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Old 12-26-2013, 04:05 PM   #1
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orbital sander vs. random orbit sander


I am a bit confused not on the difference between the two, but the uses... if I were to purchase one, which one should I go with?

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Old 12-26-2013, 07:30 PM   #2
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orbital sander vs. random orbit sander


I've owned about every sanding machine type---

Orbital sanded are the old style square 'pad ' sander---useful but rather slow compared to a round,random orbit sander----

I have four or five of the round ,random orbit sanders--they are well worth the cost--and the paper seems to last a long time--no corners to wear through.

Pad sanders are better are getting into corners--

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Old 12-26-2013, 08:44 PM   #3
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orbital sander vs. random orbit sander


Same here, got them but the only one that gets used is the random orbital.
Another benefit is I can attach the sander to it for less dust.
One other one I use in tight spots is the sanding attachment on my random orbital sander.
Things like sanding around balusters, window stools with 20 layers of old paint any tight areas.
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Old 12-26-2013, 11:01 PM   #4
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orbital sander vs. random orbit sander


To me an orbital sander is a disc sander that spins.
They spin like a random orbital, but without the 'random' part. They spin constantly at a certain RPM. Also called disc sanders.

A random orbital spins at random speeds, and even stops spinning all together sometimes and just vibrates.

I call the old pad sanders vibrating sanders. There all kind of loosely used terms.. 'Palm sander' is used to mean all of them at times.

It depends on what you need it for, but random orbital is the most versatile and common.

Last edited by Jmayspaint; 12-26-2013 at 11:19 PM.
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Old 12-27-2013, 08:11 AM   #5
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orbital sander vs. random orbit sander


A disk sander only spins. Put a disk assembly on your angle grinder and you have a disk sander. A random orbit sander uses round sanding disks and spins while it orbits. The idea is to eliminate the swirl marks in the finish that an orbital leaves. An orbital sander generally uses sandpaper cut to fit the square or rectangular pad and travels in a repetitive orbital motion. For sanding into corners, you'll need an orbital. For general sanding, I use a random orbit. I have 5" and a 6" models, but prefer the 5". As Mike said, good quality disks tend to last a long time. For fast cut down, I use a belt sander, followed by a finish sander. For sanding into tight spaces and corners, I use a few different profile sanders with triangular pads. Most important, regardless of which sander you use, is to start with the proper grit and take your time. Use a handheld light at an angle and you will see the imperfections easier. For woodworking projects, an old timer once told me that it should take as long to sand a project as it did to build it. I can't even remember how many sanders I have, including some air powered ones, but the 5" random orbits gets used 3 times more than the others combined.
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Old 12-27-2013, 08:27 AM   #6
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orbital sander vs. random orbit sander


I get my sandpaper on Amazon that's made by Mirka.
Buy the big packs and it's far cheaper then the box stores.
It works as good as the 3M gold bond but cost less.
It also does not load up like cheap paper.
And no, I do not work for either company.
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Old 12-28-2013, 07:13 AM   #7
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orbital sander vs. random orbit sander


Quote:
Originally Posted by Jmayspaint View Post
To me an orbital sander is a disc sander that spins.
That is not what an Orbital sander is by any stretch. Orbital means that it moves in a circular motion. rotating is something different entirely.


Quote:
Originally Posted by Jmayspaint View Post
I call the old pad sanders vibrating sanders. There all kind of loosely used terms.. 'Palm sander' is used to mean all of them at times.
Depends on the pad sander. Some of the cheaper ones were just vibrators. Many were not, many had an electric motor which moved the pad in an orbital motion (vs vibrating or oscillating)

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