All units employ a patented guidance and sealing system without the need for sheet-metal covers or plastic wipers, while the monobloc design provides stability and accuracy.
There are two sizes of the four-sided tower, TS 100 and 125, and three of the three-sided tower, TS 80, 100 and 125 TriStar, the numbers representing the jaw width in millimetres. Stroke is up to 476 mm, while the maximum clamping force ranges from 20 to 40 kN.
Manual operation of the vices delivers reproducible clamping force, which may be low to avoid deforming delicate components, making the towers suitable for a variety of applications. Alternatively, the largest of each type can be equipped for hydraulic operation.
In the Vector versions of the towers, applicable to all but the smallest TriStar model, a fixed jaw can be arranged in the centre on each face or, if desired, two fixed jaws can be supplied instead. Workpiece weights above 15 kg can be accommodated.
There is also a version of the clamps featuring a so-called third-hand function, which has only one clamping spindle per face that moves both the upper and lower jaws simultaneously towards a fixed jaw positioned in the centre or to one side. This functionality avoids having to juggle two workpieces during the clamping process by retaining the lower workpiece first, allowing the second to be inserted and held with one hand before operating the handle again with the other to finish the clamping of both parts. The maximum workpiece weight using these towers is 15 kg.
An extensive range of accessories, including jaws and jaw inserts, is available, as are drawings and CAD models of the equipment, an advisory service and bespoke workholding arrangements.