The EKM servo motor series is the military version AKM industrial servo motors: the EKM motor provides best dynamic performance due to low inertia, compact design, low cogging and high flexibility regarding winding selection and design.

In the military version we offer 6 flange sizes from 57 to 188mm and several stack lengths in each size with a holding torque from 0.43 to 53Nm are available. The torque range of two adjacent sizes overlaps so that it is possible to select between two inertia values to meet optimum match with your application.

The EKM servo motors have been designed to meet the requirements of military users, therefore military connectors, extended temperature range, enhanced corrosion protection and higher shock and vibration ratings are standard in this motor series. The standard feedback is a 2-pole resolver.

Do you have technical questions or need a quote?

Contact us today to talk to an experienced MACCON engineer!

Most important properties:

  • 3 phase, permanent magnet brushless servomotors
  • size / pole count: 2 = 6-pole, 3 = 8-pole, 4 and bigger = 10-pole
  • high dynamic response
  • nominal torque from 0.4 to 53Nm
  • supply voltages from 75 to 650Vdc (various winding options, for 24V versions please contact us)
  • integrated 2-pole resolver for sine commutation
  • smooth shaft (no keyway) with threaded hole in the front side
  • IP67 (also for shaft with shaft seal)
  • enhanced corrosion protection by usage of stainless steel shaft and special coating for the housing (resistant against various chemical substances)
  • completely sealed connectors according MIL-C-38999 standard
  • thermal sensor in the winding
  • insulation system designed for operation at 3x480Vac (exception AKM1x: 230Vac
  • shock: tested to MIL standard MIL-STD-810E, method 516.4, procedure 1
  • vibration: tested to MIL standard MIL-STD-810E, method 514.4, procedure 1
  • options: keyway, custom windings, gearbox, brake, etc.

Data table EKM-Motors

Modelholding
torque
Nm
n at 75Vdc
rpm
n at 160Vdc
rpm
n at 320Vdc
rpm
n at 560Vdc
rpm
Kt
Nm/Arms
Ke
Vdc/krpm
R
Ohm
L
mH
flange
mm^2
length
mm
weight
kg
rotor
inertia
kg.cm²
no. of poles
EKM21-C0,43-2.5008.000-0,3027,513,019,057 - 5989 - 910,910,116
EKM21-E0,452.0007.000--0,1614,43,45,257 - 5989 - 910,910,116
EKM21-G0,454.0008.000--0,109,31,442,257 - 5989 - 910,910,116
EKM22-C0,793-1.0003.5008.0000,615520,03657 - 59108 - 1101,180,166
EKM22-E0,8231.0003.5008.000-0,3228,85,221057 - 59108 - 1101,180,166
EKM22-G0,8332.5007.000--0,1816,51,773,257 - 59108 - 1101,180,166
EKM23-C1,08-1.0002.5005.5000,8073,021,221,257 - 59127 - 1291,450,226
EKM23-D1,11-1.5005.0008.0000,5247,78,771757 - 59127 - 1291,450,226
EKM23-F1,131.5004.5008.000-0,2724,82,344,757 - 59127 - 1291,450,226
EKM24-C1,33--2.0004.5000,978820,44457 - 59146 - 1481,770,276
EKM24-D1,36-1.5004.0008.0000,6357,59,01957 - 59146 - 1481,770,276
EKM24-F1,371.0003.0008.000-0,36332,946,257 - 59146 - 1481,770,276
EKM31-C1,10--2.5005.0000,8576,821,43769- 71108 - 1101,640,338
EKM31-E1,157502.5006.0008.0000,4136,84,748,669- 71108 - 1101,640,338
EKM31-H1,182.0006.000--0,2119,31,292,469- 71108 - 1101,640,338
EKM32-C1,95--1.5003.0001,4126,623,84769 - 71139 - 1412,320,598
EKM32-D1,99-1.0002.5005.5000,9283,210,32069 - 71139 - 1412,320,598
EKM32-H2,051.2003.0007.0008.0000,3935,01,693,669 - 71139 - 1412,320,598
EKM33-C2,66--1.0002.0001,86169,226,65469 - 71170 - 1723,00,858
EKM33-E2,74--2.0004.5001,1099,59,01969 - 71170 - 1723,00,858
EKM33-H2,838002.5005.500-0,5247,11,964,169 - 71170 - 1723,00,858
EKM41-C1,88--1.2003.0001,34121,721,36683 - 85117 - 1192,550,8110
EKM41-E1,95-1.2003.0006.0000,7164,36,01883 - 85117 - 1192,550,8110
EKM41-H1,991.0003.0006.000-0,3733,41,565,083 - 85117 - 1192,550,8110
EKM42-C3,28---1.5002,4021727,59783 - 85146 - 1483,51,510
EKM42-E3,35--1.8003.5001,261147,782783 - 85146 - 1483,51,510
EKM42-G3,46--3.5006.0000,74702,519,283 - 85146 - 1483,51,510
EKM42-J3,49-3.0006.000-0,4338,80,83,183 - 85146 - 1483,51,510
EKM43-E4,63--1.5002.5001,72156,58,63383 - 85175 - 1774,452,110
EKM43-G4,73--2.5005.0000,9990,12,811183 - 85175 - 1774,452,110
EKM43-K4,83-2.5006.000-0,5246,80,742,983 - 85175 - 1774,452,110
EKM44-E5,69--1.2002.0002,04186,18,043483 - 85204 - 2065,42,7310
EKM44-G5,81--2.0004.0001,191082,81283 - 85204 - 2065,42,7310
EKM44-J5,93--4.0006.0000,6962,30,943,883 - 85204 - 2065,42,7310
EKM51-E4,57--1.2002.5001,72155,18,9837107 - 109126 - 1284,53,410
EKM51-G4,62--2.5005.0000,9989,72,8712107 - 109126 - 1284,53,410
EKM51-K4,77-2.5005.500-0,5247,20,753,4107 - 109126 - 1284,53,410
EKM52-E8,21---1.5002,79252,48,9645107 - 109157 - 1596,16,210
EKM52-G8,3--1.5002.5001,79162,23,719107 - 109157 - 1596,16,210
EKM52-K8,47--3.0005.5000,9384,70,965,0107 - 109157 - 1596,16,210
EKM52-M8,47--4.500-0,6659,80,492,5107 - 109157 - 1596,16,210
EKM53-G11,3--1.0002.0002,39217,23,9721107 - 109188 - 1907,689,110
EKM53-K11,5--2.0004.0001,24112,51,065,7107 - 109188 - 1907,689,110
EKM53-M11,3--3.000-0,8577,10,512,7107 - 109188 - 1907,689,110
EKM53-P11,3--5.0008.0000,654,10,281,3107 - 109188 - 1907,689,110
EKM54-G14,2---1.5002,9260,94,123107 - 109219 - 2219,271210
EKM54-K14,3--1.8003.5001,5136,21,16,2107 - 109219 - 2219,271210
EKM54-L14,0--2.5004.5001,13102,80,653,5107 - 109219 - 2219,271210
EKM54-N14,0--3.500-0,8072,30,331,8107 - 109219 - 2219,271210
EKM62-G11,7---1.8002,47224,24,1332137 - 139155 - 1579,181710
EKM62-K12,0--2.0003.5001,28115,81,088,5137 - 139155 - 1579,181710
EKM62-M12,0--3.0006.0000,9182,90,574,4137 - 139155 - 1579,181710
EKM62-P12,1--4.500-0,6659,50,32,2137 - 139155 - 1579,181710
EKM63-G16,2---1.2003,7335,65,544137 - 139180 - 18211,42410
EKM63-K16,6--1.5003.0001,71155,11,149,3137 - 139180 - 18211,42410
EKM63-M16,8--2.0004.0001,24112,70,614,9137 - 139180 - 18211,42410
EKM63-N16,8--3.0005.0000,9889,30,393,1137 - 139180 - 18211,42410
EKM64-K20,6--1.2002.0002,28207,31,4112137 - 139205 - 20713,63210
EKM64-L20,8--1.5003.0001,66150,90,756,2137 - 139205 - 20713,63210
EKM64-P20,2--2.5004.5001,1100,10,362,8137 - 139205 - 20713,63210
EKM65-K24,6--1.0002.0002,54231,21,3511137 - 139230 - 23215,74010
EKM65-M24,8--1.5002.5001,85167,80,736,1137 - 139230 - 23215,74010
EKM65-N24,1--2.0003.5001,38125,20,433,4137 - 139230 - 23215,74010
EKM72-K29,5---1.5003,23293,31,3621187 - 189194 - 19620,06510
EKM72-M29,8---2.0002,33211,50,6911187 - 189194 - 19620,06510
EKM72-P29,2--1.8003.0001,58143,80,355187 - 189194 - 19620,06510
EKM73-M41,8---1.5003,12820,7612187 - 189228 - 230279210
EKM73-P41,4--1.3002.4002,13193,20,385,9187 - 189228 - 230279210
EKM74-L52,8---1.2004,14375,10,9316187 - 189262 - 26433,912010
EKM74-P52,3---1.8002,842580,477,7187 - 189262 - 26433,912010