CowBoyOUTLAW

Our motor do not use buit-in gear box. No need of it

The minimum speed is 50 RPM only, and the torque of motor is enough to drive any extra heavy duty sewing machine, why with gear reducer? For the high price, easy to explain: other 800W and 1000W servo motor in today market cannot drive CB4500 withour speed reducer, but our 750W motor can; Other motor use Hall Effect sensor, we use optical sensor; If you tight the machine belt, other motor frame maybe bend, our motor frame will not.... For the NPS, I might be wrong, in China we mainly sell to manufacturers who need high speed, all motors to them must be with needle positioner. Jog dials, needle position and 1/2 stitch adjustment, they are optional for people who need it. "For a decent servo to run a 441 sewing heavy leather you only need to keep it simple" -- thank you, really appreciate it!

It may be a cultural difference. We need the hand-on experience from leather workers to improve the quality of the motor, so we carefully analyze and explain these suggestions. Is there anything wrong? We tested ISM SV-71 650w servo motor, it can't directly drive extra heavy duty leather sewing machine like CB4500, if without speed reducer

WOW, are you servo engineer? Few people can talk about optical controls deeply. Now we use 600 line encoder, the minimum speed on CB4500 is about 10 stitch per miniute. If use 1200 line encoder, in theory the speed can down to 5 SPM.

Thank you very much for sharing, we have already achieved all the points mentioned above😁😁

We have been looking for over 6 months, we have contacted all motor supplier include HO HSING and ISM.... Even ingnore durbility and perfomance, no servo motor can directly drive CowBoy CB4500 if without speed reducer. Kinedyne HM-750T and HM-750L Energy-saving Motor use Hall Effect sensors, HM-750SL and HM-750S servo motor use optical sensors

Needle positioner is necessary, most servo motors with it. In Italy, Kinedyne HM-750SH is replacing Efka servo motor, that's why our price is higher than other Chinese cheap motors.

Only for your information, before we sell our industrial sewing machine with cheap servo motor arround Au$ 140, too many troubles, that's why we start to make servo motor. In Italy and Sweden, they use Effka motor before, now use Kinedyne, saving a lot, instead of spending more..

Thanks, to manufacturers in China, India, Indonesia and other Asian countries, we use Kinedyne HM-750L low cost motor, because they need efficiency, instead of "low speed", compare to other Chinese motor, the advantage is high durability. Yes Kinedyne HM-750SH low speed high torque servo motor is ideal for leather sewing machine. At least, the motor can greatly improve the performance of our leather sewing machine.

I am not trying to promote servo motors here. We want to make the best servo motors for the leather industry, and leatherworker.net is the club of world's top leather players...I need your experience

Thanks for your opinion! Before making Kinedyne servo motor, we sell other brand "servo motor" for our leather sewing machine! The fail rate of board is about 7%. We spent a lot of time and money for service after sale! Cluth motor is too bad for leather sewing machines, so we produce Kinedyne 750L economical servo motor, it is durable motor with good price, but the minimum speed is 300 RPM, customers still need to buy speed reducer! Why waste money to buy speed reducer? We developped Kinedyne HM-750SH low spee, high torque servo motor. Finally we spend less money with high performance servo motor!!

Our competitor is Ho Hsing i90 and Efka servo motor, not Reliable or Sailrite😁

All modern servo motors should be brushless, we developped speed controller and JOG, soft sart (slow start) for better controling speed, especially for beginner.

Yes, digital servo motors will lose torque at low speed, and the motor will vibrate or noise when start up, because the torque is not enough. When get change, please test Kinedyne HM-750SH sero motor from Ryan or Toledo Industrial Sewing Machine, I think you will be surprised with torque and speed control. Really appreciate for your information. Can you test 10 stitches per minitue? See if smoke came from the needle! Now we use 45mm pulley, the lowest sewing speed of CowBoy CB4500 is 10 SPM. If the needle still smoke, we will try to use smaller pulley or modify the program. And when thin leather, we have speed controller that allow you to increase speed in a second. Thanks again for your informtion about the lowest speed!