Centring systems for prefabricated parts

For supports for prefabricated parts and other vertically mounted elements.

The centring cone serves to centre the prefabricated part on a previously determined point. Not designed for any structural function.

Made from steel plate St 1203. There is no risk of the support splitting because the tip of the cone yields when a load of 3.3 Mp or more is applied to the impression.

Type B with 4 claws for the sleeve (available in 2 base plate sizes)

These cones are not recovered and should always be re-ordered in plenty of time.

Type B small should only be used for smaller supports.

Type B large is the further development. It has a wider border, which gives a larger metal surface for the support foot. Furthermore, the considerably larger claws prevent any displacement in the levelling concrete.

After applying the levelling course to +/- 0, the cones with the claws are pressed into the still fresh concrete. Due to the high loads, we recommend a mortar bed made of high-strength resin-based mortar. This work must be carried out carefully and in alignment with the building line. While this takes time, it is more than compensated for by the saving in crane hours.
The impression at the tip of the cone serves to accommodate the plumb bob. A crevice at the edge of the sleeve facilitates the placement of the support into the cone.

The centring cone placement tool considerably facilitates adjustment of the cone in alignment and height.

For formwork type A (re-usable, available in 3 sizes)

The cone dimensions for A and B are always the same, only the border widths are different.

Type A small: This type is normally countersunk in the formwork shell so that it is flush. This ensures it fits precisely without any clearance. However, if clearance is required, the cone is placed on top of the formwork shell. This provides a clearance of approx. 6-8 mm, produced by the material thickness and the angular surface. The installation height can therefore be used to determine any necessary clearance.

Type A large: In order to spare you the laborious task of inserting the cone, type A small, in the formwork shell, we have expanded the border from 75/75 to 200/200. This allows the bevel for the support foot to taper off onto the widened border.

Type A oblong: This type forms an oblong recess in the concrete and has a similar function as a slot in steel parts. On the one hand it acts as tolerance compensation for disk-shaped components, and on the other it permits lengthwise movement of elements of approx ± 20 mm. For use in retaining walls and channels, and also for wall elements in housebuilding