Liebherr L401 Gear Hobber

 Liebherr L401 Gear Hobber

ManufacturerLiebherr

modelL401

skuSN 0451/8

Model
Manufacturer Liebherr
Model L401
Serial Number 0451/1
Year of manufacture 1977
         
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
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 6.102 in 155 mm
         
Maximum hob diameter 7.323 in 186 mm
Maximum hob length 6.693 in 170 mm
Maximum hob shift travel 5.315 in 135 mm
         
Axial feedrate max (range 1) 0.020 in 0.5 mm/min
Axial feedrate min (range 1) 0.009 in 0.23 mm/min
Axial feedrate max (range 2) 0.250 in 6.35 mm/min
Axial feedrate min (range 2) 0.035 in 0.9 mm/min
Radial feedrate max 0.472 in 12 mm/min
Radial feedrate min 0.039 in 1 mm/min
Rapid traverse radial 29.921 in 760 mm/min
Rapid traverse axial 39.370 in 1000 mm/min
         
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
         
Machine Weight 20944 lbs 9500 kg
Plant power 460 VAC 60 Hz
         
Features
Tailstock with pressure adjustment
Power clamping with pressure adjustment
         
Controls
Relay Logic
 
Base Software
Two Cut Cycle
Inch / Metric switchable
Incremental shifting by part count
Axial or radial/axial cycles
Radial only cycle
Programmable dwell
         
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