1-Saddle CNC Lathes LB35Ⅲ / LB45Ⅲ | PRODUCTS

PRODUCTS

Rigid spindle for fast, heavy-duty turning

3-point bearing support for steady, powerful cutting
(double-row cylindrical roller bearings plus highspeed duplex angular contact ball bearings)
Housing cooled for minimal thermal deformation
Unique labyrinth construction keeps coolant from penetrating spindle bearings

Higher production efficiency with fast machine movement: Multitasking V12 turret gives rise to highly efficient machining; L (lathe) and M (milling) tools can be mounted in all stations

LB35Ⅲ (M), LB45Ⅲ (M) VDI specs

Quick change tooling system used
LB45Ⅲ (MY) radial tooling specs

Powerful milling with high power, high torque motor
Faster machine movement reduces non-cutting time
- Fast turret rotation of 0.3 sec/1 index (LB35Ⅲ)
  Rotation speed is also unaffected by unbalanced tooling
  * LB45Ⅲ is 0.7 sec/1 index
- Further reduction in non-cutting time with high-speed rapid
  traverse of X axis: 15 m/min, Z axis: 20 m/min
  Uses backlash-free, direct drive mechanism on X axis
Powerful clamping to match heavy-duty turning
- Big coupling [LB35Ⅲ : ø354 (ø13.94), LB45Ⅲ : ø460 (ø18.11)] for powerful hydraulic clamping on turret
- Large turret but minimal interference
  [LB35Ⅲ : 570 mm (22.44 in.), LB45Ⅲ : 700 mm (27.56 in.)] across flats
- NC turret with servo motor drive

Achieves steady machining with high dimensional stability: Machining dimensional change over time of ø17 μm (LB35Ⅲ actual data); In addition to maintaining high dimensional accuracy when room temperature changes, Okuma's Thermo-Friendly Concept provides high dimensional accuracy during machine startup and machining restart.
To stabilize thermal deformation, warming-up time is shortened and the burden of dimensional correction during machining restart is reduced.

Click here for details on the Thermo-Friendly Concept

Wide-range of variations

Process-intensive machining with the Y axis
1-chuck machining even with complexshaped workpieces (LB45Ⅲ MY specs)
- A wide range of milling based on highly precise, wide-ranging Y axis travel with a double slide system
- Achieves process-intensive machining with 1-chucking
The best tailstock with built-in center for machining shafts
- Highly-rigid built-in center (standard);
  Quill diameter LB35Ⅲ : ø120 mm, LB45Ⅲ : ø130 mm
  Built-in tailstock MT. No. 5

Item	Unit	LB35Ⅲ	LB45Ⅲ
Standard chuck size	in	12	15
Max turning dia	ømm (øin)	460 (18.11)	660 (25.98)
Max work length	mm (in)	850, 1,500, 2,000 (33.46, 59.06, 78.74)	1,000, 2,000, 3,000, 4,000 (39.37, 78.74, 118.11, 157.48)
Spindle speed	min^-1	3,200	2,800
Turret		V12	V12
Motor	kW (hp)	30/22 (30 min/cont) (40/30)	37/30 (30 min/cont) (50/40)
Machine size (W × D × H)	mm (in)	4,015 × 2,663 × 2,210 (158.07 × 104.84 × 87.01) 4,885 × 2,663 × 2,325 (192.32 × 104.84 × 91.54) 5,910 × 2,663 × 2,325 (232.68 × 104.84 × 91.54)	4,260 × 3,358 × 2,587 (167.72 × 132.20 × 101.85) 5,760 × 3,358 × 2,617 (226.77 × 132.20 × 103.03) 7,010 × 2,920 × 2,505 (275.98 × 114.96 × 98.62) 8,570 × 3,181 × 2,545 (337.40 × 125.24 × 100.20
Spec extension		M	M, MY