When purchasing a ring spinning frame, how high should the spindle speed be, and how to decide if a high-speed model is worth it based on yarn count and fiber?
• For carded cotton below Ne32, keep spindle speed 16,000-18,000 rpm; above 20,000 rpm end-breakage rises sharply.
• For combed fine counts above Ne60, choose 18,000-22,000 rpm with compact spinning unit.
• For synthetic blends, set spindle speed 10%-15% lower than pure cotton due to higher friction.
• High-speed models need inverter spindle and auto-doffing; energy consumption increases 8%-12%.
• Demand end-breakage data per 1,000 spindles per hour on same fiber; below 30 breaks is acceptable.
• For combed fine counts above Ne60, choose 18,000-22,000 rpm with compact spinning unit.
• For synthetic blends, set spindle speed 10%-15% lower than pure cotton due to higher friction.
• High-speed models need inverter spindle and auto-doffing; energy consumption increases 8%-12%.
• Demand end-breakage data per 1,000 spindles per hour on same fiber; below 30 breaks is acceptable.