Seco Boring Bridges Optimize Deep-Hole Boring Operations

Source: Seco Tools

Seco Tools’ BB732 boring bridge is a modular solution designed for deep boring operations with Steadyline bars. Engineered for both roughing and finishing tasks, BB732 bridges can provide vibration-free performance, optimized coolant flow and high-quality surface finishes.

The BB732 boring bridges are tailored for use with the Steadyline SM40 shell-mill toolholder, supporting diameters from 114-301 mm for roughing and up to 315 mm for finishing. The conical-reinforced shape of the toolholder is said to provide high static and dynamic rigidity, up to three times greater than solid toolholders, while the Steadyline vibration damping system enables stable, high-precision machining even in demanding conditions.

According to the company, 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.

“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,” says Kavita Dandge, global product manager, machine solutions.