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Microdia’s Radio Frequency cross head
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Extrusion of RF high expansion rates requires a perfectly balanced cross head with an excellent temperature distribution.
Numerous trials and tests performed in cooperation with several top
level extrusion lines manufacturers are the base of the Microflex 45
cross head, the best cross head on the market for RF Cable extrusion.
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Microflex 10 for medical tube
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The best option for high precision PVC, PUR, PA, and technological polymers with a maximal die opening of 10 mm.
Comes in 2 versions:
• MICROFLEX 10 single layer.
• MICROFLEX 10 double layer or stripe.
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Features:
• Hardened alloyed steel body combining wear and corrosion resistance.
• Die nut for gum space adjustment.
• Choice of distributors depending on the compound viscosity.
• Two heating zones: heating cartridges for the body, heating sleeve for the die.
• Comprehensive set of handling tools for fast tool change or cleaning.
• Special blank sleeve for single layer extrusion on the double layer head.
• Suitable for multi lumen extrusion.
Main advantages:
• Very short heating time.
• Quick tooling change.
• No adjustment needed prior to starting.
• Fine tuning possible via the MICROFLEX if extreme concentricity is needed.
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Market trend
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High precision medical tubes are more and more in demand, high purity PVC, PUR, PA are among the most popular extruded compounds.
To comply with the extremely high quality standards, numerous homologation trials must be performed before production can be released and even before each production batch start, samples must be taken to insure all the physical parameters of the product are strictly within tolerances.
Testing laboratory and production extrusion specialists unanimously recognize the superiority of MICRODIA’s cross head in terms of handling simplicity, quick set up and precision.
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Customer’s needs.
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Complex and high precision medical tubes are not easy to extrude, every extrusion parameter can have a critical incidence on the product quality.
• Temperature profile.
• Compound temperature.
• Compound mixture.
• Machines speeds.
• Water temperature.
• Water flow.
• Air flow.
• Drying.
Apart of the final product’s mechanical properties like flexibility or stiffness, elongation, surface quality directly depending on the process parameters, the dimensions, outer diameter, wall thickness, concentricity, roundness must comply as well with the technical specification of the tube.
The wish of all engineers involved in the medical tube production field is to have the possibility to focus their attention on the multiple extrusion parameters, forgetting the operations usually needed to satisfy also the dimensional characteristics of the product.
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Microdia’s contribution.
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Engineering
Microdia’s Microflex cross head plays a decisive role in the search for dimensional perfection, giving the correct shape to the compound flowing out of the extruder at the first run without struggle and with practically no adjustments.
A team of experienced designers working with the best 3D software on the market constantly improves the head’s design according to the feedback of Microdia’s own commissioning engineers.
However those continuous upgrades are always made taking in consideration the interests of the numerous customers working with Microdia’s product, what means that the new version will be compatible with the earlier ones in term of:
• Connection with the flange or by pass.
• Center line.
• Tips.
• Dies.
Precision
All the parts are manufactured on high precision CNC machinery in Microdia’s facilities located in Switzerland.
Microdia is the leader of fixed center cross head manufacturer and fixed cross head with fine tuning: the MICROFLEX cross head series.
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