×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Forced Ventilation of 1000-5000W brushless servo motors
2

Forced Ventilation of 1000-5000W brushless servo motors

Forced Ventilation of 1000-5000W brushless servo motors

(OP)
Hi guys,

I am planning to operate 4x Kollmorgen servo motors each with a rated power of 1000-5000W. Since the motors will the most time be stationary while providing a constant torque, I want to add a separate, external ventilation system to each one of these.

I can't find any adeqaute ventilation for this task. Even the motor providers do not seem to offer external ventilators for cooling their motors as a separate option.

Any tips/help would be appreciated

Cya

RE: Forced Ventilation of 1000-5000W brushless servo motors

I don't work with anything like that, but I went to the website to see if there was info.

I didn't see any minimum speed rating for any of the motors.

One of the motors explicitly mentioned a continuous stall torque rating
http://www.kollmorgen.com/en-us/products/motors/se...
"1 - 79 N-m of continuous stall torque"

I doubt this helps, but just posting what I saw poking around at the website.
Please feel free to disregard...

=====================================
(2B)+(2B)' ?

RE: Forced Ventilation of 1000-5000W brushless servo motors

If I recall those servos often have no cooling fans nor any ventilation holes being IP6(something). That would infer they do not need cooling to do what they do.

However that does NOT mean you can let the ambient they are operating get very warm. I believe that is your only requirement - keeping the ambient reasonably cool.

Mike will be around to correct my theory shortly. LOL

Keith Cress
kcress - http://www.flaminsystems.com

RE: Forced Ventilation of 1000-5000W brushless servo motors

itsmoked, I would only correct you if you stated something not quite true; since you & electricpete are spot on, no corrections forthcoming! HA!

I assume the motors in question are AKM models, in which case, yes, they are totally sealed and IP65 minimum with IP67 a small fee option. Others are available to full xplsproof ratings, or open rotor/stator sets or shaftless, or or or; prob not the ones discussed here I am guessing.

Yes, these motors have a continuous STALL torque rating; two in fact: one @ 60 degree C temp (includes ambient), and another at 100C. So they do not require any additional cooling, assuming they are mounted to a typical mounting surface and are in free air.

Now if one mounts them inside a sealed enclosure 1" larger than the motor itself, then the ASSUMED free air mounting would not be valid.

OP, give more details why you feel need or desire for additional cooling air?

www.KilroyWasHere<dot>com

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources