Shandong Yongan Special Equipment Co.,Ltd

Our high-pressure seamless steel CNG cylinders are engineered specifically for the automotive and gas storage industries.
Utilizing high-quality 34CrMo4 alloy steel and advanced spinning technology, they provide the perfect balance between lightweight design and maximum safety.

Technical specifications: manufacturing standard fully compliant with ISO 11439/ECE R110 for vehicle use and ISO 9809 for industrial storage.
Material: premium chromium-molybdenum steel (34CrMo4) known for superior fatigue resistance.
Service pressure: 200 BAR; test pressure: 300 BAR.
Water capacity: 30L, 35L, 40L, 45L, 50L, 55L, 60L, 65L, 70L, 75L, 80L, 90L, 100L, 120L, 130L, 140L, 150L, 160L, 170L, 180L, 190L.
Outside diameter: 232 mm, 267 mm, 279 mm, 325 mm, 356 mm, 406 mm.
Wall thickness: precision-controlled for optimal weight reduction without compromising strength.
Surface treatment: internal and external anti-corrosion coating (epoxy or powder coating).

Why YA Special Equipment is your trusted partner:
market authority – 70% domestic market share in China supporting the world's largest CNG vehicle fleet;
extreme safety assurance – every cylinder undergoes 100% ultrasonic testing (UT), magnetic particle testing (MT), and hydrostatic testing in our gas cylinder lab;
global export footprint – widely used in 30+ countries, especially South America, Southeast Asia, and Central Asia; zero-failure record – advanced heat treatment ensures excellent low-temperature toughness and high-pressure stability.

Applications: CNG vehicles including passenger cars, taxis, buses, and heavy-duty trucks; gas infrastructure such as CNG cascading systems and mother-daughter filling stations.