Full-automatic Gram dyeing machine (type B) is a new generation of bacterial dyeing machine independently developed by Zhengzhou Zhongpu. It fully owns independent intellectual property rights and is developed for bacterial Gram dyeing to meet the high requirements of Gram dyeing. It not only uses high-definition drop dyeing to prevent cross-contamination between samples, but also provides the accurate time dyeing requirements for Gram dyeing. The equipment provides automatic drying module, that is, to ensure the preheating of the coating before dyeing, It also ensures the drying of the coating after dyeing, which has the technical characteristics of good biological safety, simple operation and particularly good dyeing effect.