[Emc-users] Semi OT: Chinese servo motors Yifeng branded

Discussion:

Leonardo Marsaglia

2017-05-31 18:46:17 UTC

Hello to all.

Looking for a good but cheap servo motor I came across an Ebay user from
China that sells two brands mainly. One is Delta, wich I really trust and
I've used their products. The other one is Yifeng wich is a lot cheaper
than delta but I don't know anything about them.

I attached a PDF with the prices of the Yifeng combos (servo+ÂŽdrive) but I
don't have the list with the prices of the Delta brand. Anyway just to have
an idea here is a link to a Delta servo from this user on Ebay:

http://www.ebay.com/itm/1-5KW-Delta-B2-AC-Servo-Motor-Driver-220V-Set-Kit-ECMA-E21315RS-ASD-B2-1521-B-/191559765539?hash=item2c99da0e23:g:pwYAAOSwzaJX7bhj

And a similar servo motor and drive of the Yifeng brand is more or less
USD352 (You can take a look at the PDF attached)

So what do you think? The user seems of trust judging by the feedbacks he
has.

My doubt is if this Yifeng brand are worth a try. I can firmly say the
Delta ones are a very good product.

Thanks as always!

--
*Leonardo Marsaglia*.

Nicklas Karlsson

2017-05-31 20:03:00 UTC

Permalink

If you must have a very good product Delta is of course the first choice but Otherwise I would have tried the cheap one. Especially if you may need more later.

On Wed, 31 May 2017 15:46:17 -0300

Post by Leonardo Marsaglia
Hello to all.
Looking for a good but cheap servo motor I came across an Ebay user from
China that sells two brands mainly. One is Delta, wich I really trust and
I've used their products. The other one is Yifeng wich is a lot cheaper
than delta but I don't know anything about them.
I attached a PDF with the prices of the Yifeng combos (servo+´drive) but I
don't have the list with the prices of the Delta brand. Anyway just to have
http://www.ebay.com/itm/1-5KW-Delta-B2-AC-Servo-Motor-Driver-220V-Set-Kit-ECMA-E21315RS-ASD-B2-1521-B-/191559765539?hash=item2c99da0e23:g:pwYAAOSwzaJX7bhj
And a similar servo motor and drive of the Yifeng brand is more or less
USD352 (You can take a look at the PDF attached)
So what do you think? The user seems of trust judging by the feedbacks he
has.
My doubt is if this Yifeng brand are worth a try. I can firmly say the
Delta ones are a very good product.
Thanks as always!
--
*Leonardo Marsaglia*.

Chris Albertson

2017-05-31 23:20:39 UTC

Permalink

The very first step in making a decision should be to download the user
manual for the Yifeng product and see if it really is what you need. That
table does not have enough information. Then if you find there is no user
manual, is the product cheap enough that you can buy samples and test them?

I'm going through the same issue with smaller stepper motors about 1/3rd
the size of the Delta you linked to. The best lowest price product might
even be good, might even be made in the same factory as the brand name but
no usable documentation so there is no way to know other than buying samples

On Wed, May 31, 2017 at 11:46 AM, Leonardo Marsaglia <

Post by Leonardo Marsaglia
Hello to all.
Looking for a good but cheap servo motor I came across an Ebay user from
China that sells two brands mainly. One is Delta, wich I really trust and
I've used their products. The other one is Yifeng wich is a lot cheaper
than delta but I don't know anything about them.
I attached a PDF with the prices of the Yifeng combos (servo+´drive) but I
don't have the list with the prices of the Delta brand. Anyway just to have
http://www.ebay.com/itm/1-5KW-Delta-B2-AC-Servo-Motor-
Driver-220V-Set-Kit-ECMA-E21315RS-ASD-B2-1521-B-/191559765539?hash=
item2c99da0e23:g:pwYAAOSwzaJX7bhj
And a similar servo motor and drive of the Yifeng brand is more or less
USD352 (You can take a look at the PDF attached)
So what do you think? The user seems of trust judging by the feedbacks he
has.
My doubt is if this Yifeng brand are worth a try. I can firmly say the
Delta ones are a very good product.
Thanks as always!
--
*Leonardo Marsaglia*.
------------------------------------------------------------
------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Emc-users mailing list
https://lists.sourceforge.net/lists/listinfo/emc-users

--
Chris Albertson
Redondo Beach, California

theman whosoldtheworld

2017-06-01 07:50:50 UTC

Permalink

something i buy servo from china ... there are 3 possibility:

1) the seller send all kit Delta brand (motor+drive+cable)
2) the seller send Delta Drive but china motor
3) the seller may be is a guy that buy by Hong Kong import office, whitout
tax, and sell the goods on ebay.

In my experience china motor is quite good, not excellent but good.
SOmetime you can intercept some mitsubishi old or new contractor so the
motor is really good. Some time you can intercepts other european/americans
contractor, so the drive is very good. Normally in motor side you find
yaskava quality (in china yaskawa motor layout is well know & copy).

But you are buying from ebay ... so that the Chinese seller is not that it
is particularly encouraged to be correct.

Any how delta is good choice and in iTALY THE PRICE IS EQUAL TO THE PRICE
ON EBAY + EBAY TRANSPORT COST + LOCAL TAX. So if you buy on ebay you pay:
755USD + 20-70USD transport cost by air + 755*1.22 as local tax + import
tax 10-50USD = 1000-1200USD more or less .... so for 1-3 pcs is not a good
businnes ... choice a local (italian, france, portuguese ... as eusurplus
sites ... seller) seller, more or less same price, + good assitance.

bkt

Post by Chris Albertson
The very first step in making a decision should be to download the user
manual for the Yifeng product and see if it really is what you need. That
table does not have enough information. Then if you find there is no user
manual, is the product cheap enough that you can buy samples and test them?
I'm going through the same issue with smaller stepper motors about 1/3rd
the size of the Delta you linked to. The best lowest price product might
even be good, might even be made in the same factory as the brand name but
no usable documentation so there is no way to know other than buying samples
On Wed, May 31, 2017 at 11:46 AM, Leonardo Marsaglia <

Post by Leonardo Marsaglia
don't have the list with the prices of the Delta brand. Anyway just to

have

Post by Leonardo Marsaglia
http://www.ebay.com/itm/1-5KW-Delta-B2-AC-Servo-Motor-
Driver-220V-Set-Kit-ECMA-E21315RS-ASD-B2-1521-B-/191559765539?hash=
item2c99da0e23:g:pwYAAOSwzaJX7bhj
And a similar servo motor and drive of the Yifeng brand is more or less
USD352 (You can take a look at the PDF attached)
So what do you think? The user seems of trust judging by the feedbacks he
has.
My doubt is if this Yifeng brand are worth a try. I can firmly say the
Delta ones are a very good product.
Thanks as always!
--
*Leonardo Marsaglia*.
------------------------------------------------------------
------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Emc-users mailing list
https://lists.sourceforge.net/lists/listinfo/emc-users

--
Chris Albertson
Redondo Beach, California
------------------------------------------------------------
------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Emc-users mailing list
https://lists.sourceforge.net/lists/listinfo/emc-users

Leonardo Marsaglia

2017-06-01 21:39:49 UTC

Permalink

Thank you guys.

I asked to the seller for manuals or any kind of documentation to start.
Then may be I give it a try and purchase a little one to test it out and
see how it works.

I'll let you know whatever happens.

Post by theman whosoldtheworld
1) the seller send all kit Delta brand (motor+drive+cable)
2) the seller send Delta Drive but china motor
3) the seller may be is a guy that buy by Hong Kong import office, whitout
tax, and sell the goods on ebay.
In my experience china motor is quite good, not excellent but good.
SOmetime you can intercept some mitsubishi old or new contractor so the
motor is really good. Some time you can intercepts other european/americans
contractor, so the drive is very good. Normally in motor side you find
yaskava quality (in china yaskawa motor layout is well know & copy).
But you are buying from ebay ... so that the Chinese seller is not that it
is particularly encouraged to be correct.
Any how delta is good choice and in iTALY THE PRICE IS EQUAL TO THE PRICE
755USD + 20-70USD transport cost by air + 755*1.22 as local tax + import
tax 10-50USD = 1000-1200USD more or less .... so for 1-3 pcs is not a good
businnes ... choice a local (italian, france, portuguese ... as eusurplus
sites ... seller) seller, more or less same price, + good assitance.
bkt

Post by Chris Albertson
The very first step in making a decision should be to download the user
manual for the Yifeng product and see if it really is what you need.

That

Post by Chris Albertson
table does not have enough information. Then if you find there is no

user

Post by Chris Albertson
manual, is the product cheap enough that you can buy samples and test

them?

Post by Chris Albertson
I'm going through the same issue with smaller stepper motors about 1/3rd
the size of the Delta you linked to. The best lowest price product might
even be good, might even be made in the same factory as the brand name

but

Post by Chris Albertson
no usable documentation so there is no way to know other than buying samples
On Wed, May 31, 2017 at 11:46 AM, Leonardo Marsaglia <

Post by Leonardo Marsaglia
Hello to all.
Looking for a good but cheap servo motor I came across an Ebay user

from

Post by Chris Albertson

Post by Leonardo Marsaglia
China that sells two brands mainly. One is Delta, wich I really trust

and

Post by Chris Albertson

Post by Leonardo Marsaglia
I've used their products. The other one is Yifeng wich is a lot cheaper
than delta but I don't know anything about them.
I attached a PDF with the prices of the Yifeng combos (servo+´drive)

but

Post by Chris Albertson
I

Post by Leonardo Marsaglia
don't have the list with the prices of the Delta brand. Anyway just to

have

Post by Chris Albertson

Post by Leonardo Marsaglia
has.
My doubt is if this Yifeng brand are worth a try. I can firmly say the
Delta ones are a very good product.
Thanks as always!
--
*Leonardo Marsaglia*.
------------------------------------------------------------
------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Emc-users mailing list
https://lists.sourceforge.net/lists/listinfo/emc-users

------------------------------------------------------------
------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Emc-users mailing list
https://lists.sourceforge.net/lists/listinfo/emc-users

--
*Leonardo Marsaglia*.