The hollow twister is a product made by the United States of America, which is the air twist device used for the non-joint yarn in manual and mechanical action. The sample of this product relates to a 490L type of air twister under mechanical action (the yarn is introduced in relative direction), which is used in the "SAVIO" production of the "ESPERO" automatic winding machine. 490 l empty twister installed a complete tail yarn by high frequency vibration of oscillation untwisting the special device, its effect is: perfect blow open to connect the rear section of the yarn, (both high twist of single yarn and thread), important is that it can improve the connection of yarn strength, appearance, and increase the reliability of the process.

Since 490 l empty twister is the old model, now already can't satisfy the needs of many customers, now domestic wuxi three production of 698 q, for don't Stan's latest model, can substitute for update of 490 l.

A brief introduction to 490L:

Due to empty twister whole is made of high quality materials by precision design and manufacture of the closed type of instrument, and thus the dust float in the air of fiber has closed effect, reduce the damaged and maintenance to a minimum. It is easy to remove the empty twister from the top of a single top, only to separate a compressed air plug from the sealed fast connector, which can be removed from the winding machine. The applicable scope/JOINTAIR CAPACITY490L type air twister is designed to support yarn connections within the range of Nm8 to Nm120, and its yarn connection to each count only needs to be replaced by the replacement of the twisting joint and the twisting of the covering. The range of twisted yarns is not entirely dependent on the number of yarn counts, depending on the twist of the yarn, the twist (S or Z), the length of the fibers and the material. Twist twist JieQiang/MINGLING CHAMBER JieQiang is part of splice, here into the adjustable air flow, then blended fibre, splice, can use a variety of interchangeable twist JieQiang in the diagram, the form and characteristics of said JieQiang twist and twist JieQiang cover the best choose to have close relationship with the yarn characteristics, shall be determined by experienced personnel. The ASSEMBLY consists of a screw, a twist and a valve holder. The fallback cavity/the inlay is a part of the splicer. Before the yarn connection, the function of this device is used for preparation of tail yarn, untwisting cavity with an elastic oscillation, it at the rate of high frequency vibration, forced to connect the yarn end in airflow generated under the action of alternating motion. Such movement, causes the untwisting chamber itself of single yarn and plied yarn twisting (Z twist or S) ready to connect, for particularly difficult untwisting yarn, special untwisting cavity are available, and the untwisting cavity was designed to study used to make yarn for best untwisting processing. Various JieQiang twist and twist the yarn variety scope for JieQiang cover: type of yarn twist yarn twist to twist JieQiang JieQiang cover components and of their component parts synthetic fiber and synthetic yarn or Ne and cotton blended yarn. 10 Ne. 110 Z S 38Z 37S 100 100% cotton yarn Ne. 12 Ne. 110 Z S 32Z 31S 130 or 100* Ne. 6 Ne. 20 Z S 90Z 91S120 combed and semi-worsted wool or blended long fiber yarn Nm. 18 Nm. 90 z-s 51W, 110 Nm. 12 Nm. 24 Z minus S 53W Nm. 7 Nm. 12 75 w * 130 Z - S twist JieQiang components used in 100% pure cotton yarn is an ideal, as the main processing for synthetic yarn or blended yarn, yarn and especially when processing special delicate yarn, can be used in the figure 100 twist JieQiang cover, simply replace the twist JieQiang can.