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Cantilever Single Twisting Machine Manufacturers

The Cantilever Single Twisting Machine is a cable-forming equipment that twists multiple core wires at high speed through a cantilever and synchronously and concentrically winds them. Since each rotation of the cantilever forms a pitch, it is called a Cantilever Single Twisting Machine. According to the structure type, it is divided into Differential speed take-up type Cantilever Single Twisting Machine(without take-up pulley), Lightweight one-piece Cantilever Single Twisting Machine(External pulley and power take-up), Heavy-duty separated Cantilever Single Twisting Machine(External pulley and power take-up), Heavy-duty separated Cantilever Single Twisting Machine(External pulley and Torque take-up), etc. Due to the different outer diameters of wires, different electrical performance requirements, and different cost-effectiveness, the above models are suitable for different wire stranding and cable production fields, and users can choose and buy by themselves.

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A Mature Factory You Can Count On

Gemwell Electrical Machinery Co., Ltd.
Founded in 2005, GEMWEL is a professional China high speed twisting machine Manufacturers and China Wire and Cable Stranding Machine Factory provider in design, manufacture and sales for the United States, Canada, Mexico, Germany, Italy, India, Thailand, Russia and etc. more than 40 countries in the world.

The success of customer is our goal to get success!

● Focus on technological innovation, quality stability, precision manufacturing and considerate service.
● Insist on making all in detail well, repay every customer with high quality.
● Take customer's success as the embodiment of our enterprise value.

The enterprise spirit of dedication, dedication, enterprise and exploration encourages us to innovate and transform the technology of wire and cable into advanced productive forces, in order to build GEMWELL into a new name card of China facing to the world.
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Cantilever Single Twisting Machine Industry knowledge

A cantilever single twisting machine is one of the workhorses of conductor production. It pulls individual wires off supply bobbins, gathers them around a common axis, and turns them into one twisted or stranded conductor in a single pass. Depending on conductor size and the output a factory needs, the same job can also be run on a high speed twisting machine, which generally favors finer wire and higher rotational speed. Both machines sit at the center of wire and cable stranding, where the goal is a conductor that stays flexible, keeps its round shape, and carries current evenly along its length. The sections below cover what stranding does to a conductor, how to choose between single twist and faster machines, how to work out twisting settings, and what the control and support side of a twisting line involves.

What Stranding Does to a Conductor Before It Reaches the Cable

A solid copper conductor is stiff. Bend it back and forth a few times and it work-hardens, then eventually cracks. Build the same cross-section from many thinner wires and it bends easily, because each strand only has to slide a short distance against its neighbors. That is the whole reason stranding exists, and the twist is what holds those strands together as one round conductor.

The most familiar layout is concentric: one center wire, then layers of six, twelve, and eighteen wires around it. Each layer holds six more wires than the one beneath, so the running totals are 7, 19, and 37 wires. Layers are commonly laid in alternating directions so the finished conductor does not try to untwist itself.

Core only 1 wire 1 + 6 7 wires 1 + 6 + 12 19 wires 1 + 6 + 12 + 18 37 wires

Cumulative wire count by layer in a concentric construction (calculated: each layer adds six wires more than the layer below).

On a single twist machine, the supply bobbin rides on a rotating frame, and one turn of that frame puts one twist into the wire. A double twist arrangement puts in two. That single relationship drives most of the settings discussed later. A twisting machine only performs as well as the system around it, which is why Gemwell Electrical Technology Co., Ltd designs its automation supply around the complete line rather than the machine alone.

Single Twist or High Speed Twisting: Matching the Machine to the Job

Neither machine type is simply better. A cantilever arrangement can carry larger supply bobbins, which suits heavier conductors and long unbroken runs. A high speed twisting machine, often built on a double twist principle, gets more twists into each rotation and runs faster, which is why it is commonly picked for finer wire. The chart below compares the two on general characteristics.

Rotational speed Twists per rotation Bobbin capacity Heavy conductors Fine wire Cantilever single twist High speed twisting

Qualitative comparison on a 1 to 5 scale, based on general characteristics of the two machine types. It is an illustration, not measured data.

Questions worth asking before choosing

  • How thick is the finished conductor, and how many wires does it contain?
  • How long should a run be before the bobbin has to be changed?
  • How often will the product change, and how quickly must settings be recalled?

The choice also shapes the control side, since a faster machine leans harder on its drives and sensors. In line with the system design, Gemwell Electrical Technology Co., Ltd supplies the necessary automation control equipment, so the controls follow the machine that was chosen and not the other way round.

Lay Length, Line Speed, and Rotation: Working Out the Settings

In wire and cable stranding, the setting people talk about most is lay length, the distance a strand travels along the conductor to complete one full turn. On a single twist machine it follows directly from line speed and rotation speed:

Lay length (mm) = line speed (m/min) x 1000 / rotation speed (rpm)
Twists per meter = 1000 / lay length (mm)

Take a line running at 30 m/min with the frame turning at 1,000 rpm. The lay length comes out at 30 mm, or about 33 twists per meter. Want a tighter 15 mm lay at the same line speed? You need 2,000 rpm, or you can halve the line speed to 15 m/min and stay at 1,000 rpm. A double twist machine puts in two twists per rotation, so the same speed and rpm give twice as many twists per meter.

0 25 50 75 100 100 60 40 30 20 15 300 500 750 1000 1500 2000 Rotation speed (rpm) Lay length (mm)

Lay length against rotation speed with the line speed fixed at 30 m/min (calculated from the formula above).

The second view flips the question. If the drawing calls for a certain lay, how many twists does each meter of conductor receive? Shorter lays mean many more twists, which is why tight lays demand higher rotation speed or slower line speed.

0 20 40 60 66.7 50 33.3 25 16.7 15 mm 20 mm 30 mm 40 mm 60 mm Lay length Twists per meter

Twists per meter for common lay lengths on a single twist machine (calculated as 1000 divided by lay length in mm).

Holding these ratios steady from the first meter to the last is a control job, not a mechanical one. It is where the programming and parameter adjustments that Gemwell Electrical Technology Co., Ltd carries out with clients during commissioning decide how repeatable the lay length really is.

What Goes Into Installing, Commissioning, and Supporting a Twisting Line

Gemwell Electrical Technology Co., Ltd treats the machine and its controls as one delivery. In line with the system design, we supply the automation control equipment the line needs, and each item has its own job on a twisting line:

  • PLCs (Programmable Logic Controllers): run the machine sequence and keep rotation and take-up in step.
  • HMIs (Human-Machine Interfaces): the screen where operators enter and read settings such as lay length.
  • Sensors: report what the line is actually doing so the controls can react.
  • Actuators: carry out the movements the PLC commands.
  • Electrical control panels: house and organize the electrical side of the system.

Once the equipment arrives, we assist clients with installation, wiring, and commissioning, which covers the physical setup, the electrical connections, programming, and parameter adjustments. We then integrate the control equipment with the other components of the line and carry out system debugging and optimization, so the whole line runs in step and meets the client's expectations.

Support stages provided around the automation control system of a twisting line.
Stage Scope Result
Equipment supply PLCs, HMIs, sensors, actuators, control panels Controls matched to the system design
Installation and wiring Physical setup and electrical connections Equipment in place and connected
Commissioning Programming and parameter adjustments Machine running at required settings
Integration Linking controls with other line components One coordinated line
Debugging and optimization System-wide adjustment and testing Operation that meets client expectations
Training and support Operating and maintenance instruction, technical assistance Client team able to run and maintain the system

Training that stays useful after handover

We also provide operational training and technical support so your team can operate and maintain the automation control system correctly, and can get prompt technical assistance when something comes up.

Frequently Asked Questions

Does a higher rotation speed always mean more output?

Only if the lay length stays the same. Line speed equals lay length times rpm divided by 1000, so a 20 mm lay at 1,500 rpm allows 30 m/min. Raise the rpm and keep the same lay, and the line can run faster. Raise it while also asking for a tighter lay, and the extra rotation is used up by the shorter lay.

Why does lay length drift during a long run?

Drift usually points to the rotation drive and the take-up falling out of step, or to tension changing as a bobbin empties. Sensor feedback and a properly tuned PLC are what keep the ratio steady, which is why control parameters deserve as much attention as the mechanics.

What does commissioning a twisting line involve?

Physical setup, electrical connections, programming, and parameter adjustments, followed by integration with the rest of the line and system debugging. The aim is a line that runs as one system, not a machine that works only on its own.

How fast can I expect help if a problem appears?

In case of technical challenges, Gemwell Electrical Technology Co., Ltd provides comprehensive mechanical and electronic support and is committed to addressing post-sales needs within 12 hours.

Can faults be handled without an engineer traveling to my factory?

In many cases, yes. Each of our machines is equipped with remote diagnostic capabilities, so our engineers can troubleshoot and resolve issues remotely. This proved especially convenient during the COVID-19 pandemic, when international transportation was restricted.