15‑Liter Aluminum Medical Oxygen Cylinder
| Specially designed for hospital groups, ambulance fleets, clinic chains and elderly care institutions
Provide reliable large‑capacity lightweight medical oxygen storage solutions for hospital groups, ambulance fleets, clinic chains and group elderly‑care institutions. Solve core challenges including central oxygen pipeline backup, long‑time emergency patient transfer, and unified asset management across multi‑branch medical facilities where stable continuous oxygen supply is essential. Holding ISO 7866 and DOT‑3AL international certifications, it supports bulk purchasing and OEM customization of cylinder coating colors, laser‑engraved institutional logos and export‑standard packaging.
Safety and Compliance
Each gas cylinder undergoes 100% water pressure testing, ultrasonic flaw detection and air tightness testing, and is accompanied by a traceable third-party certification report to ensure absolute safety.
Lightweight design
Compared with traditional gas cylinders, the weight is reduced by 30% to 40%, significantly lowering logistics costs and the operational load on workers.
Deep customization service
Supports OEM/ODM based on your filling gas, production line interface, and brand logo, including all-round customization in color, valves, size and packaging.
One-stop support
We offer full-cycle services ranging from technical selection consultation, compliance guidance to after-sales maintenance. Our professional engineering team is your strong backing.
| Drawing No. | Outside Diameter | Water Capacity | Length | Weight | Service Pressure | Test Pressure | Specification | ||||
| mm | in | liters | lbs | mm | in | kgs | lbs | bar/psi | bar/psi | ||
| MS-111-250-H-01 (1.9～4.6)L |
111 | 4.37 | 1.9 | 4.19 | 335.5 | 13.21 | 2.3 | 5.07 | 166.6/2415 | 250/3625 | PED |
| 2.97 | 6.55 | 473 | 18.62 | 3.1 | 6.83 | ||||||
| 4.6 | 10.14 | 695 | 27.36 | 4.4 | 9.7 | ||||||
| MS-140-250-H-01 (4.0～9.6)L |
140 | 5.51 | 4 | 8.82 | 420 | 16.54 | 4.5 | 9.92 | |||
| 6 | 13.23 | 595 | 23.43 | 6.1 | 13.45 | ||||||
| 9.6 | 21.16 | 890 | 35.04 | 8.7 | 19.18 | ||||||
| MS-111-300-H-01 (2～4.5)L |
111 | 4.37 | 2 | 4.41 | 359 | 14.13 | 2.8 | 6.17 | 200/2900 | 300/4350 | TPED |
| 3 | 6.61 | 500 | 19.69 | 3.77 | 8.31 | ||||||
| 4 | 8.82 | 640 | 25.2 | 4.27 | 9.41 | ||||||
| 4.5 | 9.92 | 708 | 27.87 | 4.74 | 10.45 | ||||||
| MS-140-300-H-01 (4～11)L |
140 | 5.51 | 4 | 8.82 | 453 | 17.83 | 5.59 | 12.32 | |||
| 5 | 11.02 | 541 | 21.3 | 6.54 | 14.42 | ||||||
| 5.7 | 12.57 | 603 | 23.74 | 7.2 | 15.87 | ||||||
| 7 | 15.43 | 716 | 28.19 | 8.43 | 18.58 | ||||||
| 10 | 22.05 | 980 | 38.58 | 11.29 | 24.89 | ||||||
| 11 | 24.25 | 1068 | 42.05 | 12.24 | 26.98 | ||||||
| MS-140-15-H-01 (0.3～0.9)L |
140 | 5.51 | 3 | 6.61 | 339 | 13.35 | 3.7 | 8.16 | 150/2175 | 225/3263 | GB/T11640 |
| 4 | 8.82 | 420 | 16.54 | 4.5 | 9.92 | ||||||
| 5 | 11.02 | 502 | 19.76 | 5.1 | 11.24 | ||||||
| 6 | 13.23 | 585 | 23.03 | 5.8 | 12.79 | ||||||
| 7 | 15.43 | 665 | 26.18 | 6.5 | 14.33 | ||||||
| 8 | 17.64 | 745 | 29.33 | 7.2 | 15.87 | ||||||
| MS-111-232-H-01 (2.73～5.07)L |
111 | 4.37 | 2.73 | 6.02 | 420 | 16.5 | 2.5 | 5.5 | 139/2015 | 232/3364 | DOT-3AL |
| 3.9 | 8.6 | 570 | 22.4 | 3.3 | 7.3 | ||||||
| 5.07 | 11.18 | 720 | 28.3 | 4 | 8.8 | ||||||
OEM/ODM customization capability - integrating products into your brand and system
Our customized services cover four major dimensions
• Customized specifications: Volume, diameter, height, valve opening type - within the safety standard range, adjust as needed
• Customized appearance: Bottle body color, shoulder color matching, enterprise LOGO, product label - Let the gas cylinder become your mobile billboard
• Customized identification: Laser engraving, screen printing, permanent coding - achieving full life cycle traceability management
• Customized packaging: Exclusive packaging solutions, pallet specifications, and shipping mark designs - tailored to your warehousing and logistics systems
From sample confirmation to batch delivery, we offer one-on-one dedicated account manager coordination to ensure that every customized detail is precisely implemented.
Scene One: Large Hospital Groups & Multi-Branch Ward Backup
Traditional steel large oxygen cylinders are heavy and cumbersome. Hospitals with dozens of wards need to stock massive quantities for central pipeline maintenance, emergency power outages and peak oxygen demand. Steel tanks occupy huge warehouse space, increase nursing staff's transport labor, and easily generate internal rust that pollutes medical oxygen. Mixed cylinder sizes bring chaotic asset inventory statistics for hospital material management departments, while scattered small retail orders waste factory production capacity and cut bulk profit margins. Midstar 15L aviation aluminum oxygen cylinder cuts weight by 35% versus equal-capacity steel tanks, allowing single nurses to move and deploy multiple units effortlessly. Its large storage capacity extends continuous oxygen supply time, serving as reliable ward backup to build a dual safety system of central pipeline + bulk portable oxygen. Uniform unified specifications simplify centralized stock management across emergency rooms, ICUs and general wards of branch hospitals. Food-grade anti-corrosion inner lining guarantees pure medical oxygen, and foolproof medical valve design eliminates misoperation risks for rotating medical teams. We support batch OEM color coating and institutional logo engraving for unified asset marking across the whole hospital group.
Scene Two: Ambulance Fleets & Imaging MRI Departments
Steel oxygen cylinders are magnetic, forbidden from entering MRI scanning suites. Critically ill oxygen-dependent patients must pause oxygen supply before scans, creating severe life safety hazards during cross-department transfers and emergency transports. Heavy steel tanks increase ambulance vehicle load, raise fuel costs and take up limited carriage rescue space. Unmarked mixed-spec cylinders make regular asset counting and maintenance extremely difficult for EMS fleet management teams. Midstar 15L fully non-magnetic aluminum cylinder can safely enter MRI rooms without scan distortion or equipment damage. Large oxygen capacity meets long-duration oxygen demand for critical patients during long-distance emergency transfers. Lightweight body reduces vehicle bearing pressure and saves ambulance storage room. Matching complete medical pressure regulators and humidifier kits deliver uninterrupted stable oxygen flow throughout patient movement. Custom fleet exclusive logos and color coding realize rapid asset identification for all ambulance vehicles under the same medical group, perfectly matching group bulk procurement demands.
Scene Three: Chain Rehabilitation Institutions & Elderly Care Groups
Chain nursing homes and rehabilitation centers host hundreds of long-term COPD and post-operation patients requiring daily long-duration oxygen therapy. Small-capacity cylinders need frequent refills, boosting facility operation labor costs, while heavy steel tanks are hard for caretakers to carry between multi-story wards. Unbranded mixed tanks lead to frequent asset loss and confusion across dozens of branch campuses. Dispersed individual customer orders consume sales and logistics manpower, failing to bring stable long-term profits for equipment procurement suppliers. Midstar 15L large-volume aluminum cylinder extends single refill service cycles, cutting daily replacement workload for institutional staff. One-button simple flow adjustment is operable by untrained caregivers without professional medical background. Clear safety markings and anti-misoperation valves prevent misuse by elderly residents. Complete ISO 7866 & DOT-3AL global certifications fully meet medical and pension institution inspection standards. We offer full-container stable global delivery and full OEM customization services, helping group purchasers lower comprehensive procurement costs and abandon low-margin scattered retail orders.
Full-process support from concept to mass production: From drawing review, prototype making to mass production and quality inspection, we offer one-stop services, significantly shortening your product launch cycle.
Flexible cooperation based on demand: Whether it's a small-batch trial order or a long-term large-scale framework purchase, we can offer competitive tiered pricing and stable inventory planning.
Cross-industry application expert: Our gas cylinder solutions have been successfully applied in fire-fighting equipment, medical devices, diving equipment and the beverage industry. We are glad to apply our cross-industry experience to solve your specific challenges.
Regarding packaging
In order to deliver our products to you in the condition in which they were sent, we use strict, strong, efficient and environmentally friendly packaging methods.
Our standard packaging method for our products is to cover them with plastic bags, put them into cartons, then place the cartons on pallets and wrap them tightly with stretch film to ensure that the cylinders do not collide with each other during transportation. Other packaging methods can be provided upon request.
Certification system of Midstar
• U.S. market: DOT-3AL (U.S. Department of Transportation Standard for Aluminum Alloy Gas Cylinders)
• EU market: TPED /EU + PED /EU (Dual Directive compliance)
• International standard: ISO 7866 (Global Technical Benchmark for Gas Cylinder Industry)
• UK market: BS 5045-8 (UK National Standard)
• Chinese market: GB/T 11640 (National Recommended Standard of China)
All certifications are reviewed and issued by international authoritative institutions to ensure the authenticity and traceability of compliance documents.
Professional service commitment
We offer comprehensive support, not just products.
Bulk purchasing plan: Based on your annual purchasing volume, we offer tiered preferential prices and flexible delivery plans.
Customized services: Supports institutional customization of gas cylinder colors and markings, facilitating asset identification and management.
Training and Guidance: Provide training on product usage and safety regulations for your team.
After-sales service and Inspection: We offer regular safety inspection services for gas cylinders or assist in contacting qualified local inspection institutions.
Call to action
To the Procurement Managers of Institutions, if you are evaluating or updating equipment, we can provide you with:
Free sample experience: Test the lightness and reliability of the product in person.
Contact our B2B sales team immediately to get a personalized quotation and solution.
FAQs
Q:What is the oxygen content of a size E cylinder?
A:An oxygen-filled e-cylinder has a service pressure of 1900 psi. One e-cylinder holds 660 litres of oxygen.
Q:How much PSI does a full oxygen tank have?
A:About 2000 psi will indicate a full cylinder. The gauge reaches your doctor's recommended flow rate.
Q:How long is the lifespan of an e-cylinder oxygen tank?
A:Up to 2200 PSIG of pressure can be applied to oxygen cylinders. A full E-cylinder will give 22 hours of gas flow at a flow rate of 0.5 L/min.
