Lijian-2 Rocket Uses Innovative Optical Cylinder Tank Structure in China

Published: Mar 31, 2026 17:04

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On March 30, Zhang Yanrui, deputy chief engineer of Zhongke Yuhang Lijian No. 2, told reporters, The first and second tanks of the Lijian-2 carrier rocket both use the optical cylinder tank structure, which is the first engineering application of the large diameter optical cylinder tank structure in China. The second tank material is 2219 aluminum alloy, and the first tank material is 5A06 aluminum alloy.

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