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January 6, 2009 -
Clamping all standard ER collet chucks, exactly and without shear force, is accomplished via 2-arm construction, which avoids any damage by pulling and pushing simultaneously. This, in turn, improves runout and limits damages to small collets due to excessive clamping efforts. Users can tighten locknut exactly and with correct torque via dial gauge, which reads tool diameters from 1-4 mm. Scale does not show every diameter, but only that of collet used: ER 16, ER 20, ER 25 or ER 32.
Haimer Introduces New Torque Wrench for Precise ER Standard Collet Chuck Clamping
VILLA PARK, IL - 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.
Haimer's new torque wrench with a two-arm construction avoids any shear force damage by pulling and pushing at the same time. Additionally the torque wrench provides the possibility to tighten the locknut exactly and with the correct torque via a dial gauge.
The dial gauge's scale can read tool diameters from 1 to 4 mm. When the needle deflection reaches the desired position, the collet offers the optimal clamping forces. If an operator turns further, the collet would be squeezed and with that damaged forever. With small diameters, this tends to happen very quickly without a suitable torque wrench.
With larger cutting tools and collets the danger of squeezing does not play as important of a role. Therefore the scale does not show every diameter, but only the size of the collet used (ER 16, ER 20, ER 25 or ER 32).
The torque wrench can be used for all standard ER collet chucks as well as Haimer`s new, high-precision Power Series collet chucks. There are inserts for the respective locknuts that can be exchanged easily.
The Haimer product line includes set-screw end-mill holders, face mill arbors, ER collet chucks, high-precision collet and shrink-fit chucks in the industry's most extensive taper and size offerings. The company also offers the latest technology in shrink-fit systems, balancing machines and three-dimensional edge finding sensor systems. For more information, go to www.haimer-usa.com. Company Information: Name: Haimer-USA Address: 134 E. Hill St. City: Villa Park State: IL ZIP: 60181 Country: USA Phone: 630-833-1500 FAX: 630-833-1507 http://www.haimer-usa.com/usa/
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