**Public Company Information:** NASDAQ: ADSK **DUBAI, UAE & DOHA, Qatar—(BUSINESS WIRE)—** Autodesk, Inc. (NASDAQ: ADSK), a global leader in 3D design, engineering, and entertainment software, today announced that Qatar Rail has selected the company to provide Building Information Modeling (BIM) services in Qatar. This collaboration marks a significant milestone as Qatar Rail works toward constructing a state-of-the-art integrated railway network. The signing ceremony took place in Doha and was attended by Eng. Saad Ahmed Al Muhannadi, CEO of Qatar Rail, and Callan Carpenter, Vice President of Global Services at Autodesk. Qatar Rail is tasked with designing, building, commissioning, operating, and maintaining the entire rail network in Qatar. Its mandate aligns closely with the Qatar National Vision, which seeks to achieve sustainable development and enhance the quality of life for residents by 2030. To achieve this vision, Qatar Rail has chosen Autodesk's BIM solutions and expertise, leveraging cutting-edge technology to drive forward ambitious railway infrastructure projects. Through its consulting team, Autodesk will guide Qatar Rail in implementing BIM technologies and practices, aiming to reduce overall project timelines and costs while minimizing rework and miscommunication. Over the next three years, Qatar Rail will utilize multiple services provided by Autodesk. These include BIM standards, quality control frameworks, and organizational integration. Autodesk will also establish a technology platform tailored for Qatar Rail, offering training, support, and collaborative tools to the assigned staff. Furthermore, the company will define specific BIM standards and processes for the railway project, laying the groundwork for future contracts. "Implementing a robust BIM process can yield substantial benefits for infrastructure owners like Qatar Rail, spanning design, construction, commissioning, and ongoing operations," said Callan Carpenter, Vice President of Global Services at Autodesk. "We’re thrilled to be Qatar Rail’s partner in achieving these goals. Their adoption of BIM underscores their commitment to excellence in realizing the Qatar 2030 vision." Louay Dahmash, Head of Autodesk Middle East, added, "We’re excited to support Qatar Rail in developing a world-class railway infrastructure network. Modern BIM technology will help mitigate conflicts, improve project quality, and ensure predictable outcomes. As pioneers in BIM solutions, we’re fully prepared to assist Qatar Rail in delivering impactful projects." The GCC region currently boasts civil construction projects valued at $1.3 trillion, with $935 billion already underway. According to MEED, BIM technologies from companies like Autodesk can significantly enhance the management and execution of such large-scale projects. BIM offers intelligent, model-centric workflows that enable faster, more cost-effective, and environmentally friendly infrastructure development. **About Qatar Rail:** Established in 2011, Qatar Rail is responsible for owning and managing the nation’s rail network. It oversees the design, construction, commissioning, operation, and maintenance of all rail systems. This mission is deeply rooted in the Qatar National Vision, which envisions Qatar as an advanced society by 2030. The planned railways aim to support this vision by providing an efficient, eco-friendly public transit system. Qatar Rail is spearheading the Qatar Rail Development Program (QRDP), which includes four major rail initiatives. **About Autodesk:** Autodesk empowers individuals to imagine, design, and create a better world. From architects and engineers to students and artists, millions use Autodesk software to push boundaries and solve complex challenges. For more information, visit [autodesk.com](https://www.autodesk.com/) or follow @autodesk. All brand names, product names, and trademarks are the property of their respective owners. Specifications and offerings may change without notice. © 2023 Autodesk, Inc. All rights reserved. **Contact:** Autodesk, Inc. Madhurjya Kotoky +91 987 360 9144 madhurjya@autodesk.com --- *This announcement reflects our collective efforts to build a smarter future for Qatar and beyond.*

Extrusion Parallel Twin Screw Barrel

Twin screw extrusion


Simply described, the twin-screw extruder is a machine consisting of two co-penetrating and self-cleaning identical screws which are mounted on shafts and rotate in the same direction in a fixed closed housing called [barrel" . The twin-screw extruders operate continuously with very short residence times.

The parallel twin screw and the conical twin screw

According to whether the screw axis is parallel or not, the twin screws can be divided into the conical twin screw and the parallel twin screw, where the parallel twin screws are divided into fully intermeshing type, partly intermeshing type, non-engaged type, etc. In the case of parallel screws, the feed end and the die end have the same diameter.

The diameter of the screws in the conical twin-screw extruder is larger at the feed end and smaller at the die end.

Extrusion Parallel Twin Screw Barrel,Parallel Twin Screw Barrel,Twin Screw Parallel,Parallel Twin Screw

Ningbo Jinyi Precision Machinery Co., Ltd. , https://www.jinyi-machinery.com