#Spinning

2020-11-12

Robust pumps for sophisticated special fibers

At first glance, rowing boats, the Airbus 380, safety equipment and stadium roofing have very little on common. They receive their specific properties as a result of the use of special fibers, among other things: aramid fibers and carbon fibers are processed into special yarns that are frequently deployed as compound materials. These fibers are growing in demand as the world seeks to reduce its reliance on fossil fuels; new solutions are required to reduce weight and replace heavy metallic parts.

Aramid fibers are produced in a highly-chemical process that is extremely aggressive; the acrylic precursor used to manufacture carbon fibers is a different process, but again no less difficult. In these sophisticated processes, the gear metering pumps are not only responsible for the high-precision control of the melt transport; durability, resistance within aggressive environments and cost efficiency also play decisive roles.

Special materials for special tasks

The process, the expected pump lifespan and the maintenance frequency are the decisive factors for choosing the materials from which the pumps and their components are manufactured. For optimum results, Oerlikon Barmag offers solutions that intelligently combine the various materials and the latest technologies.

Pump components made from zirconium oxide ceramic are characterized by their particular lifespan. © 2020 Oerlikon

Average lifespan of gear metering pump components in aramid applications © 2020 Oerlikon

Whether in the case of surfaces with ceramic coatings, gears and shafts featur-ing DLC coatings, pumps made from cobalt alloys (StelliteTM) or robust and durable Oerlikon Barmag hybrid constructions comprising zirconium oxide ceramic and duplex stainless steel – the high-precision ZP- and GM-series pumps are design-optimized depending on the intended use. Various seal systems and customized drive concepts round off the pump program.

With this, Oerlikon Barmag customers have technologically-leading, reliable solutions for the high-precision metering of disparate media in complex processes for all applications at their disposal.

Barmag and Hitech Automation enter into partnership for an auto-doff system for texturing machines

Barmag (Suzhou) Technology Co., Ltd. and Hitech Automation Solutions PVT LTD. of Surat, India, have agreed to an exclusive partnership to jointly market Hitech’s Doffmatic automation solution for Barmag’s proven manual eFK texturing machines. In many texturing facilities, manual doffing processes remain heavily operator-dependent – resulting in issues such as increased scrap, inconsistent quality, and limited productivity.

Oerlikon Manmade Fibers Solutions hosted successful Technology Day 2025 in India

Oerlikon Manmade Fibers Solutions recently hosted its highly anticipated Innovation and Technology Day at the Deltin Hotel in Daman by end of January 2025. The event attracted over 300 participants, including industry experts, partners, and stakeholders, who gathered to explore the latest advancements and trends in the manmade fibers industry in India.

GenuTrace client advisory: Is your cotton supply chain UFLPA ready?

U.S. Customs and Border Protection has released updated operational guidance (CBP Publication No. 5560-0526) expanding its forced labor enforcement framework. The guidance supersedes the original 2022 UFLPA Operational Guidance and now covers all forced labor enforcement authorities — UFLPA, CAATSA, and WROs/Findings — in a single unified document. For cotton importers, the enforcement posture has not softened. It has become more structured, more documented, and more demanding. Learn more about UFLPA.

"We will become a recycling powerhouse"

The textile industry is now in its fourth consecutive year of crisis, while automation, artificial intelligence and recycling are reshaping the rules of the game. In this interview, Rieter CEO Thomas Oetterli discusses the first signs of a market recovery, reflects on his first three years at the helm of the company, explains the integration of Barmag, outlines Rieter’s vision of the fully automated spinning mill and highlights the strategic importance of recycling. In doing so, he explains why the new Rieter Group aims to play a leading role in transforming the textile value chain into a circular economy.

Uster’s new Recycling Opening Index guides spinners to the perfect blend

Uster AFIS 6 now offers the key data for better decisions when blending recycled fibers. Process control is decisive in determining the quality and economic outcome. The new R Recycling Module of AFIS 6 introduces the Recycling Opening Index (ROI), so spinners can optimize their circularity credentials. It was officially launched at ITM 2026 in Istanbul, Türkiye.

Nico Pedretti appointed as Managing Director Graf Group

As of June 1, 2026, Nico Pedretti has assumed the role of Managing Director Graf Group. With more than 20 years of international industrial experience and extensive expertise in Operations, Supply Chain Management, Finance and Controlling, he brings a broad range of leadership and business experience to support Graf’s continued success.

STOLL: Agreement signed for the divestiture of selected assets

In early 2025, KARL MAYER announced its strategic decision to focus on its core business areas of WARP KNITTING, WARP PREPARATION, and TECHNICAL TEXTILES. As part of this move, the flat knitting machine business under the STOLL brand was discontinued and the production site in Reutlingen was closed in October 2025.

TERNAfil wins first place at PitchMiUp Night 2026 in Minden

The RWTH spin-off TERNAfil has developed MAXCarbon, a new high-performance hybrid fibre that combines the mechanical performance of carbon with the temperature and corrosion resistance of ceramic materials. For this development, TERNAfil was awarded first prize at the PitchMiUp Night in Minden on 21 May 2026.