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ive a 50 ltr v twin compressor, its ok but ive a small garage, and i try not to use it as its noisey. Ive asked about how to shut it up here before. Ive tried a few things, but reducing noise = more heat. So more heat = water in output.
Ive just seen these compressors, anyone used one? look really good.
2.5 mins to fill... not so dear...
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ive a 50 ltr v twin compressor, its ok but ive a small garage, and i try not to use it as its noisey. Ive asked about how to shut it up here before. Ive tried a few things, but reducing noise = more heat. So more heat = water in output. Ive just seen these compressors, anyone used one? look really good. 2.5 mins to fill... not so dear...
The spec sates a noise level of 69dba - let me assure you 69dba is far from silent ! |
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69 is like an old MK2 Golf diesel at idle!
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brachunky
Scotland
Posts: 1,314 
Club RR Member Number: 72
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Could you not locate it outside under a small shelter & run a fixed airline into your garage?
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I just sold one like that. It was not noisy in use. Ok inside the garage. I used it to paint a car, but you had to wait for the compressor to catch up, and it struggled with power tools.
Ive replaced it with a bigger one, located outside, with its own little waterproof "shed"
Its between the garage and the boundary line of the garden, so out of the way
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How loud is it outside if the shed and how do you let it breathe ?
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6.5 cfm is pretty poor, it's not gonna keep up with many (or any!) air tools. I've got a 15cfm rig and it's still pretty marginal with impact wrenches, grinders etc.
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Its a trade off. You either have one that is cheap and powerful but noisey. Expensive and powerful but less noisey or expensive and quiet but gutless.
I've got one similar in my garage at home but it's only any good for pumping up tyres and the like and it's so low c.f.m you have to have a big tank even to do that.. it also takes an absolute age to fill the big tank and wont hold pressure for days on end so it's tedious to use occasionally..
I can only really see a use for it in an environment where there is a regular demand for a small amount of air (Like a lab maybe) I don't think they really suit workshops. I think I'd go for a small hydrovane or similar feeding a smallish tank. It depends on your budget and space I guess tho!
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we do maybe have a place outside for the compressor, but I'm not sure if its too big, we have an old brick BBQ, maybe itll fit in there. But i worry to get it quiet enough to be outside, itll get too hot inside.
how loud is yours outside of your compressor house?
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Mine as above is barely audible in the garage. The timber structure around it is well ventilated. As far as noise for the neighbours is concerned, I think as long as I'm not using it on a BBQ day, it's not a problem
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Oct 10, 2018 22:28:41 GMT
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Could a Sanden type piston aircon compressor be used with an existing receiver? The larger ones like SD7V16 used on Ford Galaxy apparently flow up to 160cc per revolution, so by rigging a motor to turn one at a constant 3k RPM, that would work out at a nice quiet 17CFM, wouldn't it? (Would need to be about a 7kW motor though!)
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Oct 10, 2018 22:52:25 GMT
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Could a Sanden type piston aircon compressor be used with an existing receiver? The larger ones like SD7V16 used on Ford Galaxy apparently flow up to 160cc per revolution, so by rigging a motor to turn one at a constant 3k RPM, that would work out at a nice quiet 17CFM, wouldn't it? (Would need to be about a 7kW motor though!) That's a damn good idea. Washing machine motor with a variable speed regulator. Easy peasy. |
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Oct 10, 2018 22:56:42 GMT
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Could a Sanden type piston aircon compressor be used with an existing receiver? The larger ones like SD7V16 used on Ford Galaxy apparently flow up to 160cc per revolution, so by rigging a motor to turn one at a constant 3k RPM, that would work out at a nice quiet 17CFM, wouldn't it? (Would need to be about a 7kW motor though!) Hi, It could do but maybe not for very long. In it's life as part of the A/C system it's lubricated by oil suspended in the refrigerant. You will need to find a way to lubricate it, not impossible but is going to be a compromise. Colin |
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Oct 11, 2018 23:43:43 GMT
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Hi, It could do but maybe not for very long. In it's life as part of the A/C system it's lubricated by oil suspended in the refrigerant. You will need to find a way to lubricate it, not impossible but is going to be a compromise. Colin Sanden piston compressors run an oil bath. There's a plug on the side of the case that serves as a level gauge. I don't know whether the case stays at atmospheric pressure or whether it's exposed to the refrigerant, but I guess the oil could just be replaced with grease if the latter? |
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Oct 12, 2018 11:41:51 GMT
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Hi, The Seven pistons are arranged around the shaft and are operated by a 'wobble' plate on the shaft. The bottom ones will be OK but the top one not so much, grease won't get thrown up to lubricate it. You need something a bit more fluid but not too much it gets sucked past the piston, so something like a 50/50 mix of grease and oil like EP90 or the one shot that goes in LR swivel housings or even CV grease.
Colin
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Oct 12, 2018 16:54:53 GMT
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swash plate. I'm sure they are sealed by oil, i don't think they have seals on the pistons so it would not work?
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Last Edit: Oct 12, 2018 16:56:41 GMT by bmw2101
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Oct 12, 2018 17:32:43 GMT
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i would invest in a collection of battery powered tools tbh.
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Oct 12, 2018 20:16:50 GMT
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oooh! LOL!
At work some lads have invested in their own battery tools, why i don't know! Not only are the ones ive tried not as powerful as air tools, but for example a grinder, its about the same size, plus a battery, so its much bigger and not good for getting into tight areas.
An air nut gun is like £90? a battery one of the same type is like £350?
I have looked into it, air is awesome.
I have worked out that i can fit the compressor in the out house, its part brick and part glass, think itll be ok in the winter but I'm a bit worried in the summer the compressor will get too hot. Will worry about that next year!
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My local tire garage has a big compressor. A slow turning large compressor, not the high speed smaller type, but to quiet it down further until it's really quiet, he has connected and exhaust silencer up to the inlet. It works a treat.
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