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Information on characteristics and use of steel wire ropes
|Galvanized steel ropes 72 wires "commercial"||Galvanized steel ropes 42 wires||Stainless steel ropes 133 wires Aisi 316|
|Galvanized steel ropes 19 wires "spiral"||Polished steel ropes 133 wires "not rotating"||Polished steel ropes 222 wires|
(Steel cable for general purposes not binding. Rope not suitable for traction and lifting)
(Steel cable for small winches and lifting mechanisms shutters. Cable very flexible and resistant)
(Stainless steel cable for demanding outdoor areas requiring a long-term especially in highly corrosive environments. Rope very flexible)
(Steel cable for support power lines, fences outside where high durability is required. Cable type spiral)
(Steel cable for lifting with tower cranes and hoists for the building. Rope not rotating type)
(Steel cable for lifting and pulling in cranes, hoists, elevators, excavators. Cable very sturdy and durable)
(Steel cable for traction and lifting with cranes, excavators, hoists, overhead cranes. Very flexible rope with a breaking strength very high)
General rules for the selection and use of wire ropes
The ropes also commonly called steel cables or wire ropes are divided into various categories according to the characteristics tabular different construction according to the use to which they are intended. The various tables of construction are the real "identity card" of the rope and clearly indicate the composition, the number of wires, the unitary resistance of the wires which form the cable and the total breaking load of the rope. When talking about the Declaration of Conformity or Certification of the ropes will certify that the steel cable in question is built with the characteristics specified in the CES membership. Therefore ropes and cables are divided according to their intended use, and in the case of use of cranes, hoists, elevators, hoists, winches, hoists, either the manufacturer of such equipment makes it clear in the owner's manual and the maintenance unique type of rope to use when replacing the rope original possibly deteriorated. In the case of other particular uses of steel cables which cable cars, fences, ropes to support power lines, cables rockfall protection, steel ropes for support to fireplaces and chimneys, steel cables for use in corrosive environments, according ANPA the long experience in the field provides the appropriate technical support for the appropriate choice of the rope. Do not hesitate to contact us for any information about ...
Information from our sales office
Since early 1951 ANPA produces and sells wire ropes and cables in galvanized steel, stainless steel and polished. The materials we use to manufacture the metal cables are certified and top quality, therefore our cables meet all quality standards and are certified with a declaration of compliance with current safety regulations. This declaration is included in the purchase from us on request of the buyer at no charge on the sale price. Our stores are always well stocked with all types and diameters of rope that we produce, so the shipment (or the possible withdrawal in the area) is always immediately upon receipt of payment. The standard package sales of wire rope is the skein of 100 m., but for special needs such tesature power lines, cable cars and other special purposes you can also produce coils or reels of any length greater than 100 meters. Prices are inclusive of VAT and any bill can be requested by the customer only at the time of the order form indicating their VAT. Transportation will be provided by the courier in about 2 business days with a reduced cost from as little as Euro 5.50 per shipment regardless of the number of items ordered. Buying from ANPA means acquiring ropes and steel cables certificates of high quality at a purchase price and transport very limited ..... Anpa is present on Facebook with its own personal page. Sign clicking Anpa Facebook page
Use and maintenance of steel wire ropes
The implementation of the rope begins with the carrying out of the cable from a skein or by a coil and must be performed so as not to cause twisting or detorsioni dangerous for the integrity of the rope. With twisting the strands forming the rope tend to clamp and compress the central core, while with the detorsioni the strands become loose and tend to move away and detach from the soul compromising in both cases the perfect round cross section of the rope and its with integrity and reduce its durability. The cut of the wire ropes can be done with a suitable shear or shearing blades, with a flexible cutting blade or with a cutting torch blowtorch. Before performing the cutting it is advisable to wash future Heads with annealed iron in the opposite direction to that of the winding of the rope so that if the rope tends to unfold ligation tends to wind. When the cable is to be mounted on a smooth drum the winding direction must be equal to that which had on the reel. As regards the grooved drums, the direction of winding is a function of the type of the rope used, and is always strictly necessary to make use of the information provided by the manufacturer of the mechanical means on which the rope itself is employed. It should be recalled that the wire ropes require a short break-in period and so need not be subjected to abrupt tearing, operating speed and excessive loads so that the elements that compose it can adapt and settle to future working conditions. A very important chapter on the use of steel cables is that of lubrication. The ropes zincate not require special lubricants against oxidation, however, however, given that the single yarn adheres to the other, the movements of the rope generate the sliding between the wires that produce lesions by friction, hence it is always very useful to keep lubricated the rope. The lubricant for the ropes not contain acid or alkaline substances, it must be fluid, present a good adhesiveness & agrave; and capacity & agrave; penetration between the various strands of the rope and should not be emulsifiable with water. Before periodic lubrication & egrave; necessary to clean the cable from encrustations that are formed in the interstices between the strands, impregnating the cable with oil and with the use of a brush. Naturally, the lubrication of the ropes & egrave; very important for the lifting ropes and traction which run in pulleys, pulleys and rotating drums. Since the implementation the rope undergoes a process of degradation regular, initially for bedding, then gradually and finally to process then accelerated to reach the point of rupture. The degradation but can & ograve; essre & nbsp; pi & ugrave; abrupt and accelerated to assembly errors and maneuvering of the rope. The state of wear of a rope is judged on the basis of detectable elements on sight. The visual examination can be inferred if the wire breakage is due to fatigue, overload or accidental wear. In the first case the surface of the wires is smooth without wear and the section is the initial one, in the second case there is a decrease of the diameter of the wires due to shrinkage, in the third case there is a decrease of the section of the wires only in the outer part which indicates the excessive rubbing which has undergone the rope coming in contact with the drums, pulleys and sheaves. The decision for the replacement of the rope is globally evaluated in function of the number of broken wires and their position, against wear and corrosion degree that the cable may present. The replacement of the rope becomes necessary when the total number of outer wires broken in a length equal to six times the cable diameter is greater than the 10% the wires forming the outer strands for ropes crusades left and right. The cable must also be replaced when the diameter reduction reaches the 10% and you notice any dents, kinks, cuts irregular diameter, slots, nodes torsion and other serious damage as a complete rupture of a strand. Therefore it is a good idea to periodically inspect the ropes at regular intervals to check the above parameters of wear.