Kennametal has expanded its range of turret-adapted clamping units (TACU), which are now ER-ready driven modules, and introduced a line of solid ER collets that are threaded to accept screw-on milling cutters.

Ronald West, manager – tooling systems, says: “Together, the newly developed TACU ER units and solid ER collets are a great marriage of technology. Available in sizes ER25 through ER40, with thread sizes ranging from M8 to M16, this innovation provides machining centre-like capabilities to live-tool lathes. These new products offer the flexibility to use standard ER collets with solid end mills, or the new solid ER collets together with screw-on indexable milling cutters.”
Fully sealed for through-the-tool coolant, there is a 1 mm stand-off for additional clearance on larger end mills with a precision-ground locating boss for minimal runout. The unit is of compact design, reducing the chance of interference on smaller machines. Compared with a standard spring-style ER collet, the system is designed to be very rigid, allowing users to take heavier cuts.
TACU can be used on seven leading brands of CNC lathes, both VDI and bolt-mounted turrets, with a variety of static and driven blocks. TACUs are equipped for internal and external coolant, with up to 12,000 rpm possible on specified driven tools.
For further information www.kennametal.com