FAQ - Frequently Asked Questions - How to choose and use the Right Brush

SIT Brushes Solutions - We manufacture standard and special products to customer order
Here you may find an answer to the questions you have or a hint about how to use your brush or your brushing machine properly.
If you don't find what you are looking for Contact Us and we will try to provide an answer!

FAQ - General Informations

1. I can't find the right brush/ I need a special brush for my application and I don't know which one. What can I do?

As SIT half of our business is manufacturing technical and custom brushes engineered for special applicatios and designed together with the customer so don't hesitate to contact us here and our techical office will be glad to assist you in brush choice/design.

2. Where can I find SIT Brushes?

SIT Wire Brushes are manufactured in Italy then sold and distributed all over the world. We have many distributors in Italy, Europe (Western and Eastern), USA, Canada, Southern America, Russia, Australia and New Zealand, Africa, ...

3. Can I order directly from SIT or do I have to buy from a distributor?

Depending on the order quantity, on the type of brush and on your location you will be able to buy directly from SIT or you will be redirected to one of our loyal and reliable distributor

4. Where can I find distributors list for my region?

We have listed all our supplier and we are actually working on making an online version of this list but now if you contact us we can provide you SIT wire brushes distributors' contacts for your zone

5. Is it possible to have a free sample?

If you are an industrial user we can assist you in the right brush choice eventually providing you samples to trial. These samples depending on availability and type of brush can be provided for free or anyway at a special price.

6. What is the minimum order quantity?

We set very low order quantity levels for standard products but of course depending on the location the minimum order quantity may change since it's strongly influenced by transportation costs. Special products have a minimum order level as well but it's influenced by the type of brush (engineering and value of the material).

7. Where do you manufacture your wire brushes?

SIT manufactures industrial wire brushes in Italy in a production plant in Casalecchio, Bologna since 1960. Since then we started exporting our quality brushes "Made in Italy". A few years ago we opened a production plant in Eastern Europe, fully owned and controlled by us, to move the productions of some of our brushes and to allow an important growth

8. How do you ship your products?

We have contracts with the main carriers in the national and international market such as UPS, DHL, BRT, Geodis, Artoni, FedEx and others in order to guarantee a full customer service. We can ship our brushes by sea, airfreight or truck depending on location and volumes.

9. What are your lead times?

If our brushes are on stock we can ship them even in 1 day. If we have to manufacture the brushes then we will be able to supply them in 2-3 weeks generally. If you want to know what we have in stock contact us

How to Choose and Use the Right Brush

a. Brushing effect too light?

Increase the peripheral speed by increasing either the brush diameter or the rotation speed and at the same time never exceeding the "MAX RPM".
Use a brush with a shorter trim length.
Use a brush with a larger wire diameter or smaller grit size.
If using a crimped wire brush switch to a twist knot brush.

b. Brushing effect too heavy?

Reduce the peripheral speed by reducing either the brush diameter or the rotation speed. Never exceeding the "MAX RPM" value.
Use a brush with a longer trim length.
Use a brush with a smaller wire diameter or higher grit size.
If using a twist knot brush switch to a crimped wire brush.

c. What pressure should I put on the brush while working?

Filaments should always work on the contact face; a maximum work interference of 3% of the trim length is suggested. High pressure should be avoided as it could result in excessive bending of the wires and, as a consequence, the brush life and efficiency would be largely reduced.

d. How fast should I set the brush to rotate?

As a general rule a peripheral speed of 25 m/s on the surface to treat is recommended (...). You should check conversion charts we can provide on request to see, knowing the outer diameter of the brush, the matching RPM value.

e. The output finishing is too rough/coarse and uneven?

Similarly to the case in which brushing is too light you will have to decrease trim length and increase peripheral speed by using a bigger brush diameter or a higher rotation speed in RPM but in this case you have to decrease wire diameter/grit size.

f. The output finishing is too smooth and clean?

Similarly to the case in which brushing is too heavy you will have to increase filling material trim length and reduce peripheral speed by using a smaller brush diameter or a lower rotation speed in RPM but in this case you have to increase wire diameter/grit size.