Integral Drive Spindle

Makino’s (Mason, OH) high-torque and high-thrust spindle—available on three different HMCs to provide unparalleled productivity and reliability that helps customers reduce costs from their manufacturing operations—will be showcased at Westec.

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Makino’s (Mason, OH) high-torque and high-thrust spindle—available on three different HMCs to provide unparalleled productivity and reliability that helps customers reduce costs from their manufacturing operations—will be showcased at Westec. It has been expanded from its initial offering on the Makino a81, which was renamed the Makino a81M, and is now also available on the company’s A99E and A100 E HMCs. The proprietary design of the integral drive spindle combines the optimum blend of speed and superior rigidity necessary to take aggressive cuts. The spindle has an available 744 foot pounds (1,009 Nm) of torque from zero to 392 rpm. To match that torque, the spindle employs 50 hp from 2,000 to 5,000 rpm. This duty rating and continuous output of the Makino spindle lends itself to difficult cutting scenarios. Long reach and large diameter boring operations require a great deal of torque, particularly at low rpm. For applications such as tapping, where a significant amount of spindle stopping, starting and reversal occurs, the Makino high-torque spindle is significantly faster and has less idle time. With four rows of angular center trough hinge conveyor bearings in the front and two rows in the back, the a81M has a cartridge-style spindle with jacket cooling and oil/air lubrication. This helps provide enhanced performance and serviceability, and lower maintenance labor costs.