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I’m a newbie to the industrial machine game and I’m feeling really defeated. I have a Nakajima 341L (Juki 1341 clone cylinder arm machine) with a new Enduro SM600-2P. I’m having the usual uphill battle with figuring out a new machine (I’ve owned several domestics and can sew fabric on those just fine) but I’m feeling like even adjusted all the way down (which I’ve done) I’ll never be able to keep up with this machine’s speed. I’ve read some peoples posts about welding speed reducers which is totally outside my wheel house. Do I look for one? Or a new motor? I don’t even know what I’d be shopping for. The man who sold it to me is incredibly nice and sells and services machines- he’s been out here once and didn’t even charge me, says he’s really invested in making sure it’s up and running- but I don’t know what to do. Do I keep trying? Throw some more money at this problem and buy another motor? There’s no returns it was a Craigslist purchase. I’ve got some serious buyers remorse. I want to love this but I’m mostly just cussing and stubbing my toe on it.

I have an Adler 167, now in good condition. The clutch motor was really old, too weak (½ hp) and very difficult to control and noisy like a jet engine. After carefully reading about motors in the forum I decided to look for a servo motor. In search of a servo I read a lot of comments in the forum. Really helpful!! In short I found that servo motors are quiet and easy to control but weak at start up unless you want to pay a lot of money. Next step was to search the web for motors and there was one that caught my attention, Enduro. The only motor with decent documentation available to download and review! http://www.endurosaves.com/download-PDFs.php One passage in the manual for SM645-2P stood out: “provides a high starting torque even at low speed or from a complete stop.”. This was the deciding factor for me since I am many times sewing thick naturally cured leather and I need to go slow. This motor comes with needle positioning system which would be nice to have. Ordered from Universal Sewing Supply https://www.universalsewing.com. The first thing that strikes you is the weight (4,5 kg) compared to my old clutch motor (22 kg). Can this motor really match the old? Well let´s see. First problem was to fit the motor to the table. It would really be nice to have a foot print in order to drill the holes. Why not put it as another pdf on the web? Well two new holes drilled from the underside, one old was perfect to use. Put on a 50mm pulley and fitted the motor and found that the belt was too long. 2nd problem a new belt 2 inches shorter and now the test! The on/off buttons are really good quality and gives you a good feeling, sturdy and distinct. OK here we go; ON. Very low noise, almost nothing and when not running nothing! Setting up the motor control was a little bit cumbersome but worked out. Why can not manufacturers put nice old fashion rotary dials instead of these digital push button systems? I guess it would be more expensive but I would be more than happy to pay a little bit extra. Anyway you can set up; running direction, starting speed (I have set to 7, 9 is slowest) and max speed (set to 6 i.e. 600 rpm & with the pulley 50/100mm means 300 stitches per minute max). When you wind the bobbin it takes some time unless you change the top speed. This is a minor problem and I don´t mind to wait and relax a little bit. The needle positioning system has to be fitted to the central screw on the hand wheel. Sorry the supplied screw does not fit. My machine is too old and a new screw I have been unable to find. The machine can be set up to run at really low speed, even too low for me. Using the hand wheel is really easy. You don´t have to depress the pedal at all. Then when running, the control is excellent. You can easily sew stitch by stitch, even stop wherever you want. There seems to be almost no moment of inertia so when you release the pedal the machine stops immediately! Nice! How about the torque? Well I have now been sewing for a month and it easily goes through anything I have been feeding the machine, up to 6 glued layers of serraje (its like nubuck), 7-9 mm thick. Easy, even stitch by stitch. The other day I had to sew two layers of naturally cured belt leather, 3,5 mm thick each. No problem at all. Curiosity took over. Three layers of old vegetal leather, crazily hard and in total 11 mm! Did not think on that the machine does not have this capacity. Sorry old buddy! The needle Schmetz 140/22 134-35 LR and thread nylon 10. Did it work? Ooohhh YES! Like a hot knife in butter, stitch by stitch. Really impressive! Does this have to do with the neodym magnets? I have no idea but surely it works beyond my expectations. I recommend this motor. If you need even more torque there are 1 kW motors.