Customer Case Study | CRRC × Guangzhou HUILIN Air Separation Equipment Co., Ltd.

As a leading enterprise in high‑end equipment and new‑energy energy storage sectors, CRRC recognizes that a stable and reliable nitrogen gas supply is critical for guaranteeing energy‑storage product quality and improving system safety in the production and safety protection stages of energy‑storage projects. After multiple rounds of solution evaluation and on‑site verification, CRRC selected Guangzhou HUILIN Air Separation Equipment Co., Ltd. as its nitrogen‑making equipment supplier. HUILIN nitrogen generators have been procured repeatedly for multiple energy‑storage projects, delivering consistent and stable nitrogen supply for energy‑storage production lines and energy‑storage cabin inerting protection. The two parties have established a long‑term and stable strategic partnership.

The manufacturing of energy‑storage batteries and safety protection for energy‑storage containers impose stringent requirements on nitrogen purity, gas‑supply continuity and equipment stability. As a professional manufacturer focusing on the R&D, production and complete gas‑supply solutions of nitrogen‑making equipment, Guangzhou HUILIN leverages core PSA (Pressure Swing Adsorption) nitrogen‑generation technology. Tailored to the operating conditions of the energy‑storage industry, the company custom‑builds nitrogen‑making units for CRRC’s energy‑storage projects with the following features:

• Custom‑configured nitrogen purity and gas output to meet gas demands across multiple scenarios including cell production and energy‑storage cabin inerting;
• High‑level equipment automation, enabling round‑the‑clock stable gas supply with minor fluctuations in pressure and purity;
• Compact overall structure to fit installation spaces in workshops and energy‑storage sites, alongside low energy consumption to cut long‑term operating costs;
• Comprehensive pre‑sales technical consultation, on‑site commissioning and after‑sales operation & maintenance services to ensure smooth delivery and commissioning of multi‑batch projects.

HUILIN nitrogen generators have been delivered to CRRC’s energy‑storage project sites in successive batches. The equipment operates stably after commissioning: it continuously supplies qualified protective nitrogen to effectively isolate oxygen and safeguard the quality of energy‑storage cell production. Featuring low failure rates and easy maintenance, the equipment mitigates project shutdown risks. Repeated purchases across various projects testify to CRRC’s recognition of HUILIN’s nitrogen‑making equipment quality, delivery capacity and technical services.

“Backed by solid nitrogen‑making equipment manufacturing capability and supporting experience in the new‑energy industry, Guangzhou HUILIN provides us with reliable on‑site nitrogen‑generation solutions for our energy‑storage business. The equipment delivers stable performance with prompt delivery response, making H a trustworthy long‑term partner for gas equipment.”