Compact-Spinning System

Earn more money with a Rieter compact-spinning system
  1. High tenacity and low hairiness
  2. Very good raw material utilization
  3. Significant energy saving

The Rieter compact-spinning system with COMPACTdrum is renowned for consistently high yarn tenacity, low hairiness and maximum flexibility. Customers who opt for this system also benefit from lower production costs compared to a spinning mill with machines from various manufacturers. The cash flow generated demonstrates the outstanding economy of the complete system, which is perfectly synchronized and is supplied from one source.

Compact-spinning system for combed cotton yarn

In this example, a compact-spinning system is used to produce combed cotton yarn with a count of Ne 60 for shirting fabrics. The raw material is a medium staple cotton. A “mixed spinning mill”, which is equipped with machines from two different manufacturers, was used for comparison. The unique yarn characteristics, such as the low hairiness of the compact yarn produced on the ring spinning machine G 38 with the compacting device COMPACTdrum, can lead to a higher yarn price. However, the case study does not take this benefit of using Rieter machines into account, and is instead based on raw material prices and yarn prices for both systems being the same.

Additional cash flow with the Rieter system: around USD 250000 per year

  • Space requirement


  • Raw material utilization


  • Energy consumption


  • Personnel requirement


The Rieter Solution

Basis of calculation

Yarn production: 413 kg/h
Raw material costs: 1.80 USD/kg
Energy costs: 0.074 USD/kWh


The ring spinning machine G 38 with compacting device COMPACTdrum offers spinning mills the highest possible level of flexibility: Switching between ring yarn and compact yarn has never been so easy.

The yarn produced using the compacting device COMPACTdrum impresses thanks to its high tenacity and offers an impressive new dimension in hairiness reduction, particularly for long hairs. This creates new possibilities for spinning mills when it comes to yarn design.

Raw material utilization

Rieter systems can be used to achieve raw-material savings of 1% compared to a “mixed spinning mill”. In addition to the high yarn quality, the reduction in waste is a key factor in an economical compact-spinning process with combed cotton. Low raw material loss is achieved in the blowroom line VARIOline thanks to the optimum combination of microtufts, the function VARIOset and progressive cleaning. On the high-performance cards C 80, the maximum technological cross section and the pre- and post-carding zones that can be equipped individually ensure excellent raw material utilization. High-quality technology components on the comber E 90 allow to reduce noil extraction while retaining the same yarn quality.

Energy consumption

Energy-efficient drive concepts and innovative machine components throughout the process generate energy savings of 10% – all the while maintaining the highest possible levels of productivity. The biggest savings in comparison to other systems are generated by the ring spinning machine G 38 in combination with the compacting device COMPACTdrum.

Space requirement

The high productivity of Rieter machines allows a reduction in the number of machines, thus saving a lot of space compared to a process using a “mixed spinning mill”. In the case study mentioned above, the Rieter spinning mill saves one compact-spinning machine, one autoleveler draw frame, one comber and two cards. Space-saving machine concepts, such as for draw frames, also lead to a compact spinning mill layout. This allows savings of approximately 7% respectively 750 m2– and therefore significantly lower building investments and lower maintenance costs.

Personnel requirement

Thanks to the reduced number of machines and therefore a reduced operator workload, the automatic roving bobbin transport system SERVOtrail and user-friendly machines with a uniform design, 6% fewer personnel are required.

Additional cash flow

Taking raw material utilization, energy and labor costs, interest rates, the sales of yarn and noil and ongoing operations costs into consideration, the total production costs calculated for the Rieter system for the combed compact-spinning process are lower than a solution from a mix of suppliers. This means that customers who invest in the Rieter compact-spinning system as per our example generate an approximately USD 250 000 higher cash flow per year at the same production volume than customers who choose a “mixed spinning mill.”

The system partner

A complete Rieter system is established on Rieter’s expertise throughout the entire spinning process: from processing raw material to yarn. Rieter offers all four end spinning processes and provides professional advice on the optimal spinning technology. Furthermore, experts provide support with yarn marketing and offer a wide range of services. The entire spinning mill is networked and controlled from a single platform with ESSENTIAL – Rieter Digital Spinning Suite. This guarantees high quality and optimal efficiency, both now and in the future.