24/09/2026
Rising with precision in Istanbul 🇹🇷🏗️
A unique observation tower in Istanbul, built using our advanced conical slipform system — combining continuous concreting with precise control of a constantly changing geometry.
📐 Tower geometry & key figures:
• Height: 37.350 m
• Square cross-section
• Base dimension: 4.40 × 4.40 m
• Top dimension: 3.30 × 3.30 m
• Wall thickness: 300 mm
• Conicity: 14.7 mm/m
• Slipforming time: just 11 days
The special challenge was the conical geometry. Unlike a conventional vertical slipform, the formwork had to continuously adapt to the changing dimensions of the tower while maintaining the required alignment, wall thickness and concrete quality throughout the entire climb.
The result: 37.350 metres of continuously slipformed concrete in only 11 days.
A great example of how our specialized conical slipform technology can make complex concrete structures efficient, precise and fast.