 %
Fe min 35 %
H2O
(Weight Loss at 105°C)
max 0.5 %
Bulk density min 1.8 g/cm3
pH 4 – 7
< 106 micron max 30 %
> 425 micron max 20 %

 

PYRICAL
Special filler mineral based

It’s a special mixture of minerals, fit to be used as active filler for in manufacturing of resin bonded grinding wheels especially used when a pH value between 6 and 8 is required; it is perfect for resin polymerization.

S min 30 %
Fe min 25 %
Ca min 5 %
H2O
(Weight Loss at 105°C)
max 0.5 %
Bulk density 1.0 – 1.4 g/cm3
pH 6 – 8
D50 max 25 μm
D90 max 65 μm

 

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