BT40

Three automatic BT40 follower systems

The BT40 taper automatic chuck is a precision tool designed for holding workpieces in CNC machines with quick-change capability. This chuck is made from alloy steel hardened to approximately 58 HRC and features a jaw opening diameter ranging from 80 to 160 millimeters. Concentricity accuracy in these models is typically less than 0.02 millimeters, enabling precise turning operations. Compatible with the BT40 taper system, the chuck weighs between 3 to 5 kilograms and can withstand torque up to 500 newton-meters. Its locking mechanism is usually hydraulic or pneumatic and supports rotational speeds up to 6000 RPM.

The hydraulic system operating pressure for the BT40 taper automatic chuck ranges from 3 to 5 megapascals. The adjustable locking torque for heavy industrial applications ranges between 350 and 550 newton-meters. The jaws are made of hardened steel with a wear-resistant coating to ensure long durability in industrial environments. This chuck is manufactured according to DIN 69871 and ISO 12164 standards and is widely used in CNC machining centers to enhance precision and operational speed. Quick jaw change and automatic position adjustment features significantly improve production efficiency.