Hiwin TM-5 Torque Motor Series Expands Rotary Axis Options

Industry Update

IEN Europe reported that Hiwin's TM-5 torque motors combine high torque density, dynamic response and positioning accuracy in a compact design for machine tool builders. The article describes the motors as pre-assembled motor elements intended for rotary tables, swivel units and other rotary axes.

The reported design includes integrated cooling channels that support liquid cooling under higher performance requirements. IEN Europe also notes that controlled heat development can help maintain stable operating conditions and consistent processing results in demanding machining applications.

For motion-control teams, the practical detail is the product range. The article says the TM-5 line currently includes 70 variants across seven sizes, with outside diameters from 160 to 565 mm. It also reports peak torque ratings from 45 to 7,200 Nm and continuous torque ratings from 25 to 3,400 Nm.

Buyer Considerations

Machine builders comparing torque motors, geared rotary axes and servo-driven mechanical transmissions should check whether direct-drive packaging improves stiffness, backlash control and maintenance targets for the application. The update is especially relevant where the rotary axis sits inside a high-duty machine tool envelope and heat management affects accuracy.

The cooling claim should be reviewed against the actual duty cycle, coolant supply, ambient temperature and allowable process heat in the machine. Buyers should also compare the available torque range with acceleration requirements, holding torque needs, bearing selection, encoder resolution and the drive electronics already used in the machine platform.

For modernization projects, the key check is mechanical compatibility. The IEN Europe article highlights use in both new construction and modernization, but sourcing teams should still confirm mounting dimensions, cable routing, controller compatibility and service access before treating the TM-5 series as a drop-in option.

Frequently Asked Questions

What changed with the Hiwin TM-5 torque motor series?

IEN Europe reported on Hiwin's TM-5 torque motor series for machine tool rotary axes, emphasizing compact direct-drive motor elements, integrated cooling channels and a wide torque range.

Which applications are most likely to use these torque motors?

The article points to rotary tables, swivel units and other rotary axes, especially in machine tool systems where smooth motion, positioning accuracy and thermal stability matter.

What should buyers verify before selecting a TM-5 motor?

Buyers should confirm torque rating, continuous duty needs, liquid-cooling requirements, mounting dimensions, encoder and drive compatibility, and whether the direct-drive layout fits the machine's maintenance plan.