The automotive CNG cylinder shown on this page comes with an outer diameter of 406mm and uniform wall thickness of 6.1mm. It is designed with varied lengths to allow changes in cylinder capacity. We can offer 406mm automotive CNG cylinders with minimum capacity of 82L and maximum capacity of 200L. Each type of cylinder offers different length and weight. For instance, our 90L automotive CNG cylinder has a length of 910mm and weight of 76kg, our 110L CNG cylinder has 1075mm length and weighs 89kg, and our 145L compressed natural gas cylinder has a length of 1365mm and weighs 111kg.

Quality of the 406mm Automotive CNG Cylinder
According to Chinese national and international related standards, a gas cylinder requires only ultrasonic testing. However, in our CNG cylinder production and testing process, we found that ultrasonic testing is able to detect and find out the flaws and defects of the cylinder body but cannot detect any flaws at both cylinder ends. Therefore, we use high precision magnetic particle inspection equipment to conduct another inspection of our CNG cylinders, so as to avoid gas cylinders with flaws at the ends which can be caused by improper heat treatment or inconsistence in raw material quality.

Appearance Advantage of the 406mm Automotive CNG Cylinder
Instead of conventional painting methods, we utilize a powder coating method for our gas cylinder. Coated according to international standards, the cylinder surface is provided with improved ductility and malleability and can effectively avoid coating peeling phenomenon, as compared with traditional liquid paint coating. The powder coating also improves the luster of the cylinder surface.

Usage Instruction on the 406mm Automotive CNG Cylinder
The working pressure for our CNG cylinder is the designed gas filling pressure of 15℃ (20Mpa).

Chemical Composition of the Steel Material for 406mm Automotive CNG Cylinder Production
Material designation: 30CrMo

Composition	C	Si	Mn	P	S	P+S	Cr	Mo	V	Ni	Cu
Content (%)	0.26- 0.34	0.17- 0.37	0.40- 0.70	≤ 0.020	≤ 0.020	≤ 0.030	0.80- 1.10	0.15- 0.25	-	≤ 0.3	≤ 0.2

Technical Specifications of the 406mm Automotive CNG Cylinder

Type	Outer Diameter (mm)	Capacity (L)	Length excluding valve (mm)	Weight (kg)	Designed wall thickness (mm)	Working Pressure (MPa)	Material
CNG2-G-406-82-20B	406	82	840	71	6.1	20MPa	30CrMo
CNG2-G-406-90-20B		90	910	76
CNG2-G-406-100-20B		100	990	82
CNG2-G-406-101-20B		101	1000	83
CNG2-G-406-110-20B		110	1075	89
CNG2-G-406-120-20B		120	1160	95
CNG2-G-406-130-20B		130	1240	101
CNG2-G-406-140-20B		140	1320	107
CNG2-G-406-145-20B		145	1365	111
CNG2-G-406-150-20B		150	1405	114
CNG2-G-406-170-20B		170	1570	127
CNG2-G-406-180-20B		180	1655	133
CNG2-G-406-195-20B		195	1780	143
CNG2-G-406-200-20B		200	1820	146

BANNER is a specialized 406mm automotive CNG cylinder manufacturer based in China. Our wide range of products includes 279mm CNG cylinder, 325mm automotive CNG cylinder, 356mm automotive CNG cylinder, and more.