Rieter R 35: Excellent piecing promises high-quality yarn

Rieters R 35 is fitted with AMIspin, the most reliable and easy semi-automated piecing system.

In todays yarn markets, an inadequate piecing quality alone can cause an otherwise high-quality yarn not being accepted in downstream processing. For the new Rieter R 35 semi-automated rotor spinning machine the renowned AMIspin piecing process has been optimised and is more operator-independent.

The new R 35 semi-automated rotor spinning machine has been designed exactly to meet following needs:

• Higher productivity.
• Better yarn quality.
• Minimised piecing quality variation.
• Effective yarn quality monitoring.
• Reduced energy consumption per kilogram of produced yarn.
• Ergonomic and operator-friendly handling.

With a semi-automated machine, ergonomic and operator-friendly design and ease of the piecing operation are necessary for better machine performance and to secure highest quality and productivity.

Optimal machine working height for any operation: Optimal working conditions are decisive in order to reduce operator errors when cleaning the rotor, doing the piecing preparation or removing yarn faults from the package. For this reason, the R 35 rotor spinning machine has optimal low working height combined with excellent accessibility. This secures the machine efficiency and the yarn quality.

AMIspin – the most reliable and easy semi-automated piecing system: AMIspin is unique for its simplicity and reliability. The handling of AMIspin has been improved by using an individual feed drive for the sliver, applying piecing technology known from other Rieter rotor spinning machines. After preparing the yarn end and cleaning the rotor, the piecing process is launched automatically as soon as the box is closed. As a result the quality, speed and success rate of AMIspin piecings have been improved.

Optimised yarn entry for fast and easy piecing: With the R 35 the insertion of the prepared yarn end into the exit tube has been simplified, because the yarn entry is now from the front (Figure 1). This accelerates the piecing operation and allows reduction of the operator time. It guarantees excellent piecing quality with high value for the yarn users. For the spinner it helps to maintain higher machine efficiency even with high ends down rate and fewer operators.

Individual sliver feeding drive for better piecing quality: Immediately after each yarn break, the single feed drive pulls back the sliver into a protected position, thus ensuring that the piecing always is formed from undamaged fibres. During piecing the individual drive allows more exact sliver feeding to further optimise the appearance and strength of the piecings.

AMIspin quality more operator-independent: With optimised yarn entry, individual drive for sliver feeding and loop compensator on the R 35 rotor spinning machine, piecing quality becomes more operator-independent even with a semi-automatic machines.

Suction Tube ECOrized: Energy costs cut by US $66,600

The theoretically calculated energy-saving potential resulting from use of the Rieter suction tube ECOrized on ring spinning machines proves itself in practice. The Rieter customer Baris in Turkey had 14 ring spinning machines equipped with the innovative suction tube and thus saves around US $66,600 in energy costs per year. The commentary of the customer can be seen as a video on the Rieter website.

A substantial proportion of the costs with yarn production is generated by the energy consumption. Efficient use of energy therefore saves costs and is environmentally-friendly. With the suction tube ECOrized for the ring spinning machines G 32, G 33, G 35 and G 36, the suction power can be reduced by up to 50 per cent. An effect that sustainably lowers energy costs in the spinning mill.

CATEGORIES Allied Equipment and Accessories