Pre-stressed girders are an interesting alternative for creating slab constructions, they are easy to use and do not require complicated site logistics.

The advantages are as follows:

• Large spans without temporary support

• Easy construction (no crane needed)

• Delivery from stock

• Dimensions according to structural details.

WECKENMANN supplies complete manufacturing plants, either temporary production lines, or pallet circulation systems.

The most important system components for temporary production lines are:-

• Pre-stressed elements with formwork and heating systems

• Pre-stressing technology (tension yokes, hydraulics, tension press) 

• Tension wire preparation (reel, cross-cut)

• Wire drum for the rapid production of up to 90 tensioning wires (any length)

• Concrete distributor with leveller and compacting elements

• The production winder allows for complete concreting operations along the line.

• Combo-machine that fulfils the following tasks
  - Decomissioning of the finished beam
  - Separation of the tension cables
  - The cleaning and oiling of the track

• The beam usage machine admits a row of carriers, rotates it 180° in the usage position, transports it to the storage location and stacks it on transport packs

• Transport vehicle, for the transfer of the transfer of the transport packs and the machines

The finishing of the carriers in a circulation system varies in individual inhouse manufacturing stations.

• The tension cables are pre-manufactured on a length / situation test table, before being directly inserted into the palette with a cable insertion crane.

• The palette is tension-stiff i.e. it recognises complete pre-tension fare.

• A cable cutting machine separates the tension cords and marks the carriers: either directly, using an ink jet; or using printed labels.