In Touch

Rotary haptic solutions

Our InTouch rotary haptic solutions contains a chamber filled with MRF, rollers, and a coil. The MRF changes its state from a liquid to a semisolid when a magnetic field is applied. While the MRF is liquid, the rollers can rotate uninhibited, allowing the InTouch to spin freely. By applying electricity to the coil, we create a magnetic field, which changes the MRFs viscosity and stops rollers’ rotation.

One device - infinite possibilities

By controlling the electricity’s duration and strength on the coil via software, we create our haptic force feedback patterns. The rotation of the device is detected via a magnetic sensor with a finer resolution than 0.1 degrees.

Do you want to learn more about the different haptic feedback patterns? Take a look at our startup XeelTech.

XeelTech brings our InTouch technology to serial production and is your partner for standardized programmable haptic feedback rotary encoders.

Steer by wire

The InTouch D99 brake is our solution for applications such as steer by wire, gaming and simulation, prosthetics, or exoskeletons.

Control Lever

Thanks to our MR technology, the adaptive INVENTUS control lever brings adaptive braking and thus haptic feedback to classic swivel motion devices. This provides an individualized adjustment of the control to various applications, e.g. ships and boats. In addition, advanced functions such as complete lockout of the lever or customized operating profiles provide additional safety and comfort.


The INVENTUS joystick combines two of our MR brakes to provide adaptive control of both the X and Y axes with just a single device through fully programmable haptic feedback. Thereby, the perceptible resistances along both axes can be finely adjusted. Our joystick technology thus makes the control of everything from gaming and simulation to industrial machines and vehicles even more intuitive and safe.

Piano Keys

Each piano feels different and this is caused by the mechanics used inside the key. With our InTouch haptic solution we can create different haptic tactile feedback on the piano keys and therefore change the feel and sensitivity of the key on the fly. This means we can make you feel playing on a grand piano for the one moment and let you switch to a keyboard feeling for the next song. We can even create the feeling of different grand pianos just via software.

Rotary Encoders

Our adaptive INVENTUS rotary actuator provides haptic feedback with a rotating outer ring. Thereby, the non-rotating inner part of the encoder leaves space for either a touchpad, a touch display, or gesture control and thus combines the best features of different operating technologies depending on the application area and customer needs. A supplementary illuminated ring and an integrated push function also simplify operation.


The INVENTUS thumbwheel is an extraordinary variant of our smart rotary encoders. Whether it’s a smartphone, camera, gaming hardware, or VR device – the small form factor provides tangible feedback and simplified operation in numerous application areas.

In Touch Disc

With a hight of only 6 mm, the INVENTUS In Touch Disc is our shortest rotary haptic device. 

Whether it’s a smartphone, camera, gaming hardware, or VR device – the small form factor provides tangible feedback and simplified operation in numerous application areas.

MR Throttle​

The INVENTUS MR throttle brings full control and adaptive operation to any handlebar-controlled vehicle through fully programmable haptic feedback. Our MR technology brakes the rotational movement of the hand for precise control. And while our current technology relies on a parallelly mounted MR brake connected to a timing belt, our team is already working on a fully integrated solution directly in the handlebar.