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Juki Exceed 600 Motor Amps
Butter Bean
Butter Bean
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Subject: Juki F600 Motor Amps Date: 1/29/13 5:32 PM

I know someone has answered this before but I can't find it in these threads I've been looking for hours. I think tholtz answered it but I am not sure. I even looked in the reviews for this machine. Can someone look on the back of the machine and see if it is 1 amp or 1.5 amps?
Thanks, Butter Bean
-- Edited on 1/30/13 8:32 AM --

Soolip
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In reply to Butter Bean <<


Date: 1/29/13 6:30 PM

1 amp. Most zig zag machines are 1 or 1.2 amps. This number has very little to do with the piercing power of the machine.

clr56
clr56
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Date: 1/29/13 10:12 PM

Then what does, for piercing power? I like to sew different things that are thick like a potholder with insulated batting and one layer of cotton batting and also my cotton theory quilting ends up being quite thick and I am afraid I will ruin my nice machines sewing stuff like that. I messed up at least one machine already (Pfaff Hobbycraft 1034) making a denim throw that did not even have batting. I'd love to know what you would recommend. I do own a Singer 15-91, but I need a zig zag stitch for cotton theory quilting. My Berninas have worked okay, but my cotton theory instructor always has to get the timing adjusted on her TOL machine, hence my reservations on using my good machines for too much work like that.

clr56
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Date: 1/30/13 8:57 AM

Sorry for getting off track, my F300 is .9 amps.

Soolip
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In reply to clr56 <<
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Date: 1/30/13 11:38 AM

Primarily speed. Industrial machines are more powerful in part because they sew faster. More powerful motors play a part, but the motors for industrial machines are significantly more powerful than those used in domestic machines. .5-1.2 is the average for household machines, while industrial machines are 4-10.

Think of it this way. If you drive your car into a brick wall at 10 mph, you won't break through. If you are going 100 mph, you'll probably drive right through the wall. The horsepower of your motor is not relevant here, but how fast you are able to drive. Now, you WOULD be able to knock the wall over if you were going 10 mph and your car had an engine that was about 20 times more powerful than it is but then most cars are not equipped with this kind of motor, simply because they don't need to be.

Domestic sewing machines have motors that are powerful enough to move their parts. Really, nothing else is required for most sewing tasks. .5 to 1.2 amps is sufficient, and does not indicate the piercing power of a machine. The more friction points in the actual mechanism of the machine, the more amps is required to move the needle bar, feed dogs, etc. My old .5 amp 201-2 sews more powerfully than my modern 1 amp Elna, simply because it's a simpler mechanism and there's less the motor has to move.

Now, if you got a sewing machine with a 5 amp motor, you WOULD feel a difference. Not so much between a .5, 1 or 1.2, or even 1.5 amp motor. This number has very little meaning for the consumer, but there are a lot of people here on PR that seem to think it does.

My suggestion is that if what you are sewing routinely is making your machine struggle, get an industrial, or semi-industrial machine. Domestic sewing machines are not designed for routine sewing of leather and canvas.

You could also try a vintage Kenmore (158 series) mechanical. Zig zag machines with cams (either internal or removable) are more reliable than modern computerized machines because the swing of the needle (and direction of the feed) is determined by a cam and steel cam levers. Electronic and computerized machines rely on tiny step motors for this, a much flimsier arrangement and hence all the timing issues people have with these machines. It is almost impossible to mess up the timing on a mechanical machine.


-- Edited on 1/30/13 1:56 PM --

clr56
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Date: 1/30/13 1:22 PM

Thanks for explaining this, it clears a lot up for me. I do like the older sewing machines as much as my fancy ones. I think I will look into getting my Elna Supermatic running. I was lucky to buy it with the zig zag cam. She just needs some TLC, she sounds good running, I just have not been able to get it to stitch yet. I know there are resources online for this. Thanks again for the information.

Butter Bean
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In reply to Soolip <<


Date: 1/30/13 1:41 PM

Thanks, Soolip!
This makes sense to me. So really what we need to be looking at is how fast the machine can sew? Is that right. My Janome 6600p can sew 1000 stitches per minute, so it should have good piercing power? Is this what you are saying. I have been trying to find a good vintage machine for heavy duty items. Is a Kenmore 148-19372 or Singer 401a good ones for this? I see them on ebay but I don't have pay pal and really don't want to buy something I can't see in person. I was thinking of the Juki only because everyone seems to be saying it can handle thick seams well.

Soolip
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In reply to Butter Bean <<


Date: 1/30/13 1:54 PM

Most home sewing machines sew around 1000 spm, so buying a machine because it sews 100 stitches more per minute is not really going to help you much.

The Kenmore 158.XXXX are great mechanicals, and most of these also have forward-reverse (stretch/automatic) stitch capability. I don't know anything about the 148s or the particular model you mentioned.

The Singer 401s are good machines, but the problem is the slant needle which often deflects when sewing thick fabrics. The slant of the needle actually reduces the potential piercing power of these machines. You could try a Singer 237, if you can find one in good condition.

Butter Bean
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In reply to clr56 <<


Date: 1/30/13 1:55 PM

Thanks clr56, for looking and seeing what it is. Butter Bean

Jennifer Hill
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In reply to Soolip <<
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Date: 1/30/13 7:20 PM

Quote: Soolip
Primarily speed. Industrial machines are more powerful in part because they sew faster....

Sorry, I disagree. The most powerful industrial machines stitch very slowly. There is generally a trade-off between power and speed. The fastest ones are for sewing lightweight materials.

Penetrating power is a function of the machine's internal design, not its motor. The rating on a SM's motor is always higher than it needs for it to operate as designed, but that doesn't mean it can actually use the extra power. If it were as simple as attaching a bigger motor, then ANY sewing machine would be able to stitch together 2x4s.

Jennifer in Calgary
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