At Epidor Seals and Rubber Technology we have developed the new Air CPA piston and its variant Air CPA Slim. This piston is equipped with a low friction seal and different features that make it a quick and easy to assemble solution.
In this blog article, we present the new Air CPA and Air CPA Slim machined pistons. In both cases, the working conditions are for typical pneumatic pressures up to 10 bar, speeds up to 1 m/s and for dry and lubricated air.
Stay tuned and read on to find out more about the advantages of machining sealing parts and seals and this new product with significant attributes.
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Advantages of custom manufacturing
As you already know, at Epidor Seals and Rubber Technology we are specialists in the machining of sealing parts and seals. This service offers a number of benefits over standard solutions. Here are some of its advantages:
- - Manufacture of intermediate sizes that are out of the catalogue.
- - Production of quantities according to requirements (short series).
- - Access to more than 50 materials including elastomers, polyurethanes, filled PTFE's and technical plastics.
- - Shorter delivery times.
- - Possibility to test prototypes on Epidor Seals and Rubber Technology's pneumatic test bench.
More than 55 years of experience guarantee us as a reference in our service of customised sealing, Our customers collaborate with our engineering department in the design of the most suitable gasket or part for each application.
Air CPA Piston
The new Air CPA piston has been developed with a number of factors in mind to make assembly easier. This piston is equipped with a double-acting, low-friction seal with guiding capability, a nut and washer for quick and easy assembly.
The initial range of sizes includes Ø25 sleeves up to Ø100 cylinders, However, our engineers in the Epidor Seals and Rubber Technology Technical Department can develop other diameters on request to meet the required needs of any application.
Another highlight of this piston is the materials used in its machining. The bodies are machined from polyacetal resin (POM) or polyamide (PA), both of which are wear-resistant and offer greater performance and durability.
We can also machine the seal in low hardness (90 Sh A) HPU Soft polyurethane or PTFE formulations with fillers. We have also considered FDA-certified materials for the piston body, friction ring and O-ring. In the following picture you can see our own design:
Air CPA Slim Piston
The Air CPA Slim piston is the “slim” version of the Air CPA piston designed for applications where the housing is small or space is at a premium.
The Air CPA Slim piston is machined from thermoplastic and incorporates a double-acting seal. The piston is fixed to the piston rod of the pneumatic cylinder with a washer and nut. It also has a static seal with the piston rod.
It has the same material configuration as the Air CPA piston and is available in a range of pistons for sleeves from Ø16 to Ø100, Any diameter can be developed on request. Below is an image of the design:
Epidor Seals and Rubber Technology Test Bench
To conclude this article, we refer you to the previously published article where we explained in detail the Epidor Seals and Rubber Technology pneumatic test stand for comparative studies.
Through our team of R&D engineers, we choose to facilitate access to the test bed for those customers looking for to perform real tests and thus draw conclusions on the performance of the part to be tested. In this way we can optimise our designs to the maximum.
Unlike other similar test rigs, the design of two opposing cylinders reduces energy consumption and helps to meet one of our Sustainable Development Goals (SDGs), described in the 2030 Agenda.
We hope that the topics covered in this article have been of interest to you. If you would like to know more or have any related queries, contact our expert watertightness team. We will be happy to answer all your questions.