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AMETEK
PM MOTORS
This page is for
information only!
These were surplus motors that made good little generators but they have not been made
since the 1950's.
I have developed a far better solution for you
and I will direct you to it now.
Or click this link to see the replacement PMA
When you feel you have
graduated from the experimenting stage to the I'm ready to make serious power
stage, then check out the TLG Wind Generator line by
clicking
here.
Since everyone keeps asking questions about the Ametek PM Motors
I thought it was time to see what I could find.
I searched the web and I have found the following data on the
different Ametek motors. I've learned some things along the
way as well, like Ametek made several different versions of the 40
and 50 volt motor (maybe more). All I know about these motors
to date is here.
One thing I have found to be true, the best PM
motor for use as a generator is the one that has the highest rated
voltage at the lowest rpm. Meaning that if you have a PM motor
that took 120 volts DC in and only turned the shaft at 300 rpm, you
would know that it would put out some serious voltage as a
generator.
Windings make a difference in the amount of amperage they can
produce. If you had a motor with windings the size of hair
your output will be very low in amperage because the fine wire
cannot carry the amperage.
I was not able to find exact Ametek part numbers but it seem that
you can tell which one it is by the size of the motor and the
difference in the shafts. All the motor have the Nominal
voltage printed on them. Measure your motor and compare your measurements
to this chart to know which Ametek motor you have.
I did not take the reading, I simply found the data to share.
Some pictures of the Ametek motors below.
Ametek 20VDC
KC8079F7
|
• Nominal
voltage 20 VDC
• 10/15 VDC
• No load amps 0.47
• Shaft 5/8"
diameter. x 11/16" long
• 4" diameter.
x 7" long
• 550 RPM @
20 VDC
• Weight. 13 lbs. |
Ametek 30VDC
080987K7
Output
Data
|
• Nominal
voltage 30 VDC
• 12/24 VDC
• No load amps 0.15
• Shaft 5/8"
diameter. x 1 7/8" long
• 4" diameter.
x 4 7/8" long
• 325 RPM @
30 VDC
• Weight. 7 3/4 lbs. |
Ametek 37VDC
Also known as
Ametek 36VDC & 38VDC
NO GOOD
|
• Nominal
voltage 37 VDC
• 12/24 VDC
• No load amps 0.35
• Shaft 5/8"
diameter. x 2.0" long
• 4" diameter.
x 4 7/8" long
• 2100 RPM @
37 VDC
• Weight. 8 lbs. |
It seem that the most current version floating
around of the Ametek 36 VDC motor has the same voltage to rpm
ratio as the Ametek 30, but it does NOT have the output like the
Ametek 30 has. It will work, but only as a trickle
charger. (around 1 to 1.5 amps expected). |
Ametek 40VDC
030689F7 |
• Nominal
voltage 40 VDC
• No load amps 0.50
• Shaft 5/8"
diameter. x 1 1/4" long
• 4" diameter.
x 4 7/8" long
• 1050 RPM @
40 VDC
• Weight. 11 lbs. |
Ametek 40VDC
210988F7
Below Average
|
• Nominal
voltage 40 VDC
• No load amps 0.55
• Shaft 5/8"
diameter. x 2" long
• 4" diameter.
x 7" long
• 1600 RPM @
40 VDC
• Weight. 12 lbs. |
Requires
too many rpm to produce power in winds of less than 20
mph.
If you want to use this one gear it up. |
| Ametek 50VDC |
• Nominal
voltage 50 VDC
• No load amps 0.40
• Shaft 1/2"
diameter. x 1 1/4" long
• 4" diameter.
x 4 7/8" long
• 1200 RPM @
50 VDC
• Weight. 11 lbs. |
| Ametek 50VDC |
• Nominal
voltage 50 VDC
• No load amps 0.60
• Shaft 5/8"
diameter. x 1 7/8" long
• 4" diameter.
x 7" long
• 1700 RPM @
50 VDC
• Weight. 12 lbs. |
Ametek 50VDC
061087F7
GOOD
|
• Nominal
voltage 50 VDC
• No load amps 1.0
• Shaft 5/8"
diameter. x 2" long
• 4" diameter.
x 7" long
• 1800 RPM @
50 VDC
• Weight. 12 lbs.
Has a 1" x 1/2" shaft out the
backside |
Although
it requires higher rpm's to produce power, it has a higher
amperage curve in output which makes up for the higher rpm
needed.
Click here to see a
picture of the one I say is the best of the 50's
Note the shaft out the back |
Ametek 50VDC
NO GOOD |
• Nominal
voltage 50 VDC
• No load amps 0.60
• Shaft 1/2"
diameter. x 1 1/4" long
• 4" diameter.
x 4 7/8" long
• 2100 RPM @
50 VDC
• Weight. 11 lbs. |
| Ametek
60VDC
NO GOOD! |
Not
even worth typing the info. (that bad) |
| Ametek 72VDC |
• Nominal
voltage 72 VDC
• No load amps 0.41
• Shaft 5/8"
diameter. x 1 7/8" long
• 4" diameter.
x 7" long
• 1800 RPM @
72 VDC
• Weight. 12 lbs. |
Ametek 99 VDC
010300F6
THE BOSS
EXCELLENT
Output
Data
|
• Nominal
voltage 99 VDC
• No load amps 0.59
• Shaft 5/8"
diameter. x 2 3/16" long
• 4" diameter.
x 9" long
• 535 RPM @
99 VDC
• Weight. 16 lbs. |
ALL GONE. No surplus that I
have been able to find.
I have not ran across one for close to two years. If you
find one congratulations to you! ;) |
| |
|
When you feel you have
graduated out of the experimenting stage to the ready to make serious power
stage, then check out the TLG Wind Generator line from the menu on the left.
Click on the images above to view larger pictures.
Don't want to mess with building your own? See what
TLG can do for you.
See what I have found on
some other types of DCPM motors.
Back to Tips and Tricks
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