Among the best electric powered automotive sanders and also polishers available on the market is the Porter Cable 7424XP.
If this is your first time in purchasing a polisher then don’t be concerned because the Porter Cable 7424XP is very easy to use. It won’t burn off any of your car’s paint or clear coating. Additionally, this unit comes with an ergonomic design making it easy to hold on to.
The Porter Cable 7424XP Dual Action Polisher is a beefed up, more powerful version of our most popular dual action polisher. Remove more paint imperfections at a faster rate! The Porter Cable 7424XP Dual Action Polisher has all the user-friendly features of the original Porter Cable 7424, but a 4.5 amp motor enables enhanced performance and durability. Achieve smooth, swirl-free results with the safe, reliable Porter Cable 7424XP Dual Action Polisher.
Polish out swirls, water spots, oxidation, and scratches faster than ever before, while still having the peace of mind that the machine will not burn the paint. The enhanced power is delivered via the safe, random orbital motion that is proven to remove imperfections without burning.
Additional features of the Porter Cable 7424XP are the counter balance and a 2-position (left or right) removable side handle so you can have greater control and flexibility. This auto polisher employs a lightweight design and accepts spindle thread accessories. The sander is made up of ball bearing construction that has been tested for heavy industrial use.
One minor complaint from reviewers about the Porter Cable 7424XP is that it does not come with a backing plate and as a result, you won’t be able to attach different types of polishing pads. But buyers easily solved this minor issue by purchasing a hook and loop pad. This unit is also a bit heavy so long time usage will make your arms and hands numb.
Customer Reviews
By A. Beckstedt (Indiana)
I can’t believe I detailed without this thing
This I am going to call an orbital buffer is fantastic. I can’t believe I detailed without this thing before. I got this for detail in my body shop for exterior details and am very happy with the performance. Gone are the swirl marks from inexperience using buffers. Normally when setting up an entry detailer I could not trust them with a buffer for some time in fears of swirl marks and burn through on the customers paint but not with this thing. It does vibrate something ferociously when at high speeds but its an orbital and is to be expected.
It will never replace an actual buffer for the purpose of getting rid of serious scratches but light scratches are nothing for this tool. In fact if you listen closely you can hear it laughing at them. LOL Just kidding.
+
Very easy to use
Variable speed
Easy to hold on to
Eliminates swirls
-
Kind of loud
Doesn’t come with adapter plate
Using it for a long time will numb your arms and hands
I was going to buy a lower priced unit but I am glad I went with the Porter Cable
By S. Crawford (Walla Walla, WA)
Disappointed
This review is from: Porter-Cable 7424XP 6-Inch Variable-Speed Polisher (Tools & Home Improvement)
I like Porter-Cable products. In this case, I am very unhappy. After an hour of reasonable use, the polishing pad came totally apart. Try to find a replacement at the big box stores or hardware dealer–impossible. I must order it online–the pads structure seems unique and proprietary to the polisher. Now, my project is on hold while I wait for another $15 Porter-Cable pad. Also ordered a third party velcro disk with adaptor, so I won’t be bent over when/if the new disk is equally poor. Count on the polisher costing much more in the long run.
By dsfa (Mira Mesa, CA)
Newbie machine waxing
This review is from: Porter-Cable 7424XP 6-Inch Variable-Speed Polisher (Tools & Home Improvement)
I’ve had people telling me to buy a Porter Cable (or equivalent) for a while now, but was a bit repulsed by the price. One day I just got sick and tired of hand waxing my Nissan Titan, just too damn large, hate killing an entire day. I broke down and finally bought the Porter Cable not really knowing how well I will use it. It’s a bit overkill for just waxing, but so many people swear by this power tool. I used the Chemical Guys 6″ Backing Plate and Meguiar’s 6.5-Inch Soft Buff Foam Finishing Pad. Well, after using it once, I was amazed as to how fast I waxed the truck. It also didn’t leave behind the small wax specks that I normally leave behind when I do it by hand. I didn’t have the attachments for removing the wax, but found it quite easy just removing the wax manually. Hopefully, when I have time, I will try to actually polish my other car.
Porter Cable 7424XP Assembly and Review
by Ivan Rajic
I have been using the Porter Cable Random Orbital Buffers ever since I first got into detailing over seven, maybe eight, years ago. It was THE machine to have and it was extremely easy to use. Now, we have all heard how great the Porter Cable 7424XP Random Orbital Buffer (PCXP) performs and how easy it is to use, but a few weeks ago I started thinking about it a different way. After looking over all my detailing supplies one day mid August, cleaning, counting, etc., I thought back to the days when I was first buying tools and products. I thought about how much money I had already spent, how much I was still going to spend, and how many headaches I went through figuring out not only what to order, but also how to use it. The PC came up while thinking about this stuff since I had an impossible time figuring out which backing plates to purchase, which counterweight to install and how to best utilize this great machine (back then it was the PC 7424).
Thus this article… I wanted to go over the basics, the 1+1=2, the baby steps to using your first polishing machine… No, my intention is not to insult the intelligence of every quality detailer and knowledgeable enthusiast out there
, rather to hopefully help that one lost soul that might be searching the web with these simple questions, as I once did.
First off, here’s a photo of what you get with the PCXP order:
As you can see, mine is a bit “customized” and is showing its age, but still runs as good as new after about two years of fairly heavy use. The polisher comes with a white pad permanently attached to a backing plate, a side handle and a wrench. I have tried out the white pad that comes with the PCXP and while it does a fine job, something along the lines of a Lake Country white pad, I never liked using it and prefer to utilize the versatility of the PC by using different sized pads and backing plates. The tape you see around the polisher head is there just in case I come across an “oops” during detailing. I’d rather be hitting paint with painters tape than bare metal, as I’m sure anyone else would. I can’t remember if I picked this up from another detailer or just did it myself, but it’s common sense either way and something I’d highly recommend. The tape around the power plug is leftover tape from taping the PCXP cord to an extension cord many, many times.
Looking closer at the PCXP, we find the counterweight and threaded female end that allows the use of many different sizes of backing plates and, with that, different sized pads.
As you can see in the photo, it says to use 5 inch pads only. This would be the “5 inch counterweight”. There’s also a Porter Cable 6 inch Counterweight available through Detailed Image. Since I mostly use the PCXP with 4 inch pads (sometimes also with 5.5” pads) I never found a need to even try the 6 inch counterweight. Also, I did try both counterweights a while back with the older Porter Cable polisher, and I couldn’t tell much of a difference when using the 5 or 6 inch counterweight with 6.5 inch pads. Another reason I never personally looked into the 6 inch counterweight. That said, I would definitely suggest picking up both as it’s only an extra $5 and you can see what best fits your style of detailing.
Moving on… once you have everything together, you need to put it all together. Since the threaded end rotates freely, it’s better to put the wrench on it before screwing in the backing plate.
Next the backing plate goes in. It screws into the threaded end fairly easily…
The backing plate should be tightened fairly well, but there’s no need to overdo it since the spinning action of the polisher would theoretically keep it from ever coming off.
Next, the side handle goes in. The handle can be threaded into either side of the polisher, which is extremely helpful not only for users that have a preferred hand, but also for using the polisher with the handle on different parts of a vehicle.
The handle simply screws into the side and shouldn’t be tightened too much. I’ve had a few handles on different polishers fail due to over tightening. Whichever way the bolt is attached to the handle (some are melted within the handle plastic while others are glued to a groove inside the hollow part of the handle), over time it can fail due to the stress from over tightening. So it’s better to lightly tighten it every few polishing sessions than break it within a few months!
And that just about covers the very simple assembly guide of a PCXP. Here you can see the polisher completely assembled and ready for action.
Now that the simple stuff is out of the way, here’s a bit about how I like to utilize the PCXP. First off, here’s what I use with the polisher, as well as what I’d recommend for any enthusiast detailers when ordering a polishing package:
* Porter Cable 7424XP Random Orbital Buffer(with wrench)
* Lake Country 5 inch Backing Plate
* Lake Country Backing Plate for 4 inch pads
I personally don’t like to use the handle with the PC as I feel it vibrates way too much (I mean that the handle vibrates, not the machine due to the handle being used), so I keep it off. Also, since I use the PCXP mostly with 4 inch pads, there’s really no need to utilize a handle in my situation. As I mentioned above, the white pad that comes with the PC simply sits in a garage drawer, so it’s never used.
The stuff I do use a lot is the 4 inch backing plate and, when needed, the 5 inch backing plate with larger pads. As you can see in the photos, I like to mark the backing plates with a permanent marker. This is done to ensure that I know the pad is spinning and how fast it’s spinning. In certain situations the PC doesn’t have enough rotational force to spin the pad, so it helps to know when it stops spinning and revise the plan of attack for that, usually small, section.
Well that brings me to the end of my mission for this little article. As simple as it is to assemble the PCXP, I hope this article does answer a question someone may have while reading the blog and I hope readers take something away from it.
As always, thanks very much for reading and hope you enjoyed it!
by Ivan Rajic
Technical Details
* Random-orbit, swirl-free sanding/polishing action
* Electronic variable-speed dial from 2,500-6,800 OPM
* Includes 6-inch proprietary counter balance for use with 6-inch sanding/polishing pad
* Accepts 5/16-inch to 24-inch spindle thread accessories
* Features a 2-position (left or right) removable side handle for greater comfort and control
Product Description
The Porter-Cable 7424XP 6-inch polisher features a 4.5 amp motor for high overload protection and random orbit, swirl-free sanding/polishing action with an electronic variable-speed dial that operates at 2,500-6,800 OPM. Other features include a 6-inch proprietary counter balance and a two-position (left or right) removable side handles for improved control and versatility. The 7424XP features a compact lightweight design and accepts 5/16-24 spindle thread accessories. This sander is made with 100% ball-bearing construction that has proven reliability under industrial use. The Porter-Cable 7424XP 6-inch polisher comes with a polishing pad, wrench, and operating manual.


















