Oxygen Cylinder

Hot sale 8L 10L 15L 40L 50L Oxygen Cylinder

 Core advantage: Focusing on the core performance of steel cylinders

-Seamless integrated molding, excellent pressure resistance: The steel cylinder is made of high-quality special alloy steel as raw material, and through the process of integral hot extrusion and precision cold rolling forming, the structure design of the steel cylinder without welds is achieved. This core process completely avoids the industry pain points of stress concentration and insufficient pressure resistance at the weld seam, making the rated working pressure of the steel cylinder reach 15MPa (conventional specification), and the burst pressure not less than 37.5MPa, far exceeding the industry average standard. It can safely carry high-pressure compressed oxygen and eliminate the risk of leakage and explosion under high pressure.

-High quality raw material selection greatly improves durability: Steel cylinders are made of high-strength, corrosion-resistant specialized steel such as 37Mn and 34CrMo4. The raw materials undergo strict chemical composition testing and mechanical performance testing to ensure that the steel cylinders have excellent fatigue resistance, corrosion resistance, and low-temperature adaptability. Under normal use and maintenance conditions, the designed service life of the steel cylinder is up to 15 years, far exceeding that of ordinary welded gas cylinders, significantly reducing the cost of replacement and maintenance frequency for users.

-Precise size control and strong adaptability: High precision control of steel cylinder size is achieved through CNC machining equipment, with a roundness error of ≤ 0.5% and a wall thickness uniformity deviation of ≤± 5%. This ensures that the steel cylinder is perfectly compatible with various oxygen filling equipment, pressure reducing valves, and pipeline systems, resulting in higher filling efficiency and better connection sealing. The standard specifications include 40L (mainstream industrial/medical), 10L (portable emergency), 80L (large industrial use), etc., and special volume specifications can be customized according to user needs.

-Comprehensive safety design, more reassuring use: The steel cylinder integrates multiple safety protection structures, including a bottle valve protection cover (anti-collision, anti valve stem damage), bursting disc (automatic overpressure relief), and fusible alloy plug (safe pressure relief in high temperature environments) triple safety devices, forming a full scene safety protection system; The surface of the bottle is coated with electrostatic spraying technology, which is evenly wear-resistant and rust resistant. At the same time, warning signs such as "oxygen" and "no grease" are clearly marked, as well as key information such as the cylinder number, production date, inspection cycle, etc., to ensure safety in all aspects from structure to labeling.

 Key Process: Casting High Quality Core of Steel Cylinder

1. Raw material purification and testing

The selected special alloy steel raw materials undergo processes such as vacuum degassing and refining outside the furnace to remove impurity elements (such as sulfur and phosphorus) and gas impurities, ensuring the purity of the steel; Before raw materials are stored, they must undergo 12 rigorous tests including spectral analysis, tensile testing, and impact testing. Unqualified raw materials will not be used to ensure the quality of steel cylinders from the source.

2. Seamless molding process

Adopting the integrated process of "hot extrusion forming+cold rolling wall reduction": firstly, the steel billet is heated to a plastic state above 1200 ℃, and then hot extruded into a hollow bottle blank through a mold; Through multiple passes of cold rolling to reduce the wall thickness, precise control of the bottle wall thickness and outer diameter size is achieved, ultimately forming a seamless and smooth inner wall bottle structure. This process refines the metal grains of the steel cylinder, stabilizes its mechanical properties, and increases its compressive strength by more than 30% compared to welded gas cylinders.

3. Heat treatment and surface treatment

After the bottle body is formed, it undergoes quenching and tempering heat treatment (quenching+high-temperature tempering) to eliminate processing stress, improve the toughness and fatigue resistance of the steel cylinder; The surface of the steel cylinder is treated with sandblasting rust removal and electrostatic spraying technology. The coating is made of weather resistant epoxy resin paint, which has strong adhesion, UV resistance, acid and alkali corrosion resistance, and can adapt to various harsh storage environments such as outdoor, humid, and high temperature.

4. Complete inspection of finished products

Before leaving the factory, each steel cylinder must undergo rigorous tests such as hydrostatic testing (to test pressure resistance), air tightness testing (to detect leaks), ultrasonic testing (to detect internal defects), magnetic particle testing (to detect surface defects), weight and volume testing, etc. After passing the tests, a product qualification certificate and a supervision certificate will be issued to ensure that each steel cylinder leaving the factory meets national safety standards.

 Applicable scenarios: Adapt to the diverse oxygen usage needs

-In the field of medical emergency, 40L, 10L and other specifications of oxygen cylinders are suitable for hospital oxygen therapy and emergency vehicle oxygen supply scenarios. The seamless structure and high sealing ensure that oxygen purity is not contaminated, and the stable pressure resistance ensures continuous oxygen supply during emergency procedures. It is the core carrier of medical oxygen supply systems.

-In the field of industrial manufacturing, 80L and 40L large volume oxygen cylinders are widely used in industrial scenarios such as steel smelting, metal welding (oxyacetylene welding), and glass manufacturing. They can store high-pressure oxygen for processes such as combustion assistance and oxidation reactions; Excellent durability and corrosion resistance adapt to complex environments in industrial workshops, reducing operation and maintenance costs.

-In the field of scientific research experiments, high-precision seamless steel cylinders can be used for the storage and transportation of high-purity oxygen in laboratories. The inner wall is smooth and free of impurities, avoiding contamination of high-purity oxygen and ensuring the accuracy of experimental data; Suitable for various experimental oxygen pipeline systems, flexible and convenient to use.

-Outdoor and special scenarios: Portable steel cylinders of 10L and below can be used for high-altitude oxygen supply, mining emergency, diving oxygen supply and other scenarios. The lightweight design (reducing weight by 15% compared to welded gas cylinders of the same volume) and high-strength structure balance portability and safety, meeting the needs of outdoor mobile oxygen supply.

 Product specifications and technical parameters

Note: Design and production can be carried out according to customer requirements

Safety usage and maintenance standards

Important reminder: Oxygen is a combustion supporting gas, and the use and maintenance of steel cylinders must strictly comply with the following regulations to eliminate safety hazards:

-Oxygen cylinders must not be placed near sources of fire or heat (at least 10 meters away from open flames), and must not be exposed to direct sunlight. The storage environment temperature should not exceed 40 ℃;

-Before using oxygen cylinders, it is necessary to check whether the cylinder valves, pressure reducing valves, and pipeline connections are sealed. It is strictly prohibited for grease to come into contact with the cylinder valves and oxygen pipelines (grease and high-pressure oxygen contact can easily cause combustion and explosion);

-Oxygen cylinders should be placed upright and securely fixed, handled with care during transportation, and collision or knocking are strictly prohibited. The cylinder valve protective cover should be installed in place throughout the entire process;

-Oxygen cylinders need to be inspected regularly (once every 3 years after the first use, and once every 2 years after more than 10 years of use). Cylinders that have not been inspected or have failed inspection are strictly prohibited from use;

-Oxygen filling must be carried out by qualified professional institutions, and the filling pressure must not exceed the rated working pressure of the steel cylinder. Overfilling is strictly prohibited.

 Quality assurance and service commitment

We strictly follow the ISO9001 quality management system, achieving full process quality control from raw material procurement, production and processing to finished product delivery. Each steel cylinder is equipped with a complete product file (including raw material testing report, production process record, and finished product testing report), supporting traceability query. At the same time, we provide professional pre-sales consultation (assisting users in selection), in sales guidance (filling and usage training), and after-sales maintenance (regular inspection reminders, troubleshooting) services to ensure the safe and efficient use of products by users.

Choosing our seamless high-pressure oxygen cylinders means choosing a high-quality, safe, and reliable oxygen storage solution. Looking forward to working with you to provide solid hardware support for various oxygen application scenarios!