Hoffmann Group USA announced a new centering vice called the GARANT Xtric. The vice is equipped with a new chuck jaw quick-change system, which enables easy, tool-free changeover. A click mechanism gives the vice an interchange accuracy in the micrometer range. The top jaws, which can be rotated by 180 degrees, allow for a large clamping range and high variability when fixing components, and clamping using multiple GARANT Xtrics is not a problem, the center can be adjusted precisely in order to achieve top precision.
“The new GARANT Xtric is suitable for clamping both blanks and finished parts,” said Charlie Slagle, president and CEO of Hoffmann Group USA. “In addition, pre-stamping components is not required. Therefore, a time savings of 50% is possible when setting up.”
With the new GARANT Xtric, the top jaws can be replaced or rotated by 180 degrees by hand, without using any tools. For this purpose, the top jaws are inserted into a dovetail and pushed down via two spring plates until they engage. There is no need to remove and re-thread the spindle nut. With this unique “click and clamp” system, the GARANT Xtric can significantly contribute to a reduction in set-up costs.
With its rotating top jaws, the GARANT Xtric provides a particularly large clamping range of 0 to 144 millimetres in the case of the model 80S, and 0 to 194 millimetres in the case of the model 80M. An additional model with a jaw width of 125 millimetres will be launched soon. All models are alternatively available with pivot jaws.
If a clamping force of 25 kN is applied directly on the component, the vice will also be suitable for clamping unfinished parts. If a gripper jaw with GARANT tooth form is used, pre-stamping can even be eliminated. For customers that already use the “Lang” system, there are suitable top jaws with the “Lang system” tooth form. The top jaws are available both uncoated and coated.
In order to clamp larger workpieces using multiple centering vices, the center can be adjusted precisely – to the micrometre. And if required, can be shifted by up to 0.5 millimetres on each side (by one millimetre in total). To do this, simply release the screw on the side, reset the center using pin wrenches and then retighten the screw on the side.
Longitudinal grooves for precise alignment on the machine table, bores for the “Lang” positioning system and adapter plates for clamping on the GARANT Zero Clamp zero-point system round off the range. Adaptation to other zero-point clamping systems is also possible.
Link: Hoffmann Group