LIEBHERR LC 180 YEAR OF MAKE 2012 GEAR HOBBER

LIEBHERR LC 180 CNC Gear Hobbing Machine

Manufacturer: LIEBHERR Verzahntechnik GmbH, Kempten

Type: LC 180

Machine No.: FN 5032

Year of manufacture: 2012

CNC control: SIEMENS SINUMERIK 840D/DE solution line

Safety system: Siemens Safety Integrated / Functional Safety

Wiring diagram No.: 10755786 

Max. workpiece diameter: 180 mm

Max. module, hobbing: 3 mm

Max. module, profile milling: 5 mm

Max. gear width: approx. 220–250 mm

Workpiece table diameter: approx. 145 mm

Workpiece table speed: up to approx. 800 rpm

Min. centre distance: approx. 10 mm

Max. centre distance: approx. 200 mm

Hob head swivel range: approx. ±45°

Max. hob diameter: approx. 90 mm

Max. tool clamping length: approx. 211 mm

Hob spindle speed: up to approx. 6,000 rpm

Hob spindle power: approx. 23 kW

Tangential travel: approx. 180 mm

Tangential feed speed: up to approx. 7,500 mm/min 

CNC axes: X1, Z1, A1, B1, C2, Z4

X1 axis: radial axis

Z1 axis: axial axis

A1 axis: swivel axis

B1 axis: tool / hob spindle

C2 axis: workpiece table

Z4 axis: counter support / quill axis 

Hydraulic workpiece clamping

Hydraulic pressure: 70 bar

Workpiece clamping pressure: 10–70 bar

Workpiece release pressure: 20 bar

Clamping pressure: 70 bar

Hydraulic tank capacity: 116 litres

Hydraulic oil: HLP 46 

Central lubrication system

Lubricant: CGLP 68

Central lubrication capacity: 2.7 litres 

A-axis lubrication

Lubricant: CLP HC 680

Oil capacity: 6 litres 

Coolant system capacity: approx. 500 litres

Separate cooling system: approx. 95 litres 

HYDAC cooling unit

Type: FWKS-2/1.0/W/TP/400-50UL/WP24-20/1/53

Material No.: 3254088

Manufacturing No.: 13655820/001

Year of manufacture cooling unit: 2011 

Integrated workpiece handling

Gripper system

Transfer station

Counter support with quill

Lowering device

Centrifugal station

Chip flushing system

Chip conveyor

Screw-type chip conveyor 

SEW-EURODRIVE geared motor for chip conveyor

Type: R37 DR63L4

Motor power: 0.25 kW

Protection class: IP54

Insulation class: F

Gear ratio: 134.82 : 1 

Operating voltage: 400 V

Power supply: 3-phase

Frequency: 50 Hz

Rated current: 47 A

Main fuse: 63 A

Control voltage: 24 V

Connected load: 33 kVA