Sandvik Coromant 5727828 Boring Bar Modular Adapter

Product Description

The SANDVIK COROMANT 5727828 is a boring bar modular adapter designed for precision internal boring operations on CNC machining centers and turning systems. This adapter features a 1.5748-inch (40 mm) bore diameter with a bore depth of 1.2008 inches (30.50 mm) and a body length of 5.0354 inches (127.90 mm). The C4 connection size provides a rigid, repeatable interface for modular tooling systems. External coolant delivery directs fluid to the cutting zone for improved chip evacuation and tool life. A screw thread lock mechanism with a 5.22-inch lock screw secures the assembly. Machinists and CNC setup technicians install this adapter in production and job-shop environments.

This modular adapter is suited for use in CNC lathes, turning centers, and machining centers configured with compatible C4 modular tooling interfaces. It is applied in both roughing and finishing boring operations on steel, cast iron, and similar workpiece materials where coolant control and toolholder rigidity are critical. The adapter accommodates the lock screw part number 5758505, making it a direct fit within a coordinated SANDVIK COROMANT modular system. It is appropriate for shops running production runs or precision one-off work where consistent bore sizing and repeatable tool setup are required.

Key Features

• 1.5748-inch (40 mm) bore diameter for precise internal boring fitment
• C4 modular connection size for rigid, repeatable tool interface
• Bore depth of 1.2008 inches (30.50 mm) supports controlled engagement
• Body length of 5.0354 inches (127.90 mm) with 40 mm body diameter
• External coolant configuration for direct coolant delivery to the cutting zone
• Compatible lock screw part number 5758505 for secure thread lock assembly

Compatibility

Designed for use with SANDVIK COROMANT C4 modular tooling systems. Compatible lock screw part number is 5758505. The manufacturer part number reference for this adapter is C4-RC2085-24102-16M.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before mounting or removing the adapter. Ensure the mating C4 interface surfaces are clean and free of chips or debris before assembly. Verify lock screw torque and seating per the tooling system documentation before returning the machine to operation.