HMC Features 50-Taper Spindle

The HM500S/50 HMC allows for the heavy-duty cutting of small parts, as well as hard-to-cut materials.

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The HM500S/50 HMC allows for the heavy-duty cutting of small parts, as well as hard-to-cut materials. The release of this 50-taper version of the HM500S series (500-mm table size, 19.68”) has allowed for an increased boring capacity of 250-mm diameter (9.84”) and the cutting of tough materials such as titanium.

For enhanced precision, this machining center employs high-load roller guides and double anchored ballscrews on all three axes (XYZ). The HM500S/50 includes a cooling design where circulation of cooling oil around the ballscrews, ballscrew supports housings and motor mounting surfaces prevents thermal displacement. For reliability, the HM500S/50 is equipped with a single steel angle side shutter that protects the Z-axis slideway. An improvement over conventional two or three-piece shutter systems that are prone to damage when swarf enters the gaps of the shutter, the HM500S/50 keeps swarf away from the shutter section and distributes it to troughs on either side of the bed.

Other qualities of the HMC include spindle speeds ranging from 35 to 12,000 rpm; X-axis travel of 630 mm (24.80”), Y-axis travel of 620 mm (24.41”), Z-axis travel of 710 mm (27.95”), a rapid traverse rate of 54 m/min (2126”) and a 40/34-hp spindle motor.

The HMC is especially useful for construction and automotive applications, including cast iron gearboxes and diesel engine coolant pump housings. Accepting a range of cutting tools, the machine is suitable for a variety of other applications as well.