How To Fix Orbital Sander Slows Down? Best Guideline

Suppose you have been using an orbital sander while painting a surface and want to remove the previous layer with it.

You have been absent-minded, and after a while, you noticed that the paint removal is not perfect, but what is the reason?

How to Fix Orbital Sander Slows Down

The reason for the incident is the sander you’re working with has been slowed down; you must know how to fix orbital sander slows down. You will get a complete guideline and some basic knowledge about this here.

Thus, you can easily fix the problems in your orbital sander and have the best result using it, can’t you?

fix orbital sander slows down

You have to know the steps to fix an orbital sander when it goes slow, besides the uses, possible reasons, outcomes, etc., when it happens. Thus, you can know how to operate and take care of an orbital sander.

What Is An Orbital Sander?

What Is an Orbital Sander

An orbital sander is a machine that is used like other sanding items while painting, stain removing, or painting anything. The difference is you can hold sandpaper and rub the surface with the abrasive corner.

On the other hand, the orbital sander moves round at a definite speed and brushes off the previous stain or layer. Anyway, you can find the orbital sander better as they rub quicker than sandpapers.

However, the circular sander also has two types: the general orbital sander and the random orbital sander.

The core difference between the general and random circular sander is that the previous ones move circular, and the latter moves both circle and back-forth.

What Is An Orbital Sander Used for?

What Is an Orbital Sander Used for

Let’s see the preliminary uses of an orbital sander while working on anything:

If you want the smoothest finishing of a surface, the orbital sander would be the best choice. Suppose you want a quick sanding before and after painting; there comes an orbital sander to help.

This gadget is useful to restore the transparency of anything. You can use the rotatory or random one for parting areas for different colors. The orbital sander is pretty good to use on round workpieces.

Now you know that an orbital sander is useful in many ways, for multipurpose; therefore, you should keep them if you’re a worker or painter.

Related: What Are The Best 1×30 Belt Sander?

Do Orbital Sanders Slow Down?

Do Orbital Sanders Slow Down

Yes, those who regularly work with these sanders already know that it’s quite common for them to slow down.

No matter the reason, slowing down the orbital sanders hinders the perfect work, and you need to prevent it.

Why Do Orbital Sanders Slow Down?

Why Do Orbital Sanders Slow Down

As mentioned before, the orbital sanders can slow down for various reasons; let’s find them out:

The first reason for a sander slowing down is the user’s mistake; it may slow down if he doesn’t set the suitable speed.

If you pressurize the orbital sander too much on the working surface, the speed may lessen after the edges touch the working area.

Another factor that reduces an orbital’s speed is the clogs that already touch the edge or center. Suppose you haven’t cleaned the sander before start working on another workpiece, and it already has some sanded dirt.

The performance of the dirty sander may not be the same as the clean one, the same model. If the surface is badly damaged and becomes uneven, that can lower the orbital sander’s speed because the edge runs there smoothly.

These were some of the reasons why a sander gets slow down, but there are plenty. Moreover, some of your common mistakes while working may slow the speed of the orbital sander.

It would help if you got some tips from the experts about what things you must follow and avoid. You can have the best outcome if you follow the rules properly.

What Happens if an Orbital Sander Slows Down?

What Happens if an Orbital Sander Slows Down

As you know that you can’t apply an orbital sander that is running slow, but what if it slows while working? Let’s try to visualize those situations if a rotatory sander slows amidst.

The most common problem you can face is the rotor or the part that helps the sander rotate. If the rotor has any issue, it can slow or get faster; thus, the pace will interrupt your work.

Sometimes, the rotor can get damaged, leading the sander to stop rotating; therefore, you cannot even run it.

Another reason for a slow orbital sander is the dust all over it, and the dust there not only slows the machine but it makes your working surface dirtier. The logic is pretty simple, a thing that is slow and dirty will increase the dirt instead of removing it.

If the orbital is slowed down for any reason, it can damage the workpiece you have been working on instead of fixing. That is more terrifying because it will spoil and increase the amount of work and become time-consuming.

A slow orbital sander can’t sand the layer properly; thus, putting a new layer of primer and then painting becomes impossible.

If you ever want to complete the stain removal or painting the final coat with a slow-motion orbital sander, the sanding grits will barely touch the surface. As a result, the finishing will never be flawless.

Sometimes a slow sander circulation is a sign that your machine needs to be lubricated. Oil is the best option, but if you keep running the dry and slow circular sander, it may immediately break down.

You can see that you can’t neglect a sander being slow and need to recover it immediately. Otherwise, your work will never be proper, besides your machine will spoil, and you will have to buy new ones. Wouldn’t you want the sander to be long-lasting and save money?

How To Fix Orbital Sander Slows Down? A Definite Guide

How to Fix Orbital Sander Slows Down A Definite Guide

No matter how many preventive steps you take, it is common that sometimes your orbital machine will get slow. Then it’s time to fix the problem after you find the real cause; let’s see the steps below:

Step 1: Check the Speed

Step 1 Check the Speed

While working, the most common thing is that your hand can accidentally push the speed button and slow the pace.

If you find anything like that, you must fix and set the speed again. On the other hand, the problem is different if you still find the machine slow even after cross-checking.

You have to proceed to the next step and look for the reason for lowering the speed while working.

Step 2: Check the Cords and Power Supply

Step 2 Check the Cords and Power Supply

The cord you have connected may be loose, and that’s why the sander may not get enough electricity to speed up. If that’s the cause, you must tighten the cord and check if the speed is okay or not.

Well, if the cord is tight enough and the speed is less, you must check the central motor. The motor may not be working properly and providing enough energy to the orbital sander. If that’s the case, you have to either repair or replace the motor.

Step 3: Replace the Brushes if Needed

Step 3 Replace the Brushes if Needed

Some people complain about the machines that rotate well in the air, but as soon as they touch the surface, the speed reduces. The reason for it may be the brushes; it would be better if you had spare brushes.

You can quickly change the old brushes and get your machine speed checked; you don’t have to move forward if it gets fine. Otherwise, you still have to proceed further to find and fix the problem.

Step 4: Check if the Sander Needs Lubricant

Step 4 Check if the Sander Needs Lubricant

The center sometimes gets slow due to dryness, and that’s when you need lubricants. You can put oil or another lubricator between the blades or rotation center, but please don’t pour water.

Water will not work as well as a lubricator; moreover, it can oxidize the metal, creating rust.

Step 5: Fix the Surface You Are Working

Step 5 Fix the Surface You Are Working

It’s not always the sander’s fault if it loses speed; sometimes, it may be the workpiece you are using. If the surface has some uneven area or cavities on them, it will slow the speed ultimately.

Step 6: Rearrange The Removable Parts

Step 6 Rearrange the Removable Parts

If none of those mentioned above issues is found on your sander, it may be the attachment that leads the machine to spin slow. To fix the attachments, you must detach them first and check if there has been any problem or not.

If you find any problems there, you must fix those immediately; sometimes, cleanliness is required to make the sander faster. Please clean even the smallest part of the orbital sander.

These are the easiest steps that you need to follow while you find the orbital sander slow and want to fix them.

Please remember that it’s not costly because you may buy lubricator or cleaning items while purchasing the machine.

Moreover, you don’t need to proceed through all the six steps mentioned above because you may identify the issue within 2-3 steps. Thus, you can be assured that the process of fixing the speed is not time-consuming.

What Things Should You Avoid While Using an Orbital Sander?

What Things Should You Avoid While Using an Orbital Sander

If you want to get things done properly, you must avoid some silly mistakes that people commit and face problems.

You can easily avoid those mistakes and continue doing your work smoothly; avoiding them will make the sander long-lasting.

Avoid Touching Water While Sanding: Before Or After Painting

Avoid Touching Water While Sanding Before Or After Painting

All experts have always instructed the newcomers to keep water away except priming or creating a base.

It is forbidden, especially while sanding an area because water either spoils the layer and stops from drying or damages the sander,

Water particles usually oxidize the metal part of a sander and create rust; a rusty orbital sander can’t perform up to the expectation.

Don’t Be Too Hard While Working.

Dont Be Too Hard While Working

A common mistake that many people do while sanding is to pressure on the surface while working. But you are supposed to remember that the motor or disk is enough to put pressure on the workpiece, and yours will be extra.

The extra pressure you put on the machine and surface can break any one of those; too much pressure creates heat.

The extra heat can lead the sandpapers or other things used as the coat will melt and spoil the paint, varnish, or sealer.

Avoid Excessive Speed of the Orbital Sander

Avoid Excessive Speed of the Orbital Sander

There is a taboo among people working with circular machines: the speedy machine you will run, the best outcome you will get. But they don’t understand that excessive speed can also cause breakage.

The disk, attached blades, or brushes can displace due to excessive speed. That’s why it would be better if you keep the speed according to the manufacturer’s instructions.

The slow movement is also not good for a sander, as you have already found, and we also knew the process to fix the slow one. That’s why you will keep the pace always moderate.

Avoid Working on Angles That Are Not Allowed:

Avoid Working on Angles That Are Not Allowed

Please remember that the sander is appropriate for plain or curved areas, and you have to make sure that the sander is circulating straight. If you ever run it with an angle, it may get slow or even stop spinning.

That’s why you will always try to avoid the situation to run it at an angle, and if you feel that you may need something suitable for angles, you should keep other sanders.

Avoid Tempering the Speed on Air and Workpiece

Avoid Tempering the Speed on Air and Workpiece

Suppose you have determined a speed on the air that looked perfect and stopped it before touching the working area.

That is not the right thing to do because the speed that looks good in the air will slightly reduce after touching wood or workpiece.

You should avoid doing it and fix a speed that is perfect for sanding. You will start the machine in the air to check and slowly put it in the needed area. Thus, the orbital sander will start working properly with the correct speed.

It is pretty easy to avoid these things and make your work even more perfect; avoiding these things help you master the technique to use sanders.

What Are the High-quality Orbital Sanders in the Marketplace?

What Are the High quality Orbital Sanders in the Marketplace

Let’s see some of the best orbital sanders because their performances are pretty dependant on how well-known branded your product is and its features.

  • Dewalt Cordless Orbital Sander
  • Bosch ROS20VSC Palm Orbital Sander
  • Makita 18V Random Orbital Sander
  • Ryobi One+ 18V Random Orbit Sander
  • Skil 5 SR211601 Orbital Sander

These are not the only models you can use; you will have more options, but you have to check the details of your desired sanders.

Frequently Asked Questions

Why My Sander Is Jumping?

If you notice that the orbital sander is jumping or bouncing while using, it’s for the pad that holds the PSA disc. If you change the backup pad, it will stop jumping.

Is Orbital Sander Better Than Palm Sander?

My answer would be no because palm sanders are lightweight, easy-to-use than orbital ones. Moreover, palm sanders are suitable for all types of motion, not only circular.

Is Orbital Sander Good for Woods?

Yes, an orbital sander is good for woods, but you shouldn’t use it more often; otherwise, it may create a permanent circular spot on the surface.


Now that you know about how to fix orbital sander slows down, you can both prevent and repair it if you need. Moreover, it’s one of the basic knowledge one needs for woodwork or similar things.

Anyway, you should mark everything here as all of them are pretty important, and if you miss anything from them, you will face problems. It is essential to learn and practice more, besides you can use some of your ideas.

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