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Place: Turkey
Area: Transportation
Technology: High tonnage lifting cylinders and pumps

Lifting and maintenance of a railway bridge

150 tons high tonnage lifting cylinders and synchronized pump

In the railway bridge maintenance project, an hydraulic lifting of the structure had to be made to rebuild the shoulders without interfering with the trains’ transit.

For the lifting have been used 15 hydraulic lifting cylinders with capacity 150 tons each one and a stroke of 50 mm, model FPT CSE150/50GS.

The total load supported by cylinders was about 1700 tones and consists of a static part and a dynamic part generated by the rail transit. The cylinders used are equipped with a safety ring, so when the cylinder is pressurized and reached the desired height it is possible to mechanically screw the lock ring on the piston so hydraulic hoses can be disconnected and the load can be mechanically support even longer periods and in total safety.

The hydraulic pump used to manage the jacks has an electric motor and a flow divider to handle synchronous lifting of the various points.