A wire rope is an assembly of several strands of wire twisted helically in one or more layers around a core. The core can be a fiber core (FC), a wire strand core or an independent wire rope core (IWRC).
Numbers are used to describe wire rope construction. A 6 x 19 wire rope means it has 6 strands and each strand is made of 19 wires. The letters which come after numbers indicate how outside layer is constructed. For example FW (filler wire) means the outer layer is made of same sized strands; or WS (Warrington Seale) means the outer layer is a combination of large and small strands.
Wire ropes are widely used in mining, drilling, oil and gas industry, marine and constructions for lifting loads or transmission of mechanical power. Choosing the proper wire rope for a specific job is based on many factors such as application, required strength and environment.
Non-rotating wire rope is constructed of many layers of strands to minimize the tendency to spin and rotate under load.
The outer layer in non-rotating wire rope is twisted in the reverse direction of inner layers; in this way it counteracts torsional forces generated from many layers of strands.
The wire rope with more layers of strands is more resistant to rotation.
A guy wire or stay wire provides support to free-standing structures like poles, radio towers and antennas and keeps them from falling or sagging.
The 1×19 wire rope is a very popular construction as a guy wire. It is strong and has a very good breaking load and low stretch which make it favorite for small diameter applications.
Non-rotating wire rope is typically constructed of many layers of strands to minimize the tendency to spin and rotate under load.
The outer layer in non-rotating wire rope is twisted in the reverse direction of inner layers; in this way it counteracts torsional forces generated from many layers of strands.
The wire rope with more layers of strands is more resistant to rotation.
This 4-strand flat non-rotating wire rope is usually used in tower cranes, ports and shipping equipment.
The 4×31 WS+PPC wire rope is commonly used for suspended platforms which are height access systems. Suspended platforms (or suspended scaffolding) allow secure working on the whole building surface and are used for building maintenance (like cleaning windows), at construction sites or in industrial environments. In addition, snipers and athletes can use the wire rope for climbing.
The drill line is a wire rope which facilitates the lifting and lowering of the drill string out of and into the bore hole. Such application requires a stable wire rope which is resistant to abrasion, heat, crush and fatigue.
The drill line is a wire rope which facilitates the lifting and lowering of the drill string out of and into the bore hole. Such application requires a stable wire rope which is resistant to abrasion, heat, crush and fatigue.
An overspeed governor is a safety device that comes into operation when the lift car exceeds its permitted speed.
In case of falling or rising too fast, when the lift car exceeds its permitted speed, the overspeed governor trips and triggers the safety gear on the lift car via the governor rope. This activates the brakes and stops the elevator from falling or rising too quickly. Since this safety system relies on the governor rope, being reliable and in great working condition is very important when choosing the rope.
Wire ropes are strong, flexible and long-lasting, so they can be the best choice for governor ropes.
The 6×12+7FC wire rope has seven cores of hemp. It is very soft with low tensile strength and high flexibility which make it ideal as governor wire rope in elevators.
Today the main material used for wire ropes is steel. The steel wires with very high strength used for constructing wire rope allow supporting large tensile forces.
The 6×19 S+IWRC wire rope has superb breaking load characteristics. Larger outer wires provide more resistance to wear and abrasion in comparison to other 6×19 constructions.
The drill line is a wire rope which facilitates the lifting and lowering of the drill string out of and into the bore hole. Such application requires a stable wire rope which is resistant to abrasion, heat, crush and fatigue.
Today the main material used for wire ropes is steel. The steel wires with very high strength used for constructing wire rope allow supporting large tensile forces.
The drill line is a wire rope which facilitates the lifting and lowering of the drill string out of and into the bore hole. Such application requires a stable wire rope which is resistant to abrasion, heat, crush and fatigue.
The 6×12+7FC wire rope has seven cores of hemp. The hemp cores provide extreme flexibility but low tensile strength which make it ideal for using as governor wire rope in elevators.
Today the main material used for wire ropes is steel. The steel wires with very high strength used for constructing wire rope allow supporting large tensile forces.
IWRC (Independent Wire Rope Core) wire ropes are generally more crush resistant but less flexible than FC (Fiber Core) wire ropes.
As the elevator wire ropes are regularly lifting heavy loads, (with both weight of the elevator car and the weight of passengers), it is important for it to be strong and reliable.
Choosing the right wire rope depends on a number of factors, particularly the load requirements and speed of the elevator car.
As the elevator wire ropes are regularly lifting heavy loads, (with both weight of the elevator car and the weight of passengers), it is important for it to be strong and reliable.
Choosing the right wire rope depends on a number of factors, particularly the load requirements and speed of the elevator car.
8×36 Warrington seale construction is a good choice for overhead cranes. The 8-strand construction provides greater strength, increased flexibility and smoother area in comparison to 6-strand wire ropes.
Coated wire ropes are great where both abrasion protection and flexibility are needed. They are mostly used for fitness machines in the gym. Coated wire ropes are not stainless and cannot be used instead of galvanized or steel wire ropes.
An overspeed governor is a safety device that comes into operation when the lift car exceeds its permitted speed.
In case of falling or rising too fast, when the lift car exceeds its permitted speed, the overspeed governor trips and triggers the safety gear on the lift car via the governor rope. This activates the brakes and stops the elevator from falling or rising too quickly. Since this safety system relies on the governor rope, being reliable and in great working condition is very important when choosing the rope.
Wire ropes are strong, flexible and long-lasting, so they can be the best choice for governor ropes.