The LB321 is a double column, fixed rail bridge machine designed for heavy cutting applications. It features a robust geared-head spindle, a hydraulic counterbalance system on the headstock, and a Meehanite cast iron base. These features allow the machine to excel in the heaviest of cuts.
The LB321YM model has extended Y-axis travel with five-face machining capabilities to allow for the machining of complex workpieces. This machine features automatic tool changes in the vertical and horizontal orientations and offers automatic clamping of the headstock. Headstock options include 30 degree, 90 degree, extension, and manual universal.
| Table Size | 118" x 78.7" (3,000 mm x 2,000 mm) |
| X-Axis Travel | 120.5" (3,060 mm) |
| Y-Axis Travel | 84.6" (2,150 mm) |
| Y-axis Travel for -YM Configuration | 110.2" (2,800 mm) |
| Z-Axis Travel | 31.5" (800 mm) |
| Optional Z-axis Travel | 39.4" (1,000 mm), 47.2" (1,200 mm), 55.1" (1,400 mm) |
| Distance from Spindle Nose to Table Top | 7.9" to 39.4" (200 mm to 1,000 mm) |
| Distance Between Columns | 90.5" (2,300 mm) |
| Maximum Table Load | 26,450 lb (12,000 kg) |
| Spindle Drive Motor (30 min. / cont.) | 6,000 RPM: 35 HP (26 kW) / 30 HP (22 kW) |
| Spindle Drive Motor (30 min. / cont.) | 5:000 RPM: 40 HP (30 kW) / 35 HP (26 kW) |
| Spindle Output Torque | 5:000 RPM: 40 HP (30 kW) / 35 HP (26 kW) |
| Spindle Output Torque | 5,000 RPM: 1,115 ft-lb (1,512 Nm) |
| Spindle Speed | Gearbox (CAT50): 6,000 RPM |
| Spindle Speed | Gearbox (CAT50): 5,000 RPM |
| Rapid Feedrate (X axis) | 945 ipm (24 m/min) |
| Rapid Feedrate (Y axis) | 787 ipm (20 m/min) |
| Rapid Feedrate (Z axis) | 590 ipm (15 m/min) |
| Maximum Cutting Feedrate | 394 ipm (10 m/min) |
| Tool Storage Capacity | 32 Standard (60, 90, 120 Optional) |
| Standard Floor Space | 339" x 209" x 171" (8,610 mm x 5,300 mm x 4,350 mm) |
| Standard Net Weight | 64,900 lb (29,500 kg) |
| Table Size | 118" x 78.7" (3,000 mm x 2,000 mm) |
| X-Axis Travel | 120.5" (3,060 mm) |
| Y-Axis Travel | 84.6" (2,150 mm) |
| Y-axis Travel for -YM Configuration | 110.2" (2,800 mm) |
| Z-Axis Travel | 31.5" (800 mm) |
| Optional Z-axis Travel | 39.4" (1,000 mm), 47.2" (1,200 mm), 55.1" (1,400 mm) |
| Distance from Spindle Nose to Table Top | 7.9" to 39.4" (200 mm to 1,000 mm) |
| Distance Between Columns | 90.5" (2,300 mm) |
| Maximum Table Load | 26,450 lb (12,000 kg) |
| Spindle Drive Motor (30 min. / cont.) | 10,000 RPM: 40 HP (29.8 kW) / 35 HP (26 kW) |
| Spindle Drive Motor (30 min. / cont.) | 12,000 RPM: 40 HP (29.8 kW) / 35 HP (26 kW) |
| Spindle Drive Motor (30 min. / cont.) | 20,000 RPM: 50 HP (37 kW) / 35 HP (26 kW) |
| Spindle Output Torque | 10,000 RPM: 258 ft-lb (350 Nm) |
| Spindle Output Torque | 12,000 RPM: 305 ft-lb (414 Nm) |
| Spindle Output Torque | 20,000 RPM: 86 ft-lb (117 Nm) |
| Spindle Speed | Direct Drive (CAT50): 10,000 RPM |
| Spindle Speed | Integral Motor (CAT50): 12,000 RPM |
| Spindle Speed | Integral Motor (HSK63): 20,000 RPM |
| Rapid Feedrate (X axis) | 945 ipm (24 m/min) |
| Rapid Feedrate (Y axis) | 787 ipm (20 m/min) |
| Rapid Feedrate (Z axis) | 590 ipm (15 m/min) |
| Maximum Cutting Feedrate | 394 ipm (10 m/min) |
| Tool Storage Capacity | 32 Standard (60, 90, 120 Optional) |
| Standard Floor Space | 339" x 209" x 171" (8,610 mm x 5,300 mm x 4,350 mm) |
| Standard Net Weight | 64,900 lb (29,500 kg) |
| Table Size | 118" x 78.7" (3,000 mm x 2,000 mm) |
| X-Axis Travel | 120.5" (3,060 mm) |
| Y-Axis Travel | 84.6" (2,150 mm) |
| Y-axis Travel for -YM Configuration | 110.2" (2,800 mm) |
| Z-Axis Travel | 31.5" (800 mm) |
| Optional Z-axis Travel | 39.4" (1,000 mm), 47.2" (1,200 mm), 55.1" (1,400 mm) |
| Distance from Spindle Nose to Table Top | 7.9" to 39.4" (200 mm to 1,000 mm) |
| Distance Between Columns | 90.5" (2,300 mm) |
| Maximum Table Load | 26,450 lb (12,000 kg) |
| Spindle Drive Motor (30 min. / cont.) | 6,000 RPM: 35 HP (26 kW) / 30 HP (22 kW) |
| Spindle Drive Motor (30 min. / cont.) | 12,000 RPM: 40 HP (29.8 kW) / 35 HP (26 kW) |
| Spindle Output Torque | 6,000 RPM: 388 ft-lb (526 Nm) |
| Spindle Output Torque | 12,000 RPM: 305 ft-lb (414 Nm) |
| Spindle Speed | Gearbox (CAT50): 6,000 RPM |
| Spindle Speed | Integral Motor (CAT50): 12,000 RPM |
| Rapid Feedrate (X axis) | 945 ipm (24 m/min) |
| Rapid Feedrate (Y axis) | 787 ipm (20 m/min) |
| Rapid Feedrate (Z axis) | 590 ipm (15 m/min) |
| Maximum Cutting Feedrate | 394 ipm (10 m/min) |
| Tool Storage Capacity | 32 Standard (60, 90, 120 Optional) |
| Standard Floor Space | 339" x 209" x 171" (8,610 mm x 5,300 mm x 4,350 mm) |
| Standard Net Weight | 64,900 lb (29,500 kg) |
| Linear Position Accuracy | ± 0.0006" (0.015 mm) full travel |
| Linear Repeatability | ± 0.0001" (0.003 mm) |
| Coolant Tank Capacity | 132 gallon |
| Air Source | 90 psi @ 3.78 CFM |
| Total power Required | AC 220V ±10% (60 kVA) |
Specifications subject to change without notice.
Job Shop FANUC Oi Double Column Bridge Mill
X-Axis: 79.5" (2,020mm) to 118.8" (3,020mm)
Y-Axis: 59" (1,500mm) to 78.7" (2,000mm)
Z-Axis: 31.5" (800mm)
Spindle: #50 6,000 RPM Geared Head
Stealth VB215
(X): 2m (Y): 1.5m (Z): 0.8m
Stealth VB315
(X): 3m (Y): 1.5m (Z): 0.8m
Stealth VB320
(X): 3m (Y): 2m (Z): 0.8m
Stealth VB420
(X): 4m (Y): 2m (Z): 0.8m
FANUC 31i Double Column Bridge Mill
X-Axis: 83.5" (2,120mm) to 120.5" (3,060mm)
Y-Axis: 47.2" (1,200mm)
Z-Axis: 31.5" (800mm)
Spindle: #50 6K Geared or Highspeed Options
FANUC 31i Double Column Bridge Mill
X-Axis: 83.5" (2,120mm) to 159.8" (4,060mm)
Y-Axis: 63" (1,600mm) to 90.5" (2,300mm)
Z-Axis: 31.5" (800mm) to 39.3" (1000mm)
Spindle: Geared Head or Highspeed Options
Five-Face/Right Angle Head Capable
FANUC 31i Double Column Bridge Mill
X-Axis: 120.5" (3,060mm) to 253.8" (10,000mm)
Y-Axis: 84.6" (2,150mm) to 157.5" (4,000mm)
Z-Axis: 31.5" (800mm) to 55.1" (1400mm)
Spindle: Geared Head or Highspeed Options
Five-Face/Right Angle Head Capable
FANUC 31i Double Column Bridge Mill
X-Axis: 120.5" (3,060mm) to 253.8" (10,000mm)
Y-Axis: 84.6" (2,150mm) to 157.5" (4,000mm)
Z-Axis: 31.5" (800mm) to 55.1" (1400mm)
Spindle: Geared Head or Highspeed Options
Five-Face/Right Angle Head Capable
FANUC 31i Moving Gantry Mill
X-Axis: 197" (5,000mm) to 787.4" (20,000mm)
Y-Axis: 118.1" (3,000mm) to 236.2" (6,000mm)
Z-Axis: 31.5" (800mm) to 55.1" (1400mm)
Spindle: Geared Head or Highspeed Options
Five-Face/Right Angle Head Capable
FANUC 31i Moving Gantry Mill
X-Axis: 197" (5,000mm) to 787.4" (20,000mm)
Y-Axis: 118.1" (3,000mm) to 236.2" (6,000mm)
Z-Axis: 31.5" (800mm) to 55.1" (1400mm)
Spindle: Geared Head or Highspeed Options
Five-Face/Right Angle Head Capable
FANUC 31i Ø5" Bar Boring Mills
X-Axis: 78.7" (2,000mm) to 118.1" (3,000mm)
Y-Axis: 70.9" (1,800mm) to 82.6" (2,100mm)
Z-Axis: 51.2" (1,300mm) to 59.1" (1,500mm)
W-Axis: 19.7" (500mm) to 27.5" (700mm)
Up to 26,455 lb Weight Capacity
