Brushes in Abrasive Nylon

SIT Brushes use the highest Nylon quality soaked with silicon carbide abrasive grain, aluminum oxide or aluminum silicate. The brushes in abrasive nylon are designed for deburring applications, cleaning, chamfer and superficial finishing of different materials

The Abrasive Nylon Filament

Characteristics

The filament is composed of a matrix of Nylon 612 with abrasive grains an is ideal as material for the brushes thanks to:

Abrasion capacity
Chemical resistance
Flexibility of the filaments, which allows to process also non plane surfaces
Long lasting

Grits Available

CS - Abrasive Grit in Silicon Carbide:

Circular section filament: from 36 to 500
Rectangular section filament: 80/120/180/320

OA - Abrasive Grit in Aluminium Oxide:

Circular section filament: from 80 to 600
Rectangular section filament: 80/120/180/320

SA - Abrasive Grit in Aluminium Silicate:

Circular section filament grit 2000
Different grits available on demand

Abrasive nylon filaments in silicon carbide

Abrasive nylon filaments with silicon carbide

Abrasive nylon wires in aluminium silicate and silicon carbide

Abrasive nylon filaments with aluminium oxide

Abrasives Resistant to High Temperatures HT150

SIT has introduced for its range of brushes the new crimped abrasive filament HT150 resistant to high temperatures. HT150 is able to work continuously at the temperature of 150°C and can be recharged with abrasive aggregates of different types and with grit of different size.
Thanks to its resistance to the effects of temperature, the wire can work at sliding linear speed of 60 m/s, superior to those bearable by any other traditional abrasive wire, based on a synthetic matrix of PA 6.12: the brushes using the wire HT150 can therefore generate an abrasion effect 5 times higher than the traditional ones

Download the Datasheet of HT150

Choosing the Abrasive Type

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

Tube Brush in Abrasive Nylon for holes deburring

SIT Tube Brush Tecnospazzole in Abrasive Nylon for holes deburring

Wheel brush in Abrasive Nylon for cleaning pressed cast iron

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

Brushing advices with the Brushes in Abrasive Nylon

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.

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.

Rotation Speed

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.

Refrigeration

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.

Advancement

Reducing the advancement you can obtain: maximum angles spoking, complete burrs removal. On soft materials you can have higher advancement speed.

Type of Brushes with Abrasive Filament

Rings with high wire density for gears deburring

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 very high wire density with no metallic parts for jobs on with filamentss and alloys

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 superficial treatments of finishing on metals, alloys, marble and granite

Frontal cup for finishing metals, alloys, marble and granite

Modules (type Frankfurt) for antique-effect superficial treatment on marble and granite and special plates for adapting the brushes in steel and obtain a different type of finishing

Frankfurt modules for antique-effect treatment on marble and granite + plates to adapt iron brushes

SIT cylindrical spiral brushes (welded on top, on tube flanged at the bottom) for satin finishing and superficial treatment of steel, aluminum and alloys

Cylindrical spiral brushes for satin finishing and superficial treatment of steel, aluminum and alloys

Examples and effects of brushing with Abrasive Nylon

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.

Stainless steel surface brushed with SIT brushes

Wood surface painted, then brushed with abrasive nylon

Wood brushed with SIT brushes in abrasive nylon

Slab of travertine processed with brushes in abrasive nylon SIT

Slab of Slate brushed with abrasive nylon

Brushing of a detail of a brick with technical brushes SIT

Cleaning of welding on aluminum with brush in abrasive nylon SIT Tecnospazzole

Cleaning of welding on iron with brush in abrasive nylon SIT Tecnospazzole

Contact and Offer Request

Our Technical Office is ready to help in the choice of the abrasive grit and, depending on your application, will advice in the choice of the Ideal Brush in Abrasive Nylon

Contact Us!