SKS-774: Primary TFO Twisting & Merging Machinery

Advantage

1. Two-for-One Twisting Technology
   The SKS-774 uses TFO technology, allowing the machine to produce two twists for each spindle revolution. This provides high twisting efficiency and helps reduce processing time compared with conventional twisting systems.
2. Wide Yarn Count Range
   The machine can process different filament yarn ranges according to the spindle gauge configuration:

• 180 mm gauge: 75D–450D
• 225 mm gauge: 450D–1500D

This makes the SKS-772 suitable for both medium and heavier filament yarn applications.

3. High Spindle Speed
   The 180 mm configuration can operate at approximately 5,000–12,000 rpm, while the 225 mm configuration operates at approximately 3,500–10,000 rpm, supporting efficient industrial production.
4. Flexible Twist Setting
   The machine provides a wide twist range, approximately 100–1,800 TPM, depending on configuration. Both S-twist and Z-twist can be produced.
5. Twisting + Merging Function
   The SKS-774 is not limited to twisting. It can also perform filament yarn twisting and merging, providing greater production flexibility.
6. Touch-Screen Operation
   The touch-screen control system makes machine operation, parameter setting and production monitoring easier and more convenient for operators.
7. APPLICATIONS

The SKS-774 Primary TFO Twisting Machine is primarily designed for filament yarn processing.

Typical applications include:

• Polyester filament yarn
• Nylon filament yarn
• Synthetic filament yarn
• Industrial filament yarn
• Medium- and heavy-denier filament yarn
• Twisted filament yarn
• Merged / combined filament yarn
• Yarn requiring S or Z twist
• Pre-twisting before subsequent textile processing

Typical end-use industries include:

Knitting → Weaving → Home Textiles → Apparel → Industrial Textiles → Technical Textiles

The machine can be used when manufacturers need to give filament yarn a controlled primary twist before further processing.

S / Z Twist Capability

The ability to produce either S-twist or Z-twist allows the machine to meet different yarn and downstream production requirements.

Suitable for Continuous Industrial Production

With section-based construction, long-belt spindle drive and multiple machine sections, the SKS-774 is designed for stable, continuous production.

#SKS-775:  Secondary Twisting Machine

In the production of multi-ply yarns (such as industrial sewing threads, tire cord yarns, netting cords, and ropes), the twisting process is typically divided into two stages:

1. Primary Twisting (#SKS-774): The single yarn is given its initial twist in a specific direction.
2. Secondary Twisting (#SKS-775): Multiple pre-twisted yarns are combined together and twisted a second time—usually in the opposite direction—to balance internal stress, increase tensile strength, and prevent snarls or untwisting.

       3. Twist Balance: If the primary twist is in the Z-direction, the secondary twist is typically
           applied in the S-direction (i.e., S/Z or Z/S structure) to make the finished ply yarn smooth
           and torque-free.

• Versatile Secondary Twisting Capability

  Extensively customized based on filament yarn characteristics, offering a low-energy, labor-saving solution that can partially replace traditional compound twisters. It functions as an ideal secondary TFO twister in two-stage (S and Z) twisting processes.
  

  Parameter Item	Technical Specifications
  Spindle gauge	290 mm
  Spindles per section	12
  Standard sections per set	12
  Standard spindles per set	144
  Spindle type	166 / 230
  Yarn pot type	166 / 230
  Operation method	Pneumatic / Manual
  Processing material	400D–1260D filament
  Spindle running speed	2000–8000 rpm
  Twists range	200–1500 TPM
  Feed-in bobbin	Straight bobbin
  Feed-in yarn package weight	4 kg
  Winding up bobbin	230 mm / Straight bobbin
  Winding up package weight	4 kg
  Winding up yarn speed	$\le$ 80 m/min
  Yarn shaping control	Servo control system
  Spindle driven method	Long belt
  Twist direction	S / Z
  Tension control	Steel ball, flyer
  Power configuration	2 pcs of 380V / 11 kW / 15 kW motors
  Input power and capacity	Three-phase 380V / 50 Hz / 80 A
  Operation control	Touch Screen
  Dimension	Headstock + Tailstock: 3 m Machine body: 2.04 m × 12 sections Width: 1.5 m, Height: 1.5 m