Torque Wrench For Precise ER Standard Collet Chuck Clamping

摘要

Haimer USA is introducing a torque wrench for clamping all standard ER collet chucks exactly and without shear force, which improves runout and limits damages to small collets due to excessive clamping efforts. Anybody who works with collets usually clamps the nuts with hook or jaw wrenches, which are based on a single-arm construction. First, the nut is tightened "according to feel" and finally the work is completed with a few strokes of a hammer on the wrench. With that there is not only the torque but also a shear force affecting the nut, collet, and tool resulting in poor runout and a damaged collet.