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The filament is composed of a matrix of Nylon 612 with abrasive grains an is ideal as material for the brushes thanks to:
CS - Abrasive Grit in Silicon Carbide:
OA - Abrasive Grit in Aluminium Oxide:
SA - Abrasive Grit in Aluminium Silicate:
Our best advice is to use Silicon Carbide in general for all the applications that require a high material stock removal rate. We rather advice to use Aluminium Oxide/Aluminium Silicate where the Silicon Carbide is too aggressive or may cause contamination in some applications on non-ferrous materials (soft materials, wood, plastic materials, aluminum).
The effectiveness of the brushing varies depending on speed, pressure, density/wire protrusion and above all type of filament.
The grits 120 and 180 can be used in most applications and anyway as the first verification the surfacesal treatment, after which depending on the level of finishing required, you can opt for a more appropriate grit.
Brush in abrasive nylon with frontal cup for the finishing of printed materials
SIT Tube Brush Tecnospazzole in Abrasive Nylon for holes deburring
Wheel brush in Abrasive Nylon for cleaning of pressed cast iron
Brush in abrasive nylon used in deburring of gears
Brush in Abrasive Nylon for deburring of extruded profiles in aluminum
Frontal brush SIT for deburring of profiled pressed cast iron
Roller brush SIT for the superficial treatment of wood
Wheel brush in nylon for the finishing of a shaft in steel
Cup brush with shaft for automatic machining centers and CNC
Abrasive wheel brush to finish the profiles in moulded cast iron
Tube Brush in Abrasive Nylon for the finishing of holes in cast iron
SIT Roller in Abrasive Nylon for the finishing of the tooth profiles
The metallic filament brushes remove the material “by impact” while the brushes with filament in abrasive nylon act “by abrasion” so, in general, we advise to use lower working speed and pressure.
With wheel brushes in abrasive nylon you can obtain the highest brushing effectiveness and a long service life of the brush with work interferences of 1/8 of the extrusion. In case of front brushes use interference depth of 2 – 3 mm. We anyway advice to start the job at the lowest possible interference/pressure, augmenting until you obtain the desired result.
The speed optimization depends on the type of application and the type of brush in use. In general for wheel brushes we recommend peripheral speed not higher than 18 – 20 m/s. For front brushes use lower speed.
We recommend the use of coolers (filtered water) for heavy-duty applications to avoid the reduction of the characteristics of mechanical resistance of the filament and to obtain more glossy finishing.
Reducing the advancement you can obtain: maximum angles spoking, complete burrs removal. On soft materials you can have higher advancement speed.
Rings in abrasive nylon with high wire density for gears deburring
Frontal cups for cleaning and satin finishing wheel rims in aluminum
Rollers for manual brushing machines for wood and metals
SIT Tube Brush for deburring on numeric control machining centers
Thermofused rings with no metallic parts for processing of with filamentss and alloys
Cup with shaft SIT for installing on an automatic machining center
Frontal cup for finishing metals, alloys, marble and granite
Frankfurt modules for antique-effect treatment on marble and granite + plates to adapt iron brushes
Cylindrical spiral brushes for satin finishing and superficial treatment of steel, aluminum and alloys
Technical Brushes SIT Tecnospazzole are designed to aggress any surface and process any material.
We report some examples of use of the abrasive nylon on some materials. The examples are indicative and have been obtained depending on the material to be treated with brushes of different shape, grits and sections of filament of different types.
Our technical office will advice on the best type of brush to be used.