--- title: Automatic Welding with Techint on Collahuasi Pipeline Project description: Techint completed the Collahuasi Pipeline Project in Chile using the Qapqa PWT Auto XCS advanced automatic welding technology. --- [info@qapqa.com](mailto:info@qapqa.com)[Linkedin](https://www.linkedin.com/company/qapqa/)[+31 (0) 321 38 66 77](tel:+31(0)321386677)[Contact us](https://qapqa.com/contact-us/) [Contact us](https://qapqa.com/contact-us/)[info@qapqa.com](mailto:info@qapqa.com)[+31 (0) 321 386 677](tel:+31(0)321386677)[Linkedin](https://www.linkedin.com/company/qapqa/)[YouTube](https://www.youtube.com/@QapqaGroup) [![Qapqa-logo-CMYK\_incl JS kleur](https://qapqa.com/hs-fs/hubfs/Qapqa-logo-CMYK_incl%20JS%20kleur.png?width=1894&height=816&name=Qapqa-logo-CMYK_incl%20JS%20kleur.png "Qapqa-logo-CMYK_incl JS kleur")](https://qapqa.com/) [![Qapqa joining solutions automatic welding technology logo grey orange](https://qapqa.com/hs-fs/hubfs/Qapqa-logo-CMYK_incl%20JS%20kleur.png?width=1894&height=816&name=Qapqa-logo-CMYK_incl%20JS%20kleur.png "Qapqa joining solutions automatic welding technology logo grey orange")](https://qapqa.com/) - [Services](https://qapqa.com/services) - [Equipment](https://qapqa.com/equipment) - [Projects](https://qapqa.com/references/) - [Reference letters](https://qapqa.com/reference-letters) - [Solutions](https://qapqa.com/solutions/) - [Industries](https://qapqa.com/industries) - [News](https://qapqa.com/news-events) - [About us](https://qapqa.com/about-us/) [Contact](https://qapqa.com/contact-us/) [Contact](https://qapqa.com/contact-us/) - [Services](https://qapqa.com/services) - [Equipment](https://qapqa.com/equipment) - [Projects](https://qapqa.com/references/) - [Reference letters](https://qapqa.com/reference-letters) - [Solutions](https://qapqa.com/solutions/) - [Industries](https://qapqa.com/industries) - [News](https://qapqa.com/news-events) - [About us](https://qapqa.com/about-us/) [Contact](https://qapqa.com/contact-us/) # Techint - Collahuasi pipeline project ![Company](https://qapqa.com/hubfs/svg-gobbler.svg) **Company:** Techint Company: Techint ![Type](https://qapqa.com/hubfs/svg-gobbler%20(3).svg) **Type:** For copper mine Type: For copper mine ![Country](https://qapqa.com/hubfs/svg-gobbler%20(1).svg) **Country:** Chile Country: Chile ![svg-gobbler (6)](https://qapqa.com/hubfs/svg-gobbler%20(6).svg) **Project:** Collahuasi pipeline project Project: Collahuasi pipeline project ![svg-gobbler (2)](https://qapqa.com/hubfs/svg-gobbler%20(2).svg) **Material:** X70 Material: X70 ![client](https://qapqa.com/hubfs/Qapqa_April2024/images/svg-gobbler%20(4).svg) **Client:** SCM Client: SCM ![diameter icon](https://qapqa.com/hubfs/diameter%20icon.svg) **Diameter:** 44''  **WT:** 13 - 27mm   Diameter: 44'' WT: 13 - 27mm ![distance](https://qapqa.com/hubfs/Qapqa_April2024/images/svg-gobbler%20(5).svg) **Distance:** 220km Distance: 220km Characteristics - Automatic welding of the root-pass GMAW-RMD without copper-backing. - Filling/ capping with Advanced Pulse (P-GMAW). - **PQT,AUT Validation** and **ECA** for a **194km 44"** pipeline project with 7 wall thicknesses ranging **up to 27mm** ## Techint executed construction on the Collahuasi Pipeline Project **Techint** was awarded the **Collahuasi Pipeline Project** in **Chile**, providing a strategic upgrade to the transport of copper concentrate and process water for the [Collahuasi mining operations](https://www.collahuasi.cl/en/que-hacemos/nuestra-operacion/). This high-altitude pipeline system plays a vital role in ensuring reliable operations for one of the world’s largest copper mines, located in the Tarapacá Region of northern Chile. The project required advanced [automatic welding](https://qapqa.com/equipment/xcs-welding-system/) technology to deliver high-quality joints under extreme environmental conditions. ## About Techint **Techint** is a leading global construction and engineering company with a strong track record in **oil & gas, mining, and infrastructure projects**. With extensive experience across Latin America, Techint provides **engineering, procurement, construction, commissioning, and maintenance** services. The company emphasizes **innovation, safety, and efficiency** to deliver complex projects in demanding environments. ## [Collahuasi Pipeline Project](https://www.techint.com/en/news/2025/interconexion-collahuasi-mine) The **Collahuasi Pipeline Project** is a **critical infrastructure development** designed to support mining operations at extreme altitudes above 4,000 meters. The project required not only advanced engineering but also logistical excellence to manage workforce safety and material transport in one of the most challenging terrains in South America. Key features and technical highlights include: - **High-altitude construction** at over 4,000m above sea level, requiring special planning for worker health and equipment performance. - Installation of **large-diameter pipelines** to transport copper concentrate and process water across mountainous terrain. - Use of **automatic welding systems** to guarantee precision and quality in extreme weather conditions with low oxygen levels. - **Complex logistics** to transport pipe materials and heavy equipment through narrow and steep access routes. - Strict **safety and environmental compliance** due to the project’s proximity to fragile Andean ecosystems. Through the combination of **Techint’s expertise** and [**advanced automatic welding technology**](https://qapqa.com/equipment), the Collahuasi Pipeline Project enhances the efficiency and reliability of copper mining operations in Chile. This development demonstrates the ability to execute **large-scale energy and mining infrastructure** under extreme environmental conditions, reinforcing Techint’s reputation as a global leader in complex EPC projects. [![qapqa techint collahuasi pipeline](https://qapqa.com/hs-fs/hubfs/qapqa%20techint%20collahuasi%20pipeline.webp?width=1500&height=890&name=qapqa%20techint%20collahuasi%20pipeline.webp)](https://qapqa.com/hubfs/qapqa%20techint%20collahuasi%20pipeline.webp) [![techint qapqa pipeline collahuasi](https://qapqa.com/hs-fs/hubfs/techint%20qapqa%20pipeline%20collahuasi.webp?width=1500&height=890&name=techint%20qapqa%20pipeline%20collahuasi.webp)](https://qapqa.com/hubfs/techint%20qapqa%20pipeline%20collahuasi.webp) [![techint qapqa collahuasi pipeline](https://qapqa.com/hs-fs/hubfs/techint%20qapqa%20collahuasi%20pipeline.webp?width=1500&height=890&name=techint%20qapqa%20collahuasi%20pipeline.webp)](https://qapqa.com/hubfs/techint%20qapqa%20collahuasi%20pipeline.webp) [![qapqa techint pipeline collahuasi](https://qapqa.com/hs-fs/hubfs/qapqa%20techint%20pipeline%20%20collahuasi.webp?width=1500&height=890&name=qapqa%20techint%20pipeline%20%20collahuasi.webp)](https://qapqa.com/hubfs/qapqa%20techint%20pipeline%20%20collahuasi.webp) [![Qapqa member of International Pipe Line & Offshore Contractors Association](https://qapqa.com/hs-fs/hubfs/IPLOCA%20Web%20Square%2050x50.png?width=50&height=50&name=IPLOCA%20Web%20Square%2050x50.png)](https://www.iploca.com/members/qapqa-group-b-v/) [![tuv cert logo](https://qapqa.com/hs-fs/hubfs/tuv%20cert%20logo.webp?width=50&height=50&name=tuv%20cert%20logo.webp)](https://www.tuv-nord.com/) ![PWT Qapqa brand](https://qapqa.com/hs-fs/hubfs/Qapqa_April2024/images/PWT-logo-wit-shade.png?width=50&height=50&name=PWT-logo-wit-shade.png) --- [![qapqa linkedin ](https://qapqa.com/hs-fs/hubfs/qapqa-linkedin-300x64.png?width=125&height=27&name=qapqa-linkedin-300x64.png)](https://www.linkedin.com/company/qapqa-bv/) [![qapqa youtbue](https://qapqa.com/hs-fs/hubfs/qapqa-youtbue-300x64.png?width=125&height=27&name=qapqa-youtbue-300x64.png)](https://www.youtube.com/@Qapqagroup) **Headquarters**  Qapqa B.V. De Amer 24 8253 RC Dronten The Netherlands **E.** [info@qapqa.com](mailto:info@qapqa.com) **T.** [+31 (0) 321 386 677](tel:+31%20(0)%20321%2038%2066%2077) **Production and R&D**  Qapqa Italy S.r.l. Via Salvo d’Acquisto 1 26862 Guardamiglio (LO) Italy **E.** [info.it@qapqa.com](mailto:info.it@qapqa.com) **T.** [+39 037 740 0038](tel:+39%20037%20740%200038) [Disclaimer](https://qapqa.com/disclaimer/) | [Privacy statement](https://qapqa.com/hubfs/Qapqa_April2024/pdfs/Privacy%20Statement%20Qapqa%20Group%2018-06-2024.pdf) © 2024 Qapqa B.V. All rights reserved ```json { "@context" : "https://schema.org", "@type" : "Organization", "address" : { "@type" : "PostalAddress", "addressCountry" : "NL", "addressLocality" : "Dronten", "postalCode" : "8253 RC", "streetAddress" : "De Amer 24" }, "contactPoint" : { "@type" : "ContactPoint", "contactType" : "customer service", "telephone" : "+31-321-386677" }, "description" : "Specialized pipeline welding subcontractor providing automatic welding systems, weld crews and full service support for oil, gas and water projects.", "logo" : "https://qapqa.com/hs-fs/hubfs/Qapqa-logo-CMYK_incl%20JS%20kleur.png", "name" : "Qapqa B.V.", "sameAs" : [ "https://www.linkedin.com/company/qapqa-bv/", "https://www.youtube.com/@Qapqagroup" ], "url" : "https://qapqa.com" } ```