Kiswire - Steel wire rope

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SINGLE STRAND ROPES are commonly called strands. ROUND STRANDED ROPES consist of a number of strands either laid around a fibre core or metallic strand or an independent wire rope core. They can be identified by the number to each strand. A rope with 6 strands, each having 9+9+1wires laid around a central fibre core is designated as; 6 x (9 + 9 + 1) + FC or more concisely 6 x 19 Seale + FC. If this same rope has an independent wire rope core, the designation will be: 6 x (9 + 9 + 1) + IWRC. The IWRC is a metallic rope having for example a construction designated by 7 x (6 + 1) or 7 x 7. Should the strands also contain a fibre core then the rope will be known for example as 6 x (12 + FC) + FC or 6 x 12 + 7FC. Lastly if the rope is formed of two or more layers of strands superimposed around a FC, then it will be known as: 12 x (6 + 1) + 6 x (6 + 1) + FC or 18 x 7 + FC. 3. TYPE OF LAY As already stated, round stranded ropes have both the strands and the wires in the strands laid helically. Should the lay of the outer wires in the strands be in the same direction or in the opposite direction to that of the strands in the rope, the result will be respectively a Lang’s Lay rope or an Ordinary ( Regular) Lay rope, having a Right Hand Lay or Left Hand Lay according to the lay of the strands. Right Hand and Left Hand lays are designated respectively Z and S. Ordinary Lay ropes are less likely to kink and untwist, and their Ordinary Lay ropes are less subject to failure from crushing and distortion. Because the longer length of exposed outer wires presents greater wearing surface, Long’s Lay ropes have increased resistance to abrasion. Greater care must be exercised when handling Lang’s Lay ropes, as they are more likely to kink and untwist than Ordinary Lay ropes. Ordinary Lay ropes are generally used because of their greater stability; however Lang’s Lay ropes are preferred for guided loads such as passenger and freight elevators because the wires have a longer contact with the sheave grooves and consequently less wear. Given equal construction and diameter, Lang’s Lay ropes are more flexible than the Ordinary Lay type. The wire ropes we manufacture are performed according to special methods which give them stability and eliminate internal stresses. Right Hand Regular Lay Rope Left Hand Regular Lay Rope Right Hand Lang’s Lay Rope Left Hand Lang’s Lay Rope 4. LUBRICATION Wire ropes are lubricated as a protection against oxidization and to reduce friction between wires and strands. Fiber cores are impregnated for preservation purposes. During the stranding and roping operations, all wires forming the strand and all strands forming the rope are lubricated. The type of lubrication varies according to the application for the rope and the type of plant for which it is intended. During the working life of the rope, lubrication should be carried out periodically with good quality products compatible with those used during manufacture and which we shall be pleased to indicate upon request. Lubricants used during manufacture shall be free from solvents, moisture, aromatic compounds, alkaline soaps and acidity both organic and inorganic. For protection of wire ropes against corrosion and frictional wear, Elephant Wire Ropes have various kinds of lubrications as below. 06 | Steel Wire Rope
LUBRICATION Type of Lubrication Lubrication Method Suitable on wire rope Appearance (Type of Grease) Note No-Lube No Lubrication Galv Strand Galv W/R Stainless A/C No Grease Dry Closing Stranding Core No Lubrication Min. possible application \Very tight wipe as possible Little heavier than on strand. Loose wipe Galv. A/C Brake Strand Galv. W/R Transparent (Dry) A rust inhibiting oil is used to prevent corrosion during transit and storage. Non-tacky to hand touch. A - 1 Closing Stranding Core No Lubrication Min. possible application tight wipe as possible Little heavier than on strand. Galv. Strand Galv. W/R Yellowish -Brown (Petro-Chem grease) For general application of Galvanized Wire Rope. A - 2 A - 3 Closing Stranding Core Closing Stranding Core No Lubrication Light application by dropping method. Internal lubrication is accomplished. Loose wipe Heavier than on Strand No wipe No Lubrication Applied during stranding by dropping method and the strand is lubricated again by running it through a bath of lubricant Heavy application. No wipe Galv. Strand Galv. W/R Stainless A/C Galv./Ungalv. Wire Rope Yellowish -Brown (Petro-Chem grease) Yellowish -Brown (Petro-Chem grease) For general application of Galvanized Wire Rope. Slightly oily to the touch. For general application of Ungalvanized Wire rope. Lightly tacky to hand touch. A - 4 Closing Stranding Applied during closing by droping method Applied during stranding by dropping method and the strand is lubricated again by running it through a bath of lubricant Galv./Ungalv. Wire Rope Yellowish -Brown (Petro-Chem grease) Wire rope valley is filled with lubrication. For special usage of wire rope against corrosion B Core Closing Stranding Heavy application No Lubrication Light application by dropping method. Internal lubrication is accomplished. Loose wipe Galv./Ungalv. Wire Rope Black (Asphaltum grease) For special usage and long term storage where maximum protection against corrosion C Core Closing Stranding Core Heavier than on Strand. Loose wipe No Lubrication Applied during stranding by dropping method and the strand is lubricated again by running it through a bath of lubricant Heavy application. No wipe Ungalv. Wire Rope Black (Asphaltum grease) Lubrication sets up to a medium hard consistancy. Ideal for oilfield, construction equipment and logging use. Lightly tacky to hand touch D Closing Stranding Heavy application No wipe after the “bath” application Applied during stranding by dropping method and the strand is lubricated again by running it through a bath of lubricant Ungalv. Wire Rope Black (Asphaltum grease) Wire rope valley is filled with lubrication. For special purpose lubrication of Ungalv. Wire rope where maximum protection against corrosion is desired. Core Heavy application. No wipe Non-Tacky C&D A special Non-Tacky grease is applied by the same method as in the above C and D type. Ungalv. Wire Rope Black (Solid Asphaltum grease) For special purpose lubrication to meet very hard consistancy under tropical climate. No wet. No drips. Dry to hand touch. Steel Wire Rope | 07
Page 3 and 4: ELEPHANT around the world As a lead
Page 5: GENERAL INFOMATION ON WIRE ROPE for
Page 9 and 10: 8. GRADES OF WIRE ROPE Elephant Bra
Page 11 and 12: 2. Clamshell Holding and closing li
Page 13 and 14: 11. Handling and Care of Wire Ropes
Page 16 and 17: For Mining Aerial Tramway. Stay. et
Page 18 and 19: For Crane, Hoist and General Engine
Page 20 and 21: For Crane, Hoist and General Engine
Page 22 and 23: Construction : 6Strands 19, 25, 26
Page 24 and 25: Construction : 6Strands 29, 31, 36,
Page 26 and 27: A Future That Is Open to the World

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