Modern Machine Shop

NOV 2017

Modern Machine Shop is focused on all aspects of metalworking technology - Providing the new product technologies; process solutions; supplier listings; business management; networking; and event information that companies need to be competitive.

Issue link: https://mms.epubxp.com/i/891901

Contents of this Issue

Navigation

Page 172 of 196

170 MMS November 2017 mmsonline.com MODERN EQUIPMENT REVIEW Milltronics USA introduces its SL-II series of slant-bed CNC lathes. Designed for ease of use, they feature the company's Series 9000 control, which can be programmed conversationally or with G and M code. The machines have roller guideways for accuracy and heavy cutting, and Yaskawa Sigma V servomotors and drives. The double -nu t ba llsc rews a re pre -load e d, pre - tensioned and anchored on both ends. A bidirec- tional 12-tool turret is standard. The Royal spindles feature six rows of bearings. They are permanently grease-packed and maintenance-free. CNC LATHES EASE PROGRAMMING 1,181 ipm. The maximum part diameter is 17.7" and maximum part length is 28.4". It uses 1" × 1" shank tooling and has a maximum boring bar size of 1.50". All models are available with programmable quill tailstocks, Renishaw presetters, lift-up chip conveyors, bar feed interface, parts catchers and collet chucks. Milltronics USA Inc., call 952-442-1410 or visit milltronics.net. GRINDER OFFERS ALTERNATIVE TO TURNING HIGH-VOLUME AUTOMOTIVE PARTS When manufacturing components between 2 and 20 mm in diameter, Junker's Grindstar grinding machine offers an alternative to turning. From batch sizes of 200,000, the machine's short cycle times and long service life can reduce cost per workpiece by as much as 25 percent, the company says. Its productivity suits it for large-scale series manufacturing in the automotive industry. The grinding method enables the entire work- piece contour to be ground in a single processing operation. Because grinding involves lower cut- ting forces than those occurring during turning, workpieces can be ground faster. It coordinates the workpiece, abrasive and machine to increase productivity over that of a lathe. Every step, from material cutoff to profiling and ejection is covered in a single machine, enhanc- i n g p ro c e s s re l i a b i l i t y, m i n i m i z i n g m a c h i n e The SL6-II features 6,000 rpm, 1,181-ipm rapid traverse rates, a 6" three-jaw hydraulic chuck, a 2.2" spindle bore and a 17.5-hp AC spindle motor. The maximum part diameter is 12.4" and maximum part length is 13.4". It uses 3 / 4 " × 3 / 4 " shank tooling and has a maximum boring bar size of 1.25". The SL8-II has 4,000 rpm, an 8" three-jaw hydraulic chuck, a 3.2" spindle bore, a 22-hp AC spindle motor and rapid traverse rates of 1,181 ipm. Its maximum part diameter is 14" and maximum part length is 20.7". It uses 1" × 1" shank tooling and has a maximum boring bar size of 1.50". The SL10-II features a 10" three-jaw hydraulic chuck, a 3.62" spindle bore, a 30-hp AC spindle motor, 3,000 rpm and rapid traverse rates of

Articles in this issue

Links on this page

Archives of this issue

view archives of Modern Machine Shop - NOV 2017