The Engineered Materials Group of Parker Hannifin presented its extensive range of large-size seals at the 2017 Hanover Fair. Thanks to new manufacturing technologies, Parker Prädifa is now able to offer machined seals made of high-performance polymer materials in diameters up to 4,5 metres, metallic C-Ring in diameters up to 7,6 metres and precision elastomer O-rings in practically any desired diameter.
In a wide range of industries, in addition to average-size and miniaturised equipment, large-scale systems are used that require components and sealing systems matching the size of the equipment. While average sealing systems rarely have diameters larger than 100 mm, diameters of several metres are not uncommon in some sectors. Examples include manufacturing plant and equipment, buildings and pipelines, tunnel construction and mining, energy, high-tech medicine, aerospace and many others.
The production of large seals for challenging applications is not simply a matter of scaling up know-how of traditional seal design and machining. The reason is that XXL sizes not only pose particular handling challenges in the manufacturing process, but do so even earlier, in the design and testing stages.
As a specialist in engineered materials, engineering design and process technology Parker Prädifa offers an extensive portfolio of large-size seals and melded parts made of polymers such as NBR, EPDM, FKM, PTFE and PEEK, as well as metal. Available options include precision O-rings manufactured by vulcanisation in a closed mold using compression or injection molding; XXL seals machined from thermoplastic materials; and metal seals for harsh application conditions.
Read more...Trafo Power Solutions returns to Electra Mining Africa
News
Trafo Power Solutions returns to Electra Mining Africa 2026 with a portfolio that has expanded well beyond dry-type transformers into fully engineered electrical power solutions for mining, industrial and infrastructure operations across Africa.
Read more...Why representation in STEM is crucial
News
Women’s underrepresentation in STEM is a business risk as much as a social one, shrinking an already pressured talent pool. Intentional mentorship and visible leadership pathways are structural necessities, not HR gestures.
Read more...Women shaping engineering at ABB ABB South Africa
News
Two ABB engineers share how curiosity, mentorship and an inclusive culture have shaped their careers, and what they see as the most exciting opportunities for women in engineering across Africa.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version