<\/div><\/div>[\/vc_column_inner][\/vc_row_inner][vc_row_inner][vc_column_inner width=”1\/2″][vc_gallery type=”flexslider_slide” interval=”0″ images=”6413,6414″ img_size=”large”][vc_single_image image=”4015″ img_size=”large”][\/vc_column_inner][vc_column_inner width=”1\/2″][vc_column_text]High-frequency electric vibrators are used in construction sites and prefabricated companies to obtain high-quality products (open concrete) with excellent aesthetic results and weather resistance. Vibration is transmitted to the concrete indirectly through the formwork or formwork. \nExternal ones, like internal vibrators, are based on the principle of vibration produced by the rotation of an eccentric mass, initiated by a three-phase electric motor. The OLI series of external electric vibrators includes fixed frequency models, 3,000 and 6,000 vpm, and variable frequency models from 0 to 6,000 vpm. \nLow speed vibration is mostly used in high density and unreacted concrete; because they allow rapid displacement of aggregates. \nHigh velocity vibration (6,000 vmp) is recommended for low density concrete and applications where high surface quality is required. The variable frequency allows you to find the right vibration rate according to the concrete density to be processed. They are obviously more flexible than before. \nOLI external electric vibrators are characterized by high operating efficiency and easy installation. Specially designed fastening devices (quick release clamps) reduce the time required for installation and repositioning. \nThis vibration system is recommended when: \u2022 High construction elements and narrow walls (partitions, columns, beams) will be compressed and it is difficult to vibrate with other systems. \u2022 The reinforcement density inside the body is high.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_single_image image=”3996″ img_size=”large” alignment=”center” onclick=”link_image”][vc_custom_heading text=”Technical Data” use_theme_fonts=”yes”][vc_single_image image=”3992″ img_size=”large” alignment=”center” onclick=”link_image”][vc_toggle title=”Video” el_id=”1514219102466-71ea4d31-99ce”]