Hydraulic expansion chuck, short heavy-duty version BT40 (ISO 7388-2) dia. 20 mm

Application

For high precision centric clamping of drilling, reaming and milling tools.

Execution

• Concentricity tolerance < 0.003 mm.
• With axial longitudinal adjustment.
• Reducing sleeves for flexible application.
• Coolant pressure up to 80 bar.
• Heat-resistant up to 50°C.

Advantage

• Vibration-damping effect reduces micro-cracks and improves the workpiece surface.
• Damping properties increase the service life of the tool and machine spindle.
• High torque transfer (dia. 20 = 400 Nm/dia. 32 = 730 Nm).
• All standard shanks can be clamped (dia. tolerance h6).

Notes

The previous standard JIS B 6339 MAS BT was superseded by ISO 7388-2.

Delivery

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