The BFT GIOTTO ULTRA SPRING KIT ML81-H (code 2617950) from BFT is a heavy-duty balancing spring kit designed for Giotto ULTRA barrier systems with boom lengths from 4 to 6 meters.
This spring kit is essential for compensating the increased weight and leverage of longer barrier booms. It ensures smooth and controlled movement, reduces mechanical stress on the motor and transmission system, and improves overall durability.
Proper selection of the spring kit is critical for safe and reliable operation. Using the correct spring ensures optimal balance, prevents excessive wear and guarantees consistent performance during opening and closing cycles.
The ML81-H kit is specifically calibrated for heavier and longer booms within the 4–6 m range and must be selected according to the installed boom configuration.
Installed inside the barrier housing, the spring kit is used both for new installations and as a replacement during maintenance or system upgrades.









