Bought new machine that 220V 50HZ - Will it work in US?

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Discussion Overview

The discussion centers around the compatibility of a 220V, 50Hz machine imported from China with the 60Hz electrical system in the United States. Participants explore concerns regarding the operation of the machine's motor, gauges, and control electronics when subjected to a different frequency than specified.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Exploratory

Main Points Raised

  • One participant notes that the motor is rated for 50Hz but was told it would work fine at 60Hz, raising concerns about potential damage to the machine's electronics.
  • Another participant suggests that the motor may run faster at 60Hz, but questions whether this will affect the gauges and control computer.
  • Some participants express skepticism about the manufacturer's claims and recommend verifying the machine's performance with existing users in the U.S.
  • There is mention of the machine being a packaging device, with no UL approval noted, which raises safety concerns.
  • Several participants discuss the nature of the motor, with one suggesting it might not be synchronous and could behave differently at 60Hz.
  • One participant mentions that the machine's capacitor start motor may operate at both frequencies, but the implications of running it at 60Hz remain uncertain.
  • Another participant speculates that the electronics may not be adversely affected if they convert AC to DC, but this is not confirmed.
  • Concerns are raised about whether timing pulses derived from the mains could impact the electronics.

Areas of Agreement / Disagreement

Participants express a range of opinions, with no consensus on whether the machine will operate safely and effectively at 60Hz. Concerns about the motor's performance and the potential impact on electronics remain unresolved.

Contextual Notes

Participants note the lack of available documentation and references for the machine in the U.S., which complicates the assessment of its compatibility with 60Hz power. There are also uncertainties regarding the motor type and its behavior under different frequencies.

bigboyjoe
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I got a piece of machine imported from China and after inspecting the motor it was 50HZ after looking at the specs on the motor itself. I asked about this from the start and was told it would have 60hz motor. Now aftering contacting the manufacture they said it would run just fine and to try it.

My question is the machine has some guages (temperatures, amp, etc.) along with a little matrix (I believe what they call it) computer that controls the function of the machine.

From reading the forums it looks like the Motor would run fine just 20% faster using 60hz instead of 50hz. Now my question is will this effect the electronics of the guages and computer? I don't want to plug it in and just "try it" if it will simply burn up the computer and electrical equipment.

Anyone have any experience with this? I know just about 95% of all factory machinery comes from China so I am sure people have been faced with this problem before.

I contacted a manufacture of a VFD and was told this is just for motors and wouldn't work on the entire piece of Machinery. I was also told the Frequency Converter is probably not what I want as they are more for larger industry and cost 10-25k.

Any insight or even direction in which I may go to find out this information would be great!

SPECS:

220V, 50HZ, 1.5KW
 
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bigboyjoe said:
I got a piece of machine imported from China and after inspecting the motor it was 50HZ after looking at the specs on the motor itself. I asked about this from the start and was told it would have 60hz motor. Now aftering contacting the manufacture they said it would run just fine and to try it.

My question is the machine has some guages (temperatures, amp, etc.) along with a little matrix (I believe what they call it) computer that controls the function of the machine.

From reading the forums it looks like the Motor would run fine just 20% faster using 60hz instead of 50hz. Now my question is will this effect the electronics of the guages and computer? I don't want to plug it in and just "try it" if it will simply burn up the computer and electrical equipment.

Anyone have any experience with this? I know just about 95% of all factory machinery comes from China so I am sure people have been faced with this problem before.

I contacted a manufacture of a VFD and was told this is just for motors and wouldn't work on the entire piece of Machinery. I was also told the Frequency Converter is probably not what I want as they are more for larger industry and cost 10-25k.

Any insight or even direction in which I may go to find out this information would be great!

SPECS:

220V, 50HZ, 1.5KW

I wouldn't just "try it" either. If they have a 60Hz version available, make them swap it.

Does this machine carry a UL Approved logo? What is the machine exactly? Can you link to the manual or other information?
 
I do not think they have 60HZ version available. The owners manual and brochure I got all says 50HZ.When I asked they said it was 60HZ and put it on the Invoice as 60HZ. Of course the motor comes through 50hz and Owners manual states 50hz.

That being said buying Machinery in China means you pretty much get what you get. Nothing I can do to go back on them.

Now for the UL sign I have not seen this anywhere on the machine.

The machine is used to package materials and heat seals them together. So it fills bag with material and then seals it.

There is no manual online or anything like that.
 
bigboyjoe said:
I do not think they have 60HZ version available. The owners manual and brochure I got all says 50HZ.When I asked they said it was 60HZ and put it on the Invoice as 60HZ. Of course the motor comes through 50hz and Owners manual states 50hz.

That being said buying Machinery in China means you pretty much get what you get. Nothing I can do to go back on them.

Now for the UL sign I have not seen this anywhere on the machine.

The machine is used to package materials and heat seals them together. So it fills bag with material and then seals it.

There is no manual online or anything like that.

Hmmm. At the very least, I would ask them for at least 3 references of companies that are using that machine in the US, preferably near you so you can go visit them. I wouldn't fire up that machine (pun intended) until I knew that it had a proven track record of working here.
 
I asked before I purchased if they had one of these machines in the US and they do not.

There is not 1 of their machines in the US.

They had it setup and tested in China (pictures/video of it) but that of course was on 50HZ.

I understand the motor will spin faster, not a problem. The question is will the computer and guages be affected?
 
Probably not a synchronous motor so it might not run any faster.

What machine is it and what sort of motor?
 
The machine is a Automatic Granular Packaging Machine Model DXD-K40II.

Does not say much about the motor on my litature. I did take a picture of the plate on the motor as shown below:
 

Attachments

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After Googling the model of the motor here is what I found:

MODEL: JY7134
OUTPUT W: 370
CURRENT A: 4.0
VOLTAGE V: 220
SPEED (r/min): 1400
Eff. (%): 62
Power Factor: 0.64
Locked rotor torque rated torque: 2.5
Locked rotor current A: 21
Pull-out torque Rated torque: 1.8
 
Google found this but the page won't open here..

220 50 / 110 60 may refer to that machine or not? Will be links or switches to alter for 110.

Granule Packing Machine - Products for Granule Packing Machine ...China DXDK40II Automatic Granule Packing Machine ... Wash: 5.0Kg b) Dehydration: 4.0Kg 2) Voltage/ Frequency:220V/50HZ;110V/60HZ 3) Dimensions: 725 x 425 x. ...
test.tootoo.com/buy-Granule_Packing_Machine/ - 181k -

It is a capacitor (150uF) induction motor.. Hard to say what the wrong frequency will do.. Most induction motors 'slip' when loaded...Not locked to the frequency.
 
Last edited:
  • #10
About half a Horse Power that.. Try it ... see if it gets too hot.
 
  • #11
I was able to find what you found, but I believe that was for a different machine.

Everything I found (from 3-4 sites) says 220V/50HZ
 
  • #12
You might be able to change the motor for a 60 Hz one.

Not sure whether the capacitor is needed for running or just starting.
 
  • #14
Really hard to say what would happen on 60Hz.. The frequency suggests a higher speed but inductive and capacitive reactances will be different. Might actually slow down.

I don't know much about motors. I am a radio/telecoms engineer.
 
  • #15
IMO. The electronics will probably not cause a problem to operate at 50Hz; the incoming ac is probably converted to dc to run the electronics. As to the motor, should run okay also. You're going to have to run it sometime to find out. Again in my opinion.
 
  • #16
Unless there are any timing pulses derived from the mains.
 

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