The 13mm mold of the compaction density tester is suitable for conducting compaction density tests on powder materials such as lithium iron phosphate and graphite. The imported and domestically produced compaction molds from Europe and America have complete dimensions, sturdy and durable texture, and will not deform due to long-term use. The mold operation is simple and convenient, and even for first-time use, it can be quickly mastered. The maintenance cost of the compaction mold is low, and it is suitable for testing the compaction density of powder materials such as lithium iron phosphate and graphite. It can also be used to determine the compaction density of powders and particles with similar characteristics.