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Hydraulic Stressing Jack|multi Strand

Description of Hydraulic Stressing Jack|multi strand Hydraulic Stressing Jack are double-acting jacks that utilize twin hydraulic cylinders to tension prestressed tendons and jacking anchors. Through-type jacks are suitable for tensioning belts The working principle is as follows: When...

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Description of Hydraulic Stressing Jack|multi strand

Hydraulic Stressing Jack are double-acting jacks that utilize twin hydraulic cylinders to tension prestressed tendons and jacking anchors. Through-type jacks are suitable for tensioning belts

The working principle is as follows: When tensioning the prestressed tendons, pull the cylinder oil nozzle into the oil, top pressure cylinder

Oil return, top pressure cylinder, connecting sleeve and support sleeve are integrated into one body and the anchor ring is moved rightward. Tension cylinder, end cap nut and plug head and threading sleeve are connected to drive the tool anchor to pull the prestressed tendons leftward. When the top pressure is anchored, under the condition of maintaining stable tension, the top pressure cylinder oil nozzle enters the oil, and the top pressure piston, the protective sleeve and the top pressure head are joined together to move the clamp piece into the anchor ring; Pull cylinder oil return, top pressure cylinder oil inlet, pull cylinder hydraulic return. Finally, the pulling cylinder and the top pressure cylinder oil nozzle simultaneously return oil, and the top pressure piston is returned under the action of the spring force.

Long-span structures, long wire bundles, etc., with large extensions, are suitable for the use of heart-type jacks.

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