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This tool worked great, better than expected! On smooth to semi-smooth surfaces it has long-lasting holding power even after the pump is turned off. We used it on an acid-etched concrete panel and it carried the 120-lb panel with ease with the pump running continuously (which should be expected on this type of surface). They're fairly light weight and ergonomic, which beats the heck out of air cups with hoses and compressors attached.
Ordered this last week after doing a glass install job. Did a bunch or research on different options. This seemed like the most advanced option. I of course was a little sceptical that it would work as good as it was shown. I opened it up and went into an apartment I'm renoing currently. Stuck it to the side of the fridge and was easily able to lift one side with no issues. I have shown it to a fellow tradesman who is thinking of purchasing a set or two for his quartz business he was so impressed with a couple minutes of operation time. I even tried to pick up our one home-made air scrubber. It weighs around 85lbs. The top is rough plywood and was covered in dust. After the machine sucked itself down it was no problem to pick up. After a quick blowdown we managed to pick it up without the motor on.(this being despite the manufacturer instructions to keep motor going on porous materials) just to see if it could live upto the hype. Very impressed and will recommend to anyone I can.
I have a bluestone patio set in stone dust that time to time needs to be reset due to settling. It is a snap to pick up a piece of bluestone with one of these. They never failed. I ordered a second one because I have a few very large bluestones that make it too hard to lift with just one.
Nick Samson –
I recently added the GRABO Erguo S1 to my tool collection, I work in construction so this tool eases my back a lot. Its perfect for handling large awkward materials like drywall and glass panels. The build quality is top notch and it feels sturdy. The GRABO Erguo S1 has made my job much more efficient and less physically demanding. Highly recommend it to anyone who frequently works with heavy materials or has to bend down a lot.