DI 040050 : Nanotorque V2.0 Rotary chair

DI 040050 : Nanotorque V2.0 Rotary chair


Programmed, with reclining backrest to the horizontal


The rotary chair is used for vestibular examination in the clinic and the practice.

State-of-the-art microprocessor technology enables easy operation and ensures high accuracy of freely programmable parameters.

All movements are freely programmable. The rotating chair is fully compatible with the software Disoft II by Difra. The software, in addition to the controller, also records and analyzes the nystagmus data. The movement of the chair is also recorded.

With a comfortable and fully recline seat, the NanoTorque can be used to perform also other test like caloric or positional and Dix-Hallpike tests. The seat can be recline completely.

The chair is equipped with slip rings for connection to Instrumentation Difra ENG and VNG devices.

The following examination procedures are freely programmable:

  • VOR test

  • Visual VOR

  • Suppression VOR

  • Velocity Step Test

Automatic positioning of the chair before testing (individually programmable for each test run).

Other possible versions:

  • Minitorque: standard version (with direct drive motor). 

  • Megatorque: with electrically adjustable oblique axis rotation. Adjustment range of the tilt angle from 0 ° to 15 °.

  • Gigatorque: with electrically adjustable excentric position for unilateral otolith irritation

Technical specifications

  • Mains voltage: 240 Volt 50/60 Hz

  • Power consumption: approx. 500 watts

  • Drive: motor with 3-fold V-belt

  • Max. speed: 200°/sec. (if the chair is anchored in the ground) - 100°/ sec (without anchoring)

  • Max. acceleration: 100°/ sec²

  • Max. load (patient): 150 Kg

  • Pendulum frequency: 0.01 Hz to 0.64 Hz 

  • Pendulum amplitude: 0 to 1080°

  • Damped oscillation: 0 to 100%

  • Slip rings: 21 (all are used)

  • Footprint: approx. 1300 x 1300 mm

  • Safety zone: 2000 x 2000 mm

  • Weight: approx. 125 Kg

  • Digital output: for recording the chair movement

  • Connectable devices: NysStar I (VNG 2 channel), NysStar II (VNG 4 channel) and HeadStar (vHit / VNG)

Nanotorque meets EN 60601-1 Standard and Directive 93/42/EEC.