Manufacturing modern reinforced concrete structures, such as concrete hollow-core slabs produced by the extrusion method, requires strict adherence to technological standards. Reinforcing materials—steel wire or strands—significantly increase concrete strength, extend product life, and make them resistant to harsh external conditions. To provide the required rigidity and minimize the risk of cracking, specialized hydraulic equipment must be used. By introducing it into the production cycle, a proper prestressing jack application becomes the decisive factor that directly affects the reliability and durability of the manufactured goods.

The Essence of the Technology: Operating Principles of Hydraulic Equipment and Its Business Importance

The process of high-quality reinforcement requires tremendous precision and control. The essence of the technology is that a steel strand is securely gripped by the device's internal clamps. Then, the metal is stretched to the specified parameters, followed by fixation using anchoring elements. To ensure an uninterrupted process, tensioning jacks are connected to NG50 or NG100 hydraulic stations or compact NG15 mini-pumps, which are equipped with manual or electrical controls system. During the anchoring phase, the prestressing jack application ensures zero tension loss, which is critical for strict compliance with project documentation. The jaks can work with steel wire or strands from 2 to 16 mm thick, fully covering the needs of large-scale manufacturing.

Practical Application: Examples of Operation on Production Sites and Construction Areas

PAUL brand equipment features wide variability, allowing it to solve engineering tasks of any complexity. Durable single-hose mini-devices are ideal for working with any volumes: from the smallest precast elements to massive beams. Twin-hose models, besides being lightweight and elegant, are equipped with a hydraulic wedge seating. For more specific tasks, TENSA SM mechanisms with a force of 240 kN are used, designed for working with mono-strand anchors and separate tensioning of multi-strand tendons on construction sites.

In cases where strands are located closely together, special stressing heads and mounting plates are utilized. Factories often implement four-hose systems, where the operator activates gripping, stressing, locking, and retracting with a single button press. Depending on the plant's needs, a specific prestressing jack application allows enterprises to flexibly adapt to the production of various reinforced concrete products. An essential production stage is the tensioning of reinforcement, for which single-wire tools and multi-stressing equipment are actively used.

Competitive Advantages: Key Benefits of Investing in Professional Products

Choosing professional hydraulic tools directly determines workshop profitability. Producing prestressed concrete products demands flawless reliability from every mechanism involved. Utilizing branded solutions from TDM guarantees the enterprise the following advantages:

  • Exact compliance of the result with set engineering parameters due to a strictly controlled workflow.
  • A significant increase in overall line productivity through rapid fixation and high-speed execution of operating cycles.
  • Uniform load distribution across the entire surface of the wire rods, completely eliminating the deformation of finished slabs.
  • A wide model range for any task: units with a capacity of 60 kN, 140 kN, 200 kN or 300 kN with a cylinder stroke of 200 or 600 mm are available.

Reliable Partnership with TDM Engineering Oy: A Direct Path to Enterprise Modernization

TDM Engineering Oy supplies advanced European equipment designed to optimize processes at precast concrete plants. Besides standard lines, customers have access to detensioning cylinders and custom device manufacturing services.

By integrating a reliable prestressing jack application from a trusted supplier, you guarantee the stability of manufactured slabs and the absence of production defects. The highest quality of components, an official warranty, a reasonable price, and professional service make cooperation highly effective.

Contact TDM engineers right now to get expert advice and order equipment ideally suited to the specifics of your plant.