Next Generation Slant-Bed CNC Lathes for Quick Turnaround Jobs

Designed as machines that anyone in the shop can run, SL-II Series CNC lathes from Milltronics USA, Inc. (Waconia, MN) are fast, accurate and affordable slant bed CNC lathes that are available in three models – SL6-II, SL8-II and SL10-II – and feature the latest Series 9000 CNC control that can be programmed either conversationally or with industry standard G-codes and M-codes. These next generation turning centers are true slant bed machines with robust roller guideways for superior accuracy and heavy cutting. They also feature Yaskawa Sigma V servo motors and drives, plus their ball screws are double nut pre-loaded, pre-tensioned and anchored on both ends. The spindles are manufactured by Royal and feature six rows of bearings that are permanently grease-packed and maintenance-free, with two rows of roller bearings up front, two rows of ABEC Class 7 P4 preloaded angular contact bearings mounted right behind and in back, with two additional rows of roller bearings that provide stiffness and rigidity for heavy cutting.

The SL6-II is a fast, compact machine with 6,000 rpm and 1,181 ipm rapids. It has a 6 in 3-jaw hydraulic chuck standard with a 2.2 in spindle bore. The AC spindle motor is 17.5 hp and has a Yaskawa drive. Maximum part diameter is 12.4 in and maximum part length is 13.4 in. Standard with a bi-directional 12 tool turret, it uses ¾ in x ¾ in shank tooling and maximum boring bar size of 1.25 in. The very popular 8 in chuck machine is the SL8-II with 4,000 rpm, an 8 in 3-jaw hydraulic chuck standard and a generous 3.2 in spindle bore. It has a 22 hp AC spindle motor with a Yaskawa drive. Rapid traverse rates are 1,181 ipm. Maximum part diameter is 14 in and maximum part length is 20.7 in. Standard with a bi-directional 12-tool turret, it uses 1 in x 1 in shank tooling and max boring bar size of 1.50 in.

The SL10-II is currently the largest of the new SL-II Series, featuring a 10 in 3-jaw hydraulic chuck standard with a large 3.62 in spindle bore. The AC spindle motor is 30 hp, produces 3,000 rpm and has a Yaskawa drive. Rapid traverse rates are 1,181 ipm. Maximum part diameter is 17.7 in and maximum part length is 28.4 in. Standard with a bi-directional 12-tool turret, it uses 1 in x 1 in shank tooling and a maximum boring bar size of 1.50 in. All of these models are available with optional programmable quill tailstocks, Renishaw presetters, lift-up chip conveyors, bar feed interface, parts catchers and/or collet chucks. “These machines are the newest additions to our reinvented product line,” said Louie Pavlakos, the general manager of Milltronics USA. “These machines are tough and powerful, but also affordable and easy-to-use. They all feature the new Series 9000 control that has all of the user-friendly features we are known for, but with upgraded hardware and a new Windows® operating system.”

The Series 9000 control runs on an Intel® Dual Core i5 64 bit processor and offers 4 GB memory, 120 GB disk storage, two USB ports and an enlarged 15 in LCD color touch screen. An optional feature for the Series 9000 is Milltronics Shop View (MSV), which allows users to access machine status and collect usage and diagnostic info per Industry 4.0. MSV is hosted in the cloud and can be accessed with a PC, tablet or smartphone. “The new SL-II Series are easy to program so anyone in the shop can run them,” noted Pavlakos. “They’re perfect machines for small to medium lot sizes, or jobs that shops must get out the door in a hurry.”

Milltronics USA, Inc., 1400 Mill Lane Waconia, MN 55387, 952-442-1410, [email protected], www.milltronics.com.