Random orbital sander

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Forum topic by txn posted 12-13-2014 01:26 AM 1090 views 0 times favorited 21 replies Add to Favorites Watch
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135 posts in 878 days

12-13-2014 01:26 AM

it seems that I’m buying all the fuss about a month ago I bought the ridgid 5in ros. Well yesterday in mid project it decided it didn’t want to turn back on I took it back and got the dewalt variable speed ros got it home and started using it it was pulling me all over the work piece and vibrating so badly that if I wasn’t going to return it I would’ve just thrown it away. Now my question is which ros do yall use? Bosch has been boycotted by me due to the router that I had quit working after 6 months of light use. And festool is too much for me to spend right now. Also want the variable speed but not a major deal breaker just want something that’s going to work

21 replies so far

View paxorion's profile


1100 posts in 1464 days

#1 posted 12-13-2014 02:06 AM

I use both a Dewalt non-variable speed ROS and a Bosch variable speed ROS. I much prefer my Dewalt as it has the power to do what I want to and I docked a star because I want the variable speed version. I upgraded from a Craftsmans cheapo sander and noticed a massive reduction in vibration on my Dewalt, so I wonder if your unit might be out of balance and/or defective?

Another possibility, what type of surface are you sanding? I’m curious if you experience this with a variety of surfaced materials. I know when I sand excessively rough surfaces (i.e. jagged end-grain cutting board after flatting with a router sled) it will do one crazy dance until the sandpaper has sufficiently cleaned up the surface.

-- paxorion

View txn's profile


135 posts in 878 days

#2 posted 12-13-2014 02:23 AM

The ridgid didn’t have and vibration or piling issues I was sanding edge grain cutting boards that had already been sanded upto 120 with the ridgid before it quit working

View paxorion's profile


1100 posts in 1464 days

#3 posted 12-13-2014 02:34 AM

Hmm, I’d contact Dewalt support. I’ve used many different sanders and have never seen one of them skate along. I can’t help but think a balance problem.

-- paxorion

View AandCstyle's profile


2537 posts in 1676 days

#4 posted 12-13-2014 02:52 AM

I have the Festool and yes, it is a lot of money up front, but, as they say, cry once…

Another consideration would be a pneumatic sander if you have an adequate compressor. HTH

-- Art

View Bobsboxes's profile


1091 posts in 2083 days

#5 posted 12-13-2014 03:56 AM

I have at least 5 of the 5” Bosch var. speed sanders, with good paper they have always preformed for me. I tried the dewalt, with not good results. I also have a 3m phenmatic finish sander, hands down the best sander I have ever used. Festool has great reviews. Good luck, let us know what you end up with.

-- Bob in Montana. Kindness is the Language the blind can see and deaf can hear. - Mark Twain

View Crank50's profile


170 posts in 995 days

#6 posted 12-13-2014 05:25 AM

Besides the Festool and the specials with DC drive or pneumatic driven sanders there are just two other basic designs made in just two places. What does that mean? Well, it means Dewalt, Ridgid, Milwaukee, Skil, Ryobi, Black and Decker, Bosch, and Porter Cable all come from one of two factories. You can tell the difference by looking at the pad. If it has 4 attachment screws it’s from one factory and if it has 3 screws it is from the other factory. Ridgid is a 3 screw and the Dewalt is a 4 screw design, so they are different. Ryobi is 3 screw like the Ridgid so they have common origins. Some parts are even interchangeable between the brands. The replacement pad for a Ryobi also fits the Ridgid and the PorterCable and the Milwaukee. I have the Ridgid and like mine except for the on/off switch.

View Crank50's profile


170 posts in 995 days

#7 posted 12-13-2014 05:26 AM

Sorry, double post.

View Rob's profile


704 posts in 2490 days

#8 posted 12-13-2014 06:24 AM

You’re right to avoid the 5” Bosch ROS20VS. Its tiny stroke and weak motor make it useful for finish sanding only. The slightly concave pad helps with dust collection if you have a vacuum attached, but it also causes the outside of your sanding disc to do all the work.

If you can’t afford a Festool sander now, get an ETS150 for 20% or 30% off when the reconditioned sale comes up again next April or May. Whether you get the ETS 150/3 or 150/5, you’ll wonder why sanding used to take so long and give you such a tingly hand.

-- Ask an expert or be the expert -

View Heywood's profile


33 posts in 867 days

#9 posted 12-13-2014 08:14 AM

I have been through a few random orbit sanders. It was a few months ago when a fellow coworker told me about a Mirka Ceros. I did all my usual research to only find out that this is the leader of sanders. I was hesitant at first of the price tag, but after consideration I purchased one. This by far has been one of the best purchases I have ever made. The sanding unit is so light and ergonomically correct it is a joy to use. The dust collection is where it really shines, on flat boards there is virtually no excess sawdust flying. With the Abranet discs and an Oneida Dust Cobra hooked up to it, I could not see or smell anything. I have an excellent light shining down and would have seen the dust if it were getting out. I can actually state that I know enjoy sanding. If you are serious about this hobby, this is worth every penny. I purchased the 6in and the entire kit was $500.00.

View InstantSiv's profile


259 posts in 1014 days

#10 posted 12-13-2014 01:35 PM

I have a Ridgid and use it nearly everyday for the past 2 years. Had to replace the brake skirt(I think that’s what it’s called) recently but that’s a consumable part.

View dhazelton's profile


2284 posts in 1715 days

#11 posted 12-13-2014 02:46 PM

I have a cheap baby Ryobi and for occasional use it has been fine. I have a Porter Cable 6 inch which is essentially a grinder with an ROS head. It’s a beast and can be too aggressive if you aren’t careful.

View shipwright's profile (online now)


7084 posts in 2217 days

#12 posted 12-13-2014 03:11 PM

Plus one for. Mirka Ceros. I love mine but it happens I also have a pneumatic one from HF that cost around $480 less that, equipped with the same Abranet, works almost as well. I hate vibration and the Mirka has virtually none. The HF one is almost as good on vibration, is lighter and has decent if not equal dust collection.
I won’t be letting go of my Mirka but if you don’t want to spend the money on one and have a good compressor, check out the little HF air sander, the one with the DC hose.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

View bigblockyeti's profile


3570 posts in 1139 days

#13 posted 12-13-2014 03:26 PM

I have a right angle Porter cable 5” ROS, very powerful with variable speed, very smooth too. The dust collection is poor at best with the shroud that goes around the pad. It doesn’t have anything to stop the pad from accelerating to the full speed of the arbor.

View waho6o9's profile


7115 posts in 1996 days

#14 posted 12-13-2014 03:29 PM

Looks like there’s a sale going on at Harbor Freight so for around $40.00 you can
get an air sander that has good reviews. Other sanders don’t have such good reviews
at HF so watch which one you get.

Good friendly advice Paul, thanks.

This one has 33 favorable reviews:

View johnstoneb's profile


2104 posts in 1591 days

#15 posted 12-13-2014 03:49 PM

I have a 5” Porter Cable ROS for about a year now. Does a good job and dust collection works very well. I would get another one if needed.

I would stay away from the pneumatic sanders unless you have a very large compressor. Sanders are air hogs.

-- Bruce, Boise, ID

showing 1 through 15 of 21 replies

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