Bubut-konvensional-elektronik

KNUTH DL 425/4000 S

Turning length 4000 mm
Swing diameter 850 mm
Swing diameter in gap 1150 mm
Swing over cross slide 520 mm
Spindle speed 5.0 - 630 rpm
Quill: MT6
Quill travel 250 mm
Spindle bore 100 mm
Max. workpiece weight 4000 kg
Bed width 600 mm
Travel - X axis 500 mm
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Travel - Z axis 3700 mm
Rapid traverse X 1800 mm/min
Rapid traverse Z 3640 mm/min
Feeds X: 0.04 - 4.8 mm/min
Feeds Z: 0.08 - 9.6 mm/min
Feeds Z1: 0.02 - 2.4 mm/min
Motor power 20.0 kW
Machine weight approx. 6800 kg
Dimensions 6150 x 1500 x 1500 mm
good / well-maintained condition (!!)
Original purchase price approx. 65,000 Euros
Special price on request

Description:
- Especially heavy, strong-ribbed, and wide machine bed
- With rigid, one-piece monoblock construction
- Induction-hardened and ground guideways
- Guarantee long-term accuracy and minimal wear
- Massive headstock
- With high-precision, taper roller bearing main spindle
and 100 mm spindle bore
- Outstanding smooth operation at maximum spindle speed
- Joystick control for X and Z feed directly on the carriage
- Manually shifted 4-step intermediate gearbox
- Powerful main spindle motor enables precise speed adjustment
and high torque for heavy-duty machining
- Rapid traverse for X and Z axes allows quick carriage positioning
and reduces non-productive times
- Adjustable overload clutch in the apron protects the feed mechanism
from damage and failures
- Central, ergonomic control for feeds and thread pitches
- The feed gearbox offers a wide range of
diametral, imperial, module, and metric threads
- Carriage and compound rest are designed for high cutting forces
- Increased machining accuracy
- User-friendly features

Scope of delivery:
- SINO position indicator
- TOS 3-jaw chuck, Ø 400 mm
- 4-jaw face plate chuck, Ø 800 mm
- 4-way tool post
- Fixed steady rest 40-350 mm
- Travelling steady rest 30-120 mm
- Fixed centre
- Reducing sleeves
- Chuck guard
- Coolant system
- Machine leveling feet
- Work lamp
- Operating tools
- Operating manual

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