Completes large jobs efficiently
Easy to control
Wide range of speed control
Can throw discs before they're worn out
Ineffective dust collection system
Money making sander
Backing plate with nylon hook velcro is a designed to fail and have you buy new heads. Head gets hot due to friction (so don't press even a small amount !!) then the hooks change shape so the sanding discs don't stick and get thrown. I'll research and check the design more carefully before next purchase. Machine works fine when new head but doesn't last long. I'm on my 3rd and its getting expensive to run this machine. Unexpected.
Purchased for $200.00.
This sander sands like a boss
I bought a new Ryobi sander specifically for this large job i had to do - sanding 5 light years of cornice glue off an entire ceiling off a sprawling house that we were going to put another ceiling straight over top of. Anyway the Ryobi died after a couples of hours so I drove straight to Bunnings and replaced it with the Bosch. OMG unbelievable difference, the Bosch ripped through the old cornice glue like it was made from meringue cake base. The discs do come off every now and then which is a bit annoying, but weirdly for me they were coming off when the sanding discs were ready to change. The filter seems to work well but the design is crap for getting it on and off (hence the 4 stars)
I would buy another in a heartbeat
Purchased in June 2018.
I used the PEX 300 AE with Diablo Sandnet 80 grit discs to take the saw marks off 3 metre, narrow, rough-sawn oregon battens. Using a high orbit rate of 5 or 6 (as suggested in the manual) and using only the weight of the sander resulted in the disc flying off after about 2 or 3 metres of sanding. The discs removed the saw marks effectively and the disc surface showed virtually no wear, but I lost 3 discs in this way (at $3.00/disc) and damaged the hooks on the connecting pad that came with the discs. Many of the loops on the back of the dis...cs were torn. I tried Flexovit 60 grit discs and the first disc also flew off after several minutes and would not re-attach. The wood and disc did not feel the least bit hot. I lowered the orbit rate to 4 (medium) and the next disc lasted considerably longer, about 10 metres. As expected, the removal rate was reduced and I had to sand over the same area more often to remove the saw marks. The dust collection was not effective with the Sandnet discs on orbit rate 6, the dust went everywhere, but it collected more dust with the Flexovit discs on 4. I think that the orbit rate of 6 on the Bosch PEX 300 AE is too aggressive for the hook and loop pad and discs, at least when used on rough timber.
Purchased in February 2019 for $89.00.
Great for what it is...
This is a decent little sander. Not high end, but not a high end price so that's ok. As a working sander, it really does that. It works. I have almost no issue with it. Solid performer. Highly recommend, provided one thing... You better not be too worried about how the dust catching system functions. Because basically it doesn't. The thing falls off with the slightest bump, but it's ok because it pretty much never caught the dust.
I'm still fine with it - i just use it outside and use a mask. Something I do for most work, so no issue for me. So I still rate it a 4 star for price etc - just know what you are buying.
failed speed contoller
after a couple of times using this model the speed controller failed and the machine would not run lower than half speed, then it failed altogether, replacement part is $44 from https://www.toolspareparts.com.au/bosch-pex-300-ae-3603ca3040-spare-parts.html I should have returned at the first instance of failure but you know what its like just wanting to get the job done and move onto other bits so did not follow up on warranty, wish I had, also the dust catcher is pretty much useless, now replaced with Ryobi, so far so good.
Bad customer service.
Go to Bosch Australia try to get spare parts cant order through them what a joke think may have to use different manufacturer didn't mind the tools but if you cant get help from them what's the point cant order through dealer as the cost of replacing the sanding pads all the time gets to dear with dealer mark up and takes to long to get part in.
Poor dust catching function
the sander works OK but the dust catcher is useless, dust clouds are the order of the day. Even when I cleaned the filter and took care to refit it to the machine, it still emits dust from around the lid. Checked that its fitting Ok but no change. Disappointing dust catcher.
Bought new from Bunnings with DIY use intended. Has perhaps an hour to hour and a half of use so far. The hook and loop system has all but given up - throws discs even when not under load. Appears to be a well documented issue with no answers from BOSCH.
RRP for replacement hook and loop (velcro) pad is about $35 AUD. Machine is only worth $76ish AUD. False economy to bother replacing the pad.
The sad thing is the sander actually does a really good job when fit for purpose....
Im now off to the shops to invest in a decent machine.
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.
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.
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.
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.
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.
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.
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
Great little DIY sander
I do a lot of DIY projects & this little sander has proved to be quite the work horse, with plenty of power to get the job done. It makes a boring job quick & easy. It is reasonably light weight, with a comfortable grip & easy to handle, the sanding discs are quick to change, & the speed is altered with just a brush of the thumb.
Light-weight, powerful, easy to use.
Must take care changing the sanding disc, as the velcro grip on the discs is stronger than the glue to the base of the machine.
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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