Available in both horizontal and vertical models, and with more than 1,200 machines in service worldwide, the drawings, tooling, expertise, and manufacturing rights to the ultra-high production CNC lathes were acquired from Kitako Corporation, a division of Kitagawa Iron Works, in 2011.
About 4 Spindle 2NC Lathe
Part loading/unloading time can literally become to ZERO.
This type of machine has 4 spindle + 2 CNC slides. (2 spindles are simultaneously machining while the other 2 spindles are being loaded / unloaded).
After finishing both operations, the spindle drum indexes 180˚.
*The actual idle time( machine down time ) is only carrier indexing time.
( HS4200:almost 1.5 seconds. VT4-350:almost 5 seconds. )
Characteristics of 4 Spindle 2NC Lathe
- Maximizing productivity in a minimal footprint, one machine can simultaneously handle 4 different tasks.
- Turning the first operation
- Flipping the part
- Turning the seconds operation
- Part loading and unloading
- The minimal idle time.
Different from general single spindle NC lathe or 2 Spindle 2NC turret NC lathe, this 4 spindle machine can take longer time for non-machining operations(loading, un-loading, air-blow, etc.) without extra time. This characteristic is same as SHIMADA 2SI machine’s one. - The loading station is outside of the machine, separated from machining area by a cover. Our design affords not only a safe ergonomic work environment, but also flexible system layout to meet customer’s needs.
Suitable works for 4 Spindle 2NC Lathe
A1: In case that loading time is longer than machining time. The typical condition is loading time and long loading time are same.
Example)
Machining = 40sec. Loading = 40sec
Machining = 10sec. Loading = 10sec.
A2: In case that there is big machining time gap between OP1(front-side) and OP2(back-side) machining
Example)
OP1 = 25sec. OP2 = 10sec.
A3: In case of long chucking time, such as big size, long shaft, irregular shape parts
Especially, VT4-350 is the best solution for big size parts with long
loading time.
A4: High accurate and mass production parts
Various machining methods
1．AB/AB METHOD.
- Front and back side operation
2．AA/AA METHOD.
- Twin single operation
3．AA/BB METHOD.
- Twin front and back side operation with two 180 degree carrier indexes.
Structure of 4 Spindle 2NC Lathe
A large diameter precision curvic coupling is mounted on the spindle’s magazine-drum and provide hand-scraped for all slides as same as SHIMADA "2SI series"
