Is performance-related cutting possible on your machine? As nowadays the economical requirement is more important than ever, modern machines are required.
The Liebherr series LC ensures reliable processing of the required torques and cutting forces. The capability of modern CNC-Gear hobbing machines is emphasized herewith. Quality requirements such as accuracy, stability and temperature resistance are fulfilled with this machine concept. Stable processes are realized during pre- and finish hobbing.
Model Name
|
LC 60 / LC 100 / LC 130
|
---|---|
Max. workpiece diameter (mm)
|
60 / 100 / 130
|
Max. nominal module for steel (mm)
|
2.75
|
Hob slide travel (axial) (mm)
|
200
|
Table diameter (mm)
|
125
|
Table speed (rpm)
|
1,400
|
Center distance hob/work table (min. mm)
|
10
|
(max. mm)
|
150
|
Hob head swivel angle (degrees)
|
+/-45
|
Max. shift travel (mm)
|
160
|
Max. hob diameter (mm)
|
80
|
Max. hob length/max. toothed length (mm)
|
285/190
|
Rapid traverse, axial (mm/min)
|
7,500
|
Rapid traverse, radial (mm/min)
|
10,000
|
Rapid traverse, tangential (mm/min)
|
15,000
|
Rapid traverse, A-axis (°/s)
|
30
|
Hob spindle speed (rpm)
|
7,000
|
Drive power, hob spindle (kW)
|
15
|
Weight of machine with tailstock column (Approx. kg)
|
10,000
|
Key features
Model Name
|
LC 80 / LC 120 / LC 150 / LC 180
|
---|---|
Max. workpiece diameter (mm)
|
80 / 120 / 150 / 180
|
Max. nominal module (mm)
|
3(5)
|
Workpiece weight (kg)
|
15
|
Max. workpiece length (manual loading) (mm)
|
-50 ... +450
|
Max. hob slide travel (axial travel) (mm)
|
250/400
|
Table diameter (mm)
|
145
|
Table speed (min-1)
|
150/250/800
|
Drive power of table (kW)
|
5.8/19.0
|
Center distance hob/work table (min. mm)
|
10
|
(max. mm)
|
200
|
Hob head swivel angle (degrees)
|
+/-45
|
Hob arbor main bearing
|
Cylindrial, HSK, SK
|
Max. shift travel (mm)
|
180
|
Max. hob diameter (mm)
|
90
|
Max. hob length (mm)
|
220
|
Max. Hob speeds (min-1)
|
1,000/1,500/2,000/3,000/6,000
|
Driving power hob spindle (kW)
|
15/23
|
Weight of machine with tailstock column (ca. kg)
|
10,000
|
Total connected load (ca. kVA)
|
25-35
|
Key features
Model Name
|
LC 180 DC
|
---|---|
Max. workpiece diameter (mm)
|
180
|
Max. nominal module (mm)
|
3
|
Axial travel (mm)
|
250 / 400
|
Max. shift travel (mm)
|
180
|
Max. hob diameter (mm)
|
90
|
Clamp length (mm)
|
213
|
Max. Hob speeds (min-1)
|
6000
|
The great advantage of the LC 180 gear hobbing machine with the new separate Chamfer Cut unit is the simultaneous chamfer in a second machining position – two machines in one, so to speak. The LC 180 DC combines high chamfer quality with single-cut machining. After gear hobbing in the customary single-cut strategy, additional precise and repeatable chamfers are created with the appropriate chamfer cutter, and that with maximum economied performance.
Key features
Model Name
|
LC 200 / LC 300 / LC 380 / LC 500
|
---|---|
Max. workpiece diameter (mm)
|
200 / 300 / 380 / 500
|
Max. nominal module (mm)
|
7/12
|
Workpiece weight (kg)
|
100
|
Max. workpiece length (manual loading) (mm)
|
680 (1,200)
|
Max. hob slide travel (axial travel) (mm)
|
600
|
Table diameter (mm)
|
180 / 250 / 320 / 320
|
Table speed (min-1)
|
100/200/400
|
Drive power of table (kW)
|
5.56/11.8/15.0
|
Center distance hob/work table (min. mm)
|
15
|
(max. mm)
|
400
|
Hob head swivel angle (degrees)
|
± 35/45
|
Hob arbor main bearing
|
Cylindrial, HSK, SK
|
Max. shift travel (mm)
|
200/300
|
Max. hob diameter (mm)
|
160/220
|
Max. hob length (mm)
|
230/330
|
Max. Hob speeds (min-1)
|
500/750/1,500/3,000
|
Driving power hob spindle (kW)
|
14/27
|
Weight of machine with tailstock column (ca. kg)
|
16,000
|
Total connected load (ca. kVA)
|
35-50
|
Key features
Model Name
|
LC 600 / LC 700 / LC 800 / LC 1000 / LC 1200 / LC 1400 / LC 1600 / LC 1800 / LC 2000
|
---|---|
Max. workpiece diameter (mm)
|
600 - 2000
|
Max. nominal module for steel (mm)
|
16-24
|
Max. hob slide travel (mm)
|
1000-1400
|
Table diameter (mm)
|
525 - 1200
|
Table speed (min-1)
|
10-80
|
Center distance cutter/table (min. mm)
|
50-180
|
(max. mm)
|
440-1300
|
Hob head swivel angle (degrees)
|
± 35-45
|
Hob arbor main mounting
|
SK 45/HSK-A 80; SK 50/HSK-A 100
|
Max. shift/tangential travel (mm)
|
220-320
|
Max. hob diameter (mm)
|
210-450
|
Max. hob length (mm)
|
260-605
|
Cutter speeds (min-1)
|
375/500/750/1.000; 275/360/450/600
|
Drive power - cutter spindle (kW)
|
30-45
|
Machine weight with tailstock column (appr. kg)
|
21,000-26,500
|
Total connected power (max. kVA)
|
65-80
|
For the development of this machine series the characteristics of the very successful new machine generation from Liebherr was systematically transferred to the application of the universal machines LC 600 – LC 2000. The necessary flexibility for different applications is achieved with a two-piece machine bed. With this concept the machines can be optimally configured to customer specific requirements. The self-supporting, very rigid design permits a machine installation directly on the floor, without a special foundation. Chip removal is accomplished through the machine bed with the main chip conveyor arranged lengthwise. The machine bed and laterally arranged coolant tanks hold approx. 800 l of coolant.
Key features
Model Name
|
LC 2000 / LC 2500 / LC 3000 / LC 4000 / LC 6000 / LC 8000 / LC 10000 / LC 12000 / LC 16000
|
---|---|
Max. workpiece diameter (mm)
|
2000-16000
|
Max. nominal module during hobbing/profile milling (mm)
|
24-100
|
Hob slide travel (mm)
|
1200-2400
|
Lowest hob head pos. above table (mm)
|
600-900
|
Table load (kN)
|
200-2000
|
Table bore continuous (mm)
|
500-1500
|
Max. hob head swivelling angle (degrees)
|
+/- 45°
|
Max. shift travel/tangential travel (mm)
|
300-700
|
Max. hob diameter (mm)
|
320-650
|
Max. hob length (mm)
|
440-900
|
Hob speeds (min-1)
|
150-250
|
Drive capacity hob spindle (kW)
|
53-120
|
Total connected load (kW)
|
125-320
|