The core purpose of a high-speed stranding machine is to twist multiple single wires (such as metal wires, insulated wires, optical fibers, etc.) into strands or cores according to specific rules. Its "high-speed" characteristics (stranding speed is usually ≥ 3000r/min) are suitable for industrial large-scale production needs and are widely used in fields such as wire and cable, communication, electronics, special equipment, etc. The specific uses can be subdivided by industry as follows:

1. Wire and cable industry: improving the comprehensive performance of conductors and cables
This is the main application area of high-speed stranding machines, with the core goal of optimizing the mechanical and electrical properties of conductors through stranding:
Twisting of power cable conductors: Twisting multiple thin copper/aluminum wires into a thick conductor (such as power cable conductors with an area of 10mm ² or more). Compared to a single thick wire, twisted conductors have stronger flexibility (easy to bend and lay), better tensile resistance (avoiding single wire breakage), and a larger heat dissipation area (reducing heat generation during current transmission). For example, copper conductors in low-voltage power cables often use "bundle twisting" (irregular loose twisting), while medium and high-voltage cables use "regular twisting" (uniformly arranged in sequence). High speed twisting machines can complete precise twisting of large section conductors.
Twisting of flexible cables and special cables: For cables that require frequent bending (such as machine tool cables and robot cables), multiple thin insulated wire cores are twisted at high speed and combined with a filling layer to form a "flexible structure" to avoid single wire core breakage under stress. For example, drag chain cables need to withstand millions of bends, and the twisting pitch and direction of their internal cores need to be precisely controlled. High speed twisting machines can stably achieve this process.

2. Communication cable industry: reduce signal interference and ensure transmission quality
Communication cables (such as Ethernet cables, RF cables, and fiber optic cables) require extremely high stability for signal transmission, and twisting is the core means to reduce interference:
Twisted pair: The core structure of Ethernet cables (such as CAT5 and CAT6) is "4-pair twisted pair", with two insulated copper wires twisted at a fixed pitch per pair. Twisting can cancel out the effects of external electromagnetic interference (such as electromagnetic fields and radio waves) on two wires, reducing signal attenuation. The high-speed twisting machine can accurately control the twisting pitch (error ≤± 0.5%), ensuring consistent interference suppression capability for each pair of twisted wires and meeting the requirements of high-speed data transmission (such as 10Gbps).
RF cable and coaxial cable twisting: The outer conductor of RF cables (used for communication base stations and radars) often adopts a "copper strip longitudinal wrapping+tinned copper wire twisting" structure. High speed twisting can ensure the uniformity and shielding performance of the outer conductor (reducing signal leakage); Twisting the inner conductor of coaxial cable (such as thin copper wire) can improve flexibility and adapt to curved installation scenarios.

3. Electronic wire industry: adapting to the connection needs of precision equipment
The internal connection wires of electronic devices such as mobile phones, computers, and instruments need to be flexibly wired in small spaces, and the thin diameter single wire twisting ability of high-speed twisting machines is crucial:
Twisting of micro wires: Twisting multiple enameled wires (copper or alloy wires) with a diameter of 0.05~0.5mm, used for motor windings, sensor leads, etc. Twisting can increase the current carrying capacity of the wire (parallel connection of multiple wires), while improving its bending resistance (avoiding repeated bending and breakage of a single thin wire). For example, twisting the thin wires (with a diameter of less than 0.1mm) inside the headphone cable can reduce the probability of breakage and extend its service life.
Shielded wire twisting: The signal wires of electronic devices (such as USB cables and HDMI cables) often require a "core wire+shielding layer" structure, and the shielding layer is mostly "tinned copper wire weaving+aluminum foil". The copper wire weaving can be completed by a high-speed twisting machine to form a dense shielding network, isolating external electromagnetic interference (such as interference from mobile phone signals on audio cables).

4. Special equipment cables: meet the durability requirements of extreme environments
In the fields of automobiles, aerospace, rail transit, etc., cables need to withstand extreme environments such as vibration, high temperature, and oil pollution. Stranded structures are the key to improving reliability:
Automotive wiring harness twisting: The control wiring harness inside the car (such as engine compartment wiring harness and chassis wiring harness) needs to work in a vibrating environment for a long time. Multiple insulated wire cores are twisted at high speed to form a "bundle structure", which can reduce the wear and breakage of wire cores caused by vibration and facilitate wiring (reducing space occupation).
Aerospace cable twisting: Cables for aircraft, satellites and other equipment need to be lightweight and resistant to high and low temperatures (-55 ℃~125 ℃). Using small-diameter silver plated copper wire twisting can reduce weight while ensuring conductivity, and the twisting structure can improve fatigue resistance (adapt to expansion and contraction caused by high-altitude pressure changes).

5. Metal wire products: improve structural strength and molding efficiency
In addition to cables, high-speed wire twisting machines are also used for forming some metal wire products, especially in scenarios where high efficiency is required:
Preliminary stranding of steel wire rope and steel cable: In the initial processing of small steel wire ropes (such as elevator cables and lifting cables), high-speed stranding machines can strand multiple steel wires into strands (such as 7-strand 19 wire structures), providing basic strands for subsequent rope joining processes, which can improve production efficiency by more than 30% compared to low-speed equipment.
Metal mesh wire twisting: Some metal protective nets (such as mesh screens and guardrails) require wire twisting to enhance strength. High speed wire twisting machines can quickly complete the twisting of multiple iron wires, making them suitable for large-scale mesh production.