Powering Modern Urban Transit: Inside the 680L Type 2 CNG Storage System for 9m City Buses

As public transport shifts toward cleaner energy, heavy-duty 9-meter CNG buses—equipped with 225HP Yuchai engines, Fast 6-speed gearboxes, and 5500mm wheelbases—demand reliable, lightweight fuel storage

As a specialized CNG cylinder manufacturer, we engineered a 680L Type 2 CNG cylinder system (5×120L + 1×80L) tailored for high-frequency urban routes:

120L Type 2 CNG Cylinder: Ø325mm | Length: 1690mm | Weight: 86kg

80L Type 2 CNG Cylinder: Ø356mm | Length: 1016mm | Weight: 61.3kg

Core Construction: 30CrMo seamless steel liner hoop-wrapped with fiberglass (200 bar WP / 300 bar TP) ⚙️

This optimized composite design reduces vehicle curb weight while maximizing driving range and fleet uptime. Looking for certified high-pressure gas storage solutions for your commercial vehicles or OEM bus projects? Contact our engineering team today!