M42, is 220-390 rpm, M42 is the spindle shift to the second gear.
M43, is 390-800 rpm, M43 is the spindle shift to the third gear.
It is the data of the high and low gears of the lathe, depending on the machine, some of them are used to shift automatically, and some of them are used to tell the machine how many gears it is in now.
1, lathe is the main use of turning tool on the rotating workpiece turning machine. On the lathe can also be used to drill, reaming drills, reamers, taps, plate teeth and knurling tools for corresponding processing.
2, the application of CNC technology not only to the traditional manufacturing industry has brought about a revolutionary change, it is on the national economy of some important industries (IT, automotive, light industry, medical care, etc.) the development of an increasingly important role.
3, the current trend of development of CNC lathes is the trend of precision.
Expanded Information:
1, GSK983M-V, 980MD milling CNC system, GSK980TDa, 928TEII, 980TB1, 218TB lathe CNC system, DAP03 spindle servo drive, ZJY208, ZJY265 spindle servo motor and other new products into mass production.
New products such as GSK218M, 990MA milling machine CNC system, 928GA/GE grinding machine CNC system, 80SJT series servo motor and so on entered into small batch production.
2, GSK980TD series of lathe CNC system through the municipal science and technology achievement appraisal, won the first prize of science and technology awards in Guangzhou City, Baiyun District, and was assessed by the Guangzhou Software Industry Association as the 2007 "excellent software products".
3. Now we have 23 patents, including 3 invention patents, 8 utility model patents and 12 appearance patents; we have 11 software copyright registrations, and we have participated in the formulation of 16 national standards.
4. In 2008, we applied for 2 invention patents, and have authorized 2 utility model patents and 2 appearance patents.
Baidu Encyclopedia - Lathe
Reference website: Guangzhi Equipment Co.