Ropes marking groups 1370 (140) – 1770 (180) are manufactured as standard, others as agreed. 5.Po mind covering the wire surface: no coverage; zinc-coated for: – osobozhestkih aggressive operating conditions (coolant) – Hard aggressive environments (R) – for medium corrosive environments (C). The surface density of zinc for the above groups (See chart on the above link) 6.Po purpose of war: gruzolyudskie (GL) – for lifting and transporting people and cargo, cargo (F) – for transporting cargo. 7. By Material core: – with an organic core (DC, from natural or synthetic material) – with a metallic core (MS.). Reference: Core provides internal support and cushion for the strands of the rope, and as a whole. It must withstand the radial pressure locks during loading of the rope, preventing its lateral deformation.
As organic cores are used cores from natural materials – hemp, synthetic and artificial materials – polypropylene. In the production of ropes are commonly used organic cores are impregnated with antiseptic and anti-corrosion compounds. Mass fraction of the impregnated composition is in the range of 25-50% by dry weight permanently core. To prevent corrosion, and organic core ropes are lubricated during manufacture of wire rope lubricants SC-50, KC-Y, Elaskon. 8.Po direction of lay of the rope elements: – Right Lay – Lay the left (A). ue. 9.Po combination direction of lay of the rope and its elements: – a cross-Lay – the direction of lay of strands in the rope opposite to the direction of lay of wires in the strands – Lay-sided (D) – the direction of lay of strands in the rope and the wires in the strands is the same.