Why Partner with Us for LPG Gas Cylinder Components?
Significant Cost Reduction for Manufacturers
By sourcing ready-to-weld LPG cylinder shells directly from China's mature steel supply chain, cylinder manufacturers can bypass high capital expenditure on heavy deep-drawing presses, complex tooling maintenance, and raw material scrap loss.
Certified Material & Superior Weldability
Our standard heads are produced using prime HP295 gas cylinder steel, ensuring high tensile strength, excellent ductility, and flawless circumferential automated welding. Material grades can also be customized (e.g., SG295, SG325, or high-strength steels) to comply with localized regulations and standards such as ISO 4706, EN 1442, or DOT.
High Dimensional Precision & Uniformity
Every upper and lower dome is formed with strict control over wall thickness tolerance, concentricity, and edge alignment, ensuring consistent joint fit-up for automatic submerged arc or MAG welding lines.
Technical Specifications
Feature |
Specification Details |
| Product Name | LPG Cylinder Upper Head & Lower Head / Cylinder Shell Halves |
| Category | LPG Cylinder Parts & Components |
| Standard Material | HP295 Steel (Custom grades available based on target markets) |
|
Wall Thickness Range |
2.00 mm – 3.50 mm (Tailored to cylinder capacity) |
Key Features & Advantages
1.Customized Dimensions & Wall Thickness:
We engineer upper and lower shells to meet your exact cylinder specs, whether for compact domestic 3kg units or heavy-duty commercial 50kg cylinders.
2.Pre-Assembled Valve Bosses / Collars:
Upper heads can be supplied with precision-threaded valve sockets pre-welded or pre-punched, streamlined for immediate ring and guard assembly.
3.Smooth Surface & Anti-Rust Protection:
Treated with light rust-inhibitor oil or custom surface protection to ensure optimal condition during international ocean freight.
OEM & Customization Services for Global Cylinder Plants
We recognize that gas cylinder regulations vary across regions-from South America and Africa to Europe and Southeast Asia. We provide flexible OEM solutions:
1.Custom Steel Grades:
Tailored chemical compositions and tensile strengths (e.g., DP590) to minimize cylinder weight while passing burst pressure tests.
2.Custom Diameter & Height:
Designed to match your existing automated assembly lines and circumference welding fit-ups seamlessly.
FAQ
Q: What Are LPG Cylinder Upper And Lower Heads Used For?
A: Upper and lower heads are deep-drawn steel halves that form the pressure vessel body of an LPG gas cylinder once joined together by a single circumferential weld.
Q: Why Should Gas Cylinder Factories Buy Semi-Finished Cylinder Heads Instead Of Deep Drawing Raw Coil In-House?
A: Importing semi-finished heads allows manufacturers to eliminate expensive stamping presses and die wear, lower local labor expenses, and leverage China's cost-effective raw steel chain-significantly reducing overall unit manufacturing costs.
Q: Can You Supply Raw Material Test Certificates (MTC)?
A: Yes, all shipments come with comprehensive Material Test Certificates (MTC) according to EN 10204 3.1, verifying yield strength, tensile strength, and chemical composition.
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