These brushes consist out of brush strips in single or double band. These are wrapped to a brush roller with the profile together or with a pitch. This implicates that the filling can be open or very close.

The spiral brush has a great deal of application possibilities. The major advantage of this brush type with regard to the punched brush is that a much closer filling can be made with heavier and thicker fibre diameters. The filling material can vary from synthetic fibre, glass fibre, animal fibre and curved steel wire.

The spiral brush can be delivered as assembled on a core, on a thinsided tube or as a loose spiral. You can choose for a brush with the hairs turned inside or outside. Depending on the usage, the brushes are available in single or double band.

Spiral brushes single band

The fibres of these brushes are clinched in a steel U-profile by means of a core wire. The width of the profile goes from 2.5 mm until 12 mm. This brush has a continuous united filling. Very narrow diameters are possible and this is a great advantage of this product. For example a shaft hole diameter of 5 mm and a total diameter of 12 mm.
When the standard dimensions (see schedule) are not sufficient for your purpose, Koti can make the brush to measure. The single band can't get as much rotation speed as to double band version.

Spiral brushes double band

This brush contains two metal bands from which the outer band has holes and that clenches the inner band. The amount of holes and their dimensions is standard. You can dose the tightness of the filling very well and you can work with several types of fibres - from very fine to very heavy steel wire or synthetic fibre. The clamping of the hairs is always guaranteed. This version is at his best when high demands are made on the tightness of the clenching of the fibres.
This type of brush has been developed from the experience we had with single band brushes. Koti is one of the first manufacturers that has brought this double band brush on the market. This gives us the privileged position to deliver this spiral brush in many qualities and shapes in order to find the correct solution. By talking with our customers about the purposes of their brush, an appropriate solution can always be found.

Advantages

• open and tight filling possible
• high rotation speed
• easy assembling and disassembling
• many application possibilities
• several forms as well in single band as in double band