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Multi Strand Jack Lifting System

Descriptions of strand jack lifting system: 1. to enhance the equipment small size, light weight, load capacity, easy installation and flexible, especially suitable for small space or indoor large tonnage components to enhance; • 2strand jack lifting system with reverse movement self-locking, so that the lifting process is very safe, and the components in the lifting process can be anywhere in the long-term reliable lock; 3 equipment, high degree of automation, easy operation and flexible, with automatic operation, semi-automatic operation, single point adjustment, manual operation and other modes of operation.


  • Product Details

Description of strand jack lifting system:

strand jack lifting system are specially configured hydraulic jacks, which can give continuous pulling or lifting movement. A combination of a number of strand jacks can lift very heavy loads of thousands of tons, whereas the jack itself weighs very less and occupies only a very small footprint.

strand jack lifting system are small devices that can do a large work using hydraulic pressure. Strand jacks use a combination of gripping and lifting to produce a continuous linear movement that can lift very heavy loads to great heights. These are especially very useful in lifting heavy loads in restricted areas. They are also simple to install and operate.

Hydraulic Strand Jack SystemStrand Jacking Is Pre-fabricated Building Sections Are Carefully Lifted And Precisely Placed.jpg

To start with the upper anchor grips the strands, and the hydraulic cylinder forces the anchor upwards together with the strand and the load connected to it. Once it reaches the stroke length, the lower grip, grips the strands preventing it from going down. The upper grip is released and the hydraulic cylinder strokes down to the bottom position. The upper grip then grips the strands and the lower grip is released. The cycle repeats itself creating a continuous linear movement, lifting the load .

Parameters of strand jack lifting system:

Multi strand jack lifting system1

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The strand jack lifting technique originates from equipment used for concrete pre and post tensioning. A strand jack utilises a number of individual high tensile stressing strands. In a strand jack ,a bundle of steel strands is guided through a hollow hydraulic cylinder. Mounted above and below the cylinder is an anchor system with a number of collet anchors. For each strand there is a single collet assembly above and below the hydraulic ram. By stroking the ram in and out and engaging or disengaging the collets in the appropriate sequence, the strand jacks can either lift or lower a load. As strands can only act in tension, a strand jack can not push a load. In the preceding paragraphs strand jacks have been described primarily as a lifting device in the vertical direction. However, a strand jack can be used in any direction as long as tension is maintained in the strands.

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Strand jack lifting system

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