Crane wire rope is a load-bearing element used for lifting and grasping objects, usually formed by winding many strands of steel wire. It is one of the most fundamental and necessary components in industrial manufacturing, construction engineering, logistics and transportation, and other fields involving heavy object grasping and lifting. Understanding the composition, structure, and type of crane wire rope, as well as mastering its selection and use principles, is very important to ensure the safety and effectiveness of crane operation.

1. Composition of crane steel wire rope

The crane wire rope is usually wound with multiple strands of steel wire. Each strand is formed by winding a number of steel wires. The strands of these wires are wound to form a wire rope. The length of the crane wire rope can be customized according to the needs of the crane, and different numbers of strands and wire combinations can be used. Generally, more strands and steel wires mean higher tensile and load-bearing capacity.

2. Structure of crane wire rope

The crane wire rope consists of different types of jackets and cores. The core is the inner part of the wire rope, while the outer jacket is a protective layer that covers the wire rope. Some wire rope cores are made of fibrous materials, such as nylon or polyester, while others are made of steel wire.

Three main crane wire rope structures:

● Single twisted structure: This type of crane wire rope is formed by winding one strand in a single direction. It is simple and inexpensive, but has a low carrying capacity.

● Multi strand structure: A multi strand structure is formed by winding multiple similar strands around each other. This structure can improve the bearing capacity and durability of the steel wire rope.

Parallel winding structure: Parallel winding structure is formed by winding multiple strands side by side, and is usually used in situations where the quality of steel wire rope requires high requirements.

Type of crane wire rope

According to the material and structure of the outer jacket and core of the crane wire rope, they can be divided into several different categories:

● PVC steel wire rope: PVC steel wire rope has corrosion resistance and good protection, but the tensile force is not strong.

● Nylon steel wire rope: Nylon steel wire rope has strong tensile force and tear resistance, but its durability is not good enough.

Polyester steel wire rope: Polyester steel wire rope is more durable and has higher strength than nylon steel wire rope.

● Stainless steel wire rope: Stainless steel wire rope is made of stainless steel wire, so it has the characteristics of corrosion resistance and durability, and is usually used in high-temperature and humid environments.

4. Selection and use principles of crane steel wire rope

When selecting and using crane wire ropes, the following factors must be considered:

● The weight and strength to be borne;

● Length and diameter of steel wire rope;

● Structure and material of crane wire rope;

● Environmental factors, such as temperature and humidity;

● Inspection and maintenance requirements for steel wire ropes.

Crane wire ropes play an important role in operation, so proper selection and use principles should be followed to ensure their safety and effectiveness. When the service life of the crane wire rope expires or there is damage, it should be replaced or repaired immediately to ensure safe and smooth operation.