Yuejia Mechanical and Electrical Technology

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Jet loom

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The YJA780A series air-jet looms developed by the company embody independent innovation and a technology‑driven approach. By integrating the strengths of both domestic and international loom designs with China’s specific national conditions, and leveraging cutting‑edge technologies in their development and engineering, the YJA780A series boasts an inherent superior performance profile, which underpins its distinctive, high‑quality professional standards. The design philosophy behind the YJA780A series is to provide customers with looms that deliver outstanding performance at a competitive price.

Category:

Series Air Jet Loom

Product accessories:


Product Description

Product Features
The YJA780A series air‑jet looms developed by our company embody independent innovation and a technology‑driven approach. By integrating the strengths of domestic and international loom designs with China’s specific conditions, and leveraging cutting‑edge technologies in their development, the YJA780A series boasts an inherent foundation of superior performance, ensuring its distinctive, high‑quality professional standards. The design philosophy behind the YJA780A series is to provide customers with looms that deliver excellent performance at a competitive price. These machines are engineered to meet the demand for cost‑effective production of high‑quality fabrics, maximizing customers’ return on investment and serving as a reliable edge in today’s increasingly fierce market competition. Recently, the company has introduced an eight‑color weft‑selection model, further expanding the loom’s weaving capabilities and better aligning it with evolving market needs.

The dual‑side braking system has been improved to accommodate high‑speed operation and long‑width weaving, enhancing braking precision and effectively preventing the occurrence of weaving defects such as start‑up marks.

 

 

  Project Specifications Optional item
Reed width Nominal reed width 190.210.230.250.280.340.360cm  
Effective reed width Nominal reed width reduced by 0–60 cm (190–250 cm); nominal reed width reduced by 0–80 cm (280 cm and above).  
Weaving scope   Short fibers: 1005–53; Filaments: 50D–900D  
Weft Yarn Selection   Dual-jet free weft selection, 4-jet, 6-jet, 8-jet  
Power   Super starter motor  
Button-operated start, stop, and slow forward/reverse motion.  
Braking, positioning stop, and dual-side braking via an electromagnetic brake.  
Weft insertion   Combined primary and secondary nozzle system Stretch nozzle
Non-standard steel reed
Auxiliary main nozzle
Open mouth   Positive cam opening: maximum of 10 heddle frames.  
Multi-arm shedding: the harness frame can have up to 16 pages.
Sending sutras Side plate diameter Electronically Controlled Let-off (ELO) with Automatic Reversal Device  
Actively deliver scriptures  
800mm 1000mm
Coiling   ETU: Electronic Take-Up MTU: Mechanical Take-Up
Maximum fabric roll diameter 600mm  
Weft density range MTU: 6.6–80.5 strands/cm  
(16.7–204.4 stems/inch)  
Weaving length counting Display fabric length and fixed-length stop function on the touchscreen.  
Side support device Bottom-mounted or top-mounted  
Weft beating   Crank-type multi-heddle shed beating-up mechanism: 4-link beating-up (for reed widths of 190–280 cm or less); 6-link beating-up (for reed widths of 280–360 cm); equipped with a rocker‑axis intermediate support frame.  
Length measurement and weft storage   Weft Yarn Roller-Type Weft Storage Device  
Weft yarn rack   Floor-standing 4-cylinder yarn (2 jets), floor-standing 8-cylinder yarn (4 jets) Mechanical and pneumatic edge folding
Edge twisting   Planetary gear mechanism (intermediate yarn‑twist edging)  
Yarn-end treatment   The single yarn end is held using a yarn‑catching method.  
Weft cutting   Mechanical scissors  
Cheer up!   The main transmission components are lubricated by oil bath, with centralized manual greasing. Electric refueling
Parking device Weft break Photoelectric reflective weft detector with weft arrival angle display function  
Menopause Electrical contact type, six-row stop motion plate  
Other Selvedge yarn, yarn end treatment, yarn breakage stoppage  
Parking reason displayed Information displayed on the touchscreen; multifunctional four-color light parking indicator.  
Middle scissors   Mechanical type (used when weaving double-width fabric) Electronic type

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