Completes large jobs efficiently
Easy to control
Wide range of speed control
Can throw discs before they're worn out
Ineffective dust collection system
Reviewer Photos & Videos
Very good sander, one of the best I have ever used
Bosch GEX 125 AC Professional is in the top two sanders i have ever used. The one that i like more is the Festool 57187, because of the higher stability it offers. Got the Bosch GEX 125 sander as an recommendation from BestRandomOrbitSanders website and I am really thankful to these guys!
Bottom end of the market, but it gets the job done
I am just a DIYer, I knew an orbital sander would help me get a better finish on my projects, but can't really fork out for sanders at the top of the market. I have been really impressed with this unit, the adjustable power output is a nice feature and the dust collection does an ok job, better than my 1/3 sheet makita anyway.
I should say that I didn't get much help from Bunnings Brendale while selecting this, the staff member in the tool shop didn't seem to know too much about the sanders in their lineup. Tho i have also got great helpful service there when buying a drill, guess it's just hit and miss.
Not a bad sander, onto my 3rd base pad as the Velcro wears very quickly, major problem, call center not very helpful,the other problem is with this review, I only needed 22 words but I couldn't post it until I had written 50, also very frustrating, regards Craig, good bye
Throws sanding discs. Velcro not fit for purpose.
As others have found these Bosch 400 sanders throw the sanding discs. Very poor velcro attachment plate used on backing pad. Not fit for purpose IMHO. I've already replaced it twice with the Bosch OEM backing pads, no better, they go bad soon after. Bosch OZ know about this problem yet have not offered to replace these defective parts nor owned up to the issue. Very poor IMHO. Web searches reveal this is a common issue.
Their response is to tell readers to call their helpline where you will be told crap by someone who knows nothing and offered nothing useful as a remedy. I will not be buying another Bosch orbital sander not will I recommend them.
Throws pads after a while
Brought two to renovate the inside of the house. Both throw pads now after working for approx 12 hours. Do not buy useless. The basic function of a sander is to sand this doesn't do that one the pad loses ability to hold pads. Would not buy this type of sander again
Speedy and efficient sander
End grain cutting boards require a lot of finishing. I choose Bosch for price and innovation, their products tend to be a lot better designed then most. Green Bosch products are generally very usable for most people, especially DIYers. If I want a professional, heavy built product then I tend to go for AEG or Mikita. But as I need to use a tool for a long period of time, I prefer something lighter.
This sander replaced a Triton 1/4 sheet orbital sander, it was struggling and died on the job (less then 6 months old). This new sander complete...d the job in half the time. I prefer Diablo papers, they make good products, I use their sanding belts as well. In terms of throwing disks, I would try another brand paper. In regard to dust collection, the same problems occur for all tools, unless you have a good shop vac don't expect the dust collection to work. Belt sanders produce dust at a much greater rate, I've had the cloth bags blow out. I work outside, use a dust mask so I don't need to care too much. Every Bosch tool I've owned so far has been brilliant, I like tools that come with their own cases as I have a place to store everything in the one box. The quality of the case matches those of the other manufacturers. If you generally buy Festool the quality might be a comedown. I don't expect that this sander will replace my belt sander or even my finishing sander, that would be too much to expect. If you have a tough job use a belt sander and the right grit for the job. Very happy and hopeful of a long relationship. If not then I'm sure Bunnings will assist. I'll tape the docket inside the case.
Poorly designed product. Avoid.
I called Bosch customer support when my PEX 270A had the problem of throwing pads. They were not very helpful and suggested I contact customer support via email, so I wrote them the following email:
My PEX 270A orbital sander will not keep sanding discs adhered to the velcro. After a little bit of research I discovered that this is a common problem with this series of Bosch sanders which implies improper design of the material that is used to keep the discs in place.
I refer you to the following 2 sites for reference.
Older Swiss made was a solid machine
Very good machine, but with a disclaimer: I purchased mine a number of years back and it was made in Switzerland, and I have no clue what their quality is like now, so my advice might only be applicable to second hand. But it's a great machine. I've even done absurd things like polish a full terrazzo floor with it. The dust extraction isn't the greatest, and it has chucked a disc once (ever) - after I put it on not realizing it was caked in dust.
The problem with this particular sander is now over. I have spent 7 days drywall sanding with this model. Other than small for the job i am doing, the PEX 400 is brilliant and not once as the disc come off. My main problem is that the vacuum cannot keep up with the sander
This machine is fabulous for the first year. Then the sandpaper discs start throwing off.. so I get a new disc attachment as the surface has gone too smooth and wont hold the sandpapers on. Carry on.. then it happens again..so buy a new disc attatchment.. Carry on.. and the whole disc attatchment starts throwing off. So I buy a new disc attatchment. It throws off as soon as its put on.. then find out that the thread is bare on the centre screw. Another $150 to fix all up apparently..so now have to buy a new sander..All this from a sander thats only 3 years old.
sorry i bought it
decided to save a few dollars on my ROS purchase and thinking that the bosch name meant a reasonable level of quality I bought this sander a couple of years ago.
I am a diy user who tends to make jewelry boxes, picture frames and small items of furniture as well as re finishing old furniture. most of my tools are Makita but I thought with this purchase I would step out of my usual box.
first impressions were that it vibrated more than I expected. stock removal was ok but not great and finish was similarly ok but not great.
another di...sappointment was when one of my sanding discs flew off mid work and examination showed that the hook base pad was now smooth and now longer was able to grip the pads. I shopped around and found a retailer that stocked replacement base pads and fitted it. the problem was that it kept happening with base pad life being distressingly short. it meant that I always had to try to keep a spare base pad in my workshop so I could replace it when the pad in use would suddenly stop gripping the discs in mid job this added significantly to the on costs of the machine and rendered any initial savings at point of purchase very redundant. I appreciate that any hook loop system has a life but this pad life was ridiculously short. the final failure was just over a year after purchase when I plugged it in and it simply refused to switch on. a low grade hum coupled with an unpleasant smell and that was my sanders last hurrah.
Mildly functional but flawed. But disc throwing problem is solved.
I needed to refinish our largish (50 sq mtrs) deck. I use Sikkens Cetol Deck which is an excellent product but you have to reapply a coat every year. You need to re-sand the old surface with 180 grit before painting and my 15 year old finishing sander clapped out on me. I just raced into Bunnings and grabbed this. It seemed reasonable quality and $150 should buy a reasonable sander...shouldn't it? (No it doesn't.)
Things I like: IT NEVER THREW ANY DISCS. THIS FAULT SEEMS TO BE FIXED. It comes with a brilliant sanding disc applicator.... It makes sure you get it centred every time. It's pretty quiet and didn't annoy the neighbours. It seems powerful enough to handle most light duty sanding jobs. It has a dust collector (see below). It seems solidly built. Things I didn't like: Leave the dust collector off. It's hopeless. It should be a bag system. This collector fills up very quickly after which, the dust clags up every little nook and cranny inside the machine making it overheat. You can't connect it to a Shopvac. After about 3 discs use, I had to take the filter box off and clean it which is quite difficult to do. The filter box is poorly designed and hard to push together. After 10 discs, I had to pull the machine apart completely (by undoing 8 screws) and clean out the clagged up sanding dust. It was rock hard! WHY does Bosch put in those stupid star head screws to hold the machine together? It's bad enough that we have to disassemble the machine to clean it so often without making disassembly even harder. I think, leaving the filter off would help stop the clagging up, but you're going to have to clean the machine regardless. Things I've learned: Don't be cheap...I'll buy a heavy duty sander with a proper dust collection system next time. Or even better, hire a heavy duty system with a vacuum collection system. I wouldn't recommend this unit to anyone.
Not sure why there are so many negative reviews for this. Having read some of them, the person has used this sander for jobs it was not intended. My own experience is very positive. I have never had a disc throw or dislodge itself. Granted, the dust collector is essentially useless but my $79 ryobi shop vacuum fits it perfectly (also bought at good old Bunnings). I make furniture and built in robes, wall panels etc and this sander gives me smooth, even finishes perfect for painting, staining etc. I only mark it down for the dust collector.
It's a cheap, lightweight random orbital, and you get what you pay for. I build beehives and cabinets - this sander makes my arm numb after a half hour. The "micro filter" box is useless, although with a wrap of duct tape you can get the dust port to connect with a standard shopvac hose. The thing throws discs like that's it's primary function. I've replaced the pad three times and it still throws discs, and once it's thrown a disc, the hooks on the pad die and you need a new pad. Fork out a bit more cash for something better. I wish I had.
great for DIY
I have only used this a few times but it does work very well if used correctly. I have read bad reviews of this product, most attributed to sandpaper 'flying off'. To test this I applied more downward pressure than needed and, sure enough the paper became detached. These machines only need very slight pressure to work correctly and I cannot fault the sanding capability with all grades of paper. It appears well made but if you are a professional tradesman I would buy the Blue Bosch. all in all this does the job for an excellent price.
As with most companys these days-they sell before they proof test.
So - I have the disc problem as well.replacement is too costly. the motor and all works, so will continue to badmouth the company to all who listen. Will do a stickon velcro and use till it dies - then not replace, Bosch has lost my good will ; I expect more from my suppliers.
Squealing, rubbish bearings
Some years ago I purchased 3 new pex270s for fairing a fibreglass boat hull....epoxy filler and highbuild. All 3 were throwing pads after less than 5 hours use (Not continuous use..4 machines in total between 2workers). I purchased decent aftermarket pads, cut them down and cut the holes. Problem fixed. However, within about 10 to 12 hours use , the armature Bearings failed on all 3 machines ...excessive squealing and no power. I have all 3 for Bosch to inspect or take back if they want some good pr for a change. I stripped them down , blew th...em out, and added lubricant which temporarily fixed them, but was difficult ( sealed bearings) wasting a lot of down-time. So I bought 3 cheap Ozitos to do the job instead, which performed perfectly and i am still using to this day.
Throws sanding discs and is very dusty but does an excellent job when it works.
Very disappointed with this machine in two ways - I am on my second base plate (genuine bosch) at a cost of 39.00 and will not be buying another one. The dust filter is useless and falls off easily. The machine when working does an excellent job but the frustration of dusting off the plate and trying different sanding pads including genuine bosch (expensive) and throwing out more than I can count because they fly off and in turn become so dusty they won't stick and again clog up the plate velcro. Unfortunately I am probably going to resort to buying a cheap brand as they do offer a good warranty usually and will replace if anything goes wrong. Thankyou
Won't hold sanding disks
DO NOT BUT THE BOSCH PEX 400 AE. Any tool that costs over $150 should not be this sensitive. After using it for 3 months it throws all brand new disks immediately after application. Highly disappointing. The cost of replacement pads is prohibitive.
And also the design doesn't allow to attach it to a shop vac so be ready for dusty dusty as the microfilter is a bit of a gimmick.
Didn't last 6 months!
I have had this sander less than six months and I am already ready to scrap it. Like many other users have described, this sander keeps throwing pads. On top of this, the filter is useless. It catches some of the dust for a while, then releases it again in a cloud when you change the position you are sanding in.
This sander's lack of longevity is a surprise as I am not using it that regularly. I am a home handyman and only use it about once a fortnight/month. Even so it has lasted less than six months. What a piece of rubbish. I should have gone the Makita equivalent or even the Ozito as some other people have suggested.
Throws pads and emties the contents of the filter over the user.
Questions & Answers
Sander runs with no load but slows to a stop when placed on work??
Sander runs with no load but slows to a stop when placed on work??
Yes I have had that sort of things happened before once after using 6~7months.
But I thought that happened my casual worker press too hard down.
So I just replaced.
It was under $100 not like $260 or even $700 like fesco?.
It is cost effective way.
Hello, I had the same issue, opened it up to check if the bearing was in working order but the bearing was fine. I couldn't figure out what was wrong with my sander, very disappointed since it was relatively new and not used too much. Check YouTube , it might help you. Cheers
Hi, shorted out speed controller and a lot better, but not perfect
- The Bosch Random Orbit Sander has a 370W motor that gives it the power to deliver fine finishes on medium and large work surfaces.
- It has variable speed control which lets you choose the perfect speed for the job you’re doing and the material you’re sanding.
- The power tool has an ergonomic design that lets you work horizontally, vertically, and overhead, giving it the versatility needed for all kinds of jobs.
- It can perform both sanding and polishing, both for flat and curved surfaces, so you can use the same tool throughout your whole restoration job.
- It’s suitable for working on wood, plaster, painted, polished, and varnished surfaces.
- The sander can go from 4,000 to 26,000 oscillations per minute.
What did reviewers think of the Bosch Random Orbit Sander?
Reviews were well and truly mixed about Bosch’s random orbital sander. Among the positive feedback, the sanding tool’s power output and variable speed control was praised, with reviewers saying that it helped them get medium to large-sized jobs done in a relatively short amount of time.
The sander’s stability was also appreciated, with reviewers noting that it was easy to control and reasonably lightweight.
A notable pain point among negative reviews had to do with the discs, with some reviewers staying that the sander threw them off the head well before they had worn out - this made using the tool inconvenient and costly for them.
Another pain point was that the dust collection system was ineffective - reviewers said it didn’t catch much dust, and frequently fell off the tool.
|Release date||Nov 2012||Mar 2010||Mar 2010|
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