Available on short notice! Our recommended products are ready for shipping within 2 – 11 working days.

EC-max 22 Ø22 mm, brushless, 25 Watt, with Hall sensors

Part number 283858


Price scales

Quantity Price per unit
1-4 $259.13
5-19 $200.25
20-49 $149.00
from 50 On request

Prices excluding VAT and shipping costs

Print specifications


The new maxon EC-max program picks up the ideology of the successful A-max and RE-max motors. The electronically commutated DC motors are based on the same parts platform idea, creating a wide market-oriented range in the modular system with gearheads, sensors and brakes.


Technical illustrations

Information: Drawings are not to scale.

Values at nominal voltage
Nominal voltage 24 V
No load speed 12900 rpm
No load current 121 mA
Nominal speed 10400 rpm
Nominal torque (max. continuous torque) 22.7 mNm
Nominal current (max. continuous current) 1.4 A
Stall torque 121 mNm
Stall current 6.97 A
Max. efficiency 76 %
Terminal resistance 3.44 Ω
Terminal inductance 0.182 mH
Torque constant 17.4 mNm/A
Speed constant 549 rpm/V
Speed / torque gradient 109 rpm/mNm
Mechanical time constant 5.06 ms
Rotor inertia 4.45 gcm²
Thermal data
Thermal resistance housing-ambient 10.2 K/W
Thermal resistance winding-housing 1.02 K/W
Thermal time constant winding 1.98 s
Thermal time constant motor 628 s
Ambient temperature -40...+100 °C
Max. winding temperature +155 °C
Mechanical data
Bearing type ball bearings
Max. speed 18000 rpm
Axial play 0 - 0.14 mm
Max. axial load (dynamic) 3.5 N
Max. force for press fits (static) 53 N
(static, shaft supported) 1000 N
Max. radial load 16 N, 5 mm from flange
Other specifications
Number of pole pairs 1
Number of phases 3
Number of autoclave cycles 0
Weight 120 g
  • Operating Range

    Continuous operation range
    Short term operation range


Product navigator

Do you know our Product Navigator?


The Shop lets you place a direct order quickly.


Our highlight: the Configurator. Discover all the configuration options with our special X-drives series. Try it out!


The Selection Program.

Haven't heard about it? You've got special environmental requirements?

Enter the parameters here to find the best drive for your needs.


maxon Application areas. Read our interesting stories about industries that use our products.


Any questions?

Get in touch!


Our sales team can be reached during the normal office hours.


We are able to assist you in your search for the right drive solution.

maxon precision motors, inc.

101 Waldron RoadFall River, MA 02720, United States
+1/508 677 0520 +1/508 677 0530