ASTERSA High Quality Solar Thermal Collectors

Faithful to our objective of providing the highest guarantee to our products, we use cutting edge technology and automation in all the manufacturing processes of our solar thermal collectors:
• Copper pipe straightening and cutting
• Flaring in the collector pipes
• End shaping
• Grate mounting and welding
• Hydraulic testing
• Ultrasonic welding of the absorber surface with the grate
• Anodised aluminium cutting and punching




In order to guarantee the correct operation of our collectors, we carry out 100% of the compliance testing at a pressure of 15 bars. Our aim is to:
• Commit ourselves to excellence and to our clients
• Provide a unique service
• Reduce after-sales service and maintenance as much as possible




Astersa s/a works with high quality raw materials in all its versions, with the objective of providing the highest possible guarantee (10 years) and durability to the collectors. Faithful to our commitments , we consider that it is necessary to have raw materials and chemical processes which are toxic-free, 100% recyclable and respectful with the environment.
As selective collection surface, we offer the best choice in the market, thanks to its high absortance (95.3%) and its low emissivity (4.7%). With this we achieve:
• Higher optical performance
• Higher durability of our collectors
• 100% recyclable material

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