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When machining cast parts, dust, chips and dirt can impair the function of the clamping device. To address this challenge, Hainbuch Welge Corporation has developed the TOPlus, which features a hexagonal core made of concrete polymer. This new clamping device is lighter than steel chucks and also has a lower mass inertia torque, which, according to the company, is advantageous during high acceleration.
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As opposed to the conventional cone shape, the device has pyramid shape to promote that all surfaces fit tightly, leaving no gaps. Because of reduced surface pressure and the full-surface contact of the clamping segments, the clamping force is 25 percent higher than the company’s Spanntop chuck. In addition, the span range is considerably larger.
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Potential advantages (as cited by the company) are vibration dampening because of the concrete polymer constructions; increased process reliability and low surface pressure, making the device suitable for continuous processing of large quantities; and precise centering.
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