Product category:
Seals
News Release from: SKF UK | Subject: Elastomeric composite seals
Edited by the Engineeringtalk Editorial
Team on 22 March 2000
Machined seals offer big advantages
Economos are claiming to have taken the lead in the manufacture of elastomeric composite seals through development of their renowned CNC seal machining capability.
Economos are claiming to have taken the lead in the manufacture of elastomeric composite seals through development of their renowned CNC seal machining capability Composite seals are traditionally produced in various of grades of polytetrafluoroethylene, [PTFE], which provide many characteristics necessary for efficient sealing, indeed Economos itself claims to produce class leading products of this type
This article was originally published on Engineeringtalk on 21 Feb 2001 at 8.00am (UK)
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However in certain applications elastomeric versions are preferable due to their better static pressure holding capability and ease of fitting.
Most seal manufacturers employ injection moulding for seal production, but this severely restricts the materials that can be used, the size range available and incurs tooling, none of which applies to the Economos production method.
A wide range of industries use composite seal designs, mostly for external or piston seals utilising ISO 7425 housings, these housings are compact in nature and enable material, space and money to be saved.
The new development, which Economos has introduced, will says the company, give their machined composite seals several major advantages over injection moulding.
Any size of seal up to 2500 mm in diameter and available on Fast-track delivery without tooling charges says Economos.
The seals can be produced from four different versions of their successful ECOPUR polyurethane material.
This material family out performs the commercial grades of elastomers being used by conventional seal manufacturers.
Machined composite seals using ECOPUR can, for example, be specifically tailored for use at either extreme low temperatures, or with media up to 110C.
Other variants can also be employed for low friction requirements as well as for water hydraulics or for specific industry compliances such as the tough US FDA regulations. Request a free brochure from SKF UK ...
Economos are strongly pushing their machined composite seal capability claiming that they provide far more options for the designer than any other competitive offering "There is just no argument about it," commented Paul Chambers, the Economos Sales and Marketing Manager, "Our new machining capability has revolutionised the way composite seals can be used and also boosted their integrity, with the increased material options on offer providing more opportunities for better efficiency add greater cost savings.".
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