The DOT-3AL Aluminum CO₂ Cylinder is a premium, high-pressure gas receptacle engineered specifically for the North American beverage industry.
Ideal for draft beer systems, soda dispensers, and commercial carbonation, it combines a superior strength-to-weight ratio with exceptional corrosion resistance and strict DOT compliance for safe, reliable performance.
Manufactured from high-strength AA6061-T6 aluminum alloy, our seamless cold-extruded cylinders are designed for optimal CO₂ storage and transport.
Ranging from 0.42L to 43.4L in capacity, each unit undergoes strict heat treatment, 100% hydrostatic testing, and rigorous DOT inspections.
The non-reactive aluminum core preserves absolute carbon dioxide purity, preventing the metallic off-tastes commonly associated with aging steel tanks, making it the perfect choice for food-grade applications.
Advantages:
North American Ready: Fully certified for legal filling, commercial use, and transport throughout the United States and Canada.
Lightweight Ergonomics: Significantly lighter than steel alternatives, reducing physical strain on delivery drivers and staff during routine changeouts.
Ultimate Corrosion Resistance: Naturally resistant to rust and oxidation, ensuring a long service life even in high-humidity commercial kitchens.
OEM & Distributor Friendly: Flexible customization (branding, colors, valves, and carry handles) reduces downstream integration efforts and supports private-label programs.
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 / UN ISO 7866 designed
DOT certified
Volume:
0.42L- 43.4L
Diameter:
60, 81.5, 111.3, 133.4, 175, 203.2, 218mm
Thread:
<3.4L with 0.750-16 UNF / M18x1.5
≥3.4L with 1.125-12 UNF
Finish:
brushed polish (standard finish)
powder coating / clear coating (optional)
Graphic:
shrink sleeve / label / silkscreen logo (optional)
Accessories:
valve / carrying handle installed upon request
DOT-3AL Series
Model
Work Pressure
(psi)
Test Pressure
(psi)
Water Volume
(l)
CO₂ Capacity
(lbs)
N₂ Capacity
(cu ft)
Diameter
(mm)
Length
(mm)
Weight
(kg)
Thread
DOT-B1
1800
3000
0.66
1
2.9
81.5
203
0.70
0.750-16UNF
DOT-B1.5
1800
3000
1.0
1.5
4.3
81.5
280
0.89
0.750-16UNF
DOT-B1.8
1800
3000
1.17
1.8
5.1
81.5
320
0.98
0.750-16UNF
DOT-B2
1800
3000
1.4
2
6.1
111.3
241
1.45
0.750-16UNF
DOT-B2.5
1800
3000
1.7
2.5
7.3
111.3
280
1.62
0.750-16UNF
DOT-B5
1800
3000
3.4
5
14.7
133.4
364
2.93
1.125-12UNF
DOT-B10
1800
3000
6.7
10
29.0
175
422
6.10
1.125-12UNF
DOT-B15
1800
3000
10.0
15
43.2
175
590
7.84
1.125-12UNF
DOT-B20
1800
3000
13.4
20
57.9
203.2
596
11.03
1.125-12UNF
DOT-B22
1800
3000
14.7
22
63.5
203.2
644
12.00
1.125-12UNF
DOT-B25
1800
3000
16.8
25
72.2
203.2
725
13.23
1.125-12UNF
DOT-B35
1800
3000
23.4
35
101.1
203.2
965
16.67
1.125-12UNF
DOT-B50
1800
3000
33.4
50
144.3
218
1180
21.84
1.125-12UNF
Custom dimensions / specifications available upon request
UN ISO 7866 Series
Model
Work Pressure
(bar)
Test Pressure
(bar)
Water Volume
(l)
CO₂ Capacity
(kg)
Diameter
(mm)
Length
(mm)
Weight
(kg)
Thread
UN-0.6L
166.7
250
0.60
0.45
60
329
0.63
M18x1.5
Custom dimensions / specifications available upon request
