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New Record in Pressure Vessel Fabrication with 28-Meter Cylinder Assembly

Early this month, Openex embarked on a remarkable journey in pressure vessel fabrication. We took on the challenge of fabricating the outer cylinder for a colossal storage tank belonging to a major enterprise. What makes this achievement truly exceptional is the astounding length of the assembled cylinder, which reached a staggering 28 meters, shattering our previous record for the largest cylinder assembly. Today, we proudly announce the successful shipment of the outer cylinder, marking a significant milestone in our journey.

The fabrication of this extraordinary cylinder posed several unique challenges. With a thin wall thickness and an imposing diameter, it required meticulous planning and execution. Moreover, the large ellipticity of the cylinder's outer circumference, irregular straightness, and susceptibility to deformation made this project particularly demanding. Additionally, the post-welding processing of the cylinder presented formidable obstacles due to its difficulty in plasticization.

This massive storage tank comprises 13 cylinders, all sharing the same diameter. The precision of the rolled cylinders is a critical factor influencing the overall quality of the finished product. Openex is proud to have met these challenges head-on, thanks to the exceptional capabilities of our Italian FACCN three-roller rolling equipment and our well-established processing solutions.

storage tank fabrication

Precision in Fabrication

Achieving precision in the fabrication of these massive cylinders is of paramount importance. Any deviation in measurements or inconsistencies in the shape can compromise the integrity and safety of the pressure vessel. Openex's commitment to precision is unwavering, and we are delighted to have earned high praise and recognition from our valued customers.

Our Italian FACCN three-roller rounding equipment is at the heart of our precision fabrication process. It boasts state-of-the-art technology that ensures the highest degree of accuracy in shaping the cylinders. The precision offered by this equipment is indispensable in meeting the exacting standards required for pressure vessel fabrication.

Mature Processing Solutions

In addition to our cutting-edge equipment, Openex has developed mature processing solutions that streamline the fabrication process. These solutions address the challenges posed by thin-walled, large-diameter cylinders with irregularities in shape. Our team of experienced professionals leverages these solutions to achieve consistency, structural integrity, and the highest possible quality.

Customer Satisfaction

At Openex, customer satisfaction is our ultimate goal. We understand that our products play a crucial role in industries such as petroleum, chemical, pharmaceutical, food, paper, and more. Ensuring the safety and reliability of our pressure vessels is not just a business commitment but a moral responsibility.

Our successful completion of this remarkable project underscores our dedication to our customers and our determination to overcome technical challenges. We firmly believe that the quality of our work speaks for itself, and the trust our customers place in us motivates us to continually raise the bar in pressure vessel fabrication.

One-Stop Fabrication Solutions

Openex takes pride in offering comprehensive, one-stop metal fabrication solutions. Our ability to tackle the most complex projects, like the one we've just completed, sets us apart in the industry. With our expertise, advanced equipment, and mature processing solutions, we are poised to deliver more and better services to various industries.


Openex's recent achievement in fabricating a 28-meter outer cylinder for a large storage tank is a testament to our commitment to excellence. We have broken records, pushed boundaries, and delivered quality that exceeds expectations. We are not just a fabrication company; we are a partner in progress for industries that rely on pressure vessels for their operations.

As we look ahead, Openex remains dedicated to innovation, precision, and customer satisfaction. We invite you to explore our services and experience firsthand the difference that sets us apart in the field of pressure vessel fabrication. Your trust is our driving force, and we are excited to continue serving you with the highest level of dedication and expertise.

Choose Openex for your pressure vessel fabrication needs, and together, we'll shape a safer and more reliable future.

About Openex

Openex is home to a full-service, one-stop-shop, contract manufacturing company producing custom large machined parts and fabrications. Our full large fabrication services including large machining, cutting, welding, rolling, punching, braking, testing, painting, and others.
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