Sandvik Coromant 5728989 Boring Bar Modular Adapter

Product Description

The SANDVIK COROMANT 5728989 is a boring bar modular adapter designed to extend and configure modular boring systems in precision machining applications. With a 0.5 inch bore diameter and a 60 mm (2.362 inches) bore depth, this adapter connects tooling components in a modular assembly and delivers internal coolant directly to the cutting zone for improved chip evacuation and tool life. The body diameter measures 50 mm (1.969 inches), and the lock screw size is 2.45 inches. The C5 connection size ensures rigid, repeatable coupling in compatible modular tooling systems. Machinists and tooling technicians install this adapter in CNC boring and turning setups where modular reach and coolant delivery are required.

This adapter is suited for use in CNC machining centers and turning operations where modular boring bars are configured for internal diameter work. The screw thread lock design provides secure clamping of the boring bar extension within the adapter body. Internal coolant capability makes it appropriate for deep bore applications and materials that generate significant heat or require active chip removal. It is typically installed by machinists or tooling setup technicians in production or job shop environments working to tight bore tolerances.

Key Features

• 0.5 inch bore diameter for precise tool coupling in modular boring assemblies
• 60 mm (2.362 inches) bore depth with matching body length
• Internal coolant delivery to the cutting zone for extended tool life and chip control
• C5 connection size for rigid, repeatable modular interface
• Body diameter of 50 mm (1.969 inches) for stable overhang in boring applications
• Screw thread lock mechanism for secure adapter-to-bar clamping

Compatibility

Designed as an OEM-style modular component for C5 connection boring bar systems. The manufacturer part number associated with this adapter is C5-131-00060-500.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the spindle powered down and the machine in a safe, locked-out state. Ensure the mating modular surfaces are clean and free of chips or debris before assembly to maintain concentricity. Tighten the lock screw to the tooling system manufacturer's specification using appropriate tooling — do not use impact drivers on precision modular interfaces. Verify internal coolant passages are clear and properly aligned before returning the assembly to service.