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Looks like Makita has a YH as well:
https://www.amazon.com/Makita-MAC700-Big-Bore-Compressor/dp/B0001Q2VK0/ref=sr_1_13?dchild=1&keywords=mechtech+air+compressor&qid=1591744538&sr=8-13
Thought it interesting it's using an input filter as a LPA compressor. Crank case is just a touch different but physically it looks the same. First picture seems to be unboxed and everything installed. Second picture seems to be before the air filter and oil breather are installed. I wonder why the HPA version of the YH's don't have air filters?
https://www.amazon.com/Makita-MAC700-Big-Bore-Compressor/dp/B0001Q2VK0/ref=sr_1_13?dchild=1&keywords=mechtech+air+compressor&qid=1591744538&sr=8-13
Thought it interesting it's using an input filter as a LPA compressor. Crank case is just a touch different but physically it looks the same. First picture seems to be unboxed and everything installed. Second picture seems to be before the air filter and oil breather are installed. I wonder why the HPA version of the YH's don't have air filters?
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Another -- seriously, why do the HPA YH's have no air input filter?
https://www.amazon.com/Twin-Stack-P1IU-A9-Gallon-Portable-Compressor/dp/B0035HYJN4/ref=sr_1_38?dchild=1&keywords=tank+air+compressor+110v&qid=1591747795&sr=8-38
https://www.amazon.com/Twin-Stack-P1IU-A9-Gallon-Portable-Compressor/dp/B0035HYJN4/ref=sr_1_38?dchild=1&keywords=tank+air+compressor+110v&qid=1591747795&sr=8-38
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So today I used my LPA Yong Heng to inflate several pool floats. Worked amazingly well. I got curious and I removed the air input filter I had constructed and then added it back. I removed the foam core filter and added it back as a quick test.
WOW -- I can see why it's called a "muffler" even though it's actually an air input filter. That YH easily increased 33% in human perceived volume and the pitch change was unpleasant.
Why the heck would the current YH MPA line-up still use some stupid sintered brass fitting for an air-input filter?!? It's worthless as an actual air filter, does nothing to reduce cylinder scoring, and only masks the loudness. A simple air filter not only significantly reduces the volume *BUT* also prevents oil blow-by due to cylinder or ring scoring over time. It seems simple to me. I put CE 750 or equiv in mine and the burnt-oil smell is non-existent. Everytime I bleed the system the tanks puke out "rust and smutz" but the more I run it and the more I use it with quality oil the better it is. I almost wonder if the lack of an actual input air filter is the cause of the shiny oil discharge.
Why filter the output air only but not the input air? Makes no sense...
WOW -- I can see why it's called a "muffler" even though it's actually an air input filter. That YH easily increased 33% in human perceived volume and the pitch change was unpleasant.
Why the heck would the current YH MPA line-up still use some stupid sintered brass fitting for an air-input filter?!? It's worthless as an actual air filter, does nothing to reduce cylinder scoring, and only masks the loudness. A simple air filter not only significantly reduces the volume *BUT* also prevents oil blow-by due to cylinder or ring scoring over time. It seems simple to me. I put CE 750 or equiv in mine and the burnt-oil smell is non-existent. Everytime I bleed the system the tanks puke out "rust and smutz" but the more I run it and the more I use it with quality oil the better it is. I almost wonder if the lack of an actual input air filter is the cause of the shiny oil discharge.
Why filter the output air only but not the input air? Makes no sense...
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