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ATORN hydraulic expansion chuck short heavy-duty version BT40 dia. 20 mm

Brand: ATORN

Art.-no. 23733740

Manufacturer article no. 21045136

EAN 4050293438536


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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
  • Heat-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)

Notes

The previous standard JIS B 6339 MAS BT was superseded by ISO 7388-2.

Delivery

1x short, heavy-duty BT40 hydraulic expansion chuck (ISO 7388-2)

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Brand

ATORN

Tool holding device

BT 40

Clamping diameter (d)

20 mm

Projecting length (A)

72.5 mm

Tapered diameter (d2)

49 mm

Outer diameter (D)

49 mm

Clamp in depth (l2)

51 mm

Max. adjustment travel (V)

10 mm

Form

JD/JF

Thread dimension (G)

M16 x 1

Coolant supply

Internal

Concentricity tolerance

0.003 mm

Balancing quality

G 2.5 at 25,000 rpm

Art.-no.
Cust. Mat. No.

Hazardous Material

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Technical information