LIEBHERR LC-255 – Retrofit 2006
CNC 5 AXIS GEAR Hobbing Machine
| Number of CNC controlled axes | 5 | ||||
| Number of CNC controlled spindles | 1 | ||||
| Pitch rating | 4.23 | DP | 6 | Mod | |
| Maximum workpiece diameter | 9.843 | in | 250 | mm | |
| Maximum axial travel | 9.843 | in | 250 | mm | |
| Worktable diameter | 9.843 | in | 250 | mm | |
| Worktable Worm Diameter | 11.220 | in | 285 | mm | |
| Table bore diameter | 3.937 | in | 100 | mm | |
| Maximum radial center distance | 8.071 | in | 205 | mm | |
| Minimum radial center distance | 0.787 | in | 20 | mm | |
| Maximum axial height from tabletop | 15.354 | in | 390 | mm | |
| Minimum axial height from tabletop | 5.512 | in | 140 | mm | |
| Maximum hob diameter | 5.709 | in | 145 | mm | |
| Maximum hob length | 9.055 | in | 230 | mm | |
| Maximum hob shift travel | 6.693 | in | 170 | mm | |
| Maximum swivel angle | -45 | deg | +45 | deg | |
| Hob speed range (Infinitely Variable) | 48 | to | 480 | RPM | |
| Hob Spindle Power | 10.7 | HP | 8 | kW | |
| Rapid traverse radial | 118.110 | in/min | 3000 | mm/min | |
| Rapid traverse axial | 78.740 | in/min | 2000 | mm/min |
This machine was recontrolled in 2006 with a Fanuc 18i-MA CNC and Fanuc Alpha series digital drives and motors. An entire new electrical cabinet was installed along with all new equipment inside the electrical cabinet. All support, service, parts and training are still available through. Machine upgrades, software additions or other machine modifications or tooling that might be required are also available through. The software in the machine is fully conversational based so the simple question and answer format allows quick and easy programming of all spur and helical gears within the machine size and DP rating.
