High torque servo motor for heavy duty leather sewing machine

[dikman]

20 hours ago, CowBoyOUTLAW said:

What's wrong? The clutch motor will be noise as long as you feed the electricity. It is the advantage of sevo motor. 

 . I couldn't find the head-scratching emoji.

 

 

Edited October 8, 2022 by dikman

[dikman]

10 hours ago, kgg said:

I would say you have a disconnect between the Engineering guys and the Advertising guys.

kgg

 That would never happen - much!

Obviously no-one bothered to check the advertising before releasing it.

[kgg]

3 hours ago, dikman said:

Obviously no-one bothered to check the advertising before releasing it.

They would have been better to have a done a pre release review like a lot of computer companies do when they are about ready to release new hard drives/ chip sets / coolers / motherboards / etc to qualified reviewer users.

kgg

[dikman]

I guess it's no different to many of the manuals and handbooks that are released with goods made in China. What would it cost them, in the scheme of things, to hire someone who is actually fluent in English to proof-read them prior to printing?

[Constabulary]

1 hour ago, dikman said:

I guess it's no different to many of the manuals and handbooks that are released with goods made in China. What would it cost them, in the scheme of things, to hire someone who is actually fluent in English to proof-read them prior to printing?

or as a dealer / distributor to sit down for 1 or 2 hours and compile one. That would reduce customer headache and questions - I guess.

[RockyAussie]

16 hours ago, Constabulary said:

That would reduce customer headache and questions - I guess

This is only a problem if one were feeling any need to answer those questions..................

 

18 hours ago, dikman said:

I guess it's no different to many of the manuals and handbooks that are released with goods made in China. What would it cost them, in the scheme of things, to hire someone who is actually fluent in English to proof-read them prior to printing?

You misunderstand kind sir......If these manuals appeared insufficiently stupid, for one the phrase WTF may never have come into place. Secondly the people might make the mistake and think that what is written there might sometimes be correct and then rely on that information.

[CowBoyOUTLAW]

18 hours ago, dikman said:

I guess it's no different to many of the manuals and handbooks that are released with goods made in China. What would it cost them, in the scheme of things, to hire someone who is actually fluent in English to proof-read them prior to printing?

Very good point, I agree with you, most English manuals of Chinese machines are not easy to understand, even in Chinese 5 stars hotels, “Chinese English” is the most common problem. We try to provide easy to understand English, but not native. 

[CowBoyOUTLAW]

17 hours ago, Constabulary said:

or as a dealer / distributor to sit down for 1 or 2 hours and compile one. That would reduce customer headache and questions - I guess.

Thank you, Ryan O. Neel from Ohio, USA will translate the English instruction manual.  Now he cannot come to China, so we are still wating...

[Gunnarsson]

About the current, electric motors (depending on type, controlling electronics and so on) can draw a very high inrush current initially, but that settles down to a far lower current once rpm and load stabilizes. The picture is from a relative compression test of (probably) a small car engine, where the starter current is measured to see if all cylinder compression events puts an equal load on the starter = they all draw the same current. As you can see it settles at around 120A, but the initial load of getting a bunch of heavy engine parts moving gives a peak current around 500A.

Don't know the exact construction of the servo motor, but 160A isn't impossible. Not very interesting though, as the inrush current lasts such a short time, what it settles down to is more relevant.

[Northmount]

2 hours ago, Gunnarsson said:

Don't know the exact construction of the servo motor, but 160A isn't impossible. Not very interesting though, as the inrush current lasts such a short time, what it settles down to is more relevant.

You are missing the fact that this is as noted above, a 220VAC motor, not a 12VDC motor.  Leads to the AC motor are only about #14 cable versus the heavy battery cables used on 12VDC engine starting motors.

Typical AC induction motors draw up to 7x running current during starting.  Circuit breakers and fuses for such loads work on both time and current.  Their application will be designed/based on time overcurrent.  This is to protect the supply lines, not the motor, though it may protect the motor in many cases.

160A at 220VAC is way out of range for a sewing machine motor, an obvious mistake in publishing the specifications.  This would fry the supply leads in a few seconds if not instantly.  Would also drag the voltage down for the building and possibly the neighbours before it blows.  No one would be happy with this!