ATORN hydraulic expansion chuck short heavy-duty version BT40 dia. 20 mm
Brand: ATORN
Art.-no. 23733740
Manufacturer article no. 21045136
EAN 4050293438536
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The previous standard JIS B 6339 MAS BT was superseded by ISO 7388-2.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)
 | |
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 |
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