RONDA®
RONDA is your radius-adjustable circular formwork which consists of ready-to-use shuttering elements.
The no. 1 choice for forming curved walls. By using the integrated spindle system, the rugged, ready-to-use elements can be precisely adjusted to any desired radius upward of 2.75 m.
Videos & photos
Product advantages
Work safely
- Millimeter-precise radius adjustment using turnbuckles and fine-tune alignment thanks to lever edge on profiles
- Easy height extensions with the MANTO aligning panel clamp
- The element connector is easy to use and allows timber adjustments of up to 15 cm
- Easy turnbuckle operation using an open-ended spanner or tie rod (< Ø18 mm)
Work productively
- Short forming times due to ready-to-use elements available in 2 different widths and 3 heights
- 20 m² transferable via crane with no additional bracing
- Low transport volumes and excellent stackability due to a minimal element thickness of only 21 cm
- Inner and outer elements available in various heights
- Additional edge protection of the formwork facing with MANTO edge profiles on the outside
- The hat profile allows for a homogeneous, round surface without any kinks. The result is a clean, round concrete surface.
- Ronda can be combined with Manto. A transition from a straight wall to a curved wall can be created in a single step.
- By using an anchor strap with a DW20 anchor rod, 50% of the anchor points can be eliminated. This corresponds to 4 anchor points for a large 250/300 cm element.
- Crane transport with a crane sling. No formwork hook required!
- Plastic formwork facing for a clean surface.
- Flush, tight connection thanks to the Manto edge profile.
Application & use
Download the user guide here. Click on the name of a chapter to access it directly.
Overview of user guide
Technical data
Element heights | 150 | 200 | 300 cm |
Element widths | 128 | 250 cm (outer elements) 123 | 240 cm (inner elements) |
Element thickness | 20.80 cm (straight state) |
Plastic formlining | Plywood 14 mm |
Max. concrete pressure | Up to 60 kN/m² |
Radius range | 5.50 – 35.00 m (inside) |
Relevant standards | Complies with DIN 18216 | EN 1993 |
Element connection | Via element connector Infills up to 15 cm possible |
Height extension | Via MANTO aligning panel clamp |
Corrosion protection | Hot-dip galvanization of all steel profiles and parts |
Forming/stripping times | t = 0.30 – 0.60 h/m² |
Component max. weight | Outer element 300 x 250 = 367.00 kg |
Special features |
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