Key Features:

The 6x19 + FC construction balances flexibility and strength, making it an ideal choice for many lifting applications.

(1) Flexibility: Compared to steel-core IWRC ropes, fiber-core FC ropes are more flexible, resulting in improved bending properties. This is particularly beneficial in applications where frequent bending occurs over pulleys and drums, such as cranes, and helps extend the rope's fatigue life.

(2) Oil Storage: The fiber core itself can be impregnated with oil, acting as a reservoir and continuously supplying lubricant to the interior of the rope, thereby reducing internal wear and delaying corrosion.

(3) Strength and Wear Resistance: The 6-strand construction with 19 wires per strand provides excellent tensile strength and abrasion resistance.

(4) Deformability (relatively): The disadvantage is that the fiber core's compressive strength is inferior to that of a steel core. Under high loads or when wound in multiple layers, the rope's diameter may decrease slightly (flattening) due to radial pressure, potentially leading to a slightly loose structure.

Applications:

Due to its excellent flexibility and lubricity, 6x19 + FC is widely used in the following low- to medium-load lifting applications:

(1) General-purpose lifting equipment: such as bridge cranes and gantry cranes (for general use).

(2) Electric hoists.

(3) Slings: Often used in wire rope slings for lashing and lifting loads.

(4) Towing and tensioning operations.

(5) Auxiliary lifting or securing applications.

Note: For applications with high lifting heights, high speeds, large tonnage, or requiring multiple layers of spooling (such as mine hoists or large container cranes), steel core ropes (6x19 + IWRC or 6x36 + IWRC) or anti-rotation ropes (such as 35x7) are generally preferred due to their higher compressive and rotational resistance.

Applications:
(1) Engineering crane
(2) Port crane
(3) Industrial crane
(4) Offshore crane
(5) Winch
(6) Drilling platform

When should crane wire ropes be scrapped?

When a wire rope meets any of the following conditions, it should be scrapped:
(1) The number of broken wires in one twist of the wire rope exceeds 10% of the total number of wires.
(2) The wear of the outer wire exceeds 40% of the original diameter. If it is less than 40%, it can be disassembled and scrapped according to the number of broken wires.
(3) The number of broken wires in a molten iron or hazardous goods lifting wire rope reaches half the number of broken wires that should be scrapped for general lifting equipment, including the reduction of wire surface corrosion.
(4) The wire rope diameter is reduced by 7%.
(5) The entire strand of the wire rope is broken or the fiber core is exposed, and part of the outer wire is extended in a cage-like or hardened state.

Key points when replacing wire ropes for lifting machinery:
(1) When replacing old wire ropes, qualified original design models, diameters, nominal tensile strength and wire ropes must be used. If only the same diameter is met and other requirements are lower than the original specifications, the service life of the wire rope will inevitably be affected.
(2) It is forbidden to use wire ropes without a certificate of conformity. If the wire rope diameter does not conform to the original design, the total breaking force must be equal to the original design. Then the diameter difference should not exceed: 1mm when the original diameter is less than 20mm and 1.5mm when the original diameter exceeds 20mm. If it is too thicker than the original, it will cause the wire rope to rub against each other when it is wound on the drum, increasing wear.

(3) When replacing or winding the wire rope, be careful not to let the wire rope become knotted. Practice has shown that knotted wire ropes are most likely to wear and break during use. It is forbidden to connect two wire ropes in the lifting mechanism.

You can learn about our advantages. Wire rope products have various excellent properties and are suitable for a range of applications such as heavy lifting and supporting suspension bridges. If you need wire rope solutions, please feel free to contact us.