Rotorcraft combines energy saving and ease of handling for ring spinning components
At ITMA Barcelona, ROTORCRAFT AG of Switzerland defines the future of ring spinning. According to Rotorcraft the basic concept of ring frames will remain as it is. The value of a frame in the market place will largely depend on the spinning components, therefore company has set out to prove to the industry, that Rotorcraft’s product program is amongst leaders in ring spinning components.

Rotorcraft top arm ST3

The innovations presented by Rotorcraft include  newly designed Rotorcraft top arm ST3. Recognizing the fact that modern mills run 365 days a year and unloading top rollers over weekends is therefore no longer necessary, due to a modern spring loaded top arm developed by Rotorcraft. It is the only top arm available in the market which is truly self-aligning, resulting in improved yarn evenness. Rotorcraft’s ST3 also allows easy adaption to varying fiber lengths.

RoLeC spindle

Over the last decade, bobbins became smaller and smaller in order to allow higher spindle speeds. The RoLeC spindle equipped with the patented insert MM 52A, has succeeded in producing spindle bearings small enough to allow wharve diameters of 15 mm. While keeping the same spindle speed all driving elements from electrical motors to shafts, bearings, pulleys and belts run about 20% slower, leading to corresponding substantial power savings. The patented Rotorcraft insert MM52A is the only insert on the market today, which allows spindle wharves with such a small diameter and therefore with lower power consumption than any other ring spindle.

Rotorcraft lubrication beam RoLuB

Rotorcraft lubrication beam RoLuB  allows changing the spindle oil without removing the upper part from its housing. Oil change becomes a clean job. On average, the lifetime of the spindle can be expected to be increased by one fourth. The cost for maintenance is drastically reduced.

New generation of RoCoS

After long and extensive research, Rotorcraft’s mechanical compacting system RoCoS has firmly established itself in the worldwide ring spinning markets. About 80% of all yarns spun on ring frames globally can be compacted by RoCoS at almost no extra cost of production. One can safely assume that power will become more and more expensive. Therefore, pneumatic compacting in the future will only make economic sense for super fine luxury yarns. With RoCoS, compacting spinning is no longer limited to luxury yarns. Innovative RoCoS customers are already using the system for standard yarns, in order to lower yarn production cost by using lower grade cotton and/or reducing the twist and/or reducing the percentage of comber noils.