To make spray cotton, we need a new generation of wool feeder. At present, it is a product with advanced functions, small size, generous appearance and strong efficacy in domestic and foreign markets. Compared with similar products, it can open and feed 15% - 20% more wool per hour. The large roller and several small rollers are used to rotate and engage, and the raw cotton is combed up to ten thousand times at 1400 rpm, Besides, it does not damage the raw cotton; the operation is safe and simple, the continuous operation time is long, and the maintenance rate is low; the seamless steel tube main roller, plus several small rollers for combined operation, is slotted and wound with the imported special rack, and the main roller has been processed with high-speed electronic dynamic balance, the left and right error is only 0.1-1g, so as to ensure that the operation of the machine is more stable and vibration free, and the overall service life of the machine is longer, and the maintenance cost is lower.