Product code: TM0204000 Discontinued

Basic universal electric motor for electric propulsion and mechatronics systems

  • independently excited synchronous motor
  • high torque – from 1450 to 3100 N·m
  • hollow shaft design
  • rated efficiency > 94%
  • weight 110 kg
  • air or liquid forced cooling
  • individual configuration with insert shaft, stator temperature sensors and encoder
  • possibility of control from universal general industrial frequency converters for synchronous electric motors
  • small magnetic sticking
  • efficient generator mode
  • modern composite materials in the design of the stator and rotor

Hollow shaft modular design   Composite materials in stator and rotor design   Durable body coating protects the surface from mechanical damage and weather exposure   Wide temperature range   Forced liquid cooling

Low rotor magnetic "sticking"

Application examples:




Electric motors of the iEM-II series have the following modifications:

iEM-II – standard version with forced air cooling and basic specifications. Priorities – low price and maximum import substitution while ensuring high specific characteristics

iEM-IIw – Standard version with forced liquid cooling and basic specifications. Priorities are low price and maximum import substitution while ensuring high specific characteristics.

iEM-IIL and iEM-IILw are forced-cooled modules with improved or maximum specific characteristics relative to standard iEM-II/iEM-IIw modules . Priority – high or limiting specific characteristics in its class (specific torque or specific power). Limited import substitution for the Russian Federation, since imported materials and components are used to obtain the best specific characteristics. As a rule, they are produced in limited quantities due to the relatively higher cost of products of this modification.

The basic package of iEM-IIw/iEM-IILw includes:

  • iEM-II series electric motor
  • instruction for connection and operation;
  • shipping container.


  • special shaft-insert, made according to the customer’s requirements;
  • external encoder with box and adapter for connecting to the main shaft;
  • stator winding temperature sensors (1 or 2 pcs.);
  • a set of parts for assembling an electric drive from several modules;
  • additional IP67 protection

Rated torque (S1 mode), N·M:

Maximum torque, N·M:

Efficiency at rated rpm, %:

Number of phases:

Insulation class:


Operating temperature range, °C:

Protection class:


Moment of inertia of the rotor, KG·М²:

Supply voltage, V:

Rated phase current (for Uf = 220V), A:


Specific torque @ rated power, N·M/KG:

Unit weight, kg:

Rated torque, N·m 1450-2200 *
Maximum torque, N·m 2175-3100 *
Specific torque, N·m/kg 13-20 *
Basic weight, kg 120 / 140
Basic dimensions, mm 610×560×140/160
Basic temperature range, oС -50…+45
Modular scaling “yes”
Rated efficiency, % >94
Rotor moment of inertia, kg·m2 0.65
Cooling type forced
Number of phases, pcs. 3/6 *
Stator winding connection “star”
Protection class IP65/67 *
Ground terminal “yes”
Insulation class F/H *
Built-in temperature sensors, pcs. 0-2 *
Shaft connection keyed/splined *

(*) – the first value of this characteristic corresponds to the standard version, the rest – to the special version “L” or the individual customer’s request.

Dimensional drawing iEM-II module
3D model iEM-II module