Deals Haimer to supply Kennametal spindle connector

Editor: Eric Culp

A manager at one of the partners dubbed the agreement a “perfect fit”.

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John Tucker from Kennametal (l.) and Andreas Haimer shake hands after agreeing to sell Kennametal´s KM4X spindle connection through the global network of toolholder supplier Haimer.
John Tucker from Kennametal (l.) and Andreas Haimer shake hands after agreeing to sell Kennametal´s KM4X spindle connection through the global network of toolholder supplier Haimer.
(Source: Kennametal)

Germany’s Haimer GmbH will use its global network to sell the KM4X spindle connection, according to Kennametal, the device’s US-based manufacturer.

John Tucker, president of industrial business at Kennametal Inc, said: “The KM4X spindle connection is the most rigid system in the world today. (It) enables higher metal removal rates, which facilitates higher machine tool utilization and reduced cost per part, while increasing the manufacturer´s available capacity. He noted taht having a partner like Haimer supply the device in addition to the German company’s toolholders such as the Safe-Lock will create a powerful production advantage for manufacturing companies. Haimer’s Safe-Lock combines form-fitting grooves in the tool shank with positive locking in the chuck to prevent tool pullout at high cutting forces.

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Andreas Haimer, director and member of the executive board of Haimer GmbH, said: “This agreement is a perfect fit because it confirms both Haimer and Kennametal as leaders in high-end innovative technologies for world manufacturing. We are honored and plan to actively support and educate our markets to the benefits of these mutually beneficial technologies.”

The spindle connection, the interface between the machine tool´s spindle and toolholder, has to provide the torque and bending load capacity compatible with machine-tool specifications. Cutting forces, particularly in roughing or machining high-strength materials, generate bending moments that will exceed the interface´s limits prior to reaching torque limits. By combining high clamping force and optimized interference levels, KM4X is said to provide a robust connection, extremely high stiffness, and bending load capacity for greatly improved performance in machining high-strength alloys and other materials. This means extremely high metal removal rates and more completed parts per day, the supplier said.

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Brendt Holden, president of Haimer USA, said: “We give a lot of seminars related to toolholding, particularly how to increase rigidity, accuracy, balance and security in metalworking. One of the most common questions we receive is ‘What´s the best style of spindle interface?’ With a unique high-strength spindle connection that also can accelerate to high rpms safely, we believe we now have the best answer.”

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