Spindle Design Optimizes Cut Time

Toyoda's spindle, designed with a removable taper, enables quick changes to accommodate different types of tooling and maximizes machine uptime. This spindle was designed with the main components being easily accessible because of the spindle's modular design.

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Toyoda's spindle, designed with a removable taper, enables quick changes to accommodate different types of tooling and maximizes machine uptime. This spindle was designed with the main components being easily accessible because of the spindle's modular design.

The company's removable taper spindle design allows for easy change-over between CAT, HSK or Big-Plus tool holder types. The removable taper can easily be replaced if it is damaged because of impact or during high-speed applications. Now, the taper unit can be replaced in the field, and the machine can be up and running again quickly and at a lower cost.

The addition of the fourth bearing in the front bearing pack reduces vibration and helps the spindle withstand higher radial forces without damage. The spindle bearings are positioned over the tool taper and not the retention knob, creating a more rigid tool that can take on heavier cuts without chatter. This extends the life of the entire spindle assembly including the bearings, drawbar, taper and tooling while improving machining accuracy, the company says.

The spindle design also provides easier accessibility to subassemblies. Its modular hydraulic cylinder unit is easy to remove, giving technicians easier access to the drawbar assembly and allowing for easier repair.