The RUPES LHR21ES Random Orbit Polisher and Polishing System by Mike Phillips

This is an email I got from Francesco(marketing for Rupes) that contacted their tech department....

"All our compound are made with a mix of different abrasive: the mix of zephir contains more diminishing than the other but, of course, we cant reveal the percentage because this is part of our industrial process"
 
FivePoint.0 said:
This is an email I got from Francesco(marketing for Rupes) that contacted their tech department....
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Thanks for inquiring Mark and thanks for sharing. You did let them know as a professional courtesy that you were going to share the information they give you on a public forum?

Just a professional courtesy when doing any type of research like this and then abiding by their wishes and a practice I always use. What I will do is ask up front if the information I'm asking for is approved for the public. If they say "no" they still might share information with you if they trust you will abide by their wishes. If you go against their wishes and they find out you'll likely never get the same treatment from them in the future.

Just some food for thought...

Manufacturers in this industry don't as a normal course of business share all their technology. Any little bit they do share is just a bonus.


FivePoint.0 said:
"All our compound are made with a mix of different abrasive: the mix of zephir contains more diminishing than the other but, of course, we cant reveal the percentage because this is part of our industrial process"
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Sounds good. Now that issue is settled.



:xyxthumbs:
 
Mike.Phillips@Autogeek said:
Thanks for inquiring Mark and thanks for sharing. You did let them know as a professional courtesy that you were going to share the information they give you on a public forum?

Just a professional courtesy when doing any type of research like this and then abiding by their wishes and a practice I always use. What I will do is ask up front if the information I'm asking for is approved for the public. If they say "no" they still might share information with you if they trust you will abide by their wishes. If you go against their wishes and they find out you'll likely never get the same treatment from them in the future.

Just some food for thought...

Manufacturers in this industry don't as a normal course of business share all their technology. Any little bit they do share is just a bonus.





Sounds good. Now that issue is settled.



:xyxthumbs:
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This is a good point, Mike. I figured since he didn't tell me how much of each abrasive is in each polish, it couldn't be that top secret to share. However, maybe this should be removed until I ask him of it's ok to go public? What do you think, Mike?
 
Soarer5 said:
Limited power is not a negative. The 21E stroke is almost 3 times of a normal DA, including the Flex at 8mm. This results in the pad cutting so much with each orbit that it doesn't require that heavy pressure like a PCXP or need to be force driven like a rotary/Flex. Keep in mind having such a large surface coverage, doesn't always make it ideal for panels with big dips or bulges. I'll still pull out my GG6 to get in those areas. Hear it from one of the best in the industry, Kevin Brown, just Google "Rupes LHR 21ES Random Orbital Polisher - Features & Benefits."

The machine works great with other pads like Megs MF. You don't have to use only Rupes pads to get the best results. I also use my 21E with the 15E 5" backing plate. I have not used the Rupes polishes yet. Haven't really needed to try them out yet when I'm getting 1 step corrections done with Megs MF Finishing + M205 or bumping it up to M100/M105 for more cut.
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Thank you very much for a very informative post. This answered many of the questions I have regarding the machine. If there's one concern it's longevity/reliability (common problems), but I guess that comes with time.
 
FivePoint.0 said:
This is a good point, Mike. I figured since he didn't tell me how much of each abrasive is in each polish, it couldn't be that top secret to share.

However, maybe this should be removed until I ask him of it's ok to go public?

What do you think, Mike?
Click to expand...


Mark: If I were in your shoes I'd re-contact Francesco and cite this thread with a link to it and let him know that you shared this thinking it would be okay but now you would like to verify it. Let him know no harm was intended.

This is one of those situations where it's hard to put the Genie back into the bottle because so many people have already read your post. I appreciate your offer and idea but again, if it were me I would simply re-contact Francesco and check with him.


Here's a recommendation for everyone reading this thread; anytime you contact a representative from a company and ask for information, if your intent is to share the information publicly then be upfront at the very beginning and let them know this.



:)
 
Mike.Phillips@Autogeek said:
Mark: If I were in your shoes I'd re-contact Francesco and cite this thread with a link to it and let him know that you shared this thinking it would be okay but now you would like to verify it. Let him know no harm was intended.

This is one of those situations where it's hard to put the Genie back into the bottle because so many people have already read your post. I appreciate your offer and idea but again, if it were me I would simply re-contact Francesco and check with him.


Here's a recommendation for everyone reading this thread; anytime you contact a representative from a company and ask for information, if your intent is to share the information publicly then be upfront at the very beginning and let them know this.



:)
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Will do, thanks! :)
 
mike plz show the swirls and then make um go away...
 
axel06 said:
mike plz show the swirls and then make um go away...
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Swirls with polishers are coming up... but first is how to remove orange peel using the Rupes Orbital Air Sander. I have this car coming up for an advanced class where everyone that attends will get to do the final sand and buff.

This is the first cut and now it goes back into the paint booth for more clear...


How_To_Remove_Orange_Peel_008.jpg




There's a time for everything...


1970 Oldsmobile Cutlass Wetsanding Project at Autogeek




:)
 
Oh i see.... Im debating on if i should get the LHR75, im unsure if my compressor could handle it, just thought i'd ask hahah
 
fenderpicks said:
Hey Mike what kind of compressor are u running with the Rupes ?
Mike.Phillips@Autogeek said:
I'll ask Paul as I'm not sure. I know he does have numerous air compressors throughout this shop and I always had a constant flow of air pressure.
fenderpicks said:
Oh i see.... Im debating on if i should get the LHR75, im unsure if my compressor could handle it, just thought i'd ask hahah
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Subscribed...
(Just to find out another/another's: "Compressor point of view")

:D

Bob
 
fenderpicks said:
Oh i see.... Im debating on if i should get the LHR75, im unsure if my compressor could handle it, just thought i'd ask hahah
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You definitely want full PSIG with the Rupes LHR75 3 Inch Pneumatic Random Orbital Polisher for maximum efficiency with the tool.

the below is taken from my article on dampsanding...


Mike Phillips said:
Air Pressure or PSI
Before using an air powered DA Sander check to see what the tool manufacture recommends for Maximum PSI or PSIG.
PSI = Pounds per square inch
PSIG - Pounds per square inch at the gauge
​
I think the main difference between PSI and PSIG is that PSI is not specific to the point of connection for the tool and could mean compressed air pressure at the tank and not the actual gauge and thus the air line feeding your tool. That means there can be differences in PSI by the time it gets to your tool depending upon the shop you work in and how many lines are being fed by the air tank/compressor. The important point is to make sure you don't starve your air tool for compressed air and you don't over feed the tool with too much air pressure.

The air regulator for use in our shop is usually set to around 110 PSI so when I want to use the air compressor I have to decrease the pressure coming out of the line by adjusting the regulator down to 90 PSI

DampSanding35.jpg
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The LHR75 states right on it not to exceed 90 PSIG and requires 320 CFM to operate.

In other words, you want a pretty good size air compressor to run this tool efficiently without robbing it of air or running your air compressor full-on all the time.

Keep in mind, this tool was originally designed for and marketed towards body shops and body shops as a normal setup have large air compressors and reservoir tanks as they use a lot of air tool.


:)
 
Wow, so you dont have to push down until the rotation slows huh? Thats going to be a lot easier on my wrists.
 
KneeDragr said:
Wow, so you dont have to push down until the rotation slows huh? Thats going to be a lot easier on my wrists.
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That is the key difference when using the Rupes system as designed by Rupes. I want to point out that the Rupes blue foam cutting pad is very aggressive looking and feeling with a very large cell opening. (I have pictures somewhere)

Marco told me they invested a lot of time and research into matching the correct compound, to foam formula to the orbit stroke of the tool to get effective correction ability, that is the ability to abrade or remove particles of paint off the surface, (if you want to break it down), without firm downward pressure or in the case of other tools, without 15 to 20 pounds or even greater downward pressure.


I know it's only natural for everyone to want to try all the various pads and products with this tool so I'm just stating what the manufacture states in my position on this forum as a representative of the manufacturer.


:)
 
I did a conversion of liters per minute to cubic feet per minute and this equals approximately 11 cubic feet per minute.

I'll let Bob chime in with more details on what this all means from a practical point of view...


:xyxthumbs:
 
Mike.Phillips@Autogeek said:
I did a conversion of liters per minute to cubic feet per minute and this equals approximately 11 cubic feet per minute.

I'll let Bob chime in with more details on what this all means from a practical point of view...


:xyxthumbs:
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Thanks Mike...

As to CFM's:
I'll just add it's a good rule of thumb to "size" a compressor for
1.5X the CFM's of the air-tool that has the largest demand.

For only the lhr75 usage...~ 15-17 CFM's.

:)

Bob
 
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