AC torque motor QMT
synchronous3-phase680V

AC torque motor - QMT - Tecnotion - synchronous / 3-phase / 680V
AC torque motor - QMT - Tecnotion - synchronous / 3-phase / 680V
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Characteristics

Type
synchronous, AC, 3-phase
Voltage
680V
Configuration
permanent magnet, frameless
Number of poles
multipole
Cooling mechanism
water-cooled
Applications
for machine tools, for robotics, for the semiconductor industry
Other characteristics
direct-drive, motion control, high-torque, high-precision
Power

Max.: 11,019 W
(14.98 hp)

Min.: 0 W
(0 hp)

Intensity

Max.: 45.8 A

Min.: 0 A

Torque

Max.: 4,307 Nm
(3,176.680177 ft.lb)

Min.: 0 Nm
(0 ft.lb)

Rotational speed

Max.: 712 rpm
(4,473.6279 rad.min-1)

Min.: 0 rpm
(0 rad.min-1)

Diameter

Max.: 485 mm
(19.09 in)

Min.: 230 mm
(9.06 in)

Operating temperature

Max.: 130 °C
(266 °F)

Min.: 20 °C
(68 °F)

Description

QMT Series

The QMT torque motor series is specifically designed for the machine tooling market and combines excellent mechanical compatibility with a synergy of power and precision. This improves the motion capabilities and thus enhances the overall performance of your existing machine design.

The QMT series consists of two subseries: the LA and HA series. The superior HA series has a higher rotor and delivers even higher performance thanks to its high power density.

Series and subseries
The QMT series comprises two subseries: the LA series and the higher-rotor HA series. The HA subseries features a larger rotor, delivering higher performance and greater power density compared with the LA variants.

Applications
  • Cutting
  • Grinding
  • Metrology
  • Rotary indexing tables

Key features and benefits
  • Outstanding stall torque in a compact design suitable for heavy-duty tasks in limited spaces
  • Direct integration into the machine structure (no additional gearbox or drive train required)
  • Large open inner diameter enabling wire and cable feedthrough
  • No contact between rotor and stator → no mechanical wear
  • Brushless torque motor design removes the need for gearboxes, belts and speed reducers
  • Aluminium housing with integrated water-cooling channels as standard to increase maximum performance
  • Housing includes bolt holes to simplify mechanical installation

Available series / models (as presented on the site)
  • QMT-HA 485 series
  • QMT-HA 385 series
  • QMT-LA 485 series
  • QMT-LA 385 series
  • QMT-LA 310 series
  • QMT-LA 230 series

Technical specifications
  • Product family: QMT torque motors
  • Subseries: LA series, HA series (HA = higher rotor, higher power density)
  • Mechanical integration: direct integration into machine structure; aluminium housing with bolt holes
  • Cooling: integrated water-cooling channels (standard)
  • Design: brushless torque motor (no rotor-stator contact)
  • Inner diameter: large open inner diameter for cable/wire feedthrough
  • Target applications: machine tooling (cutting, grinding, metrology, rotary indexing)

Exhibitions

Meet this supplier at the following exhibition(s):

Precision Fair
Precision Fair

18-19 Nov 2026 's-Hertogenbosch (Netherlands) Hall 3 - Stand 434

  • More information
    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.