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Crafted by Ningbo Zhengxin (ZX) from high-strength AA6061-T6 aluminum alloy, our DOT medical cylinders offer a seamless and secure containment solution.
Ranging in capacity from 0.28L to 21.4L—including standard industry sizes like M4, M6, M9, MD, and ME—each cylinder undergoes rigorous hydrostatic testing.
Designed with standard medical threads and industry-standard color-coding, they seamlessly integrate into existing North American medical workflows while prioritizing patient safety.
Advantages:
Maximum Portability: Up to 40% lighter than traditional steel cylinders, improving patient mobility and reducing fatigue for first responders.
North American Market Ready: Fully aligned with DOT/TC specifications for immediate deployment in the US and Canadian medical sectors.
Exceptional Durability: Highly corrosion-resistant material guarantees a long service life with minimal maintenance.
Quick Identification: The signature green crown ensures fast, accurate recognition of oxygen during critical emergencies.
Highly Customizable: Optional clear coatings, silkscreen branding, and pre-installed valves/handles are available to support distributors and OEM supply chains.
Custom Cylinder Solutions
Make your cylinders fit your product, brand and target market. ZX supports a wide range of surface finishes, branding options and customized packaging, as well as the development and certification of new cylinder sizes.
Surface Finishes Powder coating, spray painting, shot blasting, anodizing and other finishes | Logo & Branding Customer logo stamping, screen printing, heat-shrink sleeves and labels |
Custom Packaging Standard kraft cartons and customized full-colour cartons | New Cylinder Development Development and certification support for new cylinder sizes and specifications |
Custom Gas Valve Solutions
ZX provides practical valve customization to match different cylinders, gas applications, connections and brand requirements.
Surface Finishes Nickel plating or chrome plating | Branding & Appearance Handwheel caps with customer logos and handwheels in different colours |
Threads & Connections Standard inlet and outlet thread options, as well as threads for dip tube connections | Safety Device Burst disc safety devices based on application requirements |
| Material: | AA6061-T6 |
| Specification: | DOT-3AL compliant & certified |
| Volume: | 0.28L- 21.4L |
| Thread: | ≥M60 with 1.125-12 UNF |
| ＜M60 with 0.750-16 UNF | |
| Finish: | brushed body with green crown (standard finish) |
| clear coating (optional) | |
| Graphic: | label / silkscreen logo (optional) |
| Accessories: | valve / carrying handle installed upon request |
| Model | Work Pressure (bar) | Test Pressure (bar) | Water Volume (l) | O₂ Capacity (cu ft) (l) | Diameter (mm) | Length (mm) | Weight (kg) | Thread | |
| ML6 | 2015 | 300 | 1.2 | 6.0 | 170 | 111.3 | 227 | 1.53 | 0.750-16 UNF |
| M7 | 2015 | 300 | 1.4 | 7.0 | 197 | 111.3 | 255 | 1.66 | 0.750-16 UNF |
| M9 | 2015 | 300 | 1.7 | 8.4 | 239 | 111.3 | 280 | 1.81 | 0.750-16 UNF |
| MD | 2015 | 300 | 2.9 | 14.5 | 411 | 111.3 | 428 | 2.58 | 0.750-16 UNF |
| ME | 2015 | 300 | 4.6 | 22.6 | 641 | 111.3 | 654 | 3.75 | 0.750-16 UNF |
| M2 | 2216 | 300 | 0.3 | 1.7 | 47 | 63.5 | 170 | 0.38 | 0.750-16 UNF |
| M4 | 2216 | 300 | 0.7 | 4.1 | 116 | 81.5 | 235 | 0.87 | 0.750-16 UNF |
| M6 | 2216 | 300 | 1.0 | 5.7 | 162 | 81.5 | 300 | 1.04 | 0.750-16 UNF |
| M22 | 2216 | 300 | 3.9 | 21.4 | 607 | 133.4 | 320 | 3.91 | 0.750-16 UNF |
| M60 | 2216 | 300 | 10.5 | 57.3 | 1622 | 184.2 | 585 | 10.00 | 1.125-12 UNF |
| M90 | 2216 | 300 | 15.7 | 85.9 | 2433 | 184.2 | 831 | 14.21 | 1.125-12 UNF |
| M122 | 2216 | 300 | 21.4 | 116.7 | 3305 | 203.2 | 939 | 18.58 | 1.125-12 UNF |
| M7.6 | 3000 | 300 | 1.0 | 7.6 | 214 | 81.5 | 325 | 1.44 | 1.125-12 UNF |
| M7.7 | 3000 | 300 | 1.0 | 7.7 | 217 | 111.3 | 219 | 1.97 | 1.125-12 UNF |
| M12 | 3000 | 300 | 1.5 | 11.3 | 321 | 111.3 | 290 | 2.48 | 1.125-12 UNF |
| M20 | 3000 | 300 | 2.6 | 19.5 | 553 | 111.3 | 448 | 3.63 | 1.125-12 UNF |
| M32 | 3000 | 300 | 4.1 | 30.5 | 863 | 111.3 | 660 | 5.14 | 1.125-12 UNF |
| M74 | 3000 | 300 | 10.0 | 73.8 | 2091 | 175 | 664 | 13.11 | 1.125-12 UNF |
| Custom dimensions / specifications available upon request | |||||||||
