HANNOVER MESSE 2018,
23 - 27 April
The new SGH25 wire-actuated encoder from SIKO is characterized by a measurement range up to 2.5 m and an extremely long service life. The variety of interfaces meets the very highest requirements, even in applications that are critical for safety. With this performance profile, the wire-based position sensor is suitable for applications in mobile machines such as dumper trucks, excavators and agricultural machinery, where it measures the position of hydraulic and telescopic cylinders and communicates it to the machine control system via integrated communication protocols.Teach-in measurement lengths and IP69KWith the integrated teach-in function, the measurement length of the sensor can be set individually. The SGH25 can cover a multitude of measurement lengths (0-2.5m). Both the number of variants and the stock requirements for any spare parts therefore fall. Another feature of the position sensor is a KV1H plug connection. This modular plug connection system has the high protection rating of IP69K.The SGH25 was developed specially for extreme conditions in mobile hydraulics that are mainly used in agricultural machinery or construction machines. The resilience required for this has been designed and tested both electronically and mechanically for the service life of a cylinder.Safety firstThe SGH25 is available with analog interfaces and with CANopen or SAE J1939 protocols for transmitting data between the SGH sensor and the machine control system. Redundant versions with CAT3, performance level D -PLd meet the highest requirements for safety-critical applications in accordance with EN13849. There is a choice with safety variants between a redundant or analog interface, redundant CANopen, redundant SAE J1939 or CANopen-safety.Piston boring is a thing of the pastFor cylinder manufacturers, the use of SGH position sensors offers large potential for savings, as the cable-based design concept makes hollow boring of the piston superfluous.
Direct stroke measurement in the hydraulic cylinder
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