Lightweight arm for changing usage sites

In the embedded version, the SCHUNK LWA Powerball Lightweight Arm can be quickly repositioned and can be moved with an app.

In the embedded version, the SCHUNK LWA Powerball Lightweight Arm can be quickly repositioned and can be moved with an app. (Photo: Schunk GmbH & Co. KG)

The SCHUNK LWA 4P Powerball Lightweight Arm will be available in fall of 2015 as an intuitively programmable embedded version with integrated control unit. Since all of the electronics is compactly integrated in the foot, the lightweight arm can be manually transported, or on a mobile platform from A to B very quickly. An additional control cabinet or PC is not required. Commissioning is possible with every conventional web browser. For this purpose, SCHUNK offers an app, which can be used on every customary smart phone, tablet, and PC. Virtual sliders and an integrated 3D viewer allow an axis-specific or Cartesian programming. Beside the SCHUNK Powerball Lightweight Arm, the SCHUNK SVH 5-finger hand can also be intuitively programmed with an app. In order to speed up the change between different usage sites, the complete procedure can be stored, retrieved situation-related, and quickly adjusted to the individual application scenario. Power supply of the SCHUNK LWA (24V) is provide stationary or with a battery.

Precise and a compact performance
The SCHUNK LWA 4P Powerball Lightweight Arm has weight-to-load ratio of 2:1, and is the most compact lightweight arm in the world. At a weight of 12 kg (without socket), it can dynamically handle payloads of up to 6 kg. This covers a gripping radius of more than 700 mm. Since the front end design, the wrist is very compact, the arm can easily move in confined spaces. Its excellent repeat accuracy of +/- 0.15 mm ensures process stability during demanding measuring and control tasks. Moreover, the sophisticated design prevents risky shear movements, which makes it perfect for use with people. Since the supply lines for grippers and tools are completely integrated, error-prone peripheral cables are not required. A consistent lightweight design and a torque motor of the latest generation reduce the SCHUNK Powerball Lightweight Arms demand of energy at an average of 80 W.