Wheel sander buying guide

The operation of a wheel sander - also known as a satin finshing machine to some manufacturers - is very simple: a motor drives a horizontal shaft on which a roller is equipped - we will also run into the terms brush and flap wheel - both of which have abrasive properties.

To use it, the machine is dragged from top to bottom on the surface - or in the direction of the wood fibers, if applicable.

The many types and varieties of abrasive accessories are what makes the wheel sander unique and versatile.Concerning its field of action, the satin finishing machine is a real Swiss knife for any abrasive needs:

•  On wood, both soft or hard, the possibilities are huge. Dust and clean old tables, sand surfaces - both rough or finishing - even polishing; a great idea for fancying up your pieces!

Wheel sanders are rarely used by the general public, tending to mainly be favored by professionals.

The disadvantage: their price can be relatively high for a good-quality device, and since there are only a few models to choose from, our choice is simplified!

The technical characteristics are made up of all the key points for any power tool really, namely:

• The diameter of the shaft is expressed in metric threads: M8 and M14 being the most common. Pay special attention that the abrasive accessories are correctly compatible with your machine, otherwise you won't get very far! 

Options to ensure high comfort level

Settings to look out for

• Adjustable sanding depth: this is more than practical, it's essential! Just note that it's always better to make two light passages instead of one heavy-duty one! This will make it easier to maintain balance and avoid any mishandling.  

• Auxiliary dust cover: the goal is to protect your eyes, even though wearing protective glasses is still recommended! - Has an adjustable thickness depending on the model.

• The rollers: these are found on the mid / upper range models. Located at the front and rear, they stabilize the machine to stay perfectly parallel to the surface. The rollers can sometimes be adjusted depending on the job.

We will encounter three different terms: flap wheel, brush and hub - or even a fourth, rarely used by manufacturers, the plated cylinder. It is sometimes challlenging to be precise with this terminology because even the manufacturers themselves are sometimes confused in the technical terms but have no fear!

The brush:

Its thin rods will scrape the surface of the surface and gradually wear it down. The rods are made of metal, brass-plated steel, nylon or synthetic material - these last two options are also coated with abrasive particles. The diameter of the fibers is often provided and is a good indicator to look at when selecting your next purchase. Brass or steel wire are perfect for deburring, removing rust or corrosion or heavy scouring on wood. Nylon and synthetics are less aggressive and are used for maintenance or finishing work. Lastly, we have polishing brushes - made of soft material such as sheepskin.

The flap wheel and hub

A coating of abrasive material or nylon - to which is added more rigid flaps or abrasive enhanced rubber to increase durability. Another option is a slotted split system that cleans surfaces while getting rid of any dust! 

Flaps wheels and hubs are normally suitable for steel and wood but it's always better to check the manufacturer’s manual for specific instructions!

Last suggestion: for a better wooden structure and to get beautifuly polished furniture, go for the brush!

Brushes, flap wheels and hubs have two important characteristics: their dimensions - they need to fit your machine - and more importantly, their grade.

Like traditional sand paper, grade is based on a sliding scale, and with a range of 40 to 320. The higher the number, the more the work is said to be of a "finishing" nature.

One last piece of advice: Abrasive attachments for wheel sanders are often expensive and should be looked after with care. In other words, do not press with all your force on the machine during use! You will not go any faster, especially if you have to prematurely replace the broken parts! Happy sanding!

For passionate hobbyist and DIY-lovers, follow the links below for sanding-related accessories, advice from our editors and more helpful guides:

• How to choose your sanding/abrasive sheet?

• How to choose your sanding/abrasive paper?

• How to choose your orbital sander?

• How to choose your workshop sander?

• How to choose your paint?

• How to choose your paint roller?

• How to choose your paint gun?

• How to choose your exterior wood paint?

• How to choose your painting tools?

And to work safely:

• How to choose your protective gloves?

• How to choose your protetive eyewear?

• How to choose your safety shoes?

• How to choose your respiratory protection?