BELOW THE HOOK | PRODUCT REPORT
after they have been welded together to form, for example, a vertical box-shape – and for profiles. Vertical clamps, Camlok’s and others, need some mechanism to close the jaws. On Camlock’s 92-series devices the jaw is opened and closed with a manual locking lever, except for its 92-500, the smallest in their range, with a 50-500kg working load limit, which uses a positive spring loaded cam. The safety lock spring loads the cam jaw, preventing the clamp from opening even when there is no load on the jaw. Jaw openings go up to 32mm, which would be the limiting thickness of the sheet you can lift with them. Camlok’s CZ series vertical plate clamps
are heavier-duty than their 92-series, with WLL up to 30,000kg. They again use a locking lever and spring-loaded safety lock. When lifting vertically, the teeth on such a clamp need to dig in to the steel plate, to a certain extent at least, to give a grip; smooth-surface friction will not generally be enough for safety. For the teeth to dig in, the steel must be slightly malleable. For that reason it is important to note that, for both Camlok ranges, the plate surface of the material being clamped must have a
Camlok clamps come in many forms.
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