Medical Nitrogen Cylinder

Medical-grade high-pressure cylinders engineered for stable nitrogen gas storage and delivery in clinical, surgical, and laboratory environments. Manufactured to strict international pressure vessel standards, ensuring regulatory compliance and uncompromising safety for medical gas distributors and equipment OEMs.

Compliance is verified at every production stage. Below are standard technical parameters for our seamless steel and aluminum medical nitrogen cylinders. Custom thread types, water capacities, and working pressures are available for OEM integration.

Raw Material Verification
• Alloy Steel Sourcing: Fabricated exclusively from seamless billets of 34CrMo4 alloy steel, sourced with full mill test certificates confirming chemical composition (controlled sulfur and phosphorus limits to prevent embrittlement).
• Aluminum Sourcing: Extruded from high-purity 6061-T6 aluminum billets, providing high strength-to-weight ratios and natural corrosion resistance.

Manufacturing Workflow
• Hot Piercing & Deep Drawing: Steel billets are heated to exact forging temperatures and pierced into seamless hollow shells, eliminating longitudinal welding seams.
• Quenching & Tempering (Steel Only): Controlled thermal treatment furnace processing optimizes grain structure, achieving the mechanical tensile strength required for high-pressure containment.
• CNC Neck Forming & Thread Machining: Precision CNC machinery cuts uniform bottleneck profiles and threads (CGA, G5/8, or custom specs) to maintain gas-tight valve engagement.

• Internal Cleanliness Processing: Cylinders undergo mechanical shot-blasting followed by chemical degreasing and hot-air flushing to ensure absolute freedom from hydrocarbons, particulate matter, and moisture-meeting medical-grade purity standards.

Mandatory Testing & Inspection
• Hydrostatic Pressure Test: Every batch undergoes water-jacket testing at test pressure (TP) to measure permanent volumetric expansion, ensuring elasticity limits are maintained.
• Burst Test: Destructive batch testing verifies that burst pressure exceeds 2.5 times the working pressure.
• Ultrasonic & Magnetic Particle Inspection: Non-destructive testing (NDT) identifies internal wall defects or surface anomalies.
• Thread & Dimensional Gauge Checks: Go/No-Go gauges verify thread pitch and depth consistency.

Integrated into certified medical infrastructure and supply chains for specific critical uses:

Surgical Power Tool Systems: Provides stable, oil-free high-pressure nitrogen to pneumatic orthopedic drills, saws, and reamers.

Cryosurgical & Dermatological Units: Serves as a reliable source vessel for cryo-ablation and targeted tissue freezing equipment.

Laboratory & Analytical Instruments: Powers gas chromatographs (GC) and medical diagnostic equipment requiring ultra-pure carrier gases.

Medical Gas Distribution Networks: Scalable bulk cylinder portfolios for hospital manifold systems and mobile medical carts.

Regulatory Approvals: Manufactured in facilities holding ISO 13485 (Medical Devices Quality Management) and ISO 9001 certifications.

Export Standards: Fully compliant with ISO 9809-1 (Seamless steel gas cylinders) and TPED (Directive 2010/35/EU) for European market access, alongside DOT compliance upon request.

Traceability: Permanent laser-etched or stamped serial numbers, heat numbers, and manufacturing dates on the cylinder shoulder for complete batch tracking.

Documentation Package Provided:
Material Test Certificate (MTC) per EN 10204 3.1
Hydrostatic Test Report
Third-Party Inspection Certificate (TUV, BV, or SGS available)

When evaluating medical nitrogen cylinders for import or distribution, verify the following criteria to mitigate supply and regulatory risks:

Target Market Regulations: Confirm whether your jurisdiction requires TPED (Europe), DOT (North America), or ISO standards. Do not mix regional certifications.

Valve Compatibility: Specify matching valve inlets and outlets (e.g., CGA 580 for North America, G5/8 for Europe/Asia) to avoid secondary adapter modifications.

Internal Cleanliness Guarantee: Ensure the supplier certifies that cylinders are dried and oil-free to prevent contamination of medical gas networks or clinical instruments.

Logistics & Packaging: Verify that export-grade packaging (wooden pallets with vertical fixing frames or heavy-duty nylon mesh protection) is utilized to prevent surface impacts during ocean freight.

To receive a formal quotation, complete with freight estimates, compliance certificates, and technical drawings, contact our engineering sales team.

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