YORC Actuators

YORC Linear Actuator

Our linear actuator that makes the most of YORC motors' features.

As compared with belt drives, leadscrew based actuators have superior rigidity, superior accuracy, and run quieter.

Unfortunately, a long leadscrew will flex and warp when driven at high speed. This speed, known as the "critical speed" corresponds to the resonance frequency of the screw, and relates to its length and diameter. But if the leadscrew remains stationary and the nut spins around it - this is known as a non-captive nut design - then there is no longer a speed limitation.

Thanks to their large central through-hole, YORC motors make non-captive nut designs easy. All we need to do is snap in the leadscrew nut that fits your application. Our non-captive nut linear actuators also make better use of space; with the motor on the linear stage, there is no need to place motion hardware outside of the active area.

Leadscrew nuts often exhibit backlash, which limits their accuracy. We've engineered a zero-backlash design to ensure you don't have to worry about that limitation either.

Depending on the load you're trying to move, you might prefer more speed and less torque, or more torque and less speed. This can be accomplished by changing the lead of the leadscrew. For example, a leadscrew with a 2mm pitch and a single start will move the load 2mm each time the nut spins through a complete rotation. With two starts (imagine a double helix), the load will move 4mm each time the nut spins.

We support up to eight starts (octo helix?), enabling 16mm of movement each time the nut spins through a complete rotation. Pick the lead you need, and we'll build our actuator to your specifications. You can even swap out leadscrews and nuts on the fly, and figure out what works best for you. Since the leadscrew nut is a swappable insert, this is all easy to do.

Normally, a leadscrew actuator is limited in length by the critical speed. Since our design isn't, you can specify any length from 200 mm all the way up to 2000 mm (78 inches).

To ensure your load is supported with remarkable rigidity and strength, we use a dual rail design with four carriage blocks. Our guide rails are available in both the MGN9 and MGN12 standards.

Since the YORC motor supports torque sensing, you can configure a maximum allowable torque. This allows the design of systems that can safely be used around people, and also allows designs that use the rail stops themselves as limit switches.

Naturally, we also support conventional limit switches and home switches.

And of course, like all YORC products, you can quickly and easily write your control software using our Python API.

The linear actuator is available for purchase right now. Write us to discuss your unique specifications, and we'll build one just for you! Our prices are remarkably competitive.

Learn how we used our linear actuators to build cartesian robots.

YORC Rotary Joint

We have also integrated the YORC motor with a custom low backlash and high load capacity rotary joint. This joint is lightweight, low cost, and perfect for robotics, particularly collaborative robots, where low weight allows safe operation at higher speeds. We can support a variety of gear ratios, from as low as 8:1 to as high as 625:1