Covering all the angles

Developed exclusively for Lang Centring vices, the Makro Grip incorporates a number of new innovations that guarantee a precise, robust and flexible workholding solution.

From a flexibility perspective, the new vice has jaws that are equipped with Lang's patented Vario-Tech pins which act as a location system that enables repeat clamping accuracies of 0.01mm.

Pins can be depressed or extended from the jaws to act as a precise location system for the clamping of non-uniform parts. When the single or batch of components is complete, the depressed pins can be blown back into position with a compressed airline. The benefit of the pin system for the end user is that no parallels or end stops are required and the repeat clamping precision is precise.

In addition to high positional accuracy, the Makro Grip incorporates double extension guidance of the vice jaws which ensures a centring accuracy of ±0.01mm. This flexibility and precision level is completely transferable to alternate machine tools through the Quick Point zero point clamping studs that sit on the underside of the vice.

The vice is available in two variants – the Makro Grip Precision Vice Vario 77 and the Vice Vario 125. The smaller Vice Vario 77 series is available with three base lengths of 130, 170 and 210mm that respectively provide a clamping width up to 55, 95 and 135mm. The Vario 77 has a maximum clamping torque of 70Nm with a maximum clamping force of 14,000N. The combination of secure clamping forces and a high repeat accuracy built into a compact clamping system makes the smaller of the two systems an ideal option for any machine shop aiming to reduce set-up times.

With 20mm diameter base pins that are spaced at a distance of 96mm, the larger Vice Vario 125 has been optimally designed for stability under more robust cutting conditions. Depending upon which of the four variants that are selected from the 125 series, the customer can be sure of the rigidity of the system that features a maximum clamping force of 20,000N with a heavy-duty construction from 12 to 18kg. Offered with a maximum clamping range of 100, 150, 200 and 250mm, the 125 has a base length from 210 to 360mm for optimised resistance to cutting forces.

Thame Workholding is supplying the new Lang vices with spare pins and O-rings to match the pins. Furthermore, the Aylesbury workholding specialist is providing an air pressure pistol that suitably fits the air inlets on the jaws for blowing the pins back into position.

Thame Workholding www.thame-eng.com