Sander for rapid removal of stock.

Phils said:
How does the 150/8mm deros compare to the ro150 as regards stock removal?

In non geared mode the RO is slower than the DEROS or the ETS/EC.
-150/5
I have a DEROS and like it.

What I really think you want is a DEROS 7.5-mm, or the Rupes (or maybe it is DEROS) in the 12-mm stroke.

I am no expert with boats, other than seasickness.
Can some sort of scraper get mist of the paint off?
 
The RO 150 is far more powerful.

If we look at the numbers the RO 150 is a 720 watt sander, the Deros 500 watt. That's 31% more current the Ro150 sander could draw over the Deros. Even tech larger sanding stroke of 8 verse 5 just cant make up for raw power advantage.

If I thought the Deros removed the stock as fast as the RO 150 I would not have returned it. In side by side tests the RO is faster in my shop. Actually, the Deros was only marginally faster than the Festool EC and not enough to make me keep it and the Festool EC is only a 400 watt sander.

I never tested the 8 stroke because I dont want additional sanding it would require for me. I am not even sure if I could get that 8 stroke, I never looked in to it. I find it hard to believe the 8 stroke could overcome 30% more power in any sanding mode though.
 
But at only a mere 1 kilogram the large eccentricity of an 8 mm DEROS must make it a contender for overhead work.  In my own instance I'd willingly sacrifice outright speed for weight saving every time.  The Mirka's 1 kg weight comprehensively trumps the 2.3 kg Rotex.  For me that's the difference between intermittent use use only with frequent rests and an all-day proposition.  Mirka sanders are specifically designed for mesh abrasives, which is I gather is your preferred type.

Anecdotally, DEROS users are generally pretty happy with their purchase, with the exception of the plug-in power cables, which apparently are even less reliable than the Festool equivalent!  They apparently aren't even covered by the tool's warranty either, in my estimation a huge black mark against the brand.
 
Dovetail65 said:
The RO 150 is far more powerful.

If we look at the numbers the RO 150 is a 720 watt sander, the Deros 500 watt. That's 31% more current the Ro150 sander could draw over the Deros. Even tech larger sanding stroke of 8 verse 5 just cant make up for raw power advantage.

If I thought the Deros removed the stock as fast as the RO 150 I would not have returned it. In side by side tests the RO is faster in my shop. Actually, the Deros was only marginally faster than the Festool EC and not enough to make me keep it and the Festool EC is only a 400 watt sander.

I never tested the 8 stroke because I dont want additional sanding it would require for me. I am not even sure if I could get that 8 stroke, I never looked in to it. I find it hard to believe the 8 stroke could overcome 30% more power in any sanding mode though.

Both in starndard mode?

Everyone I have heard on the subject says that the RO "when not doing geared" is slower, and that a lot of the power drives the head.

In geared mode of course it it faster. Maybe not as good as a RAS.

Are we comparing apples and apples (In non-geared mode)?

Also I thought the DEROS is 450W, not 500W.
( in 110v land, of if one is adverse to a paddle switch, the ETS/EC is pretty much the same as the DEROS)
I have the 5650 unless the motor is working the extra watts are no advantage. I have to really push into it to get the full watts. (And I do not)

The RO is 3600-6000 rpm, the DEROS is 4000-10000. (Advantage DEROS)
The bigger the stroke the better for removal, and I assume both were 5-mm?

As I do not have the sanders to compare, these are somewhat questions.
 
Hi Phils. 

I know nothing removing anti-foul coatings! 
So might barking up the wrong tree - so I'll dive in and see what you think. 

Might abrasive sheets tend to clog up easily - if so, maybe slow you down? 

Picking up on what Holmz said - wonder if scraping first would be helpful? 
Be much easier to then smooth down what's left? 

What about one of those infra-red thingies? http://tensiduk.com/product-list/speedheater-infrared-paintstripper 
There are accessories available to have the heater be close to the surface,
whilst removing adjacent coating. 

I'll leave it at that - you get the idea. 

Let us know how you get on - your experience will be worth knowing about.   

Richard (UK)
 
Back
Top