Sandvik Coromant 5728218 Capto Weldon Shank Adapter

Product Description

The SANDVIK COROMANT 5728218 is a Capto to Weldon straight shank adapter designed to interface a C5 Capto modular connection with a Weldon-style straight shank toolholder. It accepts a 1-1/4 inch hole diameter and delivers a projection of 85.01 mm with a nose diameter of 54.30 mm and an overall length of 115.01 mm. Through-coolant capability allows cutting fluid to pass directly through the adapter to the tool cutting edge, supporting extended tool life in demanding metal cutting operations. This adapter is installed by machinists and toolroom technicians working with CNC turning, milling, or machining center setups where Capto-to-Weldon bridging is required.

This adapter is suited for machine tools equipped with a C5 Capto outside modular connection where Weldon straight shank tooling must be used. Typical applications include production machining environments running stainless steel, alloy steel, or high-temperature alloys where through-coolant delivery and rigid, repeatable toolholder positioning are critical. It is appropriate for both horizontal and vertical machining center configurations where the C5 Capto interface is the spindle-side standard.

Key Features

• C5 outside modular Capto connection interfaces directly with compatible Capto-equipped spindles
• 1-1/4 inch hole diameter accommodates standard Weldon straight shank tooling
• Through-coolant design channels cutting fluid to the tool tip for thermal management and chip evacuation
• 85.01 mm projection provides controlled reach for deep-pocket or obstructed-access applications
• 54.30 mm nose diameter supports stable clamping and minimizes runout at the tool interface
• Overall length of 115.01 mm allows predictable setup lengths in CNC offsets

Compatibility

Designed for use with machine tools equipped with a C5 Capto outside modular connection accepting Weldon straight shank toolholders with a 1-1/4 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. The machine spindle must be fully powered down and locked out before mounting or removing the adapter. Mating Capto surfaces should be inspected for chips, burrs, or contamination before seating, as surface debris directly affects runout and clamping force. Torque the clamping mechanism according to the machine tool manufacturer specifications for the C5 Capto interface size.