. Spun yarn roller:
The roller of our company is made of special high quality carbon steel produced by famous steel plant and through unique technology, modernized special produce equipment, digital control machinery and processing center. Our company owns precision equipments such as the whole set of thermal treatment equipment, surface treatment equipment, all kinds of world-class precision processing equipment. The surface of roller is quenched by high frequency induction current and plated with hard chromium. Therefore, its surface is very smooth, no bur, its accuracy and wear resistance are very high, no fiber grasped. When working, it is stable and no bends, no deformation.

Spun yarn roller of Hengsheng is applicable to:
FA502, FA503, FA504, FA505, FA506, FA507, FA508, FA514, FA518, FA528, EJ128, EJ517, EJm128A, EJm128JC, A5132, A513, A513w, A515A series models

Roving roller of Hengsheng is applicable to:
A453, A454, A456, A458, A401 series models.