
Refillable Argon Gas Cylinder
| Specially designed for welding workshops, gas distributors and precision‑research laboratories
Provide reliable and lightweight inert‑gas storage solutions for welding workshops, industrial gas distributors, precision laboratories and high‑tech manufacturing enterprises. Solve the problems you face in scenarios such as workshop welding operations, gas fleet rental management and high‑purity gas supply where stable argon gas delivery is critical. Holding ISO 7866, DOT‑3AL and TPED international certifications, it supports bulk purchasing and OEM customization of cylinder colors, enterprise logos and 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 | ||||
| MS-80-250-H-01 (3 ~ 8)L |
80 | 3.15 | 0.6 | 1.32 | 240 | 9.45 | 0.9 | 1.98 | 166.6/2415 | 250/3625 | TPED |
| 0.9 | 1.98 | 320 | 12.6 | 1.2 | 2.65 | ||||||
| 1.5 | 3.31 | 480 | 18.9 | 1.7 | 3.75 | ||||||
| MS-133-250-H-01 (3 ~ 8)L |
133 | 5.24 | 3.5 | 7.72 | 400 | 15.75 | 3.9 | 8.6 | |||
| 5 | 11.02 | 550 | 21.65 | 5.1 | 11.24 | ||||||
| 8 | 17.64 | 825 | 32.48 | 7.4 | 16.31 | ||||||
| MS-159-250-H-01 (3 ~ 8)L |
159 | 6.26 | 5.9 | 13.01 | 480 | 18.9 | 6.8 | 14.99 | |||
| 8 | 17.64 | 620 | 24.41 | 8.5 | 18.74 | ||||||
| 12.8 | 28.22 | 930 | 36.61 | 12.1 | 26.68 | ||||||
| MS-203-250-H-01 (3 ~ 8)L |
203 | 7.99 | 12.7 | 28 | 609 | 23.98 | 13.9 | 30.64 | |||
| 13.4 | 29.54 | 636 | 25.04 | 14.4 | 31.75 | ||||||
| 21.5 | 47.4 | 954 | 37.56 | 20.4 | 44.97 | ||||||
| MS-140-15-H-01 (3 ~ 8)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 | ||||||
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.



Three major application scenarios for refillable argon gas cylinder
Scene One: Welding Manufacturing Workshop
In welding and metal‑fabrication workshops, traditional steel argon cylinders are heavy and prone to surface rust. Frequent manual moving brings labor‑intensive handling and potential workplace injury risks. Rusted cylinder surfaces also increase maintenance costs and create untidy working‑site conditions. Midstar refillable argon gas cylinder adopts seamless aviation‑grade aluminum alloy with 30% weight reduction compared to equivalent steel models, allowing single‑person handling and relocation. Corrosion‑resistant aluminum construction avoids rust issues even in humid workshop environments. Uniform cylinder specifications simplify site asset management for multi‑workshop facilities. Standard‑compliant valve interfaces guarantee operational safety for rotating shift workers.
Scene Two: Industrial Gas Distributor Wholesale & Rental Business
For industrial‑gas distributors and rental fleets, heavy steel cylinders raise logistics and shipping expenses. Rust damage shortens service life and increases inspection and scrapping frequency. Mixed cylinder specifications complicate inventory sorting and asset tracking for bulk rental stock. Midstar refillable argon gas aluminum cylinders feature light‑weight design to cut transportation costs for regional distribution. Natural anti‑corrosion performance extends service cycles and lowers long‑term replacement expenditure. Custom‑printable logos and serial marking support fleet asset traceability. Large‑volume consistent production meets distributors' bulk procurement demands for rental and resale inventory.
Scene Three: Precision Laboratory & High‑Tech Manufacturing
Research laboratories, aerospace component factories and electronic‑manufacturing workshops require clean inert‑gas storage. Rust particles shedding from conventional steel cylinders risk gas contamination and interfere with high‑precision experimental results or critical welding quality. Heavy steel cylinders are also difficult to reposition inside compact lab spaces. Midstar refillable argon gas cylinder delivers clean inner cavity without rust debris pollution, safeguarding high‑purity argon gas quality for precision processes. Its lightweight build enables convenient re‑arrangement within limited‑space laboratories. International TPED, ISO 7866 and DOT‑3AL certifications satisfy strict factory audit requirements. OEM custom color and marking options help institutions differentiate gas assets across multiple lab zones.


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.

FAQ:
Q:What is the delivery time of this gas cylinder?
A:The delivery time of this gas cylinder is 30 days after the deposit received.
Q:What kind of certification do you provide?
A:We can provide clients TPED, CE, DOT certification.
Q: What if I don't find the size I want in the catalog?
A: Please send us your enquiry and I will confirm with you further. Because the catalog here has limited product display information.
Q: Is it available to put my logo/brand name on cylinders?
A: Yes, we support custom service. Some designs are free, such as the engraving brand name on the cylinder shoulder' stamping.There are also some designs that have to be paid for, and of course, the prices are the best.












