Rotor Cup Wear on Recycled and Dirty Cotton

Recycled cotton and dirty cotton can be demanding for open-end rotor spinning. Dust, short fibers, seed fragments and abrasive particles increase friction inside the spinning zone. Over time, that friction can change the rotor cup surface and make maintenance more frequent.

A&I catalog data includes older rotor cup types used for coarse-count and recycled-fiber applications. The key lesson is not that one part fits every case. The key lesson is that fiber condition matters. Mills running recycled cotton should pay close attention to rotor diameter, speed, cleaning intervals and the surface condition of the cup and insert.

For abrasive applications, diamond-coated rotor cups can help extend service life. A&I keeps the public statement to “improved by over 100%” under suitable conditions, without promising a fixed running period. Before ordering, share the machine model, existing cup type, material blend and photos of worn parts. Those details make compatibility matching more reliable.

中文

再生棉和含杂棉工况下的纺杯磨损

再生棉、含杂棉对开端转杯纺工况要求更高。灰尘、短纤、籽屑和磨粒会增加纺纱区内的摩擦，时间一长会改变纺杯表面状态，使维护和更换更加频繁。

A&I 目录中包含用于粗支纱、再生纤维等工况的老式纺杯类型。这里的重点不是某一个配件适合所有场景，而是原料状态非常关键。使用再生棉的纺纱厂，应关注纺杯直径、转速、清洁周期，以及纺杯和嵌件表面磨损状态。

对于高磨损应用，金刚涂层纺杯有助于延长使用寿命。A&I 对外仍只采用“在适用工况下寿命提升一倍以上”的表述，不承诺固定使用周期。询盘前请提供设备型号、现用纺杯类型、原料配比和磨损件照片，这些信息能让兼容匹配更可靠。