Liebherr LC 255 Hobber re-controlled by MTB with FANUC 18i CNC in 2006
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ConditionUsed
1 available
IN STOCK, CAN BE CUSTOMIZED TO MEET SPECIFICATIONS
This machine was re-controlled by MTB with a Fanuc 18i-MA CNC and Fanuc Alpha series digital drives and motors in 2006 for a USA customer. In Roughly 2020 the machine was surplused and has been sitting idle since then. In 2006 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 Tool Builders. Machine upgrades, software additions or other machine modifications or tooling that might be required are also available through Machine Tool Builders. 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.
Mechanical Specifications
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
Rapid traverse tangential 39.370 in/min 1000 mm/min
Machine Weight 14991 lbs. 6800 kg
Plant power 460 VAC 60 Hz
Features
Tailstock with pressure adjustment
Power clamping with pressure adjustment
Controls
Fanuc 18i CNC
Fanuc Alpha Digital Servos
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Three passes (same or alternating directions)
Hobbing of four sequential gears in one cycle
Inch / Metric switchable
Incremental shifting by part count
Crowning with high point offset capability
Taper compensation
Axial or radial/axial cycles
Radial only cycle
Programmable dwell
Automatic or manual overtravel and approach calculations
Tool offsets for quick size changes
Workpiece counter
Multiple program storage and retrieval
Shifting with table compensation
Auxiliary function selection (tailstock/clamping seq.)
Automatic or manual hob swivel angle calculation
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