Weft storage device, suitable for cotton, wool, hemp, silk, chemical fiber high low count yarn for the loom, gripper support. The application of the weft feeder varieties, weft storage device form factor is an important selection criterion. Space-saving features of the introduction of the coaxial output device after the tension is more prominent. Because not only be greatly reduced installation dimensions, but also significantly improved the device and the loom weft yarn between the control. Weft feeder with automatic speed control; adjustable points yarn; easy Reversible conversion; best energy-saving systems; perfect yarn break sensors; closed around the drum and combined weft yarn sensor. Weft storage device features: 1, 2 automatic speed control, a complete break yarn sensor 3, the completely enclosed yarn around the drum 4, the adjustable sub-yarn 5, simple inversion transform 6, for the latitude rate of up to 1100m / min7, yarn count range: Nm4-8den8, powerful maintenance-free three-phase motor 9, low energy consumption.