Production Process of Gas Cartridge

2025-06-28

In daily life, Gas Cartridge is highly favored for its compact, portable, and convenient advantages. Whether it's providing continuous power for portable stoves during outdoor camping, assisting in hot pot and barbecue cooking during family gatherings, or providing stable heat for coffee equipment during elegant afternoon tea, it plays an important role. Its standardized interface and reliable sealing design also ensure safe and worry-free use. However, to infuse this small metal canister with energy, a rigorous production process for canister gas is essential. Let's now delve into the Gas Cartridge filling production process.

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The production of cartridge gas must strictly follow safety regulations and standard procedures to ensure product quality and safety. The specific process is broken down as follows:

1. Valve placement: laying the foundation for sealing

Using automated equipment, standard valves are precisely placed in the corresponding positions on the top of the cartridge canisters, laying a solid foundation for subsequent sealing operations and gas delivery.

2. Filling machine: Combines vacuuming, sealing, and filling into one unit

Vacuuming process

Connect the cartridge canister with the valve in place to the vacuum equipment and perform deep vacuuming of the canister to completely remove residual air and impurities. This process not only avoids safety hazards caused by mixing filling gas with air but also ensures gas purity, effectively improving filling efficiency and filling volume.

Valve Sealing

Using specialized equipment and processes, the valves are sealed to ensure a tight fit between the valve and can body, forming a robust and reliable seal structure that eliminates the risk of gas leakage from the source.

Gas Filling

Pre-treated and precisely blended raw gases such as liquefied petroleum gas and butane are transported via pipelines to the filling production line. Using quantitative Filling Equipment, filling pressure, temperature, and filling volume are strictly controlled to precisely avoid overfilling or underfilling issues, ensuring a smooth and efficient filling process.

3. Dual detection assurance to ensure product quality

Weight detection: Automated weighing equipment is used to conduct real-time detection of filled containers. If a product fails to meet weight standards, an alarm is immediately triggered, and the non-conforming product is automatically rejected, ensuring strict quality control from a weight perspective.

Water Bath Leak Testing: Cans are immersed in a temperature-controlled water bath. By monitoring changes in internal pressure or observing the presence of bubbles, the cans undergo comprehensive leak testing to ensure no gas leakage risks exist.

4. Capping, Testing, and Packaging to Complete the Production Cycle

Outer cap pressing: Using an outer cap pressing machine, the cap is precisely positioned and secured on the cartridge canister, further enhancing the canister structure and improving product sealing and protective properties.

Comprehensive sampling inspection: In addition to airtightness testing, the filled cartridge canisters undergo rigorous inspections including gas composition analysis, pressure testing, and combustion performance testing. Only products that meet all standards can proceed to subsequent processes.

Packaging and storage: Qualified products undergo labeling, shrink-wrapping, and other packaging processes. After packaging, they are uniformly stored in the warehouse, awaiting shipment and sale. This marks the successful completion of the entire cartridge gas production process.

Wejing Intelligent Equipment Co., Ltd

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