Modern Machine Shop

SEP 2017

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208 MMS September 2017 mmsonline.com MODERN EQUIPMENT REVIEW D o o s a n M ac h i n e To o ls i ntro d u c e s th e N H P horizontal machining center series, built for rapid m e t a l re m ova l r ate s. D e s i g n e d to m e e t th e manufacturing demands of industries such as automotive and aerospace, the 400-mm pallet NHP 4000 and the 500-mm pallet NHP 5000 are fe ature -r ic h, yet c onf igura ble for a ra nge of applications. The NHP machines come with a 15,000-rpm spindle with 40 hp and 169 foot- pounds of torque. For heavy cutting, a high-torque, 15,0 0 0 -rpm spindle with 223 foot-pounds is a v a i l a b l e , a n d a 2 0 , 0 0 0 - r p m s p i n d l e i s i n development for customers with higher-speed precision applications. HMC DESIGNED FOR RAPID METAL REMOVAL FOR AEROSPACE, AUTOMOTIVE 2.3-sec. chip-to-chip times. In addition to min- imizing non-cut ting time, this design is also s a i d to r e d u c e v i b r a t i o n, r e s u l t i n g i n m o r e stable operation. In optimizing the construction of the machine, the footprint of the NHP has been reduced by 15 percent compared to the previous model, yet the machining area has been expanded by 24 percent. Center-through-bed chip manage- ment evacuates large volumes of chips quickly for enhanced efficiency. The pallets can accommodate loads ranging to 400 kg (880 lbs), for the NHP 4000 and 500 kg (1,100 lbs) for the NHP 5000. Both through-pallet and overhead hydraulic fix turing options are available. Additionally, the automatic pallet changer has been improved for faster indexing time. Doosan Machine Tools America, call 973-618- 2500 or visit doosanmachinetoolsusa.com. USB DIGITAL ACCELEROMETER DESIGNED FOR LONGEVITY, ACCURACY GTI Predictive Technology's next-generation USB digital accelerometer is designed to be compact and cost-effective. The delicate onboard electron- ics are housed in a protective insulated connec- tor rather than the vibrating accelerometer to Acceleration and deceleration of 1G on the X, Y and Z axes significantly enhances produc- tivity, the company says, delivering productivity increases as high as 25 percent over the previ- ous model. Ballscrew shaft and bearing cooling systems keep axis temperatures stable, ensur- ing precision. The random-access, disc-type tool magazine enables 0.9-sec. tool-to-tool change times and

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