Crane Accessories ——Wire Rope for Sale

What is a Crane Wire Rope?

Crane wire rope, often referred to simply as wire rope, is a sturdy and flexible cable composed of multiple steel wires twisted together to form a helix. This construction provides the rope with exceptional strength and durability, making it ideal for lifting and hoisting heavy loads.

In 1834, the European Olubert invented the world's first wire rope (glossy wire rope). Domestic is established in 1939, Tianjin City, the first wire rope factory put into production.

Steel wire rope in various industrialized countries are standard products, can be used according to the need to choose its diameter, the number of rope strands, the number of wires per strand, tensile strength and adequate safety factor.

Components of Crane Wire Rope:

1. Wire Strands: These are individual steel wires that make up the rope. The number of strands can vary, with 6x19 and 6x37 being common configurations. The first number represents the number of wire strands in the core, while the second represents the number of wire strands in the outer layer.
2. Core: The core is the central part of the wire rope, around which the wire strands are twisted. There are two main types of cores: fiber cores (FC) and independent wire rope cores (IWRC). Fiber cores consist of natural or synthetic materials, while IWRC cores are made of steel wires.
3. Lay: The lay of a wire rope refers to the direction in which the wires and strands are twisted. There are two main types of lay: regular lay and lang lay. Regular lay means the wires are twisted in the opposite direction to the strands, while lang lay means they are twisted in the same direction.

Wire Rope Production Process

1.Drawing

Ordinary round steel, let it through the hole than its diameter is a little smaller than the forced pull through, the diameter of the round steel will become smaller, the length will be elongated, and constantly repeat this process, then the round steel will be further reduced to form the rope-making steel wire (general diameter range of 0.2mm-3.1mm), and then after tempering after the second pulling. The strength of the wire rope is pulled out of the wire drawing. The higher the general strength, the stronger the pull, but wear resistance and flexibility is relatively weak. Therefore, the wire rope is not the higher the strength the better.

2. Twisting

Twist the wire into strands according to certain rules.

3.Oil coating and galvanizing

Coating with oil to prevent rust, galvanizing, aluminizing, etc.

4.Coiling

Rolling the rope strands into coils for the next step.

5.Combining

The process of producing wire rope by arranging the strands around the core centerline in a spiral line on the rope closing machine.

Wire Rope Winding Method

The winding direction of the wire rope on the reel depends on the direction of the left and right twisting direction of the wire rope winding on the reel, according to the direction that makes the wire rope twisted tightly. The cross-twisted wire rope is not easy to loosen because of its own small rotation, the structure is not easy to loosen and it can be adapted to the left and right rotating reels.

Common Faults and Causes of Wire Rope

Wire Rope Classification

1.By twisting method (structure):

2. According to the diameter:

3. According to the use of points:

4. According to the surface state:

5. According to the twisting characteristics:

6. According to the core:

Rope core function: support the outer strand pressure, keep the rope type intact, increase rope elasticity and toughness, reduce friction, improve life.

Wire Rope Maintenance and Care

1. Wire rope in operation should be smooth speed, and will not be overloaded operation, to avoid the occurrence of shock load.
2. The wire rope has to spit enough grease when manufacturing, but after running, the grease will reduce, and the surface of the wire rope will be stained with harmful substances, which will lead to the friction of the wire rope and pulley and the rest of the wire rope, so it should be cleaned and refueled.
3. The wire rope should be inspected and records should be kept, the regular inspection content is the wear and tear of the wire rope, wire breakage, corrosion, and the wear and tear of the pulley groove, hoisting ring, hook, and other fragile parts, especially the wire rope breakage and fixation, fixed pulley set, the outer and inner wire rope breakage of the reel.