RTMB+ rotary axes

The RTMB+ is a family of high precision indexing tables proposed with 2 different diameters, active lengths and windings per size. Integrating ETEL TMB+ direct drive torque motors, the RTMB+ benefits from the best motor constant on the market (Nm/√W) allowing very high acceleration during indexation with low power dissipation. The RTMB+ is the ideal standard solution for all applications where high repeatability and short indexing times are required. This highly reliable direct drive solution allows high duty cycles, high dynamics, outstanding accuracy, low maintenance and easy integration. A unique encoder-bearing solution provides the RTMB+ with the best torque to volume ratio on the market. An optimized hollow shaft size is available to accommodate customer cables and tubing. Alone or coupled with ETEL’s force controlled short stroke actuators and AccurET controllers, the RTMB+ is the perfect solution for applications in back-end semiconductor manufacturing, electronics, automation, or printing, such as MEMS testers, die bonders, pick and place testers, turret testing handlers, and more!


  • Rotary tables for high dynamics indexing applications
  • 2 different heights
  • 2 different diameters
  • 2 different windings per size
  • Available with or without closed cooling jacket
  • Nickel coating on rotor and stator
  • High torque to height ratio
  • High dynamics capabilities
  • Large hollow shaft for maximal flexibility
  • TMB+ torque motors technology providing high level of torque
  • Semi S22 compliant.

Main specifications

  • Bidirectional repeatability: down to ±3 arcsec
  • Position accuracy: down to ±6 arcsec (w/ mapping)
  • Peak torque: up to 869 Nm
  • Continuous torque: up to 439 Nm 
  • Payload: up to 500 kg
  • Speed: up to 493 rpm
  • 600 VDC compliant

Ask for the corresponding Integration Manual for more information.

DescriptionData sheetInterface drawing3D model
RTMB+210-070 /  / 
RTMB+210-100 / 
RTMB+291-070 /  / 
RTMB+291-100 /