On 01/25/2017 03:07 AM, Klemen Živkovič wrote: > I just checked: > http://www.automationtechnologiesinc.com/products-page/ac-servo-motors/the-ac-servo-driver-ac-servo-motor-400w-set > > to replace my 12Nm steppers - the torque on this motor is 1.27 Nm (they > rate is as high torque servos) - and is not near 12Nm, that my nema42 > steppers now provide. > Guess I need gearbox but this would introduce backlash - or there are some > brushless servos with around 12Nm torque available? Peak torque is 3.8 nm. > Any ideas who can provide 12Nm servos if they exist at all? > > You can look for Fanuc motors. The old 1-0SP is rated at 15 nm peak. The (alpha)M6/3000 is rated at 6 nm continuous stall, so should do 12 nm peak easily. The (alpha)6/2000 and (alpha)6/3000 have similar ratings.
And, your NEMA42 steppers may have 12 nm HOLDING TORQUE, but they rapidly lost torque as the speed increases. Depending on the driver, you may only have 6 nm torque available at somewhere between 100 - 300 RPM. Jon Jon ------------------------------------------------------------------------------ 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
