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«With their superior efficiency, performance, competitive price and maintenance-free lifecycle, the TM4 SUMO powertrains are enabling our customers to get a faster ROI. »

Burak Onur, Technology Manager at TEMSA Global.

Motor features

  • Permanent magnet radial flux motor
  • Outer rotor topology for maximum torque density
  • Direct-drive
  • High torque and power density
  • Low electro-magnetic audible noise
  • Low-cogging and ripple torque for better NVH
  • Double-ended shaft option
  • Thermal protection


Inverter features

  • Medium (450 Vdc) or high (750 Vdc) voltage inverter
  • 3-phase or 6-phase multiphase inverters
  • Reflex™ gate driver technology for high power and current densities
  • Variable switching frequency


Direct drive

TM4 SUMO MD high torque motors are designed to interface directly with standard rear differential without the need for an intermediate gearbox. A direct drive system has the following benefits:

  • Higher efficiency: a transmission can be responsible for approximately 5 to 10 % energy losses inside the powertrain due to mechanical friction
  • Better reliability: removing the gearbox means removing the most mechanically complex and maintenance intensive part of the vehicle
  • Easy to fit between the H beam of the truck or in the engine bay of the city bus: no need to modify the vehicle architecture
  • Lower maintenance: TM4 direct-drive motors require no maintenance
  • Faster ROI


Read more on these advantages here

Widely adopted solution

Having cumulated more than 30 million kilometers on road, TM4 SUMO drive systems are proven, optimized and tailored to real road conditions. These powertrains have reached a high level of maturity though many cycles of optimization based on customer feedback and preferences.




  • System protection:  IP 6K9K
  • Max coolant temperature: 65°C
  • Coolant type: 40/60 water-glycol
  • Toxic materials and flammability: ROHS, ELV, UL94-V0
  • External corrosion resistance: Salt spray, gravel, chemical products

Dual-Shaft option

Some of TM4’s SUMO MD systems are offered with a double-ended shaft option, allowing for easy integration in many hybrid-electric powertrain achitecture. Contact-us for more information.



LSM200: 220 kg
LSM140 & LSM110: 177 kg
CO200: 26 kg
CO150: 12 kg

LSM200: 478 x 437 x 478 mm
LSM140 & LSM110: 452 x 432 x 419 mm
CO200: 437 x 143 x 670 mm
CO150: 300 x 110 x 416 mm

Performance curves

Peak power (KW)200250250250250175
Continuous power (KW)150150150145150125
Operating speed (RPM)0-23000-35000-35000-30000-37000-3400
Continuous torque (NM)1230105510551055730735
Peak torque (NM)235022002645300021001550
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Applicable for Medium & heavy duty vehicles