Import Cng Cylinder — Buy in Bulk from Supplier in China

The CNG cylinder from Shanghai Dongji Automatic Control Equipment Ltd. is a high-pressure vessel manufactured for automotive and industrial gas storage, with water capacities ranging from 20L to 80L and a working pressure of 200 bar. The cylinder body is constructed from high-strength steel with a minimum tensile strength of 750 MPa, designed to meet DOT 3AA and ISO 11439 requirements. The listing specifies leak testing and corrosion-resistant coatings as part of the production process, but does not provide material grade details.

The cylinders are treated with protective coatings to resist environmental degradation, particularly in humid or coastal climates. The manufacturing process includes hydrostatic testing at 300 bar and mandatory leak detection prior to packaging. While the listing confirms ISO and DOT compliance, it does not specify whether cylinders are produced under a certified quality management system or if batch records are retained. Typical wall thickness for a 60L cylinder is approximately 5.0mm, based on industry norms.

These cylinders are commonly purchased by vehicle conversion workshops, municipal fleet operators, and regional gas distributors in Latin America and Africa. Orders are typically placed in quantities of 100 to 1,000 units, packaged in steel pallets or wooden crates to prevent transit damage. Trade terms include FOB Shanghai and CIF destination ports, with payment via T/T or L/C. Lead time is not stated but generally aligns with 30 to 45 days after order confirmation.

Shanghai Dongji Automatic Control Equipment Ltd. is registered in the Minhang District of Shanghai, with a business address listed in the Qiu Jiang Road commercial building. The company is classified as an imported supplier with harbor trust tier, indicating verified export history. No information is provided on manufacturing facilities, workforce size, or years in operation. The listing does not confirm whether the company owns production lines or acts as a trading intermediary.

The supplier’s response rate and average response time are recorded as zero, suggesting no active buyer communication channel on the platform. There are no published certifications, client testimonials, or factory photos. Buyers must rely on third-party inspection and documentation provided with shipments. The supplier’s focus appears to be on export logistics rather than direct technical support.