1st MTA offers hydraulic versions of OK-Vise clamps

OK-Vise of Finland has unveiled hydraulically-actuated variants of its low-profile clamping products. Available in the UK from 1st MTA, OK-Vise clamps operate on the principle that when tightened they expand, simultaneously pressing the workpieces against the guide to prevent any possibility of play.

Compact in size yet exerting a clamping force up to 150 kN, the clamps have been developed to fit between workpieces and take little space on the fastening base, be it a T-slot table, baseplate, serrated rail or other platform.

Fastening entails tightening a single bolt located in the centre of each clamp. This is typically performed manually, although the procedure may be automated, using a hydraulic cylinder that sits under the fixture on a 3-axis machining centre table, or behind the clamping faces of a tombstone on a 4-/5-axis machine.