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Home / Product / Cantilever Single Twisting Machine / Light-Duty Intergrated Type Cantilever Single Twisting Machine (External Capstan and Active take-up)

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Cantilever Single Twisting Machine

Light-Duty Intergrated Type Cantilever Single Twisting Machine (External Capstan and Active take-up)

The stranding cantilever and external capstan are connected as one-piece and rotate synchronously of the Light-Duty Intergrated Type Cantilever Single Twisting Machine (External Capstan and Active take-up) . The take-up reel is equipped with an independent motor drive, and it rotates concentrically with the stranding cantilever. The stranding cantilever motor drives the stranding cantilever and the external capstan rotating part to rotate synchronously at a constant speed; the take-up motor drives the take-up spindle to rotate at a variable speed. The external capstan is composed of a capstan wheel and multiple multi-groove tension pulleys. The motor drives the capstan wheel to rotate, driving the wires to advance and twist at a constant linear speed. When the multi-groove tension pulleys move forward and backward along the axis, it outputs a voltage signal to control the take-up spindle to regulate speed. A speed difference is formed because of  the constant speed of the cantilever and the variable speed of the take-up spindle. The rotational speed difference ratio depends on the stranding pitch setting. The twisted wires are wound onto the spool by the power of take-up motor due to speed difference. As the wires accumulate on the reel from empty to full, the diameter gradually increases. The control system automatically adjusts the variable speed of the take-up motor, and the differential automatically transverse to the third variable rotational speed to the take-up spindle. This is how the production of twisted wires is maintained at a constant line speed. This machine can be equipped with different types of auxiliary equipment such as pay-off racks, center rotating wrapping machines, and longitudinal wrapping machines to realize the twisting of various wires with an outer diameter within 10mm. It has high production efficiency, low faults, and the finished wire products have excellent performance indicators. This type is suitable for stranding wires that require higher performance qualifications.

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Product Details

COMPONENTS

● Pay-off stand
● Wire concentrator
● Constant tension longitudinal taping maching - optional
● Four-head longitudinal taping machine - optional
● Central rotating taping machine - optional
● Dual-wheel multi-groove rotational capstan
● Light-Duty Intergrated Type Cantilever Single Twisting Machine (External Capstan and Active take-up)
● Control System
● Peripheral auxiliary equipment can be customized


TECHNICAL SPECIFICATIONS

Main technical parameters 800 type 1000 type
Suitable wire type Mainly suitable for UTP, FTP and other multi core wires stranded cable, also for small-size high-frequency wire, drag chain wire, control cable and other cable stranding.
Core wire specification Ø1.5-3.0
Outer diameter of stranded wire Ø4-9
Pay-off specifications 400-500 400-630
Pay-off type It can be configured with various power or passive pay-off stands such as shaft type, shaftless type, back twist type, etc
Take-up specifications 800x600 1000x750
Inner hole of coil Ø80 Ø127
Overall machine structure Take the center line of single twist main model as an axis, the production line from pay-off to take-up is linearly distributed in split type structure. 
Stranding die The mold is fixed at the mold hole behind the wire concentrator, with a standard mold outer diameter of 25.
Back twist method The standard configuration does not have a back-twist function, but a back-twist pay-off can be customized to achieve torsion free and flexibility during cabling.
Back twisting ratio The standard configuration does not have a back twist ratio and the product has internal stresses. A back-twist pay-off can be customized with a back-twist ratio ranging from 0% to 120%
Stranding direction S/Z
Single twisting machine rotation speed MAX800RPM MAX700RPM
Wire-speed range 30-150
Wire twisted pitch 50-300
Pitch accuracy When operating at a constant speed, the pitch accuracy is within ±1.5mm. During the start/stop process, the pitch accuracy is within ±3mm.
Cantilever material Lightweight and low air resistance aluminum alloy cylindrical spiral arm structure.
Cantilever power 30KW 45KW
Main engine brake Hydraulic disc brake
Capstan type Single-groove double-wheel capstan.The rotating body and the mainframe wire spindle are directly connected through the tyre flexible coupling. The capstan wheel is a fixed wheel, and the external motor power drives the rotation of the capstan wheel through the mechanical structure. The driven wheel is a free wheel, capable of linear reciprocating motion. The external servo motor transmits constant tension to the driven wheel through mechanical transmission.
Capstan wheel diameter Ø320
Capstan power 7.5KW
Driven wheel tension motor  3.7KW servo motor
Host reel lifting Hydraulic pallet electric lifting 
Reel tightening method Top cone nut tightening take-up reel
Reel Loading weight MAX600KG MAX1000KG
Take-up reel power 30KW 45KW
Take-up wire position arrangement 1.5KW
Pay-off material run-out detection Alarm and automatic stop when the core wire is about to run out/alarm and automatic stop when the wire is broken.
Pay-off tension type The standard is to adjust the tension by moving or adding/removing weight blocks, and it can also be customized to adjust the tension by using a servo motor.
Take-up tension type The driven wheel of the rotary capstan and the tension servo motor generate tension through the belt transmission. The driven wheel outputs a voltage signal when pulled by the wire displacement and controls and sends feedback of the PID speed of the take-up motor.
Taping material AL, MYLAR, Cotton tape, Non-woven fabric
The outer diameter of a tape reel MAXØ400
Tape width 5-35mm
Hole of the tape reel 50.8/76 Universal
Taping power 2.2KW
Taping speed MAX1800RPM
Taping tension units Standard to use magnetic powder clutch, hysteresis clutch can be customized.
Taping strip storage length 400mm, strip change without cutting the wire.
Strip breakage inspection Automatic stop when the strip is about to be exhausted and broken
Overlap rate 0-50%, programme setting
Longitudinal taping tension units Standard to use magnetic powder clutch, hysteresis clutch can be customized.
Longitudinal taping mould Seam wrapping tubes other types can be customized.
Tension display Standard is without tension display. Communication type digital pressure sensor, tension overrun alarm, and automatic shutdown can be customized.
Formula management A custom formulation management system enables data such as tension, temperature, extrinsic diameter, pitch, S/Z, line winding distance, and barometric pressure to be fed into the PLC, supporting data collection and import for digital production.
Safety protection Automatic detection and prediction of temperature /vibration /noise /pressure can be customized according to CE/CSA/UL standard design.
Spark detection Spark tester can be customized. 
Power standards Standard is 3-phase 380V/50Hz and the power supply can be customised for different countries and regions.




PRODUCT FEATURES

● Efficient Speed: The single twisting cantilever is subjected to static and dynamic balance testing and calibration, resulting in less vibration and low noise. The main spindle operates at high speed continuously without generating heat, guaranteeing efficient speed.

● Accurate Pitch: The external rotating capstan drives multiple strands of wire movement, creating an accurate and stable pitch before the main twisting machine. Due to the constant bottom diameter of the capstan wheel and the absence of other interfering factors, the pitch remains precise and stable.

● Stable tension:  Torque outputed by servo motor is transmitted to the driven wheel on the rotating capstan, and the take-up tension is kept constant from the empty to the full reel, so that the finished wire is not damaged due to the size of the loaded reel.

● Efficient wire arrangement: The wire arrangement process adopts a box-shaped structure, where the wire reel moves back and forth in a straight line along with the wire take-up box, ensuring a neatly organized wire arrangement.

● Less Bending: The design of the capstan roller and the wire guide wheels adopt a large diameter, reducing the bending of the wire and avoiding damage to the pitch.

● Easier Operation: The machine base is barrier-free, without any crawling ramps. The wire spools can be directly pushed into the machine for loading and unloading, making the operation effortless.

● Intelligent: Recipe management, allowing for one-click retrieval of SOP recipes, one-click preparation for start-up, and one-click activation;Dynamic feedback on twist pitch and torque return is provided, fault detection, cable breakage detection, metre-to-shutdown, intelligent control.

● Easy maintenance: Customers outside of China can customize the use of the Profinet bus control, which ensures fast and low-interference signal transmission. As long as there is a communication network in any country or region, remote fault detection, troubleshooting, and maintenance services can be quickly implemented.        

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