Sandvik Coromant 5755223 Turning Insert TRDC1304-F 1125

Product Description

The SANDVIK COROMANT 5755223 is a solid carbide turning insert in the CoroTurn TR series, designed for precision external turning operations on CNC lathes. The insert carries a dual-layer PVD coating — TiAlN and AlCr2O3 — applied over a 1125-grade carbide substrate. With a 60-degree diamond shape (Insert Shape Code T), a 0.4961-inch insert length, and an 11 mm inscribed circle, this insert is engineered for tight-tolerance turning where edge consistency and wear resistance are critical. It features a neutral hand orientation and an F chip breaker geometry. Licensed machinists and CNC operators install this insert in screw-retained toolholders compatible with the CoroTurn TR system.

This insert is suited for turning steel and stainless steel workpieces, corresponding to ISO material codes P and M respectively. The F chip breaker geometry promotes effective chip control at moderate feeds and depths of cut, making it appropriate for finishing and semi-finishing passes on steel components. The PVD TiAlN plus AlCr2O3 coating combination supports elevated cutting speeds while maintaining edge integrity on difficult-to-machine stainless grades. Typical applications include shaft turning, bore finishing on larger OD tools, and general-purpose profiling on horizontal and vertical CNC turning centers.

Key Features

• 1125-grade solid carbide substrate with dual PVD coating: TiAlN and AlCr2O3 for heat and wear resistance
• 60-degree diamond insert shape (Code T) with 2 cutting edges for economical use
• F chip breaker geometry optimized for controlled chip formation on steel and stainless steel
• Neutral hand orientation — compatible with both left- and right-hand toolholders where geometry allows
• Screw-held insert retention for repeatable seating and quick indexing
• ISO designation TR-DC1304-F 1125 for direct cross-reference with Sandvik Coromant toolholder specifications

Compatibility

Designed for use in CoroTurn TR series screw-retained toolholders accepting TRDC-style inserts with a 1304 insert size code. Primary workpiece materials are steel (ISO code P) and stainless steel (ISO code M). Verify toolholder pocket geometry against ISO code TR-DC1304-F 1125 before installation.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the manufacturer-specified torx or hex key to tighten the clamping screw to the toolholder torque specification listed in the CoroTurn TR toolholder documentation — do not overtighten, as this can fracture the insert or damage the pocket. Inspect the insert pocket and screw threads for debris or wear before seating the new insert.