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AIRCRAFT Optimill MF 4-B

Distance between spindle and table: 470 mm
Total power requirement: 2.2 kW
Weight approx.: 1.2 t
Dimensions (LxWxH): Length 2400 mm, Width/Depth 2160 mm, Height 2300 mm, Weight 1200 kg
Spindle speed: 60 – 4200 rpm

- Heavy-duty design made from high-quality Meehanite cast iron
- High concentricity accuracy due to tapered roller bearings, measured at less than 0.01 mm in the quill
- Infinitely variable speed control
- Clockwise/anti-clockwise rotation for thread cutting
- X and Z axes with adjustable 55° dovetail guides
- Y axis with flat guideway
- Drilling-milling head tiltable ±45°
- Coolant system
- Clockwise and anti-clockwise rotation
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- Automatic quill feed, 3 steps, 0.04–0.15 mm/rev
- Motorized feed on X, Y, and Z axes
- Precision microfeed
- Milling spindle with precision bearings
- Mechanical spindle brake
- Drilling depth scale and stop
- Cross table with T-slots and coolant channel
- Central lubrication
- Height-adjustable safety shield with microswitch, protects against flying chips and parts for maximum operator safety
- Robust and large dimensioned cross table, precision machined with T-slots

MF 4-B:
- Cross table load capacity: 300 kg
- Large travel range: X / Y / Z axes 740 mm / 330 mm / 320 mm

Dimensions and weights
Length 2400 mm
Width/Depth 2160 mm
Height 2300 mm
Weight 1200 kg

Drilling and milling performance
Max. face mill diameter: 76 mm
Max. shank milling cutter diameter: 25 mm
Drilling capacity in steel (S235JR): 24 mm
Continuous drilling capacity in steel (S235JR): 20 mm

Electrical connection
Total connected load: 3 kW
Supply voltage: 400 V
Phase(s): 3 Ph
Current type: AC
Network frequency: 50 Hz

Horizontal milling table
Length: 254 mm
Width: 1370 mm
Max. vertical spindle to milling table distance: 405 mm
T-slot size: 16 mm
T-slot number: 3
T-slot spacing: 63 mm
Max. load capacity: 300 kg

Horizontal spindle
Overhang: 0 – 420 mm

Coolant system
Coolant pump(s) drive power: 90 W

Motor(s)
Vertical spindle normal operating power: 2.2 kW

Standards and approvals
Standard: DIN EN 55011
EMC category: C2

Travel
X axis manual: 820 mm
Y axis manual: 410 mm
Z axis manual: 400 mm
X axis automatic: 740 mm
Y axis automatic: 330 mm
Z axis automatic: 320 mm

Vertical spindle
Overhang: 0 – 420 mm
Spindle taper: ISO 40 DIN 2080
Speed range: 60 – 4200 rpm
Number of speed ranges: 2
Speed control: mechanical, stepless
Milling head swivel range X-Y plane: 90°
Milling head swivel range Z-X plane: 45°
Quill diameter: 86 mm
Quill stroke: 127 mm
Quill feed: 0.04/0.08/0.15 mm/rev
Milling head vertical travel Z axis: 470 mm
Package unit: 1

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