Sander buying guide
Pauline, Self-taught handyman, Leeds80 guides
Got a damaged parquet floor in need of some care and attention, kitchen furniture to repaint, or doors to sand? Don't worry, there's a sander out there for every task! Read on to find out more about belt sanders, orbital sanders and random orbital sanders.
- Base plate shape
- Sanding motion
- Type of job
Choosing the right sander for the job
If you want to sand wooden joists or beams, you need a belt sander: this is the most powerful type of sander for heavy-duty tasks.
For sanding curved surfaces you should look for an orbital sander. These models are lightweight and great for finishing work.
Random orbital sanders can be used for flat surfaces and finishing work; they are just as easy to handle as orbital sanders as they feature a similar design.
For overhead sanding jobs, use a drywall or long reach drywall sander. These models should ideally be hooked up to a dust extraction system.
It is possible to sand down flooring using various types of sander but the most efficient option will be a floor sander.
When it comes to flat surfaces and finishing work, an orbital sander will generally work as well as a random orbital sander!
Why choose a belt sander?
Belt sanders are used for rough sanding tasks (flooring, joists, etc.) and can only be moved in a back and forth motion. These sanders are made up of two parallel rollers where the sandpaper is secured.
Belt sanders are powerful and noisy, and can create impressive dust clouds! They are designed for use with two hands as they can weigh between 4 and 8 kilos. These tools can come in handy for sanding wooden floors. However, a floor sander is best suited to this task as it will save you from having to work in awkward positions. Belt sanders are essentially used for rough sanding of large wooden surfaces.
As for any type of sanding job, you will need to sand your surface three times working from the roughest to the finest grit and remember to also sand down all edges.
Electric power files
In short, electric power files are used for rough sanding or fine filing. The main applications of these tools are as follows:
- Sanding curved surfaces
- Shaping wood
- Removing excess weld
- Filing down nail or screw heads
- Cleaning apertures (e.g. mortise joints)
- Rounding off ceramic tiles
- Rust removal
Why choose an orbital sander?
Used for final finishing and finishing jobs, orbital sanders are great for flat surfaces and offer high-quality results. The plate turns in tiny orbits at speeds of up to 15,000 rpm. These can be used for a wide range of applications using a 150 or 125 mm plate.
Suitable for small to medium-scale sanding tasks, these tools can be used on wooden or metal surfaces.
Pneumatic orbital models are favoured by professional sanders as they are specially designed for extended use and frequent sanding jobs. Designed for use with an air compressor, pneumatic sanders must be used with the correct air flow rate to ensure optimum performance.
What is an random orbital sander?
The combination of the oscillating and rotating motion makes these tools more efficient and flexible. This type of sander can be used for both curved and flat surfaces. They usually come with a softer pad for high-quality finishes on wood, etc.
Random orbital sanders are particularly well-suited to finishing work. They are also commonly used for vehicle body repair work. Sanding pros can also get their hands on pneumatic models!
Other uses of random orbital sanders
if you are only looking to polish, buy a polisher!
1/2 sheet, 1/4 sheet and delta sanders
For larger surfaces, use a rectangular (1/2 sheet) base; for tight corners, go for a triangular (or delta) base. Generally speaking, sanders with square bases (1/4 sheet) are easier to use than random orbital sanders and orbital sanders with circular bases.
Stay safe with dust extraction
Sanders with dust extractor adaptors can be plugged directly into your dust extractor hose. As such, you will have to check that your hose nozzle is compatible with the adaptor. Dust bags or other dust extraction systems are highly recommended in order to protect your respiratory system.
They will help to keep your working space clean and reduce the risk of breathing issues caused by inhaling dust. This option is especially important when sanding harmful materials.
Drywall and long-reach sanders
These sanders are specially designed for overhead use. The heavier they are, the more work they are to use. Bear in mind that these models generally weigh between 2.5 and 5 kg, meaning you can get your sanding and workout done in a oner! Some long reach models feature a telescopic pole meaning that they can be used from a stepladder.
You should keep in mind, however, that these models can weigh up to 12 kg – another good opportunity to get a weight-lifting session in! Drywall sanders are ideal for plasterboard sanding. In this case, make sure to use a dust extractor as well as anti-clogging sandpaper. Invest in a good dust extraction system and your lungs will thank you in the long term!
Choosing a wattage for your sander
When it comes to choosing a sander, you should focus on the type more than anything else as each model is designed for a specific task and material type. That said, sanders can range from less than 100 W up to 1200 W in power, depending on the model.
It's worth noting that the finer the work, the less powerful and heavy the machine. With the exception of belt sanders, the following characteristics are generally more important than power rating:
- Rpm and sanding orbits (for random orbital sanders);
- Orbit diameter (for orbital sanders).
Additional options for sanders
Lower speeds are useful for finishing work or dealing with hard woods or metal; you can crank up the power for rough sanding.
The benefits of an anti-vibration system and sandpaper fixing system
Brushed or brushless motors
Corded or cordless sander
Tips and tricks for using your sander
Choosing the right sandpaper is essential if you want to achieve good results. Choose the right grit for the task at hand. Do not sand over the same area for too long and always follow the grain of the wood – if you fail to do this, you are guaranteed to mess up the results!
Wear protective gloves and goggles if you want to stay in one piece. Hearing protection is also advisable, especially when using a belt sander! You must also wear a respiratory mask to protect yourself from breathing in wood dust.
Pauline, Self-taught handyman, Leeds 80 guides écrits
I'm a dog trainer by profession, but every weekend I put the whistle down and pick up a tool. The trainer mindset is not so easy to set aside - whether with four-legged or two-legged friends, I love giving advice!
I've been a huge DIY enthusiast for as long as I can remember. I grew up in a house where the whir of the sander was the soundtrack to my weekends - not very relaxing, but always satisfying! DIY challenges our brains as well as our brawn. I've worked hard to teach myself the basics of DIY, decorating and customising furniture. That said, I love what I do. DIY is a way of life, and the tools you learn aren't just the ones you can hold in your hands.
I'm as passionate about animals as I am about DIY, and it's my goal to pass that passion on to others. I know that for some, understanding animal behaviour is as much of a puzzle as figuring out which tool is best for the job. That's why I offer guidance to pet owners specifically - because home is where the heart is for humans and animals alike!
So now that I've introduced myself, it's time to do some DIY - dog or cat sidekick optional!
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