New Lightweight CoroMill 390 Available in 40 mm and 50 mm Diameter Variants

Press Release Summary:

  • Light weight of tool minimizes vibration and improves security during machining with long overhangs
  • Delivers light cutting action for smooth cutting performance
  • Ideal to perform long-reach face milling, deep shoulder, side milling, cavity milling and slot milling

Original Press Release:

Lightweight CoroMill® 390 Produced Using Additive Manufacturing Reduces Vibration in Long-overhang Milling

Lower cutter weight increases stability and productivity

In a move designed to offer customers a host of in-process benefits, cutting tool and tooling system specialist Sandvik Coromant is introducing its lightweight CoroMill® 390, which features a cutter body produced using additive manufacturing. The lighter overall weight of the tool helps to minimize vibration and improve security during machining with long overhangs. In turn, productivity is also increased.

Additive manufacturing offers a superior way of producing complex structures with high precision and without joints. Use of the process can make components lighter, stronger and more flexible than ever before. With regard to tool bodies, additive manufacturing allows for the generation of shapes and features not possible with metal cutting. Additionally, virtually any material can be printed, as in this case, a titanium alloy.

”When designing our new lightweight CoroMill® 390, material has been tactically removed to create the optimal cutter design for minimizing mass,” explains Thomas Wikgren, Manager Product Application Management, Sandvik Coromant. “This is called topological optimization, and it makes the cutter more compact and significantly lighter than a conventional version, thus helping machine shops to boost the productivity of their long-overhang milling operations. Moreover, a shorter distance between the damper in the adapter and the cutting edge improves performance and process security.”

Process security is paramount in a number of metal-cutting applications, not least when milling with long overhangs, which is a common requirement in components used by the aerospace and oil and gas sectors. Here, the generation of features such as deep cavities can be compromised by vibration, leading to slower production, shorter tool life and poor surface finish. The new lightweight CoroMill® 390 provides the solution. Combined with Silent Tools™ milling adapters, this optimized tooling combination subdues vibration to help maximize productivity and process security in demanding applications involving long overhangs. In addition, the inherent CoroMill® 390 concept delivers light cutting action for smooth cutting performance.

Lightweight CoroMill® 390 can perform long-reach face milling, deep shoulder and side milling, cavity milling and slot milling. The tool is available in 40 mm (arbor 16 coupling) and 50 mm (arbor 22 coupling) diameter variants. Three or four inserts (size 11) can be specified to suit the application. Differential pitch and internal coolant are provided on all cutters.

Sandvik Coromant

Part of global industrial engineering group Sandvik, Sandvik Coromant is at the forefront of manufacturing tools, machining solutions and knowledge that drive industry standards and innovations demanded by the metalworking industry now and into the next industrial era. Educational support, extensive R&D investment and strong customer partnerships ensure the development of machining technologies that change, lead and drive the future of manufacturing. Sandvik Coromant owns over 3100 patents worldwide, employs over 7,900 staff, and is represented in 150 countries.

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Contact details for editorial inquiries

Angela Roxas, PR & Sponsorships – Sandvik Coromant

Phone: (201) 294-9160


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