Machine tool spindles are the heart of the machine tool and the most significant component when it comes to making parts. To meet today’s demands for higher productivity, the spindle must deliver higher speed requirements, increased metal removal rates, longer design life and improved reliability. Today, machine tools are required to perform a wider variety of tasks—under numerous speed and load conditions— and to undergo frequent tool changes.

Traditionally, damage caused by spindle impact has required replacement of the entire spindle. This lengthy process can be extremely costly in the way of downtime, parts and labor. If a machine tool is awaiting spindle repair or replacement, it is not making chips, often resulting in significant loss of productivity and therefore profits.

This is a frustrating reality that many machine tool owners have or will most likely experience; machine tool manufacturers should reconsider their spindle design. Today, Toyoda Machinery is the only manufacturer with a modular spindle design that simplifies the spindle replacement process.

Toyoda’s spindles are designed with a removable taper, providing easier access to subassemblies. This intelligent design allows technicians to quickly and easily replace the taper unit in the field, maximizing machine uptime. This design also allows for quick changes and accommodation of different types of tooling, allowing customers to match any production requirements with a quick switch.

Toyoda is the only manufacturer with this smart spindle design, which will help you optimize cut times and minimize intervals between operations. Without the need to replace the whole spindle, machine tools can be quickly up and running again and at a lower cost.

Recently the group leader of the Spindle Repair Department, Bill Gibler, talked about Toyoda Machinery’s spindle rebuild capabilities and inspection process. Toyoda’s spindle construction procedures and tolerance dimensions are proprietary information, allowing only Toyoda’s factory-trained engineers to rebuild a Toyoda spindle to OEM specifications.

They follow original factory processes, which includes strict standards and testing on every component. Performance testing is done with equipment specifically designed for this purpose. If any part of the testing process does not meet Toyoda’s rigorous standards, the entire test fails and the unit is disassembled to determine the cause.

“At Toyoda, we’re committed to making our customers successful and profitable,” says Gibler. “With our modular spindle design and rebuild capabilities, machines are up and running as quickly as possible, saving customers costs related to time, parts and labor.”

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