The new SGH50 from SIKO uses a clever cable mechanism for absolute measurement of hydraulic or telescopic cylinders. The sensor represents the latest generation of the SGH wire-actuated encoder family from SIKO and now makes it possible to measure distances up to 5 m. Target applications are agricultural machinery, construction machines, municipal vehicles, forestry machines, piston accumulators and other industrial applications.
A significant extension of measurement length and above-average durability, wide compatibility with various interface protocols, even for applications in which maximum safety is paramount – these are the most important performance features of the SGH50, which is used in particular for telescopic and hydraulic cylinder applications in mobile machines.
With measurement lengths between zero and five meters, the SGH50 has the largest measurement range of the SGH series to date: another sensor, the SGH25, covers measurement lengths in the mid range between zero and 2.5 m, and the other, the SGH10, covers lengths between zero and one meter. The SGH50 can be integrated into hydraulic and telescopic cylinders and has an extremely durable design. A special plastic developed specifically for the purpose, which is characterized by an extension of fluid temperature resistance from 85°C to 105°C, makes this possible.
The SGH50 meets the specifications of the most extreme vibration standards, which are also used for testing helicopter turbines, and easily copes with shocks 100 times the force of gravity. Unlike rod-based sensors, its flexible cable completely absorbs vibrations. The hydraulic medium provides additional damping of any vibration.
The SGH50 is designed in particular for the highest requirements of mobile hydraulics. The wire-actuated sensor must meet the prerequisite of an extremely long service life in this context. It has been tested and designed for the service life of a cylinder both electrically and mechanically. In order to cope with the harsh conditions of the mobile world, all of the sensors integrated into the cylinder are completely protected from external factors. SGH sensors have a protection rating of IP69K and use KV1H plug connections.
Analog interfaces, CANopen or SAE J1939 provide the communication between the SGH50 sensor and machine control system. Applications in which maximum functional safety is essential can be supplied with redundant SGH50 versions (CAT3, PLd) in accordance with EN13849. For safety variants, SIKO also offers redundant or analog interfaces, redundant CANopen, redundant SAE J1939 or CANopen-safety.
For more information, visit www.siko-global.com.
Filed Under: Linear Motion Tips