Precision Gas Solutions for Industry & Innovation

Shandong Keloni Metal Products Co., Ltd. delivers high-performance CO2 cartridges, aluminum and carbon fiber gas cylinders, helium tanks, and N2O cream chargers — engineered for safety, durability, and global compliance.

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High Quality

Quality ranked first — every product meets strict international standards.

Growth Protection

Our products are tested rigorously to ensure reliability and safety.

Solemn Commitment

We treat product quality as the lifeblood of our company.

About Shandong Keloni

Shandong Keloni Metal Products Co., Ltd. is a leading manufacturer of high-pressure gas containers, specializing in CO2 cartridges, aluminum and carbon fiber cylinders, helium balloon tanks, and N2O cream chargers. With a strong focus on innovation, safety, and quality, we serve clients across industries including beverage, medical, culinary, aerospace, and recreation.

Our advanced semi-automatic assembly lines and dedicated R&D laboratory ensure every product undergoes rigorous testing — from air pressure and burst tests to tensile strength analysis — guaranteeing compliance with global safety standards.

10+

Years Experience

50+

Countries Served

Advanced Production Lines

Our Products

Engineered for performance, safety, and efficiency — our range includes lightweight carbon fiber cylinders, durable aluminum tanks, food-grade CO2 cartridges, and specialized helium and N2O solutions.

12G CO2 Cartridge

Threadless 12G CO2 cartridges used in air guns; 3/8 threaded version ideal for 3.8L beer machines, life-saving bracelets, and portable inflators.

• Food & industrial grade options
• High-pressure reliability
• Compact and portable

8G CO2 Cartridge

Food-grade 8G CO2 cartridges perfect for portable sparkling water machines; industrial-grade versions for air guns and pneumatic tools.

• Safe for beverage use
• Consistent gas release
• ISO-compliant materials

2.5 LB Aluminum CO2 Cylinder

Compact and versatile aluminum tank ideal for beverage dispensing systems and aquarium CO2 injection.

• Lightweight alloy construction
• Excellent low-temperature performance
• Corrosion-resistant finish

10LB Aluminum CO2 Cylinder

Durable 10 lb. aluminum CO2 cylinder with siphon tube — ideal for filling smaller tanks and commercial beverage systems.

• Includes dip tube
• Portable and reusable
• High-strength alloy

0.48L Carbon Fiber Cylinder

Ultra-lightweight composite cylinder using high-strength carbon fiber — over 50% lighter than steel equivalents.

• Leakage-before-explosion safety
• Full filament winding
• Ideal for aerospace & rescue

6.8L Carbon Fiber Cylinder

High-capacity composite cylinder built for extreme conditions — used in industrial, medical, and emergency applications.

• Over 50% weight reduction
• Superior impact resistance
• Long service life

13L / 30LB Helium Balloon Cylinder

Professional-grade helium tank for event decoration, scientific use, and lifting applications.

• High-purity helium
• Durable aluminum construction
• Regulator-ready valve

22L / 50LB Helium Balloon Cylinder

Large-capacity helium cylinder for commercial events, advertising, and industrial use.

• Up to 22.4L capacity
• Built-in safety valve
• Reusable and refillable

N2O Cream Charger

Precision nitrous oxide chargers for culinary foams, whipped cream dispensers, and molecular gastronomy.

• Food-safe stainless steel
• Consistent gas release
• Compatible with all standard dispensers

Why Choose Keloni?

From material selection to final inspection, every step of our process is designed to deliver unmatched quality, safety, and performance.

🔬

Advanced Testing

Air pressure, burst, and tensile testing ensure every cylinder meets global safety standards.

🛡️

Leakage-First Safety

Carbon fiber cylinders designed to leak before catastrophic failure — maximizing user safety.

⚡

50% Lighter

Carbon fiber construction reduces weight significantly compared to traditional steel tanks.

🌍

Global Reach

Trusted by customers in over 50 countries for reliable, high-performance gas solutions.

Frequently Asked Questions

Get answers to common inquiries about our products and services.

Are your CO2 cartridges food-grade?

Yes, we offer food-grade 8G and 12G CO2 cartridges suitable for use in portable sparkling water machines and beverage dispensers.

What is the advantage of carbon fiber cylinders?

Carbon fiber cylinders are over 50% lighter than steel tanks and feature a "leakage before explosion" failure mode, significantly improving safety under stress.

Do you offer custom labeling or branding?

Yes, we support OEM/ODM services including custom labels, packaging, and valve configurations for bulk orders.

How are your cylinders tested?

Each cylinder undergoes air pressure testing, burst testing, and tensile strength analysis in our in-house laboratory to ensure compliance with international standards.

Can I refill the CO2 cartridges?

No, 8G and 12G CO2 cartridges are single-use and non-refillable for safety reasons. Larger aluminum and carbon fiber cylinders are refillable.

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