ROTAX® Rotary Motor Axis

The ROTAX^® Rxhq 50 and 110 rotary motor axes with direct drives impress with their high torque values of 1/4.0 Nm and large hollow shaft diameters of 12/50 mm while maintaining compact external dimensions. The single-cable solution simplifies installation, and thanks to the absolute measuring system, reference runs for finding the zero point are no longer necessary. In combination with the XENAX^® servo controller, multiturn absolute positioning can be achieved. The special motor Rxvp features a compressed air/vacuum feedthrough and fits perfectly onto the front flange of the ELAX^® linear motor slide – making it ideal for pick-and-place applications.

ROTAX® Rxvp 28 Rotary Motor Axis

Rxvp = vacuum pressure
The ultra-compact ROTAX^® rotary motor axis with a vacuum gripper picks up parts within a typical weight range of 1 mg to 500 g. Many commercially available vacuum grippers can be attached to the standardized M5 threaded hole. The ROTAX^® rotary motor axes can also be directly mounted to the ELAX^® linear motor slides or the LINAX^® linear motor axes.

The highly precise rotary motor axis rotates endlessly 360° with a resolution of 64,000 increments per revolution. They can be arranged next to each other with a spacing of only 30 mm. When placed opposite each other, the minimum distance between ROTAX^® shafts is also only 30 mm. This saves space, and the system becomes more compact.

ROTAX® Rxhq 50 Rotary Motor Axis

Rxhq = high torque
The new, self-developed miniature hollow shaft servo motor ROTAX^® Rxhq (high torque) impresses with its extremely compact design of 50 x 50 x 55mm / 1.96 x 1.96 x 2.16″. Direct drive motor, precise bearings and the single turn absolute encoder are completely integrated.

The direct drive servo motor is based on the magnetic flux technology of wind turbine generators. This generates a high torque at low speed. In figures this means a factor 2-3 higher torque with the same construction volume compared to a conventional direct drive of competitors.

The large hollow shaft with a diameter of 12mm / 0.47″ offers generous space for cables, vacuum or compressed air lines, light and laser beams, glass fibers and other media. Another advantage in this context is the short overall length of only 55mm incl. built-in encoder. The connection cable consists of only one cable and offers advantages in the space required for cable installation. Thanks to the precise, precompressed double bearing on the front flange, the drive achieves high rigidity with high axial torque capacity.

ROTAX® RXHQ 110-50T1.5 Compact Hollow Shaft Motor          

Rxhq = high torque

The direct drive developed in-house impresses with its flat design, compact external dimensions and a hollow shaft with a diameter of 50mm. Cables, vacuum or compressed air lines, light and laser beams, glass fibers or camera lenses can thus be easily guided through the hollow shaft.

The absolute measuring system allows an immediate start without previous referencing. With a resolution of 120'000 inc. per revolution, repeatability of ± 11arcsec can be achieved. The single-cable connection can be supplied in right-hand or left-hand output configuration.

Together with the patented “Force Calibration” function, undesired cogging, weight and friction forces of the ROTAX^® Rxhq direct drives can be easily compensated. This makes it possible to specify, limit and monitor forces in processes. Together with the Forceteq^® basic technology included in the XENAX^® servo controller, complete force/distance diagrams can be recorded - an additional torque sensor is not necessary.

Need more information about our Rotax, or want to discuss your needs with our engineers? Meet us at Automate Show on booth # 16!