Schunk develops compact mechatronic module for flexible rotations
The mechatronic SCHUNK ERS rotary module allows multiple applications in confined spaces. On request, it is available in a dust- and splash-free version (IP54), and with a pneumatic-electric rotary feed-through.
When competing for the highest speed, flexibility, reliability, and efficiency in production automation, mechatronic modules are rapidly gaining in importance. The SCHUNK ERS rotary modules were developed for rotary movements in the medium load range. The currently most compact mechatronic rotary module on the market is available in unit size 170 with a height of 66 mm, achieving a nominal moment of 5 Nm, and a maximum moment of up to 17 Nm. It is used for implementing flexible and compact system concepts.
The core piece is a torque motor with a hollow shaft. It is light-weight and compact, and is absolutely wear-free, making it very reliable. It can endlessly turn up to 250 rpm to any intermediate position at a repeat accuracy of 0.01°. In contrast to rotary modules with a conventional servo motor, the ERS has no additional interfering contours and no elasticity. This long-lasting module from SCHUNK, the competence leader for clamping technology and gripping systems convinces with high acceleration, swiveling speed, and precision. On request, an integrated pneumatic holding brake ensures that individual positions can be reliably fixed. The center hole allows feed-through of cables, workpieces or the use of a camera.
In order to feed compressed air or signals without hoses or cables through the module, the compact module is also available in a version with pneumatic-electric feed-through, by using a slip ring or air channel of up to eight electric signals (24 V DC/2 A), and a fluid with a pressure of up to 8 bar. For feed-through of higher currents and voltages, slip rings can be also combined. The SCHUNK ERS is available in three sizes with outside diameters of 135, 170, and 210 mm. The version with feed-through is available with outside diameters of 170 and 210 mm. In order to achieve the highest possible flexibility for the control and regulation strategy, it can be actuated with the SCHUNK Motion Controller ECM (48 V version) or a common standard. Every unit size is also available as a dust and splash-proof IP 54 version. Supply and actuation of all the ERS rotary modules is carried out by a standard plug (M9/M17).
