https://www.sks-machinery.com/custom_142310.htmlSKS-770: DOUBLING MACHINERYSKS-770: DOUBLING MACHINERYSKS-770E: Electronic Yarn Doubling Machine
The #SKS-770E Electronic Yarn Doubling Machine is a high-precision textile machine designed to combine two or more yarns into a single, uniform yarn package. It is suitable for cotton, wool, polyester, nylon, blended yarns, and other filament or spun yarn applications.
The machine uses an advanced electronic control system to accurately monitor yarn feeding, tension, spindle speed, and winding conditions. Individual spindle control helps maintain stable yarn tension and consistent doubling quality throughout the production process. When yarn breakage or abnormal running conditions occur, the machine can automatically stop the affected spindle, reducing yarn waste and preventing defective packages.
Its user-friendly control interface allows operators to conveniently set and monitor key production parameters. The optimized yarn path and precision winding system ensure smooth package formation and reliable unwinding during subsequent processes.
The Electronic Yarn Doubling Machine is widely used for weaving, knitting, twisting, warping, and other downstream textile applications, providing higher productivity, improved yarn quality, and stable production performance.
Item
Specification
Machine Type
Type A
Spindle Gauge
450 mm
Suitable Materials
Various short-fibre and synthetic-fibre yarns
Operation Method
Manual
Spindles per Section
4 spindles
Sections per Machine
≤ 12 sections
Yarn Count Range
Short-fibre yarn: 10 Ne–80 Ne
Winding Speed
≤ 800 rpm
Winding Tube Size
Customer specified
Package Weight
≤ 4 kg
Standard Number of Spindles
40 spindles
Machine Dimensions (L × W × H)
2380 × 860 × 1300 mm
Optional Function
Individual spindle length counter
SKS-770S: Precision Doffer/Selector Doubling Machine
#SKS-770S Doffer/Selector Doubling Machine is a specialized textile machine designed for efficient yarn doubling, automatic doffing, and precise package selection. It combines reliable mechanical performance with an intelligent control system to improve production efficiency and reduce manual intervention.
The machine is suitable for doubling two or more yarns into a uniform package, supporting a wide range of yarn types and counts for weaving, knitting, twisting, and other downstream textile applications. Its precision yarn-guiding and tension-control systems help maintain stable yarn tension and consistent package formation throughout the production process.
The integrated Doffer and Selector system enables fast and accurate package handling, allowing completed packages to be automatically removed and selected according to preset production requirements. This reduces operator workload, minimizes production interruptions, and improves overall machine utilization.
With its stable operation, high automation, accurate yarn control, and convenient operation, the Doffer/Selector Doubling Machine provides an efficient solution for modern yarn processing factories seeking higher productivity, consistent quality, reduced labor requirements, and reliable long-term performance.
#SKS-770B: ShuttleBox Doubling Machinery
The #SKS-770B Shuttle Box Doubling Machine is a high-efficiency textile machine designed to combine two or more yarns and wind them into uniform packages. Its shuttle box-type creel structure allows flexible arrangement of different yarn packages, making the machine suitable for various yarn doubling requirements.
The precision yarn-guiding system and stable tension-control mechanism help minimize yarn tension fluctuations, entanglement, and breakage, ensuring consistent doubling quality and excellent package formation. The machine is designed for convenient operation, quick yarn changing, and easy adjustment, helping improve productivity while reducing labor requirements.
It is suitable for a wide range of yarns, including cotton, wool, polyester, nylon, blended yarns, spun yarns, and filament yarns. The machine can be widely used in weaving, knitting, twisting, warping, and other downstream textile processes.
With its stable operation, efficient yarn handling, flexible configuration, and reliable performance, the Shuttle Box Doubling Machine provides a practical and economical solution for modern textile mills seeking improved productivity, consistent yarn quality, and reduced production costs.
Basic Specifications
Item
Specification
Standard Number of Spindles
24 spindles
Spindle Gauge
460 mm
Spindles per Section
4 spindles
Sections per Machine
6 sections
Power per Spindle
250 W, 3-phase 220 V / 60 W, 3-phase 220 V
Number of Ends to be Doubled
2–8 ends
Winding Speed
≤ 400 m/min
Traverse Length
215 mm / 250 mm
Package Weight
≤ 4 kg / ≤ 6 kg
Drive System
Individual spindle control
Length Measurement
Sensor-based length measurement
Operation & Control
Touchscreen
Tension Control
Tension spring
Yarn Break Stop System
Photoelectric detection (piezoelectric sensing)
Empty Package Marking Air Pressure
1.8–2 Pa
Input Power Supply & Total Capacity
220 V / 50 Hz / 30 A
Grooved Drum
50 mm grooved drum
Optional Device
Empty package marking system
Machine Dimensions
Head section length: 2,250 mm (including electrical cabinet); Width: 3,000 mm; Height: 1,830 mm; Body section length: 1,___ mm
#SKS-770D - Doubling Winder Machinery
The #SKS-770D Double Winder is designed for doubling and winding two or three strands of yarn into one uniform package. It combines multiple yarn strands from separate supply packages and winds them together onto a bobbin or package, preparing the doubled yarn for the subsequent Two-for-One Twisting process.
The machine is suitable for cotton, hemp and other natural fibres, wool/fur fibres, synthetic fibres, and various blended yarns. By providing stable yarn tension, reliable broken-yarn detection and uniform winding, the machine ensures consistent package quality for downstream twisting and textile production.
Model No.
SKS-770D
Mode of machine
double sides, single layer
No. of spindles
The multiple of ten (100 spindles, ordinary mode)
spindle gauge
340mm/410mm
Anti-overlap mode
electronic formula
Driving mode
Single spindle control by single motor
Form of winding
grooved drum
Merge strands
2-3 strands
Input power
380V/50Hz/30A
Tension control
self-weight platen mode
Auto-stopper
electronic broken testing device, pneumatic lifting device
Power/ spindle
90W Brushless DC energy saving motor
Overall size
Head-stock 400mm* 710mm* 1300mm2060mm * 1450mm *1900mm. (per section)
Optional
Preset yarn length device, air splice device, over head blower, cutter
SKS-770F: Straight-Line Yarn Opening Machinery
The Straight-Line Yarn Opening Machine is a professional textile machine designed to efficiently open, separate, and guide yarn from packages or bobbins in a controlled and uniform manner. It provides stable yarn delivery with consistent tension, helping prevent yarn entanglement, overlapping, and irregular feeding during subsequent textile processes.
The machine adopts a straight-line yarn feeding arrangement, making the yarn path simple, clear, and easy to operate. Its optimized yarn-guiding system ensures smooth running and minimizes unnecessary friction and tension fluctuations. The machine can be equipped with individual tension control, yarn break detection, automatic stop functions, and adjustable yarn guides according to different production requirements.
It is suitable for a wide range of yarn types and can be used as a preparatory machine for yarn doubling, twisting, warping, winding, and other textile processes.
With its practical design, stable performance, easy operation, and efficient yarn handling, the Straight-Line Yarn Opening Machine helps improve production efficiency, yarn quality, and process reliability while reducing manual intervention and yarn waste.
Item
A Type
B Type420 mm
B Type420 mm
B Type520 mm
Machine Description
Standard Type
Straight Doubling Machinewith Aluminium Bobbin Creel
Straight Doubling Machinewith Aluminium Bobbin Creel
Straight Doubling Machinewith Aluminium Bobbin Creel
Spindle Gauge
336 mm
420 mm
420 mm
520 mm
Suitable Materials
Various short-fibre / synthetic-fibre twisted yarns
Various short-fibre / synthetic-fibre twisted yarns
Various short-fibre / synthetic-fibre twisted yarns
Various short-fibre / synthetic-fibre twisted yarns
Number of Strands
2–3 strands
2–3 strands
2–3 strands
2–4 strands
Traverse Length
152 mm
215 mm
152 / 215 mm
250 mm
Tension Control
Tension spring
Tension spring
Tension spring
Tension spring
Drive System
Individual spindle control
Individual spindle control
Individual spindle control
Individual spindle control
Operation Control
Touch screen
Touch screen
Touch screen
Touch screen
Automatic Yarn-Break Stop
Photoelectric sensing(piezoelectric sensing)
Photoelectric sensing(piezoelectric sensing)
Photoelectric sensing(piezoelectric sensing)
Photoelectric sensing(piezoelectric sensing)
Spindle Motor Power
90 W, 3-phase 220 V
90 W, 3-phase 220 V
90 W, 3-phase 220 V
120 W, 3-phase 220 V
Operation Method
Manual
Manual
Manual
Manual
Spindles per Section
12
10
10
8
Sections per Machine
≤12
≤12
≤12
≤12
Yarn Count Range
Short-fibre: 10–80 Ne
Short-fibre: 10–80 Ne
Short-fibre: 10–80 Ne
Short-fibre: 10–80 Ne
Winding Speed
≤800 r/min
≤800 r/min
≤800 r/min
≤800 r/min
Winding Tube Size
Customer specified(Winding tube: 170 mm)
Customer specified(Winding tube: 230 mm)
Customer specified(Winding tube: 170 / 230 mm)
Customer specified(Winding tube: 280 / 290 mm)
Package Weight
≤3 kg
≤3 kg
≤3 kg
≤5 kg
Standard Spindles
144
120
120
96
https://www.sks-machinery.com/custom_142281.htmlSKS-771: SPANDEX YARN COVERING MACHINERYSKS-771: SPANDEX YARN COVERING MACHINERY#SKS-771 Air Spandex Covering Machinery
SKS-771 Air Spandex Covering Machine is an advanced textile machine specially designed for producing high-quality elastic covered yarn. It combines Spandex (elastane) with outer fibers such as Polyester, Nylon, Polyamide, and other suitable yarns. Through high-speed airflow and precise tension control, the outer fibers are evenly wrapped around the Spandex core, producing Air Covered Yarn with excellent elasticity, softness, uniformity, and stable quality.
In today’s textile industry, elastic yarn is widely used in sportswear, yoga wear, underwear, swimwear, socks, leggings, seamless garments, medical textiles, and high-stretch knitted fabrics. Therefore, reliable and efficient equipment for producing Air Covered Yarn is highly valuable to yarn manufacturers and textile processing factories.
1. High Production Efficiency
The SKS-771 uses advanced air-covering technology to continuously process Spandex and covering fibers at high speed. Compared with conventional processing methods, air covering enables efficient continuous production and helps manufacturers significantly increase output.
For factories producing large volumes of elastic covered yarn, higher production capacity means more yarn can be produced using the same factory space and labor resources, helping reduce the production cost per kilogram and improve overall profitability.
2. Uniform and Consistent Yarn Quality
One of the most important requirements for Air Covered Yarn is uniform coverage of the outer fibers around the Spandex core. Uneven covering can cause exposed Spandex, insufficient coverage, inconsistent appearance, and problems during subsequent knitting or weaving processes.
The SKS-771 uses precise yarn guiding, tension control, and air-jet technology to distribute the covering fibers evenly around the Spandex core, creating a stable and consistent yarn structure.
3. Stable Spandex Tension Control
Spandex has a high degree of elasticity, making tension control extremely important during the covering process. Excessive tension may affect the elasticity and recovery properties of the yarn, while insufficient tension may result in unstable covering.
The SKS-771 allows the Spandex tension to be adjusted according to different Spandex specifications and production requirements. This helps maintain stable processing conditions and improves the consistency of elasticity and overall yarn quality.
4. Excellent Elasticity and Soft Hand Feel
With proper air covering, the Spandex core is evenly surrounded by the outer fibers, improving the surface characteristics of the yarn and providing excellent softness, stretchability, elasticity, and wearing comfort.
These characteristics make SKS-771 Air Covered Yarn particularly suitable for close-fitting and high-stretch textile products such as underwear, sportswear, yoga wear, socks, swimwear, and seamless garments.
5. Suitable for Various Fiber Materials
The SKS-771 is designed to work with different types of covering fibers according to specific product requirements. Suitable materials may include Polyester, Nylon, Polyamide, and other compatible filament or staple fibers.
By combining different Spandex specifications with different covering fibers, manufacturers can develop Air Covered Yarn with different levels of elasticity, softness, appearance, and functional performance. This allows factories to expand their product range and serve a wider variety of markets.
6. Lower Production Costs
For textile manufacturers, the purpose of investing in advanced machinery is not only to increase production capacity but also to reduce the manufacturing cost per kilogram.
The SKS-771 helps achieve this through high-speed production, stable processing, reduced manual intervention, and consistent yarn quality. At the same time, improved covering uniformity can reduce defective products, reprocessing, and raw-material waste, further lowering production costs.
7. Opportunity for High-Value Textile Products
As global demand continues to increase for comfortable, elastic, functional, and performance-oriented fabrics, Air Covered Yarn has become an important raw material for many high-value textile products.
With the SKS-771, manufacturers can produce different specifications of elastic covered yarn for knitting mills, hosiery manufacturers, sportswear factories, underwear manufacturers, and high-stretch fabric producers.
This creates opportunities for factories to expand their product portfolio, enter new markets, and increase their value-added production.
The SKS-771 Air Spandex Covering Machine is more than just a yarn-covering machine. It is a complete production solution designed to help textile manufacturers increase productivity, improve quality, reduce production costs, and develop higher-value products.
With its high-speed air-covering technology, stable Spandex tension control, uniform fiber coverage, flexible material compatibility, and consistent production performance, the SKS-771 enables manufacturers to produce Air Covered Yarn with excellent elasticity, softness, uniform appearance, and stable quality.
For textile companies looking to expand their elastic yarn business, increase production efficiency, reduce labor costs, minimize material waste, and establish a modern Air Covered Yarn production line, the SKS-771 is a highly valuable investment that can significantly strengthen their production capabilities and competitiveness in the global textile market.
Types of winding
precision winding
Mechanical speed
up to 1000m/min (process speed depending on process parameters)
Package shape
freely programmable
Traverse length
155-250mm
Take-up package diameter
up to 200mm
Package weight
up to 2-5kg
Supply package diameter
up to 320mm
Yarns
like polyester, nylon, DTY, spandex and etc.
Take-up tubes
cylindrical and conical up to 3°30" conicity
Layout
single sided machine
Number of spindles per section
4 Spindles
Max spindles per set
48
Gauge
400mm
Roll numbers
3 rollers
Drive
individual
Installed power
~400w per spindle
Power consumption
~120w per spindle
Density of winding
Freely programable
Size per section (L*W*H)
1900*760*2000mm
