Seco Tools’ new power milling chucks offer maximised milling performance, with levels of holding power and transmittable torque rivalling those of hydraulic and shrinkfit holders. They deliver enhanced application flexibility and cost effectiveness, allowing workshops to reduce their tooling inventories.
The chucks deliver 5-μm runout accuracy at 3XD. Through direct clamping technology, one chuck can hold cylindrical plain 20 and 32 mm, 0.75 and 1.25in, and Weldon shank tools of 20 mm and 0.75in. With the use of reduction sleeves, a single chuck also can handle shank diameters in cylindrical plain, Weldon and Whistle Notch tools from 6 to 25mm and 0.25 to 1.00in. The chucks accommodate milling tools for roughing and finishing operations as well as drilling and tapping tools.
The chucks offer innovative advantages over standard collet chucks. A nut and needle-bearing design produces superior clamping power with minimum tightening force/torque requirements, compared with the steel-to-steel contact on collet chucks.
Optional coolant-stop screws enable the chucks to engage through-tool coolant, and they require no additional expense for ancillary equipment such as heating or hydraulic units.
The chucks are available for HSK-A, Seco-CaptoTM, DIN, BT and BT taper-face, and ANSI and ANSI taper face spindle interfaces. Each includes a sleeve extractor, stop screw (with DIN, BT and ANSI interfaces) and operating instructions.
1300 557 326