FA503型细纱机
FA503型细纱机是我厂生产的主要产品之一，本机可用于棉及棉型化纤的纯纺或混纺，调换部分零件后，还可适用65mm以下中长纤维。
Model FA503 Ring Spinning Frame is one of our major products,This machine is used for processing cotton and cotton type synthetic fibers,or their biends Medium length synthetic fibers,up to 65mm can be processed on this machine if a few parts are replaced.
 
 主要特征 MAIN FEATURES
车头传动
HEADSTOCK GEARING
车头内的牵伸、捻度、卷绕变换齿轮，均采用统一的模数、孔径和宽度，互相间可以通用。调换一只牵伸齿轮，可以改变机台两侧的总牵伸倍数。
The whole system of draft gearing inside the cover is of strong construction with the assurance of correct transmission.

牵伸装置
DRAFT

牵伸装置采用螺旋弹簧加压的摇架，压力稳定可靠，操作方便。
The drafting roller weighting by spring pendulum arm reliable and easy to operate.

导纱板和钢领板为牵吊式升降，运动平稳，纱管成形能适应高速络筒要求。
The lifting of lappets and ring rails is actuared by means of tapes.so that smooth movement is ensured.The cop building mechanism design has taken the require-ment of high speed cone winding process into consideration.
 
导纱板和钢领板为牵吊式升降，运动平稳，纱管成形能适应高速络筒要求。
The lifting of lappets and ring rails is actuared by means of tapes.so that smooth movement is ensured.The cop building mechanism design has taken the require-ment of high speed cone winding process into consideration.
自动化程度高
HIGH AUTOMATION

1.纺纱过程中，任何时候关车，能自动适应停车。
Whenever the frame is required to stop during spinning the frame can stop automatically at a proper position.
2.如需提前落纱，能使钢领板自动下降及适应停车。
If doffer is required in advance.the ring rails will automatically wind down and stop at a proper position.
3.满管后，钢领板自动下降及自动适应停车。
For full bobbins,the ring rails will down to starting position automatically.
4.开车前能使钢领板自动复位。
While starting the machine,the ring rails will reset themselves at starting position automatically.
5.落纱前能自动接通落纱电源。
Before the doffing,the doffer electric source can be connected cutomatically.
6.开车后低速自动切换高速。
After start of machine,the speed is changed from low to high automatically.