From a technical point of view the double band spiral brush is a well conceived tool. This type of spiral brush was developed from experience gained in the manufacture and use of the single band spiral brush.
It is important to use the double band spiral brush where it is technically appropriate, namely where heavy duty and hard bristle are used at high speeds.
The double band spiral brush channel consists of two metal strips, the outer strip holding the inner strip into place. The number and size of bristle tuft apertures can vary. This type of construction offers the advantage of providing different and accurately measured bristle tuft densities and it is appropriate for a wide range of bristle types, from very fine to heavy duty steel or synthetic fibres. The bristles remain firmly fixed at all times.
The advantage of double band spiral brushes, is that should the brush be damaged, bristles are lost only from the site of the damage, whilst the remaining bristle tufts are clamped separately.
Double band spiral brushes are made to the required length with an internal diameter of 20 mm upwards. They can be supplied in various channel widths and with every type of bristle material.
