P.O. Box : 45585, Abu Dhabi, UAE.  Tel : +971-02-4433787,  Fax  : +971-02-4453552. Email : info@patkruger.com

  NWD

                                

 HSL

LSS

SLI – Applications

During the operation of road-rail-excavators on rails or mobile construction machines under a limited clearance profile, certain limits have to be observed in addition to the monitoring of the actual loading condition.

- An excavator must not touch the normal overhead power lines above the track or endanger the operations on the parallel track.
- The boom must not collide e.g. with the bridge construction.

For such applications KRÜGER offers the HSL System which allows the maximum permissible height of the boom and the maximum permissible slewing angle range of the superstructure to be preset. After the input of these limit values, they are barred with a key operated switch to prevent accidental changes via the keyboard. These limit values are then shown on the display together with the current boom height and current slewing angle. As this limits are approached, the operator receives a visual warning. When the limits are reached, a visual and audible alarm comes on. In addition, the speed of the particular movement can be reduced as the limits are approached.

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LSS is a certified safety system for aerial platforms (AP's) and many lifts. It detects dangerous working conditions already in advance and cuts out machine functions safely as soon as maximum permissible loads and load moments are reached. The high safety standard is achieved due to its fully redundant structure. LSS consists of two separate microprocessor system which work in parallel and which exchange and compare relevant data permanently.

LSS has a 3-stage cut-out functionality:

Relay output "Pre-warning, Relay output to give a signal to the AP's PLC,

Should the AP not stop and further move into the dangerous area, a cut-out via redundant relay contacts will shut cut out the complete machine independently from the PLC.

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For the positioning of a Pile Driver or a Drilling Machine under conditions of a rough terrain area, very often a high resolution measuring system is required.

KRÜGER offers for this situation an Inclinometer system. The system is used to measure; indicate; and process, the inclination angle in one or two axis (X, Y). The display is designed with a background illuminated alpha-numeric display. The first line gives the angle values of both axis. Further information in the second line shows the additional possibility of a distance value e.g. depth, length or width and the hydraulic pressure of the drilling actuation. These actual values are 100% to tare. In the case of exceeding the preset limits, an integrated warning light and a buzzer will be activated.