The Differences Between Inward And Outward Spiral Brush

What Is An Outward Spiral Brush?

 

The outward spiral brush is a kind of cylindrical spiral brush whose brush bristle is embedded in galvanized iron or stainless steel strips and wound by the machine into the shape of a spring. This winding method makes the brush bristle tightly attached to the metal strip, forming a cylindrical spiral brush which has high density and its brush bristle is not easy to drop.

 

 

 

What Is An Inward Spiral Brush?

 

The inward spiral brush is a kind of cylindrical spiral brush which is commonly used in industry. Its structure is characterized by spiral brush bristles tightly wound on the steel wire shaft. Inward spiral brush is mainly used for polishing and cleaning wire pipe fittings and other items. The brush bristle material of the inward spiral brush is generally 0.1-0.3mm steel wire or stainless steel wire and high-quality nylon wire. Nylon brush wire mainly adopts wear-resistant brush bristle such as abrasive wire.

 

 

Both the inward and outward spiral brush are cylindrical spiral brush, which can be used for surface treatment, grinding, adjustment, cleaning and other work. From the name, we can see the difference between them: the brush bristle around the inward spiral brush is located inside the shaft, while the brush bristle around the outward spiral brush is located outside the metal strip. Below we will introduce the difference between inward and outward spiral brush in detail.

 

Inward Spiral Brush

 

Structure

 

Relative to the outward spiral brush, the brush bristle of the inward spiral brush is wound from the central part to the two sides. The brush bristle’s density is higher, its length is shorter, and it is often fixed on the center hole of the tool drilling tool, which is shaped like a cylinder for surface cleaning, polishing, chamfering and other operations.

 

Characteristic

 

More uniform pressure: Because the spiral brush bristle is wound according to the predetermined number of turns during production, the distance between the brush bristle is more uniform, and the elasticity is better. The inward spiral brush can ensure the uniform pressure of the brush bristle in the case of the change of the surface shape, and reduce the chance of the brush bristle to produce ripple marks.

 

Adapt to different hardness surfaces: The brush bristle length of the steel spiral brush is relatively short, and the brush bristle density is high, so it can be applied to a variety of round or conical surface treatment, and often used for contour cleaning, deburring, sand hole removal, deslagging, nozzle expanding, etc. Its application range is wide, can adapt to a variety of different hardness surfaces, and the treatment effect is also better.

 

Easy to adjust: Relative to the outward spiral brush, the inward spiral brush is easy to adjust and replace the brush bristle. Because the length of the brush bristle is short, there is no excessive waste when replacing the brush bristle, and it is relatively easy to adjust, and the installation is flexible, so it is economical and practical.

 

 

 

Outward Spiral Brush

 

Structure

 

In contrast to the inward spiral brush, the brush bristles of the spiral roller brush are embedded in the outer galvanized iron strip or stainless steel strip, and are wound by the machine into the shape of the spring. This winding method makes the brush bristle tightly attached to the metal strip, forming a brush roller with high density. The brush bristle of the outward spiral brush is not easy to drop. It is suitable for deburring, removing oxidation skin, scratch removal, grinding, polishing and other work.

 

Characteristic

 

Can handle a larger area: Compared with the inward spiral brush, the outward spiral brush is relatively longer, and the brush bristle density is higher, so it can handle a larger area.

 

High treatment efficiency: Because of the high density and the strong elasticity of the brush bristles, the outward spiral brush can maximize the smoothness of the surface, remove burr, wear, oxide skin, and corrosion, which can lead to black stains on the surface of the iron. Thus, the treatment efficiency is relatively higher.

 

Suitable for special-shaped surface: Because the structure of the polypropylene cylinder brush is relatively flexible, it can better adapt to the surface of different shapes, and the treatment effect is more excellent.

 

 

 

In general, the inward spiral brush and the outward spiral brush each have their own advantages and disadvantages, and the specific application is different. Inward spiral brush is more suitable for dealing with small area, round, different hardness surface; The outward spiral brush is more suitable for large area surface polishing, grinding, cleaning and other processing work.