BT-Baushop.de - Schmetterlingsschalung

Butterfly Formwork®

Butterfly Formwork* is a special type of bulkhead for battery moulds. They consist of two formwork panels that are connected to each other by a solid swivel joint.

For the preparation of the precast concrete parts, especially for formwork construction, the measuring and insertion of built-in parts, as well as the insertion and fixing of the reinforcement, these butterfly formwork panels are taken out of the battery mould and folded open. Then they can be transported horizontally like circulating pallets to different work stations. After all preparation activities have been completed, the Butterfly Formwork® is folded up again and returned to the battery mould.

Horizontal preparation and vertical production. The butterfly folding formwork combines the specific advantages of horizontal preparation with the upright concreting of prefabricated reinforced concrete elements.

All preparatory work is effectively carried out horizontally: from measuring with laser projection equipment (or marking with plotter), to formwork construction, positioning of the fixtures and placing of the reinforcement. This principle is known and proven for circulation systems, stationary tracks and tilting tables.

Using the advantages of battery moulds: B.T. innovation GmbH developed the patented Butterfly Mold® and turns the battery mould into a Butterfly Formwork®.

The set-up time is significantly reduced by parallel work processes on the horizontal shuttering tables outside the battery.

Once preparation is complete, the formwork faces are lifted. When lifted, the formwork folds up in the middle - like the flight of a butterfly, which gives the new system its name.

The formwork surface thus moves from the horizontal preparation position to the vertical position for concreting. The butterflies prepared in this way are lifted directly into the battery formwork.

With the release of the crane hook, two battery compartments are ready for concreting: solid walls, sandwich walls, façade elements and balcony slabs in five-sided formwork smooth. Not a single work step is required in the narrow battery formwork itself..

The battery mould is completely assembled and concreted with the prepared moulds within a very short time. Already at strength of 3-8N/mm², the prefabricated parts can be removed from the battery together with the butterflies and stored outside the battery for curing. Previous experience of our customers shows that several sets of the hinged formwork make up to 4 concreting passes possible within 24 hours with the Schmetterlingsbatterie®. If a duplex battery is used, higher turnover rates are possible.

The Butterfly Formwork® can be used without a battery as a substitute for a tilting table. The installation of structural matrices is usually much less complicated in a horizontal position than with vertical formwork surfaces. The Schmetterlingsschalung® is also suitable for a combination of horizontal and vertical concreting, e.g. for façade slabs. The cast stone or clinker facing layer can be concreted lying down; the base layer is then produced standing up in the battery formwork for a formwork-smooth inner wall surface.

* BT innovation distributes the Butterfly mould and Butterfly Battery® for stationary applications on the basis of an exclusive licence from Umdasch Group NewCon.

Advantages of the Butterfly Formwork®

Successfully used by market leaders
Combination of advantages of horizontal and vertical production
Increased capacity and productivity (up to 3 times compared to tilting table)
Small footprint (approx. 1/3 compared to tilting table)
Lower investment costs than tilting table
Reduction of production costs by up to 40%
Efficient, cost-effective heating systems due to compact design
5-sided formwork-smooth precast concrete parts
Seam- and joint-free formwork surfaces up to 16.0m x 4.5m
High flexibility for solid wall, sandwich wall,façade elements, balcony slabs
Special products: Solid slab, protective walls, retaining and bulkhead walls, etc.
Use of laser projection possible (in contrast to standard battery)
Equipment available for the entire production process (e.g. roller conveyors/friction wheel drive)