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ATORN high-performance hydraulic expansion chuck SK40 dia. 20 mm A=64.5 mm

ATORN high-performance hydraulic expansion chuck SK40 dia. 20 mm A=64.5 mm

ATORN high-performance hydraulic expansion chuck SK40 dia. 20 mm A=64.5 mm
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Item no: 1021576 102 

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Available in 5-7 working days.

Application
For high-precision and centric clamping of milling, drilling and reaming tools – particularly with milling and heavy-duty machining during rough machining.

Execution
  • With axial longitudinal adjustment
  • Reducing sleeves for flexible application
  • Very high concentricity (< 3 µm)
  • Coolant pressure up to 80 bar
  • Temperature-resistant up to 100 °C

Advantage
  • Robust version ideal for HPC+HSC machining
  • Damping properties to increase service life of tool and machine spindle
  • Vibration-damping effect reduces micro-cracks and improves the workpiece surface
  • All standard shanks can be clamped (dia. tolerance h6)
  • Very high torque transfer (dia. 20 = 650 Nm/dia. 32 = 890 Nm)

Delivery
1x SK40 or SK50 hydraulic expansion chuck (ISO 7388-1)

Notes
The previous standard DIN 69871-1 was replaced by ISO 7388-1.

Brand: ATORN
Tool holding device: SK 40
Construction length: Short-heavy
Clamping diameter (d): 20 mm
Projecting length (A): 64,5 mm
Form: AD/AF
Outer diameter (D): 49 mm
Tapered diameter (d2): 38 mm
Diameter (d3): 49 mm
Clearance length to collar (l1): 41 mm
Clamp in depth (l2): 51 mm
Max. adjustment travel (max. V): 10 mm
Coolant supply: Internal
Suitable for thread (G): M16 x 1
Width across flats: 8 mm
Balancing quality: G 2.5 at 25,000 rpm
Concentricity tolerance: 0,003 mm

ATORN-No.: 21043003

EAN no.: 4050293359152

Product Datasheet
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