Reasons for being Chosen

In addition to legal inspections, we conduct in-house inspections based on strict standards to establish a thorough quality control system that meets the laws and standards of every country in the world.

In addition to the pressure resistance and airtightness tests specified in the High Pressure Gas Safety Law(Koatsu Hoan Kyokai=KHK), SK CYLINDER conducts various original tests such as X-ray monitor inspections every two hours. All stainless steel cylinders and their welded lines are subjected to X-ray inspection so that only high-quality products are delivered to customers. Furthermore, our unique shot blasting treatment and twice degreasing process have improved our product quality to the next level. We have established a thorough quality control system that meets the laws and standards of Korea, China, and other countries around the world.

Precise in-house inspections using a dedicated X-ray inspection device prevents the occurrence of defects.

SK CYLINDER has installed a specially designed X-ray inspection device. All LP gas cylinders are inspected by X-ray to ensure that there are no welding defects such as blows, pinholes, or center misalignment. For stainless steel welded cylinders, more stringent X-ray inspections are conducted for all units and welded lines. JCSS calibration certificates* have been obtained for various measuring instruments, enabling us to conduct various accurate tests. In addition, we conduct penetrant testing (PT) and other tests to check for cracks in the surface layer, as necessary, to ensure that only high-quality products are delivered to customers through a series of rigorous checks.

* The JCSS calibration certificate is a certificate indicating traceability to national standards conforming to ISO 17025.

Precision tests

  • Pressure resistance test
  • Airtightness test
  • Tensile test
  • Bending test
  • Impact test
  • Crushing test
  • X-ray inspection
  • Penetration testing (PT), etc.

Our unique shot blasting treatment and two thorough degreasing processes are carried out.

Advanced inner surface sandblasting and hot water rinsing are carried out in the manufacturing process of seamless cylinders. In the sandblasting process, our specially designed nozzle enables uniform polishing even down to the neck of the pressure container. For beverage and medical cylinders, in addition to the usual degreasing process, we carry out a second degreasing process in the final stage to thoroughly remove oil that is the source of odors.

Products that have been degreased twice

  • Carbon dioxide cylinders for beverages
  • Medical gas cylinders, etc.

Complying with the laws and standards of each country, including Korea and China, as well as ISO 9001

Our products comply with the laws and standards of each country, which are essential for the manufacture and export of high-pressure gas cylinders. Our high-pressure gas cylinders can be used with confidence in any country, not only in compliance with ISO 9001, the international quality management system standard, but also in compliance with strict national standards around the world, such as Korea and China, where semiconductor production is flourishing.

Certification standards

  • ISO9001
  • KGS in Korea
  • GB5100 in China, etc.