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RUNDFLEX Circular Wall Formwork

Continuously adjustable circular formwork for radii greater than 1.00m without panel alterations
3.60 m high RUNDFLEX formwork for construction of a sewage treatment plant with a radius of 13.76 m.
Spindles are adjusted using the combi ratchet spanner SW24.
With RUNDFLEX, more complicated geometries with variable radii can also be cost-effectively realized.
The use of RUNDFLEX on climbing brackets during the construction of a bridge.
The radii of the RUNDFLEX panels are adjusted with spindles. Adapting to changing radii is therefore carried out extremely quickly.


The RUNDFLEX wall formwork provides pre-assembled standard panels for curved walls. These can be quickly adjusted to suit the required radius and without any modification work on the panel. Therefore, RUNDFLEX is especially effective for realizing structures such as wastewater treatment plants, spiral ramps for multi-storey parking facilities or silos where radii are constantly changing.

Less installation effort
with pre-assembled units and the proven BFD Alignment Coupler

Fast adjustment
through a simple adjustment procedure by means of a template and spindles with self-cleaning hexagonal threads

Especially variable
through the flexible adjustment of wall internal radii of 1.00 m and larger

Technical Details

  • Pre-assembled panels
  • Maximum permissible fresh concrete pressure 60 kN/m²
  • 6 panel heights (0.60 m / 1.20 m / 1.80 m / 2.40 m / 3.00 m / 3.60 m) and 3 panel widths (external: 2.50 m / 1.28 m / 0.85 m)
  • Radii can be quickly adjusted by means of spindles and a template
  • Panel connections and compensations up to 10 cm with the BFD alignment coupler
  • Pre-determined tie points
  • Horizontal extensions up to 7.80 m panel heights
  • Components available for working and concreting scaffold as well as for providing support