HJW-822 is made on the basis of JW-813 machine body with two-nozzle electronic filling system, mainly used for weaving high twisted yarn, spandex wrapped yarn and other similar yarns. The model has been comprehensively upgraded in let-off, shedding, take-up, driving system and structure solidity. Precision of parts’ mutual cooperation has been greatly improved, which makes it run with high speed, stability and continuousness for long. It has excellent performance in weaving high density and small denier fabric. The optional electronic let off (ELO), electronic take up (ETU), slow motion, weft pick variation and speed changing device can satisfy weaving demand for higher quality and more valuable fabrics. This model can be converted to cam/dobby shedding; one-nozzle, three-nozzle, two-pump two-nozzle, two-pump three-nozzle, two-pump four-nozzle to meet all kinds of fabrics.