The OMEC SBM1200 manual clamp has been designed and built for assembling small boxes and in particular: the series of the wine boxes, toolboxes, cigar boxes and gift boxes. The size of the box is adjusted manually by the operator. The machine has a hydraulic power plant which drives three cylinders to press the four sides of the box previously inserted in the relevant clamps. Controls are located on a built-in control panel. The SBM1200 model is controlled by a programmable controller (PLC) which is entrusted with the working cycle control.