Stainless Steel Large Caliber Turning Mandrels – 749002091

Key Features

• Premium 304/316 stainless steel construction – ensures exceptional durability and resistance to rust, chemicals, and extreme temperatures.
• Large caliber capacity – accommodates workpieces up to 150 mm in diameter, making it ideal for heavy‑duty turning applications.
• High‑precision CNC compatibility – engineered to integrate seamlessly with leading CNC turning centers and manual lathes.
• Optimized surface finish – ground to a tolerance of ±0.01 mm for superior concentricity and minimal vibration.
• Easy installation – quick‑change collet system reduces setup time and maximizes machine uptime.
• Heat‑treated for strength – delivers a hardness rating of 45 HRC, providing consistent performance under high cutting forces.
• Universal thread options – available in NPT, BSP, and metric threads to suit a wide range of spindle configurations.

Benefits for Your Machining Operations

• Increased productivity – reduced tool deflection and vibration lead to faster cutting speeds and shorter cycle times.
• Extended tool life – the stable, low‑runout platform minimizes wear on cutting tools, saving on consumables.
• Superior part quality – tighter tolerances and a smoother finish lower the risk of re‑work and scrap.
• Lower maintenance costs – stainless steel’s corrosion resistance means fewer replacements and less downtime.
• Scalable solution – suitable for both prototype machining and high‑volume production runs.

Technical Specifications

Compatibility & Installation

Designed to fit standard CNC lathe spindles and manual turning heads, the 749002091 mandrel can be installed in under five minutes using the supplied collet kit. Its universal thread options ensure compatibility with:

• Haas CNC Lathes
• DMG Mori Turning Centers
• Makino CNC Turning Machines
• Conventional Engine Lathes (metric & imperial)

Refer to the included installation guide for step‑by‑step instructions and safety recommendations.

Maintenance & Care

• Wipe the mandrel with a clean, lint‑free cloth after each use to remove chips and coolant residue.
• Apply a light coat of high‑temperature anti‑corrosion spray when storing for extended periods.
• Inspect the collet and thread interfaces monthly for wear; replace according to the maintenance schedule.
• Do not expose the mandrel to abrasive cleaning agents that could compromise the passivated surface.

Why Choose Our Stainless Steel Large Caliber Turning Mandrels?

Our commitment to precision engineering, rigorous quality control, and customer‑focused support makes the 749002091 mandrel the preferred choice for manufacturers who demand reliability and performance. Each mandrel is:

• Fully tested for dimensional accuracy and roundness.
• Backed by a 2‑year limited warranty.
• Supported by a dedicated technical service team ready to assist with setup, troubleshooting, and optimization.

Frequently Asked Questions

Can the mandrel be used for both steel and aluminum workpieces?

Yes. Its robust stainless steel construction provides the rigidity needed for steel while offering a gentle grip for softer materials like aluminum.

Is the mandrel compatible with high‑speed machining (HSM) applications?

Absolutely. The low‑runout design and heat‑treated hardness ensure stable performance even at spindle speeds up to 12,000 RPM.

What is the recommended coolant for use with this mandrel?

A water‑soluble coolant with a pH between 8 and 9 is ideal. Avoid acidic or chlorinated coolants that can attack the stainless steel surface.

Do you offer custom thread sizes?

Yes. Contact our sales team for a quote on custom thread configurations to match your specific machine requirements.