Liebherr L402 CNC Gear Hobber

 Liebherr L402 CNC Gear Hobber

ManufacturerLiebherr

modelL402

skuSN 0460/6

Model
Manufacturer Liebherr
Model L402 CNC
Serial Number 0460/6
Year of manufacture 1984
Description
This machine is being offered in recertified condition. We can also offer it with a full rebuild or recontrol (Call for details). All recertified machines are fully cleaned. All moving slides, spindles and parts handling systems are inspected for problems. Any gibs or adjustable backlash systems are adjusted to the best possible settings. All hydraulic, coolant, lubrication and pneumatic systems are checked for proper functionality and leaks. All filters are replaced. All worn hoses, broken cables, connectors, buttons, lamps and wires are replaced. All guarding is installed and checked. All machine cycles are tested. Parts are cut to verify the machine capability. Charts from the test cutting are documented for your viewing.
Mechanical Specifications
Number of CNC controlled axes 4 X, Y, Z, A (index and differential by change gears)
Number of CNC controlled spindles 1
Pitch rating 3.18 DP 8 Mod
Maximum workpiece diameter 15.748 in 400 mm
Maximum axial travel 11.811 in 300 mm
Worktable diameter 16.535 in 420 mm
Table bore diameter 3.937 in 100 mm
Maximum Table Load 2248 lb force 10000 N
Maximum radial center distance 11.811 in 300 mm
Minimum radial center distance 1.181 in 30 mm
Maximum axial height from table top 18.701 in 475 mm
Minimum axial height from table top 6.890 in 175 mm
Maximum hob diameter 7.559 in 192 mm
Maximum hob length 9.843 in 250 mm
Maximum hob shift travel 7.874 in 200 mm
Maximum swivel angle -45 deg +45 deg
Hob speed range (Infinitely Variable) 60 to 480 RPM
Hob Spindle Power 11.4 HP 8.5 kW
Rapid traverse radial 62.992 in/min 1600 mm/min
Rapid traverse axial 7.362 in/min 187 mm/min
Rapid traverse tangential 14.724 in/min 374 mm/min
Machine Weight 20944 lbs 9500 kg
Plant power 460 VAC 60 Hz
Features
Tailstock with pressure adjustment
Power clamping with pressure adjustment
Controls
Allen Bradley 8200
Siemens 6RA DC Servo/Spindle Drives
Base Software
Two Cut 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
Multiple program storage and retrieval
Auxilliary function selection (tailstock/clamping seq.)
Automatic or manual hob swivel angle calculation
Machine Includes
Side mount coolant tank
Chip Conveyor
Full set of leveling wedges
One 1.25" hob arbor and nut
Handfull of change gears
Two copies of the operations manuals
Two copies of the maintenance documentation
30 Day return warranty on the machine