1. Product Description

The 615 g and 640 g Ronghai cylinders share the same seamless 1.0 L steel body and differ only in filling weight, allowing customers to choose the dosing level matched to their dispenser and market labeling rules.

Both versions are cleaned, dried and filled under food-grade controls, and are equivalent to roughly 80 standard 8 g chargers per cylinder.

• Same 1.0 L cylinder, two certified fill weights available
• Food-grade internal cleaning and drying process
• Individual serial number and batch traceability

2. Technical Specifications

• Contents: Food-grade N2O (E942), purity 99.95% min.
• Net weight options: 615 g ± 5 g / 640 g ± 5 g
• Water capacity: 1.0 L
• Tare weight: Approx. 1.10 kg
• Test pressure: 250 bar
• Valve thread: M11 x 1
• Diameter: Approx. 76 mm
• Overall height: Approx. 315 mm
• Carton packing: 6 cylinders per carton
• 20GP / 40HQ loading: Approx. 9,000 / 21,000 cylinders (cartoned)

3. Quality Control

Every production lot undergoes: incoming coil inspection, ultrasonic seam control on seamless tubes, hydrostatic pressure testing at 250 bar, internal cleanliness verification, net-weight sampling and final leak testing before palletizing.

• Hydrostatic test 250 bar
• 100% net-weight sampling on automated check weighers
• Helium leak detection on valve assemblies

4. Markets & Documents

Typical shipping documents include commercial invoice, packing list, MSDS, certificate of origin, COA per lot and TPED/DOT certificates according to destination. Contact sales@dzrjyl.com for the document pack of your market.