Seco® has unveiled its new BB732 boring bridges, a modular solution specifically engineered for deep boring operations using Steadyline® bars. Designed to handle both roughing and finishing applications, the BB732 bridges aim to deliver vibration-free performance, optimized coolant flow, and superior surface finish in a single, versatile tool.
Combining reliability, sturdiness, and cost efficiency
The BB732 boring bridges are tailored for use with the Steadyline SM40 shell mill holder, supporting diameters from 114mm to 301mm for roughing and up to 315mm for finishing. The conical-reinforced shape of the holder ensures high static and dynamic rigidity, up to three times greater than solid holders, while the Steadyline vibration damping system enables stable, high-precision machining even in demanding conditions.
Coolant directed straight to the cutting edge
“The BB732 boring bridges are designed to work seamlessly with Steadyline bars, especially the SM40 series, for deep boring jobs with larger diameter bars. One of the standout features is the optimized coolant flow – it’s directed right at the cutting edge to help break up chips and keep the insert cooler,” said Kavita Dandge, Global Product Manager Machine Solutions.
The BB732 bridges eliminate the need for separate tools for roughing and finishing, reducing inventory and setup time. With a built-in safety stopper to prevent block ejection due to centrifugal force, the system also prioritizes operator safety.
