Ringspinnmaschine G 38

Latest G 38 has the following new features:

• a new cop transport SERVOdisc
• the short-balloon setting
• the High-Speed package (optional)
• a faster doffer (optional)
• a new HMI
• air-cooled drafting motors

The further development of the Rieter ring and compact-spinning machines with the High-Speed Package yields enormous benefits to the customer in terms of productivity, flexibility, and energy savings. The High-Speed Package consists of three components that enable maximum spindle speeds.

1. The high-precision spindle LENA 28
2. A smaller ring with a diameter of just 34 mm which reduces traveler speed and opens up potential for an increase in spindle rotation
3. A tube with a smaller bottom inner diameter (DUI) to get the the same yarn weight on the tube and to ensure the number of doffing processes remains the same.

With a delivery speed of up to 40 m/min, the G 38 with the High-Speed Package produces 12% more yarn.

The short-balloon setting is standard for new machines and can also be ordered as an upgrade for already installed machines.

Trials at spinning mills showed that this brings advantages in terms of up to 10% less ends down rates in average and longer traveler lifetime. Alternatively, the ends down rate can be kept constant, and instead the spindle speed can be increased by 3 to 6%. With an 8% longer traveler lifetime spinning mills save maintenance costs and reduce downtimes.
 

Yes, the optional VARIOspin drive system for slub yarn production is completely integrated into the fully electronic version, with a separate panel for easy operation and design.

With the core yarn devices, soft, hard, and dual core yarns can be produced. The devices work with a traversing guide roll for the filament. The traversing system for the filament is aligned with the traversing system of the roving.

To produce a twin yarn, two rovings must run to one spinning position. In the drafting system, both are drafted separately. The rovings are then twisted together in the spinning triangle.

Rieter offers a full package of components especially for man-made fibers like SERVOgrip knife, bottom rollers with a larger diameter, and reinforced separators. It is a modular set. The individual elements can be configured based on customer requirements. The man-made fiber package improves spinning performance for yarns made of man-made fibers and blends.
The bottom rollers have a larger diameter and improve the running characteristics of the machine when long man-made fibers are used.

ROBOspin is the piecing robot for Rieter ring and compact-spinning machines. One robot per machine side repairs ends down that occur while the machine is running or during doffing. The robot receives information about the position of the ends down from the integrated individual spindle monitoring (ISM).